2021/04/08 更新

写真a

ナガレ ヒデアキ
永禮 英明
NAGARE Hideaki
所属
環境生命科学学域 教授
職名
教授
外部リンク

学位

  • 博士(工学) ( 京都大学 )

研究キーワード

  • 水質

  • 水環境

  • resource recovery

  • 環境工学

  • water quality

  • water environment

  • 資源回収

  • Environmental Engineering

研究分野

  • 社会基盤(土木・建築・防災) / 土木環境システム

  • 環境・農学 / 環境材料、リサイクル技術

  • 環境・農学 / 環境負荷低減技術、保全修復技術

学歴

  • 京都大学   Graduate School, Division of Engineering  

    - 2001年

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  • 京都大学    

    - 2001年

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    国名: 日本国

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  • 北海道大学    

    - 1993年

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    国名: 日本国

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  • 北海道大学   Graduate School, Division of Engineering  

    - 1993年

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  • 北海道大学   Faculty of Engineering   Department of Sanitary Engineering

    - 1991年

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  • 北海道大学   工学部   衛生工学科

    - 1991年

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    国名: 日本国

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経歴

  • - Associate Professor,Graduate School of Environmental and life Science,Okayama University

    2010年

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  • - 岡山大学環境生命科学研究科 准教授

    2010年

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  • Associate Professor

    2007年 - 2010年

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  • 北見工業大学

    2007年 - 2010年

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  • 京都大学 講師

    2003年 - 2007年

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  • Senior Assistant Professor

    2003年 - 2007年

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  • Research Associate

    2002年 - 2003年

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  • 京都大学 助手

    2002年 - 2003年

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  • 京都大学 JST-CREST研究員

    2001年 - 2002年

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  • 株式会社日立製作所

    1993年 - 1998年

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  • Technical Staff

    1993年 - 1998年

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所属学協会

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論文

  • Effects of cultivation period on catch crop chemical composition and potential for bioenergy production 査読

    S. Akao, D. Yasutake, K. Kondo, H. Nagare, M. Maeda, T. Fujiwara

    Industrial Crops and Products111   787 - 793   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier B.V.  

    The first step in biofuel and/or bio-based bulk chemical material production is assessing the amounts of useful substances in a potential biomass. Sugar, nutrients, ash, and functional ingredients (such as antioxidant compounds) in premature dent corn biomass cultivated as a catch crop (plant density
    60 shoots m−2) over different cultivation periods (29 days, 49 days, 83 days) were investigated. The sugar recovery amount was estimated by multiplying two regression curves (saccharification efficiency curve, quadratic regression curve
    dry weight growth curve, Gompertz curve). A simple economic analysis for ethanol production from the catch crop biomass was also carried out using previously reported process costs and the estimated sugar recovery amount. High plant density led to accumulation of plant biomass providing high amounts of plant dry weight and derived sugars per unit area. About 2700 g DW m−2 (about 1400 g sugar m−2) was harvested in the 49-day cultivation. The amount is significant compared with biomass yields of other candidates for energy crops. The estimated sugar recovery amount reached its maximum value near the end of experimental period (79-day cultivation). The longer cultivation period was better for sugar recovery although there was a slight decrease in saccharification efficiency with cultivation time. Based on the economic analysis, a higher ethanol price (about 200% higher than the current wholesale price) would be required for catch crop financial independence with around 50-day cultivation. Production of ethanol from catch crop biomass would not be feasible in the current situation. However, condensed biomass production through catch crops is still attractive and requires further research.

    DOI: 10.1016/j.indcrop.2017.11.039

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  • 農産業における水・バイオマス循環利用に関する最新研究動向

    藤原拓, 永禮英明, 山田正人, 和木美代子, 前田守弘, 日髙平, 今井剛, 井原一高, 井上大介

    水環境学会誌40 ( 12 ) 416 - 423   2017年

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  • Non-sterile simultaneous saccharification and fermentation of corn leaves and stalks to l-lactic acid without external nutrient addition

    Satoshi Akao, Hideaki Nagare, Morihiro Maeda, Keisuke Kondo, Taku Fujiwara

    JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT18 ( 2 ) 208 - 214   2016年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:SPRINGER  

    Fermentation of lignocellulosic biomass requires auxiliary materials, including nutrients, to ensure the proliferation of microorganisms. Nutrients are usually inexpensive, but their contribution to the cost is considerable because of the very low prices of fermentation products, such as bio-ethanol. Using substances present in native lignocellulosic biomass as nutrients for fermentation was proposed and demonstrated. Leaves and stalks of corn plants were used as biomass, and nutrients were recovered as a nutrient solution by soaking them in water before alkaline peroxide pretreatment. Pretreated biomass and the nutrient solution derived from the same lot were used for non-sterile simultaneous enzymatic saccharification and thermophilic l-lactic acid fermentation (SSF). Using the nutrient solution in the saccharification step did not impact sugar recovery, and instead improved sugar yields because of the presence of eluted sugars in the solution. The l-lactic acid yield of 0.33 g g(-1) based on native biomass weight indicated that the nutrient solution functioned as a source of nutrients and sugars, especially as a source of essential phosphorus. Comparatively, autoclaved SSF yielded less or no l-lactic acid, indicating an apparent inhibitive effect derived from the nutrient solution on bacterial growth.

    DOI: 10.1007/s10163-015-0390-y

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  • Simulation of the Collection of Catch Crops for the Recovery of Agricultural Resources using Geographic and Statistical Data

    Masayuki Matsuoka, Hideaki Nagare, Taku Fujiwara

    TRANSACTIONS IN GIS20 ( 2 ) 221 - 239   2016年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:WILEY-BLACKWELL  

    The cultivation of catch crops has great potential in agricultural areas for the recovery of nutrients, mitigation of groundwater contamination, and secondary utilization of harvestry. To estimate the potential volume of catch crops that can be collected at prospective locations, we simulated the cultivation and collection process at a regional scale using geographic and statistical data. Three types of geographic data, namely the locations of greenhouses, collecting stations and road networks, were used in a geographic information system to compute the volume of collected catch crops and carrying distance between greenhouses and collecting stations. Carbon emission from transportation of the catch crop was calculated using an improved ton-km method, and the results were compared with the carbon content of the catch crop to evaluate the carbon balance. We found that the total fresh weight of the collected catch crops was 67900 t, of which 70% was collected at the top 15 of 73 stations. Carbon emissions from transportation ranged from >1 to 12% of the carbon content of the catch crop. The analytical method used in this study can readily be applied to other environmental studies concerning the collection of agricultural products and other biomass resources.

    DOI: 10.1111/tgis.12153

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  • Nitrous oxide emissions during biological soil disinfestation with different organic matter and plastic mulch films in laboratory-scale tests

    Morihiro Maeda, Eisuke Kayano, Taku Fujiwara, Hideaki Nagare, Satoshi Akao

    ENVIRONMENTAL TECHNOLOGY37 ( 4 ) 432 - 438   2016年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:TAYLOR & FRANCIS LTD  

    Nitrous oxide (N2O), which is a greenhouse gas, may be more emitted as an intermediate product of denitrification during biological soil disinfestation. The biological soil disinfestation is a method to suppress soil-borne pathogens under reductive soil conditions produced by the application of organic matter and water irrigation with plastic film. The objective of the study was to determine the effects of different organic matter and mulch films on N2O emissions during biological soil disinfestation. Grey lowland soil amended with cattle compost plus rice bran (0.2%), rice husk (0.2%) or dent corn (0.1%, 0.2% and 0.4%) was incubated at 100% water-holding capacity with or without plastic films made of polyvinyl chloride (PVC) and triple-layer polyolefin (3PO) for 72h at 50 degrees C. Permeation of the two films was also measured at 25 degrees C and 50 degrees C. Results showed that incorporation of organic matter increased N2O emissions compared with no organic matter addition at 50 degrees C. Incorporation of rice bran and dent corn with easily decomposable C and low C:N ratios increased N2O emissions for the first 12h, but thereafter, available C supply from these amendments suppressed N2O emissions. Permeability of mulch films increased at a higher temperature and was larger for PVC than for 3PO. Our study indicated that rice husk should not be used for soil disinfestation and that application rates of organic matter must be determined based on their decomposability. Moreover, mulch film covering would not suppress N2O emission in biological soil disinfestation because of high temperature.

    DOI: 10.1080/09593330.2015.1092494

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  • Nitrous oxide and carbon dioxide emissions from paddy soil treated with rice husk products at different moisture contents in a short-term experiment

    Ha, T.K.T, Maeda, M, Fujiwara, T, Nagare, H, Akao, S, Tran, Q. T

    Journal of Environmental Science for Sustainable Society7   9 - 15   2016年

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  • 大型水生植物からのリン回収

    永禮英明, 渡辺諒, 藤原拓, 赤尾聡史, 前田守弘

    土木学会論文集G (環境)72 ( 8 ) III_249-III_254   2016年

  • Effects of soil type and nitrate concentration on denitrification products (N2O and N-2) under flooded conditions in laboratory microcosms

    Thi Kim Thanh Ha, Morihiro Maeda, Taku Fujiwara, Hideaki Nagare, Satoshi Akao

    SOIL SCIENCE AND PLANT NUTRITION61 ( 6 ) 999 - 1004   2015年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:TAYLOR & FRANCIS LTD  

    Denitrification products nitrous oxide ((N2O) and nitrogen (N-2)) were measured in three flooded soils (paddy soil from Vietnam, PV; mangrove soil from Vietnam, MV; paddy soil from Japan, PJ) with different nitrate (NO3-) concentrations. Closed incubation experiments were conducted in 100-mL bottles for 7d at 25 degrees C. Each bottle contained 2g of air-dried soil and 25mL solution with NO3- (concentration 0, 5 or 10mgNL(-1)) with or without acetylene (C2H2). The N2O + N-2 emissions were estimated by the C2H2 inhibition method. Results showed that N2O + N-2 emissions for 7d were positively correlated with those of NO3- removal from solution with C2H2 (R-2=0.9872), indicating that most removed NO3- was transformed to N2O and N-2 by denitrification. In PJ soil, N2O and N-2 emissions were increased significantly (P<0.05) by the addition of greater NO3- concentrations. However, N2O and N-2 emissions from PV and MV soils were increased by the addition of 0 to 5mgNL(-1), but not by 5 to 10mgNL(-1). At 10mgNL(-1), N-2 emissions for 7d were greater in PJ soil (pH 7.0) than in PV (pH 5.8) or MV (pH 4.3) soils, while N2O emissions were higher in PV and MV soils than in PJ soil. In MV soil, N2O was the main product throughout the experiment. In conclusion, NO3- concentration and soil pH affected N2O and N-2 emissions from three flooded soils.

    DOI: 10.1080/00380768.2015.1094747

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  • Combined use of sugars and nutrients derived from young maize plants for thermophilic L-lactic acid fermentation

    S. Akao, H. Nagare, M. Maeda, K. Kondo, T. Fujiwara

    INDUSTRIAL CROPS AND PRODUCTS69   440 - 446   2015年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ELSEVIER SCIENCE BV  

    Fermentation of lignocellulosic biomass requires auxiliary materials such as nutrients for fermentation. Because of the low prices of fermentation products such as bioethanol, the costs of nutrients are not negligible. We have developed the concept of using substances natively present in lignocellulosic biomass as nutrients for the downstream fermentation. The leaves and stalks of young dent corn plants were used as biomass and the nutrients were recovered by soaking them in water before alkaline pretreatment, followed by enzymatic saccharification and fermentation. Performing thermophilic L-lactic acid fermentation using these recovered nutrients support their use as commercially feasible alternatives. A level of recovered nutrients of 40% was sufficient to support the fermentation of recovered sugars derived from the same corn biomass. However, the amount of recovered nutrients required for fermentation was almost double that when using yeast extract based on the amounts of nitrogen and/or phosphorus added. The nitrogen and phosphorus balances in the process indicated that adding nutrients was crucial for promoting fermentation based on the amounts of nitrogen and phosphorus. The nutrients proposed were considered to be effective for fermenting biomass pretreated by alkaline, dilute add, and hydrothermal methods. (C) 2015 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.indcrop.2015.02.055

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  • Development of a new wastewater treatment process for resource recovery of carotenoids 査読

    H. Sato, H. Nagare, T. N. C. Huynh, H. Komatsu

    WATER SCIENCE AND TECHNOLOGY72 ( 7 ) 1191 - 1197   2015年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:IWA PUBLISHING  

    A new wastewater treatment process that involves coagulation, ozonation, and microalgae cultivation has been developed. Here, two challenges are discussed. The first was minimizing phosphorus removal during coagulation in order to maximize algal production. The second was to optimize microalgae cultivation; algal species that grow rapidly and produce valuable products are ideal for selection. Haematococcus pluvialis, which produces the carotenoid astaxanthin, was used. Growth rate, nutrient removal ability, and astaxanthin production of H. pluvialis in coagulated wastewater were investigated. After coagulation with chitosan, the turbidity and suspended solids decreased by 89% +/- 8.4 -> 8% and 71 -> 73% +/- 16%, respectively. The nitrogen and phosphorus contents of the supernatant remained at 86% +/- 6% and 69 -> 67% +/- 24%, respectively. These results indicate that coagulation with chitosan can remove turbidity and SS while preserving nutrients. H. pluvialis grew well in the supernatant of coagulated wastewater. The astaxanthin yield from coagulated wastewater in which microalgae were cultured was 3.26 mg/L, and total phosphorus and nitrogen contents decreased by 99.0% +/- 1.4% -> 99% + 1% and 90.3% +/- 7.6% -> 90% +/- 8% (Days 31-35), respectively.

    DOI: 10.2166/wst.2015.330

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  • リン酸カルシウム沈殿生成による養豚場放流水の水質改善と溶解平衡計算

    永禮英明

    土木学会論文集G (環境)71 ( 7 ) III 323-III 328   2015年

  • Advantages of pre-harvest temporal flooding in a catch crop field in relation to soil moisture and nutrient salt removal by root uptake

    Daisuke Yasutake, Kenkichi Awata, Keisuke Kondo, Shinzo Yamane, Masayuki Matsuoka, Morihiro Maeda, Hideaki Nagare, Ryosuke Nomiyama, Yuki Sago, Masaharu Kitano, Taku Fujiwara

    BIOLOGIA69 ( 11 ) 1577 - 1584   2014年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:DE GRUYTER OPEN LTD  

    Catch crop cultivation coupled with subsequent flood activity is an environmental friendly method of removing nutrient salts from soil in greenhouse. However, in comparison with the usual fallow period in greenhouse horticulture in Japan, a longer time is required for cultivation and soil drying after flooding. To minimize such time while retaining catch crop performance, temporal flooding was conducted in an experimental catch crop field of corn before harvest (i.e., pre-harvest temporal flooding), when crops were growing well and most nutrient salts within the soil had been taken up by the roots. Results showed that pre-harvest temporal flooding enhanced crop growth and stomatal opening; hence, evapotranspiration (mostly transpiration) was increased to a high value (3.5 times that of bare soil plot in greenhouse). Therefore, compared with the bare soil field, there was a remarkable pronounced decrease in the soil water content due to evapotranspirational water loss in the catch crop field after temporal flooding. Furthermore, the total nutrient (nitrogen) uptake by crops was also significantly accelerated in relation to pre-harvest flooding owing to the increase in crop growth. It was also found that electrical conductivity and nitrate nitrogen concentration of soil solution (at a soil-water ratio of 1:5) decreased with time owing to root uptake, and were at a fairly low level when pre-harvest flooding was conducted. These results suggest that pre-harvest temporal flooding shortens the implementation time by accelerating soil drying, and increases salt removal by root uptake; thus, this method delivers considerable advantages for practical use in catch crop cultivation.

    DOI: 10.2478/s11756-014-0470-9

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  • Characteristics of Nutrient Salt Uptake Associated with Water Use of Corn as a Catch Crop at Different Plant Densities in a Greenhouse

    D. Yasutake, C. Kiyokawa, K. Kondo, R. Nomiyama, M. Kitano, M. Mori, S. Yamane, M. Maeda, H. Nagare, T. Fujiwara

    PEDOSPHERE24 ( 3 ) 339 - 348   2014年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:SCIENCE PRESS  

    Dent corn, as a catch crop used for salt removal, was cultivated at different densities, i.e., 7.3 (low density), 59.7 (normal density), and 119.5 plants m(-2) (high density), during a 50 d fallow period after cultivation of a commercial crop in a greenhouse, to analyze the characteristics of nutrient salt (N, K, Mg, and Ca) uptake by roots and to study the effect of plant density on the characteristics associated with crop water use. Leaf area index for the high and normal density treatments reached extremely high values of 24.3 and 14.9, respectively. These values induced higher transpiration rates that were estimated using the Penman-Monteith model with the incorporation of specific parameters for crop and greenhouse conditions. The total N, K, Mg, and Ca contents in the crop canopy at harvest were 26.8, 13.0, 1.0, and 1.7 g m(-2), respectively, under the high density treatment. The dynamics of salt uptake rates for high, normal, and low density treatments were evaluated by assessing weekly changes in salt content, and were subsequently compared against the transpiration rate. A positive linear relationship was obtained between these 2 parameters for: all 3 density treatments and all tested salts. Hence, higher transpiration rates caused higher salt uptake rates through water absorption. On the other hand, salt uptake efficiency per unit water use by cultivation was lower in the low density treatment. Therefore, management procedures with dense planting that induce higher transpiration rates and lower evaporation rate are extremely important for the effective cultivation of corn catch crops.

    DOI: 10.1016/S1002-0160(14)60020-5

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  • クリーニングクロップ-乳酸発酵システムの環境負荷量および収益性の評価

    増田貴則, 松岡真如, 山田正人, 長谷隆仁, 赤尾聡史, 永禮英明, 藤原拓

    土木学会論文集G70 ( 7 ) III_483-III_491   2014年

  • Cascade utilization of water chestnut: recovery of phenolics, phosphorus, and sugars

    Satoshi Akao, Koutaro Maeda, Yoshihiko Hosoi, Hideaki Nagare, Morihiro Maeda, Taku Fujiwara

    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH20 ( 8 ) 5373 - 5378   2013年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:SPRINGER HEIDELBERG  

    Overgrowth of aquatic plants, such as water chestnut, has been reported as a regional problem in various areas. We proposed cascade utilization of water chestnut through the recovery of phenolics, phosphorus, and sugars. Phenolics were extracted using 50 g (wet weight) of biomass with 300 mL of acetone, methanol, or hot water, and the yields of total phenolics were 80.2, 56.2, and 49.7 mg g(-1) dry weight of native biomass, respectively. The rate of eluted phosphorus in the phenolic extraction step was 8.6, 14.8, and 45.3 % of that in the native biomass, respectively, indicating that the use of polar organic solvents suppressed phosphorus elution at the phenolic extraction step. Extraction of phosphorus following the phenolic extraction was combined with alkaline pretreatment (1 % NaOH solution) of biomass for saccharification; 64.1 and 51.0 % of phosphorus in the native biomass were extracted using acetone and methanol for the phenolic extraction, respectively. Saccharification following the alkaline pretreatment showed that the glucose recovery rates were significantly increased (p < 0.05) with the phenolic extraction step compared to alkaline pretreatment alone. This finding indicates that extraction of phenolics not only provides another useful material but also facilitates enzymatic saccharification.

    DOI: 10.1007/s11356-013-1547-7

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  • Seasonal changes in the performance of a catch crop for mitigating diffuse agricultural pollution

    K. Kondo, K. Inoue, T. Fujiwara, S. Yamane, D. Yasutake, M. Maeda, H. Nagare, S. Akao, K. Ohtoshi

    Water Science and Technology68 ( 4 ) 776 - 782   2013年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    An in situ technology for mitigating diffuse agricultural pollution using catch crops was developed for simultaneously preventing nitrate groundwater pollution, reducing nitrous oxide (N2O) gas emissions, and removing salts from the topsoil. Seasonal changes in the performance of a catch crop were investigated using lysimeters in a full-scale greenhouse experiment with 50 d cultivation of dent corn. Catch crop cultivation significantly reduced the leached mineral nitrogen by 89-91% in summer, 87-89% in spring, and 61-82% in winter, and it also significantly reduced the N2O emission by 68-84% in summer. The amounts of nitrogen uptake by the catch crop were remarkably higher than those of leached nitrogen and N2O emission in each season. Catch crop cultivation is a promising technology for mitigating diffuse agricultural pollution. © IWA Publishing 2013.

    DOI: 10.2166/wst.2013.258

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  • Comparison of simultaneous and separate processes: saccharification and thermophilic L-lactate fermentation of catch crop and aquatic plant biomass

    Satoshi Akao, Koutaro Maeda, Shingo Nakatani, Yoshihiko Hosoi, Hideaki Nagare, Morihiro Maeda, Taku Fujiwara

    ENVIRONMENTAL TECHNOLOGY33 ( 13 ) 1523 - 1529   2012年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:TAYLOR & FRANCIS LTD  

    Catch crop candidates (corn, guinea grass) for recovering nutrients from farm soil and aquatic plants (water caltrop, water hyacinth) were utilized to produce L-lactic acid. The efficiencies of pre-treatment methods for enzymatic saccharification and L-lactate production of two fermentation processes, thermophilic simultaneous saccharification and fermentation (SSF), as well as separate saccharification and fermentation, were compared. Conditions were set at 55 degrees C and pH 5.5 for non-sterile fermentation. Alkaline/peroxide pre-treatment proved the most effective for saccharification in pre-treated corn, guinea grass, water caltrop and water hyacinth with glucose yields of 0.23, 0.20, 0.11 and 0.14 g/g-dry native biomass (24-hour incubation period), respectively. Examination of the two types of thermophilic L-lactate fermentation employed following alkaline/peroxide pre-treatment and saccharification demonstrated that the L-lactate yield obtained using SSF (0.15 g/g in the case of corn) was lower than that obtained using separate saccharification and fermentation (0.28 g/g in the case of corn). The lower yield obtained from SSF is likely to have resulted from the saccharification conditions used in the present study, as the possibility of cellulase deactivation during SSF by thermophilic L-lactate producing bacteria existed. A cellulase that retains high activity levels under non-sterile conditions and a L-lactate producer without cellulose hydrolysis activity would be required in order for SSF to serve as an effective method of L-lactate production.

    DOI: 10.1080/09593330.2012.669412

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  • クリーニングクロップ導入によるナス施設栽培休閑期における栄養塩溶脱負荷の削減

    前田守弘, 仲宗根安弘, 岡本啓史, 浅野裕一, 藤原 拓, 永禮英明, 赤尾聡史

    土木学会論文集G68 ( 7 ) III_103-III_111   2012年

  • Nutrient recovery from biomass cultivated as catch crop for removing accumulated fertilizer in farm soil 査読

    H. Nagare, T. Fujiwara, T. Inoue, S. Akao, K. Inoue, M. Maeda, S. Yamane, M. Takaoka, K. Oshita, X. Sun

    WATER SCIENCE AND TECHNOLOGY66 ( 5 ) 1110 - 1116   2012年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:IWA PUBLISHING  

    As a result of long-term continuous use of fertilizers in farm land, a large amount of nutrients accumulate in the soil, increasing the risk of eutrophication or nitrate pollution of groundwater. For rehabilitating the farm soil and recovering nutrients such as nitrogen, phosphorus and potassium, a new system has been developed by our research group. This paper discusses the methodology of extracting nutrients from biomass in order to recover phosphorus and other nutrients in crystal form. Around 80% or higher extraction rates were achieved for phosphorus and potassium by soaking the powdered tissue in distilled water or 1% NaOH solution for 24 h. The extracted phosphorus and potassium act as a potential resource for recycled fertilizer or other industrial materials.

    DOI: 10.2166/wst.2012.291

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  • 笠岡湾干拓地における水質汚濁の現状と 安定同位体比を用いた汚濁機構解析 査読

    前田守弘, 浅野裕一, 兵藤不二夫, 中島泰弘, 藤原拓, 永禮英明, 赤尾聡史

    土木学会論文集G(環境)67 ( 7 ) III_213 - III_222   2011年11月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  • Behavior of inorganic elements during sludge ozonation and their effects on sludge solubilization

    Pengzhe Sui, Fumitake Nishimura, Hideaki Nagare, Taira Hidaka, Yuko Nakagawa, Hiroshi Tsuno

    WATER RESEARCH45 ( 5 ) 2029 - 2037   2011年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD  

    The behavior of inorganic elements (including phosphorus, nitrogen, and metals) during sludge zonation was investigated using batch tests and the effects of metals on sludge solubilization were elucidated. A decrease of similar to 50% in the ratio of sludge solubilization was found to relate to a high iron content 80-120 mgFe/gSS than that of 4.7-7.4 mgFe/gSS. During sludge zonation, the pH decreased from 7 to 5, which resulted in the dissolution of chemically precipitated metals and phosphorus. Based on experimental results and thermodynamic calculation, phosphate precipitated by iron and aluminum was more difficult to release while that by calcium released with decrease in pH. The release of barium, manganese, and chrome did not exceed 10% and was much lower than COD solubilization; however, that of nickel, copper, and zinc was similar to COD solubilization. The ratio of nitrogen solubilization was 1.2 times higher than that of COD solubilization (R(2) = 0.85). Of the total nitrogen solubilized, 80% was organic nitrogen. Because of their high accumulation potential and negative effect on sludge solubilization, high levels of iron and aluminum in both sewage and sludge should be considered carefully for the application of the advanced sewage treatment process with sludge zonation and phosphorus crystallization. (C) 2010 Elsevier Ltd. All rights reserved.

    DOI: 10.1016/j.watres.2010.12.011

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  • Analyzing evapotranspiration components and crop coefficients for catch crop field with small area at different plant densities in a greenhouse

    Daisuke Yasutake, Chiyo Kimura, Keisuke Kondo, Kenta Inoue, Makito Mori, Shinzo Yamane, Morihiro Maeda, Hideaki Nagare, Taku Fujiwara

    Environmental Control in Biology49 ( 4 ) 217 - 225   2011年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    We cultivated dent corn as a catch crop for controlling soil salt conditions in field plots at different densities, namely, 7.3 (low), 59.7 (normal) and 119.5 (high) plants m -2 in a greenhouse, where environmental elements and plant growth were measured for analyses of evapotranspiration components relating to the catch crop effects. Using the Penman-Monteith model with specific parameters incorporated for the crop and greenhouse, leaf transpiration and soil evaporation were estimated. Further crop coefficients were analyzed by dividing actual evapotranspiration by a reference evapotranspiration determined from meteorological data. Leaf area index for the normal and high density treatments reached 14 and 22, respectively, which were extremely high values compared to those for various other crops. Transpiration and its ratio to evapotranspiration increased with plant growth and density. Crop coefficients also increased with leaf area index and transpiration, and the coefficients for the normal and high density treatments reached high values of 1.5-2 and 2-3, respectively. These findings reveal characteristic features of plant growth and water dynamics in a catch crop field. The results of this study will contribute to the optimization of catch crop cultivation and to elucidate the crop's effects on soil salt conditions in greenhouses.

    DOI: 10.2525/ecb.49.217

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  • 回収・再資源化を目的としたバイオマスからの元素抽出

    永禮英明, 藤原拓, 赤尾聡史, 前田守弘, 山根信三

    土木学会論文集G67 ( 7 ) III_461-III_466   2011年

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  • ソフトバイオマスを原料とした酵素糖化における各種前処理の糖化効率比較

    前田光太郎, 赤尾聡史, 細井由彦, 永禮英明, 前田守弘, 藤原拓

    土木学会論文集G67 ( 7 ) III_433-III_440   2011年

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  • 陸域-湖内流動-湖内生態系を結合した琵琶湖流域水物質循環モデルの構築とその検証

    佐藤祐一, 小松英司, 永禮英明, 上原浩, 湯浅岳史, 大久保卓也, 岡本高弘, 金再奎

    水環境学会誌34 ( 9 ) 125 - 141   2011年

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  • トウモロコシからのリン抽出方法の検討

    永禮英明, 井上 司, 藤原 拓, 赤尾聡史, 前田守弘, 山根信三

    環境工学論文集47   459 - 464   2010年

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  • クリーニングクロップ栽培と湛水の組み合わせによるハウス土壌集積塩類の除去特性

    井上賢大, 近藤圭介, 藤原 拓, 前田守弘, 高岡昌輝, 大年邦雄, 山根信三, 永禮 英明, 赤尾聡史

    環境工学論文集47   273 - 280   2010年

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  • Removal of Humic Substances by Repeated Mixing with PACl

    Nagare, H, Aso, T, Yoshida, S, Ebie, K

    Water Practice and Technology4 ( 2 )   2009年

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  • オゾンによる汚泥減容化とリン回収を導入した高度下水処理プロセスでのリン回収方法の検討

    永禮英明, 津野 洋, W. Saktaywin, 早山 恒成

    環境工学論文集46   469 - 475   2009年

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  • Influence of the Surrounding Water Environment on Mire Vegetation

    Tachibana, H, Narumi, K, Kuchimachi, S, Saito, M, Tatsumi, K, Nagare, H

    Journal of Water and Environment Technology7 ( 2 ) 103 - 108   2009年

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  • Sludge ozonation and its application to a new advanced wastewater treatment process with sludge disintegration

    Hideaki Nagare, Hiroshi Tsuno, Wilasinee Saktaywin, Tsunenari Soyama

    OZONE-SCIENCE & ENGINEERING30 ( 2 ) 136 - 144   2008年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:TAYLOR & FRANCIS INC  

    The applicability of sludge ozonation on wastewater treatment processes was investigated to reduce the amount of excess sludge without losing phosphorus removal efficiency. Solubilization degree per ozone consumption for general sludge was in the range from 2.4 to 5.8 gSS/O-3 and from 4.1 to 7.7 gCOD/gO(3). Around 80 to 90% of solubilized organics was biodegradable at a solubilization degree of 0.3. Based on the experimental results, a lab-scale plant with sludge ozonation and phosphorus crystallization was constructed to investigate the treatment performance. Amount of excess sludge was reduced by 93% with almost complete removal of soluble BOD and phosphorus removal efficiency of more than 80%. The percentage of the effluent CODCr discharge increased from 10% to 14-17% after installing ozonation and crystallization because of the formation of non-biodegradable organic substances in ozonation process. Energy consumption of the innovative advanced process is comparable or can be even smaller than that of the conventional anaerobic/oxic (A/O) process in spite of the installation of ozonation and crystallization.

    DOI: 10.1080/01919510701861292

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  • Advanced sewage treatment with ozone under excess sludge reduction, disinfection and removal of EDCs

    Hiroshi Tsuno, Kiyomi Arakawa, Yasuhiro Kato, Hideaki Nagare

    OZONE-SCIENCE & ENGINEERING30 ( 3 ) 238 - 245   2008年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:TAYLOR & FRANCIS INC  

    A new advanced treatment system, which consists of biological nutrient removal process combined with reduction of excess sludge by ozonation and phosphorus recovery by crystallization and polishing-up ozonation process, was developed based on the fundamental studies and demonstrated by the demonstration plant set in AICHI EXPO 2005. Reduction of withdrawn excess sludge by 90% and phosphorus recovery by 70% were accomplished without any adverse effects on biological nutrient removal. The concentrations of SS, BOD, T-P and T-N in the effluent were less than 1.0, 3.0, 0.5 and 10 mg/L, respectively. EDCs were reduced to almost undetectable level and 2-log disinfection of Bacillus subtilis was established. The energy amount required for the operation was saved by 40% when compared with a conventional system to get the same level of water quality.

    DOI: 10.1080/01919510802070710

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  • 瀬戸内海におけるPCBの組成特性と起源推定に関する研究

    津野 洋, 新海貴史, 中野 武, 永禮英明

    水環境学会誌30 ( 8 ) 457 - 462   2007年

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  • POPsの二枚貝への濃縮特性に関する研究

    津野洋, 中野武, 永禮英明, 松村千里, 鶴川正寛, 是枝卓成, 高部祐剛

    土木学会論文集G63 ( 3 ) 179 - 185   2007年

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  • 瀬戸内海におけるPCBの分布とムラサキイガイへの濃縮特性に関する研究

    津野 洋, 新海貴史, 中野 武, 永禮英明, 松村千里, 是枝卓成

    土木学会論文集G63 ( 2 ) 149 - 158   2007年

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  • 汚泥削減・リン回収型生物学的下水高度処理プロセスの開発

    津野 洋, 永禮英明, W. Saktaywin, 早山恒成

    下水道協会誌論文集44   151 - 163   2007年

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  • 資源回収型の都市廃水・廃棄物処理システム技術の開発

    津野 洋, 永禮英明, 日高 平

    計測と制御45 ( 10 ) 851 - 856   2006年

  • Operation of a new sewage treatment process with technologies of excess sludge reduction and phosphorus recovery

    W. Saktaywin, H. Tsuno, H. Nagare, T. Soyarna

    WATER SCIENCE AND TECHNOLOGY53 ( 12 ) 217 - 227   2006年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:I W A PUBLISHING  

    This paper shows the potential application of a new sewage treatment process with technologies of excess sludge reduction and phosphorus recovery. The process incorporated ozonation for excess sludge reduction and crystallisation process for phosphorus recovery to a conventional anaerobic/oxic (A/O) phosphorus removal process. A lab-scale continuous operation experiment was conducted with the ratio of sludge flow rate to ozonation tank of 1.1% of sewage inflow under 30 to 40 mgO(3)/gSS of ozone consumption and with sludge wasting ratio of 0.34% (one-fifth of a conventional NO process). Throughout the operational experiment, a 60% reduction of excess sludge production was achieved in the new process. A biomass concentration of 2,300 mg/L was maintained, and the accumulation of inactive biomass was not observed. The new process was estimated to give a phosphorus recovery degree of more than 70% as an advantage of excess sludge reduction. The slight increase in effluent COD was observed, but the process performance was maintained at a satisfactory level. These facts demonstrate an effectiveness of the new process for excess sludge reduction as well as for phosphorus recovery.

    DOI: 10.2166/wst.2006.424

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  • Advanced sewage treatment process with excess sludge reduction and phosphorus recovery (共著)

    Saktaywin, W, Tsuno, H, Nagare, H, Soyama, T, Weerapakkaroon, J

    Water Research39 ( 5 ) 902 - 910   2005年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.watres.2004.11.035

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  • 余剰汚泥発生抑制・リン回収型生物学的栄養塩除去法による下水からのリンの回収

    津野 洋, 永禮英明

    再生と利用28 ( 110 ) 31 - 34   2005年

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  • 森林河川水質と集水域内地質・植生との関係の評価

    永礼英明, 藤井滋穂, 宗宮 功, 芹澤佐和子

    環境工学論文集40   501 - 506   2003年

  • 硝化反応のBODに及ぼす影響の実験による評価検討

    藤井滋穂, 松澤正貴, 永禮英明, 清水芳久

    環境工学論文集40   531 - 540   2003年

  • 琵琶湖における窒素の水中内存在量と循環過程

    永礼英明, 藤井滋穂, 宗宮 功

    水環境学会誌26   663 - 669   2003年

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  • 琵琶湖の水中内栄養塩存在量の推定

    永礼英明, 宗宮 功, 藤井滋穂

    水環境学会誌25   599 - 604   2002年

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  • Phosphorus mass-quantity change in Lake Biwa

    H Nagare, Somiya, I, S Fujii, M Morita

    WATER SUPPLY AND WATER QUALITY1 ( 2 ) 49 - 56   2001年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:I W A PUBLISHING  

    To understand the eutrophication phenomena in Lake Biwa, Japan, a research project for the water quality formation processes was executed. This paper presents phosphorus mass changes in water body in Lake Biwa from April 1995 to January 2000 and discusses the main factors of the change, Phosphorus mass ranged from 190 to 350 t, with an average of 260 t. DP mass in 1995, '97 and '98 showed seasonal change patterns, while non-periodical phenomena seemed to control the PP mass. Phosphorus mass was increased about 15 t in epilimnion from April to July while nitrogen showed a 50 t decrease. This disagreement suggests that some processes selectively accumulated phosphorus in epilimnion during this period. However, such an increase in phosphorus was not observed in 1996 and '99. Air temperature was lower and much snowfall was recorded in 1996 and '99, suggesting that coldness in winter season weakened the phosphorus accumulation process to depress the mass in epilimnion in summertime. Water temperature increase seemed to be delayed in proportion to total snowfall, but thermocline was formed independently of coldness. Hence, the idea was abandoned that the delay of thermocline formation encouraged the sedimentation process, and biological activities were considered to be the main factor controlling phosphorus mass in the epilimnion in Lake Biwa.

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  • Effects of Cold Winter on Seasonal Water Quality Change in Lake Biwa

    Nagare, H, Somiya, I, Fujii, S, Morita, M

    Advances in Asian Environmental Engineering1 ( 1 ) 47 - 53   2001年

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  • Water quality characteristics of forest rivers around Lake Biwa

    S Fujii, Somiya, I, H Nagare, S Serizawa

    WATER SCIENCE AND TECHNOLOGY43 ( 5 ) 183 - 192   2001年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:I W A PUBLISHING  

    Forest river surveys were carried out at upper streams of several rivers in the Lake Biwa watershed to understand the water quality characteristics of the rivers, and to find out their relationships with forest features such as geographical. geological and vegetational data. The results showed: (1) Forests have some purification functions for nitrogen and organic matter. but become sources for most of ionic species. (2) Main mineral species in forest rivers are Ca2+, Mg2+ and Na+, HCO3-, CO32-, Cl-, SO42- and SiO2. (3) Loading from forests was 0.4-7 kg/km(2)/d for TN and 0.01-0.3 kg/km(2)/d for TP. (4) River quality reflects the properties of each forest, and is unique to the place, especially in ionic species such as Ca2+ and Cl-. (5) A cluster analysis successfully categorized ionic components into several groups.

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  • 大型水生植物の葉と付着生物による河川内水質変換

    永礼英明, 吉澤 香, 橘 治国

    環境工学研究論文集33   349 - 354   1996年

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書籍等出版物

  • 『中国の環境政策』 第9章 環境政策の汚染物質排出量削減効果

    京都大学学術出版会  2008年  ( ISBN:9784876987382

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MISC

  • Phosphorus recovery from aquatic macrophytes

    Nagare, H, Watanabe, R, Fujiwara, T, Akao, S, Maeda, M

    Doboku Gakkai Ronbunshuu G72 ( 8 ) III_249-III_254   2016年

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  • Phoshprus removal as Ca-P precipitate from swine wastewater and equilibrium calculation

    Nagare, H

    Doboku Gakkai Ronbunshuu G71 ( 7 ) III 323-III 328   2015年

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  • Evaluation of Greenhouse Gas Emission, Nitrogen Load and Break-Even Point of Introducing Lactate Fermentation and Catch Crop System

    Masuda, T, Matsuoka, M, Yamada, M, Hase, R, Akao, S, Nagare, H, Fujiwara, T

    Doboku Gakkai Ronbunshuu G70 ( 7 ) III_483-III_491   2014年

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  • Reduced Leaching Losses of Nutrients by using a Catch Crop during a Fallow Period following Eggplant Production in a Greenhouse

    Maeda, M, Nakasone, Y, Okamoto, T, Asano, Y, Fujiwara, T, Nagare, H, Akao, S

    Doboku Gakkai Ronbunshuu G68 ( 7 ) III_103-III_111   2012年

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  • Nutrients extraction from Biomass for Recovery and Recycle

    Nagare, H, Fujiwara, T, Akao, S, Maeda, M, Yamane, S

    Doboku Gakkai Ronbunshuu G67 ( 7 ) III_461-III_466   2011年

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  • Constructing and Validating Lake Biwa Basin Simulation Model with Integrating Three Components of Land, Lake Flow and Lake Ecosystem

    Sato, Y, Komatsu, E, Nagare, H, Uehara, H, Yuasa, T, Okubo, T, Okamoto, T, Kim, J

    Journal of Japan Society on Water Environment34 ( 9 ) 125 - 141   2011年

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  • Comparative Evaluation of Different Pretreatment Methods for Enzymatic Saccharification of Lignocellulose

    Maeda, K, Akao, S, Hosoi, Y, Nagare, H, Maeda, M, Fujiwara, T

    Doboku Gakkai Ronbunshuu G67 ( 7 ) III_433-III_440   2011年

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  • Phosphorus Extraction from Corn for Recovery and Recycle

    Nagare, H, Inoue, T, Fujiwara, T, Akao, S, Maeda, M, Yamane, S

    Environmental Engineering Research47   459 - 464   2010年

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  • Removal of salts accumulated in the topsoil of greenhouses by using Cleamng crop cultivation coupled with flooding activity

    Inoue, K, Kondo, K, Fujiwara, T, Maeda, M, Takaoka, M, Ohtoshi, K, Yamane, S, Nagare, H, Akao, S

    Environmental Engineering Research47   273 - 280   2010年

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  • Phosphorus recovery as hydroxyapatite (HAP) in the wastewater treatment process with sludge disintegration by ozone

    Nagare, H, Tsuno, H, Saktaywin, W, Soyama, T

    Environmental Engineering Research46   469 - 475   2009年

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  • Composition Properties and Origin Presumption of PCBs in Seto Inland Sea

    Tsuno, H, Shinkai, T, Nakano, T, Nagare, H

    Journal of Japan Society on Water Environment30 ( 8 ) 457 - 462   2007年

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  • PCBs Distribution and Bioconcentration to Mussel in Seto Inland Sea

    Tsuno, H, Shinkai, T, Nakano, T, Nagare, H, Matsumura, C, Koreeda, T

    Doboku Gakkai Ronbunshuu G63 ( 2 ) 149 - 158   2007年

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  • Accumulation Characteristics of POPs from Water to Bivalves

    Tsuno, H, Nakano, T, Nagare, H, Matsumura, C, Tsurukawa, M, Koreeda, T, Takabe, Y

    Doboku Gakkai Ronbunshuu G63 ( 3 ) 179 - 185   2007年

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  • Development of a New Biological Phosphorus Removal Process with Technologies of Excess Sludge Reduction and Phosphorus Recovery

    Tsuno, H, Nagare, H, Saktaywin, W, Soyama, T

    Journal of Japan Sewage Works Association. Research journal44   151 - 163   2007年

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  • Advanced sewage treatment process with excess sludge reduction and phosphorus recovery

    W Saktaywin, H Tsuno, H Nagare, T Soyama, J Weerapakkaroon

    WATER RESEARCH39 ( 5 ) 902 - 910   2005年3月

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    記述言語:英語   出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD  

    An advanced sewage treatment process has been developed, in which excess sludge reduction by ozonation and phosphorus recovery by crystallization process are incorporated to a conventional anaerobic/oxic (A/O) phosphorus removal process. The mathematical model was developed to describe the mass balance principal at a steady state of this process. Sludge ozonation experiments were carried out to investigate solubilization characteristics of sludge and change in microbial activity by using sludge cultured with feed of synthetic sewage under A/O process. Phosphorus was solubilized by ozonation as well as organics, and acid-hydrolyzable phosphorus (AHP) was the most part of solubilized phosphorus for phosphorus accumulating organisms (PAOs) containing sludge. At solubilization of 30%, around 70% of sludge was inactivated by ozonation. The results based on these studies indicated that the proposed process configuration has potential to reduce the excess sludge production as well as to recover phosphorus in usable forms. The system performance results show that this system is practical, in which 30% of solubilization degree was achieved by ozonation. In this study, 30% of solubilization was achieved at 30 mg O-3/gSS of ozone consumption. (c) 2005 Elsevier Ltd. All rights reserved.

    DOI: 10.1016/j.watres.2004.11.035

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  • Evaluation of Nitrification Effects on BOD by Batch Experiments

    Fujii, S, Matsuzawa, M, Nagare, H, Shimizu, Y

    Environmental Engineering Research40   531 - 540   2003年

  • Nitrogen Mass Change and Cycle in Lake Biwa

    Nagare, H, Fujii, S, Somiya, I

    Journal of Japan Society on Water Environment26   663 - 669   2003年

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  • Relationship between Water Quality in Forest-Rivers and Geographical and Botanical Properties of Watershed

    Nagare, H, Fujii, S, Somiya, I, Serizawa, S

    Environmental Engineering Research40   501 - 506   2003年

  • Nutrient Mass Estimation in Lake Biwa

    Nagare, H, Somiya, I, Fujii, S

    Journal of Japan Society on Water Environment25   599 - 604   2002年

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  • Changes in water quality due to leaves of aquatic macrophyte and their periphyton

    Nagare, H, Yoshizawa, K, Tachibana, H

    Proc. of Environmental Engineering Research33   349 - 354   1996年

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講演・口頭発表等

  • Wastewater treatment process with astaxanthin production by microalgae aiming at spontaneous phosphorus recycling

    IWA 2nd Resource Recovery Conference  2017年 

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  • 流域社会と湖内生態系におけるリンフローの把握

    第20回日本水環境学会シンポジウム  2017年 

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  • Coagulation with chitosan as the pre-treatment for algae cultivation in wastewater

    2017 International Environmental Engineering Conference  2017年 

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  • イミダゾリウム系イオン液体とオゾンとの反応機構

    日本オゾン協会第 26 回年次研究講演会  2017年 

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  • Wastewater treatment process with astaxanthin production by microalgae aiming at spontaneous phosphorus recycling

    IWA 2nd Resource Recovery Conference  2017年 

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  • 琵琶湖水質の将来予測シミュレーションについて⑵ ~湖沼生態系モデルの成果と今後の課題~

    第51回日本水環境学会年会  2017年 

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  • Coagulation with chitosan as the pre-treatment for algae cultivation in wastewater

    2017 International Environmental Engineering Conference  2017年 

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  • 琵琶湖水質の将来予測シミュレーションについて⑴ ~第7 期湖沼水質保全計画の結果から~

    第51回日本水環境学会年会  2017年 

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  • Reaction mechanisms of an imidazorium ionic liquid and ozone

    2017年 

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  • Ozonation of an imidazolium ionic liquid

    2016年 

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  • イミダゾリウム系イオン液体のオゾン分解

    第25回日本オゾン協会年次研究講演会  2016年 

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  • Astaxanthin production from wastewater by Haematococcus pluvialis

    1st IWA Resource Recovery Conference  2015年 

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  • 流域におけるリン資源管理に向けて

    北海道大学第23回衛生工学シンポジウム  2015年 

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  • 滋賀県におけるリンのフロー

    第37回 京都大学環境衛生工学研究会シンポジウム  2015年 

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  • 塩基性条件下におけるイオン液体1-butyl-3-methylimidazoulium chlorideのオゾン処理副生成物の分析

    第49回日本水環境学会年会  2015年 

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  • 藻類培養のためのキトサンによる下水凝集処理

    第49回日本水環境学会年会  2015年 

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  • Coagulation of wastewater for microalgae cultivation

    2015年 

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  • Astaxanthin production from wastewater by Haematococcus pluvialis

    1st IWA Resource Recovery Conference  2015年 

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  • Non-sterile simultaneous saccharification and fermentation of corn biomass to L-lactic acid without external nutrient addition

    9th IWA International Symposium on Waste Management Problems in Agro-Industries  2014年 

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  • Ozonation of ionic liquid 1-butyl-3-methylimidazolium chloride under basic condition

    248th ACS National Meeting  2014年 

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  • Degradation of an ionic liquid, 1-butyl-3-methylimidazolium chloride, by ozonation

    IWA World Water Congress & Exhibition  2014年 

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  • Nitrous oxide emissions during biological soil disinfestation with different organic matters and plastic mulch films in laboratory-scale tests

    9th IWA International Symposium on Waste Management Problems in Agro-Industries  2014年 

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  • Development of a New Wastewater Treatment Process for Resource Recovery as Carotenoid

    9th IWA International Symposium on Waste Management Problems in Agro-Industries  2014年 

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  • Recovery of Phosphorus and Potassium from Corn Biomass as a Magnesium Salt

    9th IWA International Symposium on Waste Management Problems in Agro-Industries  2014年 

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  • バイオ炭および緑肥の土壌混和が水分保持,温室効果ガス発生に及ぼす影響

    第50回環境工学研究フォーラム  2013年 

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  • 温室内の異なる栽植密度条件下におけるクリーニング作物の塩類吸収特性

    日本農業気象学会2013年全国大会  2013年 

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  • Utilization of nutrients extracted from plant biomass in thermophilic L-lactic acid fermentation

    13th World Congress on Anaerobic Digestion  2013年 

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  • Phosphorus recovery from wastewater and farmland and its potential effect in Japan

    The 2013 International Conference on the Challenges in Environmental Science and Engineering  2013年 

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  • Characteristics of Salt Absorption by Roots of Corn Catch Crop at Different Densities in a Greenhouse

    3rd BioHydrology Conference  2013年 

     詳細を見る

  • Characteristics of Salt Absorption by Roots of Corn Catch Crop at Different Densities in a Greenhouse

    3rd BioHydrology Conference  2013年 

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  • 植物系バイオマスからのリン,カリウム同時回収の検討

    第50回環境工学研究フォーラム  2013年 

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  • 植物系バイオマスの糖と栄養素を利用した高温L-乳酸発酵

    第50回環境工学研究フォーラム  2013年 

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  • クリーニングクロップとしてのレモングラスの適用性~ポット試験による評価~

    第16回日本水環境学会シンポジウム  2013年 

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  • 釧路湿原温根内地域の地下水水質の分布特性

    第16回日本水環境学会シンポジウム  2013年 

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  • 高知県の施設園芸を対象としたクリーニングクロップによる潜在的窒素回収量の推算

    地理情報システム学会 第22回研究発表大会  2013年 

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  • Phosphorus recovery from wastewater and farmland and its potential effect in Japan

    The 2013 International Conference on the “Challenges in Environmental Science and Engineering”  2013年 

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  • Utilization of nutrients extracted from plant biomass in thermophilic L-lactic acid fermentation

    13th World Congress on Anaerobic Digestion  2013年 

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  • 農業系面源汚染抑制と資源回収を同時に実現する植物浄化技術の開発

    第35回 京都大学環境衛生工学研究会シンポジウム  2013年 

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  • 高知県の施設園芸を対象とした資源回収作物による窒素回収量の推算

    第5回四国GISシンポジウム  2012年 

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  • 施設栽培休閑期におけるN2O発生要因の室内培養実験による検討

    第49回環境工学研究フォーラム  2012年 

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  • Seasonal change in diffuse agricultural pollution control performance of catch crop

    8th IWA World Water Congress & Exhibition  2012年 

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  • Nutrient extraction from biomass derived in water quality management countermeasures

    8th IWA World Water Congress & Exhibition  2012年 

     詳細を見る

  • Seasonal change in diffuse agricultural pollution control performance of catch crop

    8th IWA World Water Congress & Exhibition  2012年 

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  • Nutrient extraction from biomass derived in water quality management countermeasures

    8th IWA World Water Congress & Exhibition  2012年 

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  • 琵琶湖における第6期湖沼水質保全計画の策定について(2)~現況再現と将来予測シミュレーションの概要~

    第46回日本水環境学会年会  2012年 

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  • 牛舎由来のアンモニアが隣接圃場におよぼす影響:笠岡湾干拓地における一事例

    日本土壌肥料学会2012年度鳥取大会  2012年 

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  • クリーニングクロップ栽培によるハウス土壌の面的浄化効果の評価

    第45回日本水環境学会年会  2011年 

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  • Extraction of Nutrients in Macrophyte for Recycling

    14th World Lake Conference  2011年 

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  • 温室内での異なる植栽密度のクリーニング作物の栽培における蒸散,蒸発および作物係数の評価

    日本農業気象学会中国四国支部大会  2011年 

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  • 琵琶湖の物質循環のシミュレーションと汚濁負荷削減効果の考察

    第45回日本水環境学会年会  2011年 

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  • Nutrient Recovery from Biomass Cultivated as Catch Crop for Removing Accumulated Fertilizer in Farm Soil

    8th IWA International Symposium on Waste Management Problems in Agro-Industries  2011年 

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  • 水生植物ヒシのカスケード利用:ポリフェノール,栄養塩,糖の回収

    第45回日本水環境学会年会  2011年 

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  • ライシメーターでの短期栽培によるクリーニングクロップの土壌浄化効果の評価

    第45回日本水環境学会年会  2011年 

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  • Nutrient Recovery from Biomass Cultivated as Catch Crop for Removing Accumulated Fertilizer in Farm Soi

    8th IWA International Symposium on Waste Management Problems in Agro-Industries  2011年 

     詳細を見る

  • Extraction of Nutrients in Macrophyte for Recycling

    14th World Lake Conference  2011年 

     詳細を見る

  • Characteristics of groundwater quality and its relationship to vegetation in Kushiro wetland

    2010年 

     詳細を見る

  • 資源回収を目的とした植物中窒素・リン抽出方法の検討

    第44回日本水環境学会年会  2010年 

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  • トウモロコシからのリン抽出方法の検討

    第47回環境工学研究フォーラム  2010年 

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  • 畜産パーラー排水の凝集処理

    第44回日本水環境学会年会  2010年 

     詳細を見る

  • 釧路湿原の地下水特性と植生への影響

    第44回日本水環境学会年会  2010年 

     詳細を見る

  • Recovery of nitrogen and phosphorus from cellulosic biomass

    2010年 

     詳細を見る

  • Phosphorus Extraction from Corn for Recovery and Recycle

    2010年 

     詳細を見る

  • Coagulation treatment of wastewater from milking parlor

    2010年 

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▼全件表示

受賞

  • 日本オゾン協会論文賞

    2009年  

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    受賞国:日本国

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  • 京都大学環境衛生工学研究会 第1回優秀プロジェクト賞

    2004年  

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    受賞国:日本国

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