Faculty Profiles - FUJIWARA Takeshi

MISC - FUJIWARA Takeshi

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An estimation of biomass emission in Okayama University

Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 26 19 2015

Publisher：Japan Society of Material Cycles and Waste Management

As a first step of research on evaluating effectiveness of distributed biomass recycling system of business facility or regional unit, in this study, we estimated the quantity of biomass waste which is generated from green area, agricultural field, and cafeterias on a big campus of Okayama University. Each quantity of pruned fruits branch, cut grass, rice straw, and animal waste was estimated by using the calculation method of NEDO, crop waste was estimated by using a farm report published by Faculty of Agriculture, and pruned and fallen leaves were estimated by using the allometry method which estimates amount of leaves based on trunk diameter and tree height. The amount of the kitchen waste generated from university cafeteria was figured out by hearing to university Co-op. As a result, it was found that the amount of biomass waste generated on Okayama University campus is 1,454 ton/year. If the biomass is burned or used for bio gas generation, the electricity generation will be 6,765 GJ/year.

DOI： 10.14912/jsmcwm.26.0_19

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災害廃棄物処理対策評価ルールベースシステムの開発

藤原健史, 矢野裕識

全国都市清掃研究・事例発表会講演論文集 37th 2015

東南アジアの廃棄物マネジメントの現状について

藤原健史

タクマ技報 = Takuma technical review 22 ( 2 ) 59 - 65 2014.12

ウルムチ市における家庭ごみの組成調査とリサイクル適合性評価—Characterization Test and Suitability Analysis of Household Waste for Recycling in Urumqi, the Xinjiang-Uyghur, China—京都大学環境衛生工学研究会第36回シンポジウム講演論文集

シャリパズヌン, 藤原健史

環境衛生工学研究 = Environmental & sanitary engineering research : 京都大学環境衛生工学研究会機関誌 28 ( 3 ) 151 - 154 2014.7

Study on the household waste separation, treatment, disposal system towards low carbon society : Case study of Johor Bahru, Malaysia

28 ( 3 ) 147 - 150 2014.7

東南アジアの廃棄物マネジメントの現状について

藤原健史

タクマ技法 22 ( 2 ) 1 - 7 2014

Study on optimization of gasification and reforming facility of waste biomass by using GIS

Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 25 59 2014

家計消費を考慮した家庭ごみの組成調査と排出量推計モデルの構築 : 岡山市を対象として—Household Waste Characterization Survey and Modeling of Future Waste Discards by Considering Household Expenditure : Case study of Okayama—京都大学環境衛生工学研究会第35回シンポジウム講演論文集 ; 一般講演

藤原健史, 藤川大貴

環境衛生工学研究 = Environmental & sanitary engineering research : 京都大学環境衛生工学研究会機関誌 27 ( 3 ) 99 - 102 2013.7

Study on Sustainable Solid Waste Management towards Low Carbon Society in Malaysia Iskandar Area

Fujiwara Takeshi, Siti Norbaizura

Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 24 75 2013

Publisher：Japan Society of Material Cycles and Waste Management

Iskandar Malaysia (IM) is a new economic region in Malaysia’s most southern state, Johor. The region is targeted for massive development by 2025 with a targeted rapid increase in the population to 3 million, or double the 2005 level, within the 20-year development period. IM was chosen as the study area of “Low-carbon society for Iskandar Malaysia 2025” which has an action “Sustainable Waste Management” in 12 countermeasure actions towards climate resilient urban development for Iskandar Malaysia. In this paper, we evaluated alternative solid waste management towards the building of both a sound material society and a low-carbon society. This study covers five sectors namely management of municipal solid waste, agricultural waste, industrial waste, sewage sludge, and construction and demolition waste. Our target is half reduction of landfill waste and half of GHG emitted from waste handling and treatment. Our result shows that both the target are achievable in 2025 with the reduction of 65%, 79%, 81%, 10%, 69% of waste and reduction as GHG emission as well, respectively. Targets are achievable under the condition of high participation and segregation efficiency in 2025.

DOI： 10.14912/jsmcwm.24.0_75

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Study on waste characterization survey of household waste and development of prediction model of waste discards

Fujiwara Takeshi, Fujikawa Daiki

Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 24 13 2013

Publisher：Japan Society of Material Cycles and Waste Management

In the recent year, there is the trend of municipal solid waste (MSW) decreasing in many local governments. Some of the reasons of this trend are due to changes in socioeconomic factor such as decreasing in population number and economic stagnation and positive impact factor of 3R – reduce, reuse, recycle; promotion. However, it is difficult to explain the reason of MSW decreasing through decoupling the effects from each factor. It is required for local government to make planning of treatment facility from long time prospect of waste discards. In this study, we conduct waste characterization test to analyze the relationship between consumption and waste discards for targeted Okayama City, and develop a model for projecting future waste discards based on a scenario of economic stagnation or recycling promotion.

DOI： 10.14912/jsmcwm.24.0_13

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開発バイオマスガス化・改質プロセスの地域導入効果の解析

鈴木和将, 藤原健史, 川本克也

全国都市清掃研究・事例発表会講演論文集 35th 2013

インドネシア・バンドン市における廃棄物処理システムの評価—Evaluation of Solid Waste Treatment System of Bandung city, Indonesia—京都大学環境衛生工学研究会第34回シンポジウム講演論文集

川口晃二, 大林裕明, 藤原健史

環境衛生工学研究 = Environmental & sanitary engineering research : 京都大学環境衛生工学研究会機関誌 26 ( 3 ) 132 - 135 2012.7

視体積交差法を用いたがれき堆積廃棄物の計測手法の開発—Development of Measurement Method for Pileup Rubble Waste by Using Silhouette Volume Intersection—第24回環境システム計測制御学会(EICA)研究発表会 ; 震災対応

藤原健史

EICA : journal of EICA : 環境システム計測制御学会誌 / 学会誌「EICA」編集委員会編 17 ( 2・3 ) 184 - 190 2012

Future Projection of Domestic Solid Waste Generation in Guam by Using Input-Output Table - Analysis on effect of changes in population and tourism -

FUJIWARA Takeshi, ITO Eri

Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 68 ( 5 ) I_41 - I_48 2012

Language：Japanese Publisher：Japan Society of Civil Engineers

Pacific island country without having manufacturing industry emphasizies on tourism industry which utilizes the natural resources. Island country imports lots of foods and commodity goods from oversea countries to supply for tourists during their stays, moreover, changes in resident's lifestyle from 'thrift type' to 'waste type' increases the amount import even more. The goods consumed by resident or tourist, has been disposed and stored in the island, and at present, the stored waste causes environmental pollution and landscape deterioration. Since small island country has difficulty in constructing final landfill, it is important to prevent waste generation due to construct a sound material-cycle society with a view of collaboration with foreign countries. For this purpose, by considering development in island economy and change in lifestyle of island people, it is necessary to identify the quality and quantity of solid waste which is generated at the present and future. In this research, Guam, a territory of U.S., is targeted. First of all, input-output table is developed to grasp the current economic situation of the island, and secondly, scenarios which are composed of changes in population of residents, future number of tourists, and expenditure to tourism industry are created. Then, the amount of discharged future household waste is estimated by considering economic ripple effect under the scenario.

DOI： 10.2208/jscejer.68.i_41

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産業連関表を用いたグアムにおける家庭ごみ排出量の将来推計 : 人口増加及び観光業の影響分析—Future Projection of Domestic Solid Waste Generation in Guam by Using Input-Output Table : Analysis on effect of changes in population and tourism

藤原健史, 伊藤依理

地球環境研究論文集 : 地球環境シンポジウム / 土木学会地球環境委員会編 20 41 - 48 2012