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Affiliation |
Engineering educational research section Department of Civil and Environmental Engineerring Program |
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Title |
Professor |
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Laboratory Phone number |
+81 985-58-7340 |
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Laboratory Fax number |
+81 985-58-7344 |
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Contact information |
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External Link |
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DOTE Yutaka
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Degree 【 display / non-display 】
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工学博士 ( 1989.3 北海道大学 )
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工学修士 ( 1986.3 北海道大学 )
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工学学士 ( 1984.3 北海道大学 )
Research Areas 【 display / non-display 】
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Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Environmental systems for civil engineering
Education 【 display / non-display 】
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Hokkaido University Graduate School, Division of Engineering
- 1989.3
Country：Japan
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Hokkaido University Faculty of Engineering
- 1984.3
Country：Japan
Campus Career 【 display / non-display 】
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University of Miyazaki Engineering educational research section Department of Engineering Department of Civil and Environmental Engineerring Program Professor
2021.04 - Now
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University of Miyazaki Faculty of Engineering Department of Civil and Environmental Engineering Professor
2012.04 - 2021.03
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University of Miyazaki Faculty of Engineering Civil and Environmental Engineering Environmental control course Professor
2012.01 - 2012.03
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University of Miyazaki Faculty of Engineering Civil and Environmental Engineering Environmental control course Associate Professor
2007.04 - 2011.12
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University of Miyazaki Faculty of Engineering Civil and Environmental Engineering Environmental control course Associate Professor (as old post name)
1994.06 - 2007.03
External Career 【 display / non-display 】
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Techinical University of Denmark 客員研究員
2003.8 - 2004.6
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通商産業省工業技術院資源環境技術総合研究所 主任研究員
1993.4 - 1994.5
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通商産業省工業技術院資源環境技術総合研究所 研究員
1989.4 - 1993.3
Professional Memberships 【 display / non-display 】
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土木学会
1985.4
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廃棄物資源循環学会
2008.12
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延岡市廃棄物処理施設整備に関する検討委員会
2023.12 - 2024.3
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日向東臼杵広域連合次期広域最終処分場建設検討委員会
2022.12 - 2024.3
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第33回廃棄物資源循環学会研究発表会実行委員会
2022.2 - 2022.11
Papers 【 display / non-display 】
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Influence of Non-rainfall Period and Surrounding Particle Size on Leaching Amount of Easily Soluble Substances from Cement solidified Fly Ash
Yutaka DOTE, Tomoo SEKITO
52 11 - 16 2023.10
Authorship：Lead author Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Environmental Safety of Solar Panel Componets Used as Fine Aggregate for Concrete
Yutaka DOTE, Hideki HARADA, Tomoo SEKITO
52 23 - 29 2023.10
Authorship：Lead author Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Effect of External Concentration on Leaching Amount of Easily Soluble Substances in Cement Solidified Fly Ashh
52 17 - 22 2023.10
Authorship：Lead author Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Influence of Specific Surface Area of Cement Solidified Fly Ash on Leaching Amount of Easily Soluble Substances
52 1 - 10 2023.10
Authorship：Lead author Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Environmental Safety Evaluation of Silicon Solar Panel Cell Waste Use as Fine Aggregate Reviewed
Dote Yutaka, Harada Hideki, Sekito Tomoo
Journal of the Japan Society of Material Cycles and Waste Management 34 ( 0 ) 23 - 29 2023.6
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Material Cycles and Waste Management
To evaluate the environmental safety of waste silicon solar panels as fine aggregate, JIS A 5011-1 leaching and content tests were conducted for cover glass (CG), wet specific gravity separation residue (WSGSR), which were separated from the waste solar panels, their mixture (waste panel aggregate, WPA), a simulation sample made from WPA and cement, and a cement paste sample made from only cement. Although Pb content in WSGSR was 1.5 times higher than the Environmentally Sound Quality Standards (ESQS) value for Content, Pb content in WPA met the ESQS for Content because of the dilution effect of mixing CG and WSGSR. Although Sb leaching concentration from CG was 1.1 times higher than the guideline value of the Environmental Quality Standards for Groundwater Pollution, Sb leaching concentration from WPA met the guideline. Because WPA met both ESQS for Content and Leachate, the simulation samples also met both standards. Therefore, based on the evaluation of both aggregate and simulation samples, it was concluded that the silicon solar panel waste used in this research could be used as fine aggregate in a manner that is environmentally safe.
Books 【 display / non-display 】
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リン資源の回収と有効利用
監修者：大竹久夫 共著者：大竹久夫、土手 裕（ Role： Joint author , 207-213頁）
サイエンス＆テクノロジー 2009.11
Language：Japanese Book type：Scholarly book
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環境工学公式・モデル・数値集
編集者：福島武彦共著者：西村修、土手 裕 他（ Role： Joint author , 210-213頁）
土木学会編 2004.6
Language：Japanese Book type：Scholarly book
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インバース・マニュファクチャリング ハンドブック－ポストリサイクルの循環型ものづくり－
編集者：木村文彦共著者：厨川道雄、土手 裕、 他100名（ Role： Joint author , 367-376頁）
丸善 2004.3
Language：Japanese Book type：Scholarly book
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新エネルギー大事典
編集者：茅 陽一共著者：厨川道雄、土手 裕、 他100名（ Role： Joint author , 711-715頁）
工業調査会（東京） 2002.2
Language：Japanese Book type：Scholarly book
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廃棄物処理・再資源化技術ハンドブック
編集者：廃棄物処理・再資源化技術ハンドブック編集委員会 共著者：中山哲男、土手 裕、 他63名（ Role： Joint author , 183-195頁）
建設産業調査会(東京) 1993.11
Language：Japanese Book type：Scholarly book
MISC 【 display / non-display 】
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廃太陽光パネルを骨材としたコンクリートの環境安全性評価
土手裕
コンクリートテクノ 43 ( 2 ) 45 - 49 2024.2
Authorship：Lead author Language：Japanese Publishing type：Rapid communication, short report, research note, etc. (scientific journal)
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Merits and demerits of depopulation Invited
Yutaka Dote
34 ( 3 ) 145 - 146 2023.6
Authorship：Lead author Language：Japanese Publishing type：Rapid communication, short report, research note, etc. (scientific journal)
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養豚廃水中の窒素・リン・カリウムの同時回収 Invited
土手 裕
最新農業技術 畜産 12 159 - 164 2020.3
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：農山漁村文化協会
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鶏ふん焼却灰中のリン回収技術
土手 裕
農業および園芸 89 ( 5 ) 531 - 536 2014.4
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：養賢堂
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研究室紹介
土手 裕
産学・地域連携センター 器機分析支援部門ニュース 25 4 - 5 2012.8
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：宮崎大学
Presentations 【 display / non-display 】
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Influenct factors of variation of boron elution from coal bottom ash
Fukuda Michito, Sekito Tomoo, Dote Yutaka
Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 2023.9 Japan Society of Material Cycles and Waste Management
Event date： 2023.9.11 - 2023.9.13
Language：Japanese Presentation type：Poster presentation
Coal bottom ash (CA) generated from the bottom of coal boilers contains soluble boron and the level of the concentration often exceeds the Soil Environmental Standard value for Boron. The relationship between boiler combustion conditions and soluble ions in CA were investigated to estimate the factors that cause fluctuations of boron contained in CA. The results showed that there was no significant relationship between the soluble boron and the combustion conditions of the boiler. It was found that the soluble boron in CA has a relationship with concentrations of calcium and sulfate measured by the leaching test. It was found that the saturation index values of gypsum in CA obtained by PHREEQC software with higher soluble boron was larger than that with lower soluble boron. This result indicates that the soluble boron in CA was embedded or adsorbed in gypsum and the variation of soluble boron would be influenced by the amount of gypsum in CA.
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Development of leaching model of chloride ion from cement-solidified fly ash
Dote Yutaka, Sekito Tomoo
Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 2023.9 Japan Society of Material Cycles and Waste Management
Event date： 2023.9.11 - 2023.9.13
Language：Japanese Presentation type：Poster presentation
To develop a one-dimensional leaching model of chloride ion from cement-solidified fly ash, a calculation area was divided into surface dissolution dominant area and diffusion dominant area, and surface dissolution model and a diffusion model were applied to each area. The model parameters were determined by tank leaching tests. By comparing the degree of agreement between experimental values of each fractional leaching amounts of chloride ion and calculated values by the developed model and conventional diffusion model, the applicability of the developed mode was evaluated. The developed model could express the leaching phenomena of chloride ion from cement-solidified fly ash. The thickness of surface dissolution area was estimated to be about 1 mm, and it was considered that the surface dissolution occurred at the shallow surface of the cement-solidified fly ash. The periods where the leaching amounts by surface dissolution was dominant to that by diffusion were by the first 2 hours of the beginning of tank leaching tests. The developed model could express the leaching phenomena better than diffusion model by two days after the beginning of leaching tests.
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INFLUENCE OF SPECIFIC SURFACE RATE OF CEMENT SOLIDFIED FLY ASH ON LEACED AMAUNT OF SOLUBLE SUBUSTANCES International conference
Yutaka Dote, Tomoo Sekito
The 11th China-Japan Joint Conference on Material Recycling and Waste Management (札幌) 2022.11.17 廃棄物資源循環学会
Event date： 2022.11.17 - 2022.11.18
Language：English Presentation type：Oral presentation (general)
Venue：札幌
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Material Flow and Waste Recovery in a Community-Based Waste Management System in Batu, Indonesia International conference
Muktiningsih S.D., Sekito T., Rahmaudina S., Dote Y., Prayogo T.B.
IOP Conference Series: Earth and Environmental Science 2023 IOP Conference Series: Earth and Environmental Science
Event date： 2022.11.17 - 2022.11.18
Language：English Presentation type：Oral presentation (general)
Indonesian government has promoted to establish Community Based Waste Management (CBWM) in Indonesia to increase the resource recovery rate and to reduce the amount of landfilling waste in stead of conventional the waste management. In CBWM, recyclable materials are recovered by neighborhood communities and only the residual waste is landfilled. Although CBWM can contribute to the reduction of green house gas emission and conservation of resources, the effectiveness of CBWM on the reduction of waste is an clear due to a lack of detailed information about CBWM such as economic benefit, waste flow and its sustainability. The aims of this study are to identify the waste flow in common CBWM in Indonesia and to evaluate the effectiveness of CBWM for reduction of MSW carried to a landfill site. The TPS3R Dadaprejo Mandiri (DM-TPS) in Dadaprejo Village, Batu City, Indonesia was investigated as a case of CBWM. Waste composition was surveyed for 8 consecutive days on three separate occasions in 2021 and 2022. Each resource was weighed and measured at each step of the process to analyze waste flow. Monthly data summarizing the amount of each resource separated at DM-TPS was obtained from their records. Information about the amount of waste and resources collected by the 13 waste banks was obtained by interviewing the administrators of those waste banks. The amount of waste carried to DM-TPS during the first, second, and third surveys averaged 5.61, 6.65, and 5.40 t/day, respectively. Of the 9 categories of waste, the largest was the organic waste. Fruits and vegetables made up the largest percentage of resources followed by plastic bags. The average resource recovery rate was approximately 15.2%. However, the composition survey revealed that the potential resource recovery rate was approximately 39.5%. In order to increase of resource recovery rate, the corporation of households on simple source separation at home would be required.
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廃太陽光パネルを骨材としたコンクリートの環境安全性評価
土手 裕, 関戸知雄, 原田秀樹
第33回廃棄物資源循環学会研究発表会 (札幌) 2022.9.20 廃棄物資源循環学会
Event date： 2022.9.20 - 2022.9.22
Language：Japanese Presentation type：Poster presentation
Venue：札幌
Industrial property rights 【 display / non-display 】
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畜糞炭化物からのカリウム回収方法
阪本 亮一、山本 常平、上田 浩三、土手 裕、関戸 知雄
Applicant：宮崎大学,日立造船(株)
Application no：特願2012-219281 Date applied：2012.10.1
Announcement no：2013-252513 Date announced：2013.12.19
Patent/Registration no：5904467 Date registered：2016.3.25
Country of applicant：Domestic
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畜糞の焼却灰からの無機リン化合物を取得する方法
土手裕、関戸知雄、太田靖子
Applicant：宮崎大学
Application no：2010-247710 Date applied：2010.11.4
Announcement no：特開2012-096972 Date announced：2012.5.24
Patent/Registration no：5700774 Date registered：2015.2.27
Country of applicant：Domestic
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MEHTOD OF REMOVING NITROGEN IMPURITIES FROM WATER USING HYDROCARBON-PRODUCING MICROALGA
Application no：2009-114439 Date applied：2009.5.11
Announcement no：特開2010-262718 Date announced：2010.11.18
Patent/Registration no：5476787 Date registered：1995.12.19
Country of applicant：Foreign country
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畜糞系焼却灰からのリン含有水溶液の調製、並びにヒドロキシアパタイト及び／又はリン酸水素カルシウムとしての沈澱回収
貝掛勝也、土手裕、関戸知雄
Applicant：国立大学法人宮崎大学
Application no：特願2006-189800 Date applied：2006.6.12
Announcement no：特開2007-070217 Date announced：2007.3.22
Patent/Registration no：特許4491612 Date registered：2010.4.16
Country of applicant：Domestic
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有機性汚泥の効率的な焼却方法
横山伸也、小木知子、土手裕、美濃輪智朗、安中徳二、佐藤和明、増田隆司、中村忠、鈴木明、伊藤新治
Applicant：オルガノ株式会社
Application no：特願平06-227312 Date applied：1996.8.30
Announcement no：特開平08-168800 Date announced：1996.7.2
Patent/Registration no：2662687 Date registered：1997.6.20
Country of applicant：Domestic
Awards 【 display / non-display 】
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１９９３年度〈第２０回〉 （環境調査センター、日刊工業新聞）環境賞・優良賞
1993.3 環境調査センター、日刊工業新聞
中山 哲男、横山 伸也、小木 知子、土手 裕、美濃輪 智朗、中村 忠、鈴木 明、伊藤 新治
Award type：Award from publisher, newspaper, foundation, etc. Country：Japan
Grant-in-Aid for Scientific Research 【 display / non-display 】
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高濃度炭酸ガス、有機酸雰囲気におけるセメント固化体からの重金属溶出に関する研究
1996.03 - 1997.03
科学研究費補助金 基盤研究(C)
Authorship：Principal investigator
セメント固化した飛灰からの重金属溶出に対する炭酸ガスの影響
Available Technology 【 display / non-display 】
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最終処分場における環境負荷の削減
畜産廃棄物の有効利用技術の開発Message：無機系廃棄物、畜産廃棄物、畜産廃水の処理やリサイクル技術の開発ニーズがあれば、ぜひご連絡ください。
Committee Memberships 【 display / non-display 】
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延岡市廃棄物処理施設整備に関する検討委員会 委員長
2023.12 - 2024.3
Committee type：自治体
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日向東臼杵広域連合次期広域最終処分場建設検討委員会 委員長
2022.12
Committee type：自治体
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第33回廃棄物資源循環学会研究発表会実行委員会 委員長
2022.2 - 2022.11
Committee type：学協会
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日向東臼杵広域連合次期広域最終処分場用地選定検討委員会 委員長
2021.7 - 2023.3
Committee type：自治体
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硫黄山噴火に伴う噴出物由来沈殿物等の埋設地・埋設方法検討専門家委員会 委員
2020.12 - 2021.3
Committee type：その他
Social Activities 【 display / non-display 】
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宮崎県立西高校 出前講義 講師
Role(s)： Lecturer
宮崎県立西高等学校 2016.11.12
Audience： High school students
「養豚廃水からの窒素，リン，カリウムの回収 —地域の資源循環—」と題して、講演した。
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日南高等学校環境教育に係る講師
2015.12
循環型社会と環境
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日南高等学校環境教育に係る講師
2014.12
循環型社会と環境
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大分県産業廃棄物適正処理講習会 講師
2014.11 - 2014.12
「放射性物質を含む廃棄物とリスク」と題して講演した。
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平成２６年度驚異運免許状更新講習 講師
2014.8
平成２６年度教員免許状更新講習において講師を務めた。