2016 Fiscal Year Final Research Report

Interdisciplinary Collaborative Research on Liquid Fertilizer Utilization and Recycling Loop Construction of an Organic Waste

Research Project

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Project/Area Number	26310311
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Partial Multi-year Fund
Section	特設分野
Research Field	Food Cycle Research
Research Institution	Kyushu University
Principal Investigator	Yabe Mitsuyasu 九州大学, (連合)農学研究科(研究院), 教授 (20356299)
Co-Investigator(Kenkyū-buntansha)	凌祥之九州大学, (連合)農学研究科(研究院), 教授 (10399363) 立川雅司茨城大学, 農学部, 教授 (40356324) 田中宗浩佐賀大学, 農学部, 教授 (50295028) 李哉ヒヨン鹿児島大学, 農学部, 准教授 (60292786) 大嶋雄治九州大学, (連合)農学研究科(研究院), 教授 (70176874) 高橋義文九州大学, (連合)農学研究科(研究院), 准教授 (60392578)
Co-Investigator(Renkei-kenkyūsha)	HAYASHI Takashi 農林水産省農林水産政策研究所, 環境評価チーム, 主任研究官 (60356300)
Research Collaborator	LEE Myung-Gyu TSUJIBAYASHI Hidetaka
Project Period (FY)	2014-07-18 – 2017-03-31
Keywords	メタン発酵消化液 / 消化液の濃縮 / 肥料成分の分離濃縮回収 / 有機性廃棄物 / 再生可能エネルギー / 消化液の残留化学物質
Outline of Final Research Achievements	The keystone of recycling loop construction of wet organic waste is a conversion from treatment for liquid organic fertilizer (LOF) to utilization. To provide an overview of anthropogenic contaminants in LOFs, products from four biogas plants in Kyushu, Japan, were analyzed for a wide range of contaminants. The concentrations of contaminants in the studied LOFs indicate that they might be safe for agricultural purposes. In even Korea, the development of using LOFs has proved there is a large issue with inefficiency of transport and spray of LOFs. Thus, in this study, a combination of some techniques has proved a separation and a concentration of LOF fertilizer components are possibly below 2,000 yen per ton as a general cost of transport and spray based on laboratory experiments and theoretical calculation; approximately 70 times concentration of nitrogen, approximately 50 times concentration of phosphate and approximately 15 times concentration of potassium.
Free Research Field	農業経済学