Degradation of Persistent Organic Pollutants in gingko leaf compost

• Project/Area Number: 25340075
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Environmental engineering and reduction of environmental burden
• Research Institution: Azabu University
• Principal Investigator: Hisamatsu Shin 麻布大学, その他部局等, 講師 (10198997)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: イチョウ堆肥 / 微生物 / PCB / 分解 / 堆肥 / イチョウ

Outline of Final Research Achievements

Microorganism flora in the compost using the gingko fallen leaves which is difficult to make composization was examined. As a result, microorganism flora changed widely during the compost process. Microorganisms were obtained from the compost when internal temperature risen in the compost process and PCBs degradation by microorganism was analyzed. The results were obtained that the PCB amount in the medium decreaseｄ in about half within all samples.In particular, the decrease of the PCB amount to about 90% was confirmed by one bacteria.