| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Research Abstract |
This study was conducted to develop a new feeding wastewater system that alkali supply is reduced in methane fermentation processes treating two types of acidic wastewater, i.e. sweet potato-based alcohol distillery wastewater and bio-ethanol distillery wastewater. The system could supply wastewater in the height direction, and was successful to reduce alkalinity to 63% and 36% in mesophilic and thremophilic methane fermentation processes, respectively, at the COD loading rate of 30 kgCOD/m3/day.
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