| Project/Area Number |
17380190
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Boundary agriculture
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| Research Institution | Obihiro University of Agriculture and Veterinary Medicine |
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Principal Investigator |
KURAMOCHI Katsuhisa Obihiro University of Agriculture and Veterinary Medicine, 畜産学部, Associate professor (00091546)
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| Co-Investigator(Kenkyū-buntansha) |
UMETSU Kazutaka Obihiro University, 大学院・畜産学研究科, Professor (20203581)
TANI Masayuki Obihiro University, 畜産学部, Associate professor (00271750)
IHARA Ikko Kobe University, 農学部, Assistant Professor (50396256)
SAKAI Yasuzo Utsunomiya University, 工学部, Associate professor (70186998)
WATANABE Tuneo Tokyo Metropolitan University, 都市教養学部, Professor (90240499)
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| Project Period (FY) |
2005 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥12,800,000 (Direct Cost: ¥12,800,000)
Fiscal Year 2006: ¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2005: ¥9,200,000 (Direct Cost: ¥9,200,000)
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| Keywords | livestock wastewater / coagulation and decomposition / magnetic activated sludge process / electrochemical oxidation / dairy wastewater / COD / ammonium nitrogen / total phosphate / 畜産系廃水処理 / パーラー廃水 / 実証試験 / 農畜産系廃水処理 / パーラー排水 / 電解処理法 / アンモニア態窒素 / メタン発酵消化液 |
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| Research Abstract |
1) Analysis of livestock wastewater in Tokachi District.
We collected 15 livestock wastewater samples in Tokachi district and performed analysis of these water samples. BOD, total nitrogen and total phosphate was 500~1500mg/L, T-N100ng/l, T-P20mg/L in the average, respectively. These results were very important information for the future investigation for livestock water control.
2) Coagulation and decomposition of livestock wastewater in the laboratory
We tried coagulation and decomposition of livestock wastewater in the laboratory with the use of the small scale of magnetic activated sludge process system. As a results, COD of the wastewater decreased about 93% by this system for 149 days continuously. This indicates that magnetic activated sludge process is very effective method for coagulation and decomposition of livestock for practical use in the field.
We also tried coagulation and decomposition of livestock wastewater in the laboratory with the use of small scale of electrochemical oxidation process systems. As a result, COD, ammonium nitrogen and total phosphate was decreased 70%, 90% and 92%, for 4hr treatment, respectively. These results also indicate that electrochemical oxidation systems are very effective methods for coagulation and decomposition for livestock wastewater.
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