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TREATMENT OF ANAEROBICALLY TREATED SLUDGE MD ANAEROBIC DIGESTION METHOD FOR ANAEROBICALLY DIGESTED SLUDGE
TREATMENT OF ANAEROBICALLY TREATED SLUDGE MD ANAEROBIC DIGESTION METHOD FOR ANAEROBICALLY DIGESTED SLUDGE
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机译：厌氧消化污泥的处理MD厌氧消化污泥的厌氧消化方法
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摘要
PROBLEM TO BE SOLVED: To solubilize anaerobic sludge at a low cost, to reduce the size of treatment equipment and to increase the amount of gaseous methane to be generated by bringing the anaerobic sludge into contact with oxygen at a specific temperature or below. SOLUTION: Organic matter 4 flows into an anaerobic digestion tank 2 and is subjected to anaerobic digestion. Part 5 of the anaerobically treated sludge discharged from the anaerobic digestion tank 2 is introduced into an oxygen contact treating vessel 1 and is subjected to an oxygen contact treatment. The balance 7 is separated by a solid-liquid separator 3 to a treated liquid 8 and thickened digested sludge 9. The treatment is required to be executed at =100 deg.C as a treatment temperature and may be executed at it is without heating and cooling in order to reduce the treatment cost. The treated liquid 8 is discharge outside of the system. The thickened digested sludge 9 is returned to the anaerobic digestion tank 2. In addition, the anaerobic sludge introduced into the oxygen contact treating vessel 1 is brought into contact with the oxygen of air, etc., to make the anaerobic oxide easily soluble. The treated sludge 6 after the oxygen contact treatment is returned to the anaerobic digestion tank 2.
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