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Characteristic of Anaerobic Granular Sludge and Digestion Sludge under Microaerobic Conditions


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Characteristic of Anaerobic Granular Sludge and Digestion Sludge under Microaerobic Conditions
DONG Chun-juanLU Bing-nanCHEN Zhi-qiang
School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China
granular sludge digest ion sludge microaerobic methanogens
Using 125 mL serum bott le as batch reactors, the COD removal efficiency, biomass product ion rate, methanogenic activity and supporting shock load of anaerobic granular sludge and digestion sludge were assayed under anaerobic and microaerobic condit ions. The results showed that both of the anaerobic granular sludge and digestion sludge had high COD removal efficiency, low biomass product ion rate, high methanogenic activity and bet ter supporting shock load under microaerobic conditions. Moreover, the anaerobic granular sludge had apparent advantage. The optimal supplement of ox ygen w as 10% of the adding COD.


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Last Update: 2013-05-23