微氧条件下厌氧颗粒污泥和消化污泥特性研究

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微氧条件下厌氧颗粒污泥和消化污泥特性研究

董春娟*,吕炳南,陈志强

(哈尔滨工业大学市政与环境工程学院,黑龙江 哈尔滨 150090)

摘要:用125mL血清瓶作为批量处理反应器,对厌氧颗粒污泥和消化污泥在厌氧和微氧条件下的COD去除率、污泥产率、产甲烷活性、抗冲击负荷能力等进行对比实验研究。实验结果表明:厌氧颗粒污泥和消化污泥均在微氧条件下表现出高cOD去除率、低污泥产率、高产甲烷活性和强抗冲击负荷能力,且厌氧颗粒污泥在cOD去除率、污泥产率、产甲烷活性和抗冲击负荷等方面更具有优势;对于0.5 gCOD/LR・d的有机负荷,反应器内最佳加氧量为10 mL(10%添加的COD)。关键词:颗粒污泥;消化污泥;微氧;产甲烷

中图分类号:X 172 文献标识码:A 文章编号:1005-9830(2005)02-0216-03

 Characteristic of Anaerobic Granular Sludge and Digestion Sludge

under Microaerobic Conditions

DONG Chun-juan, LU Bing-nan, CHEN Zhi-qiang

(School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China)

Abstract: Using 125 mL serum bottle as batch reactors, the COD removal efficiency, biomass production rote,

methanogenic activity and supporting shock load of anaerobic granular sludge and digestion sludge were assayed

under anaerobic and microaerobic conditions. The results showed that both of the anaerobic granular sludge and

digestion sludge had high COD removal efficiency, low biomass production rote, high methanogenic activity and

better supporting shock load under microaerobic conditions. Moreover, the anaerobic granular sludge had appar-

ent advantage. The optimal supplement of oxygen was 10% of the adding COD.

Key words: granular sludge; digestion sludge; micmaembic; methanogens

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