摘要
太湖流域某污水处理厂进水COD低、而氮磷质量浓度偏高,属于低碳源城市污水处理,生物脱氮除磷难度大,本工程采用先进的MBR工艺,其生物段为强化生物脱氮除磷功能的预缺氧改良AAO工艺(A-A2O),脱氮除磷效果好,且节省外加碳源和除磷药剂,出水水质稳定优于GB 18918-2002一级A类排放标准,可作为再生水回用。
The concentration of influent COD is low, but nitrogen and phosphorus are on the high side in Taihu basin. For this type of low carbon municipal sewage treatment, biological nitrogen and phosphorus removal is a problem ofWWTP. The advanced process Membrane Bioreator（MBR） was applied to this plant. And the A-A2O process was operated in the biological treatment reactor, which strengthened the function of biological nitrogen and phosphorus removal. This system has got a good effect ofnitrogen and phosphorus removal , and saved the dosage ofadscititious carbon and chemical medicament. The effluent quality was better than the A criteria of Class I specified in Discharge standard of pollutants for municipal wastewater treatment plant（GB 18918--2002）. And it can be used as the reclaimed water.
出处
《水处理技术》
CAS
CSCD
北大核心
2013年第2期130-132,共3页
Technology of Water Treatment
关键词
低碳源
MBR工艺
A—A2
O
脱氮除磷
low carbon source
membrane bioreator （MBR）
preanoxic anaerobic/anoxic/oxic
nitrogen and phosphorus removal
