改良A^2/O工艺处理生活污水的脱氮除磷效果  

Nitrogen and Phosphorus Removal in Domestic Sewage by Modified A^2/O Process

作　　者：王琼[1] 庞雪玲 史彦伟 温沁雪[1] 陈志强[1] WANG Qiong;PANG Xue-ling;SHI Yan-wei;WEN Qin-xue;CHEN Zhi-qiang(State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090,China;Beijing Enterprises Water Group Limited,Beijing 100142,China)

机构地区：[1]哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090 [2]北控水务集团有限公司,北京100142

出　　处：《中国给水排水》2018年第23期100-104,共5页China Water & Wastewater

基　　金：山西省重点研发计划项目(201603D111019-1);黑龙江省研发计划项目(GJ2017GJ0023)

摘　　要：在不改变污水厂总反应体积的情况下,为改善传统A^2/O工艺处理生活污水的脱氮除磷效果,通过减少缺氧池体积、在厌氧池前设置预缺氧池的方法建立了改良A^2/O工艺。试验结果表明,改良A^2/O工艺去除颗粒性COD的效果更好,可使较多的颗粒性COD转化为溶解性COD,且更易于满足脱氮除磷对碳源的需求,适宜处理低碳源污水。改良A^2/O工艺厌氧段出水TP为29. 11 mg/L、PHA含量为7. 7 mg/gMLSS,而传统A^2/O工艺厌氧段出水TP为18. 05 mg/L、PHA含量为6. 1 mg/g MLSS,厌氧段释磷效果较好,可见改良A^2/O工艺相比于传统A^2/O工艺有更好的碳源利用能力和除磷能力。Without changing the total reaction volume of the wastewater treatment plant,a modified A^2/O process was established by reducing the volume of the anoxic tank and setting pre-anoxic tank before anaerobic tank,to improve the nitrogen and phosphorus removal efficiency of the traditional A^2/O process for the treatment of domestic sewage.The results showed that the modified A^2/O process had better particle COD removal efficiency,and more particle COD could be transformed into soluble COD.The modified A^2/O process was easier to meet the demand of carbon source for nitrogen and phosphorus removal,which was suitable for the treatment of low carbon sewage.The effluent TP and PHA of the anaerobic tank in the modified A^2/O process were 29.11mg/L and 7.7mg/gMLSS,while the effluent TP and PHA of the anaerobic tank in the traditional A^2/O process were 18.05mg/L and 6.1mg/gMLSS, which indicated that the modified A^2/O process had better phosphorus removal efficiency.Therefore,the modified A^2/O process had better carbon source utilization capacity and phosphorus removal efficiency than the traditional A^2/O process.

关 键 词：改良A^2/O工艺 传统A^2/O工艺 生活污水 脱氮除磷 碳源 

分 类 号：TU992.3[建筑科学—市政工程]