摘要
对乌鲁木齐河东污水处理厂AB工艺的实际脱氮除磷效果进行了监测分析。结果表明:AB工艺处理乌鲁木齐城市污水的除磷效果优于脱氮效果,对TP的去除率平均为80%;A段对TN的去除率平均为44.7%,经过B段后NH+4-N含量升高,使AB工艺对TN的总去除率降至35.7%左右。A段厌氧污泥进入B段可以取得稳定的除磷效果,去除率平均为96.2%;B段污泥进入A段对AB工艺的脱氮除磷效果没有产生明显影响。B段出现NH+4-N升高的主要原因是该段的水力停留时间未达到硝化所需时间的要求。
The actual removal rates of nitrogen and phosphorus by adsorption biodegradation （AB） process in Hedong Wastewater Treatment Plant of Urumqi were monitored and analyzed. The results show that the phosphorus removal rate is higher than that of the nitrogen, and the average removal rate of total phosphorus （TP） reaches 80%. The total nitrogen （TN） is removed by 44.7% after stage A, but the ammonia nitrogen content rises up after stage B, so the TN removal rate drops to about 35.7%. When the anaerobic sludge from stage A flows into stage B, 96.2% of TP is removed after stage B. When the sludge from stage B flows into stage A, these is little influence on removal of phosphorus and nitrogen. The short hydraulic retention time of stage B leads to release of ammonia into water.
出处
《中国给水排水》
CAS
CSCD
北大核心
2007年第2期92-95,共4页
China Water & Wastewater
关键词
AB工艺
污水处理
脱氮除磷
AB process
wastewater treatment
nitrogen and phosphorus removal
