改良型ICEAS工艺处理低温生活污水的研究

Study on domestic sewage treatment by using modified ICEAS process at low temperatures

在低温条件下采用改良型ICEAS工艺处理生活污水，与常温条件下的处理效率进行对比分析。实验结果表明，在水温5～10℃时，改良型ICEAS工艺对生活污水中的有机物、氨氮、总氮和总磷的平均去除率分别达到87．1％、62．7％、58．5％和75．7％；在水温10～14℃时改良型ICEAS工艺对以上污染物的去除率分别达到87．4％、69．7％、65．5％和80．6％。总体上来讲，低温条件下较常温下的去除率分别降低了4％、26％、18％和4％。

An innovated ICEAS bioreactor was applied to treat sewage at lower temperatures with the removal rates compared with those obtained at normal temperature. The removals of organics, ammonia nitrogen （NH3-N）, total nitrogen （TN） and total phosphorus （TP） by the innovated ICEAS were 87.1%, 62.7%, 58.5% and 75.7% at the temperature of 5 - 10℃. Those removals increased to 87.4% , 69.7% , 65.5% and 80.6% at the temperature of 10 - 14℃. The removal rates obtained at lower temperatures were 4% ,26% , 18% and 4% lower than those at normal temperature for organics, NHa-N, TN and TP.