【作者】 李波； 吴光学； 孙迎雪； 胡洪营； 吴毅晖； 郭昉； 郭玉梅；

【Author】 LI Bo~1 WU Guangxue~1 SUN Yingxue~2 HU Hongying~1 WU Yihui~3, GUO Fang~3 GUO Yumei~3 (1.Graduate School at Shenzhen,Tsinghua University,Shenzhen,518055;2.Beijing Technology and Business University,Beijing,10048;3.Kunming Dianchi Investment Co.Ltd.,Kunming,65000)

【机构】 清华大学深圳研究生院； 北京工商大学； 滇池水务有限公司；

【摘要】 本文对昆明市第七污水处理厂A²O工艺的脱氮除磷性能进行了分析。结果表明该厂进水水质波动较大:系统出水BOD、COD、SS、NH₄-N都能很好的达到级A标准,而出水TN和TP浓度变化波动较大,一级A达标率分别为84%和73%。该厂两套工艺硝化反应在好氧条件下快速完成,约2/3的好氧阶段为微生物内源呼吸阶段,造成大量曝气能量损失。磷主要通过悬浮物的沉淀去除,生物除磷没有发挥很好的作用。更多还原

【Abstract】 Performance of the A²O process in the 7th Kunming WWTP in the removal of nitrogen and phosphorus was analyzed.The results showed that the influent water quality varied greatly;the effluent BOD,COD,SS and NH₄-N met the first-A standard of China,while the ratios of TN and TP achieved the standard were only 84%and 73%,respectively. Nitrification occurred only in the initial aerobic stage,and activated sludge in about 2/3 of the aerobic tank volume was under endogenous respiration conditions,resulting in energy waste. The phosphorus was removed mainly through removing of MLSS and there was no enhanced biological phosphorus removal carried out in the system.更多还原