【作者】 孙健； 刘宁； 李露； 刘海燕； 黄兴； 孙亚全； 杨潞； 马民； 张云志； 夏勇； 胡芬；

【Author】 Sun Jian;Liu Ning;Li Lu;Liu Haiyan;Huang Xing;Sun Yaquan;Yang Lu;Ma Min;Zhang Yunzhi;Xia Yong;Hu Fen;Central and Southern China Municipal Engineering Design & Research Institute Co.,Ltd;Wuhan Sanzhen Industry Holding Co.,Ltd;Wuhan Urban Drainage Development Co.,Ltd;

【机构】 中国市政工程中南设计研究总院有限公司； 武汉三镇实业控股股份有限公司； 武汉市城市排水发展有限公司；

【摘要】 武汉新型冠状病毒疫情期间,由于含氯消毒剂使用增多,导致污水处理厂进水余氯含量存在升高的可能。为了解疫情期间污水处理厂运行效果是否受到进水余氯的影响,以武汉主城区污水处理厂为对象,对其进水水量、进水余氯、进出水COD、BOD、TN、NH3-N和TP、活性污泥进行监测。结果显示:疫情期间,武汉主城区污水处理厂进水余氯含量处于0～0.22 mg/L,含量有所上升,但含量不高。污水处理厂活性污泥MLSS值有所下降,但污水处理厂正常运行,出水达标排放,处理效果稳定。最后提出当进水余氯值偏高至影响到生物系统时,污水处理厂可提高污泥浓度/提高内外回流、投加活性炭或投加还原性药剂等措施消除余氯影响。更多还原

【Abstract】 During the outbreak of 2019-nCoV in wuhan,the residual chlorine content of inlet in sewage treatment plant may increase due to the use of chlorine-containing disinfectants increasing. To explore the influence of residual chlorine on the operation effect of sewage treatment plant,water inflow,residual chlorine of inflow,COD,BOD,TN,NH₃-N,TP and activated sludge were monitored in Wuhan sewage treatment plants. The results showed that during the epidemic period the residual chlorine content in the inlet of Wuhan sewage treatment plants was between 0 mg/L and 0. 22 mg/L,of which the content increased and was not high. The MLSS value of activated sludge decreased,but the sewage treatment plant was in normal operation. It was suggested that we can increase the internal and external reflux to improve the sludge concentration,add activated carbon or add reducing agent to eliminate the residual chlorine effect when the residual chlorine value of inlet water is high to affect the biological system.更多还原