北方寒地冬季城镇污水处理厂运行管理策略

Operation management strategy of urban sewage treatment plant in winter in northern China

冬季水温降低,污水处理设备和活性污泥微生物自身的活性逐渐下降、污泥的沉淀性变差,有机物去除率降低、硝化和反硝化作用不完全,导致城市污水脱氮除磷效果不理想,出水水质指标异常。采用有效的应对措施,保障城镇污水处理厂在低温条件下能正常运转,达标排放。

Winter comes,lower water temperature,water treatment equipment and the activity of activated sludge microbial itself gradually decline,sedimentation of sludge,reduce the removal rate of organic matter and incomplete nitrification and denitrification,lead to urban sewage denitrification and phosphorus removal effect is not ideal,abnormal water quality indicators