复合式厌氧反应器预处理低温城市合流制污水中试

采用有效容积为18．55m^3的复合式厌氧反应器（AHR）处理低温、低浓度城市合流制污水，中试结果表明，在水温为9．5～12℃、水力停留时间为3．9h的条件下，对SS和COD的去除率分别达到了84．5％和36．13％；经处理后溶解性COD占总COD的比例由进水的49．69％提高到出水的73．08％，可生化性得到了明显改善；在COD／SO4^2-值为1．60即SO4^2-充足的情况下，硫酸盐还原菌（SRB）较产甲烷菌（MPB）占优势，对SO4^2-的去除率高达73．26％。可见，采用AHR预处理低温城市合流制污水是可行的。

上海合流污水物化法强化一级处理的中试研究

介绍了污水物化法强化一级处理的特点及用于上海合流污水的中试研究，分析了单独投加铁盐、铝盐以及它们同有机高分子絮凝剂复配使用的处理效果。试验表明，铁盐、铝盐同有机高分子絮凝剂复配使用强化一级处理是一种经济高效、适合于合流污水的处理工艺。

上海污水二期工程污水化学强化处理的试验研究

分析了城市合流污水的化学强化一级处理的可行性,并就各混凝剂的性能进行比较,提出了最佳处理方案。试验表明,聚合双酸铝铁同有机高分子絮凝剂复配使用强化一级处理是一种经济高效、适合于城市合流污水的处理工艺。

Pollution control of outfall of rainwater-sewage confluence in old town

In order to improve water quality of middle ancient canal in Zhenjiang city a pollution control project was carried out.The research area is the middle catchment area of the ancient canal river system in the old town of Zhenjiang. The specific research object is the runoff of the outfall of rainwater-sewage confluence in the area. On the basis of detecting and analyzing the water yield and water quality of the runoff of rainwater-sewage confluence a combined technology which contains four independent continuous processes for lowering pollution load was developed and system equipment was established and put into operation. The processing effects of the project were monitored and analyzed.The results show that the pollution control project of outfall runoff is efficient which decreases the pollution load including chemical oxygen demand COD total phosphorus TP suspended solids SS and ammonia-nitrogen NH3-N .As a result the water environment of the ancient canal is protected.