【摘要】 采用碱式氯化铝、硫酸亚铁、硫酸铁、聚丙烯酰胺为实验药剂,对城市污水强化一级处理进行研究,并分析了pH值对SS、COD去除率的影响。实验结果表明:对以COD、SS为去除对象的城市污水,采用碱式氯化铝效果最好,投药量为60mg/L时,SS、COD去除率分别达90%、80%以上。更多还原

【Abstract】 Adopting basic aluminium chloride, ferrous sulfate, ferric sulfate and polyacry lamide as test agents, this paper studies on urban sewage’s strenuous primary treatment, and analyses on the influence of pH value on the removing ratio of SS and COD. The test results show that for the urban sewage, the removing targets of which are SS and COD, the result of adopting basic aluminium chloride as test agent will be the best, and the removing ratio of SS and COD will be 90%and 80%or more respectively with the amount of basic aluminium chloride of 60mg/L.更多还原