Investigate on the water treatment effect of adding PAC in the influent of filter, Simulation the result of adding PAC in other technological process of water treatment, and make a comparison of the organic compound removal rate with Adding PAC in the influent of filter. The experiment results show that the removal rate for the CODMn, UV254 in the water of clarification tank effluent brought by the technology adding PAC in the effluent of filter is higher about 30% than didn＇t add, The removal rate for the COD~, UV254 is 26% and 27%when adding 10mg/L PAC in the influent of filter the removal rate for the CODMn, UV2s4 is 40% and 55% by precipitation and filter, the effect close to adding 15mg/L PAC in the coagulant, On the whole, in the technology of adding PAC in the filter influent the dosage is lower and got better re- sults owing to the high utilization rate of PAC.%考察滤池前端投加粉末活性炭（PAC）T艺的水处理效果，模拟其他位置投加PAC时去除水中有机物的情况，并与滤池前端投加PAC工艺的去除效率进行比较。实验结果说明：在滤池前端投加适量的PAC可以将过滤对COD‰、UV254的去除率提高20％以上，CODMn、UV254平均去除率约为26％、27％；滤池前端投加10mg／LPAC时，沉淀、过滤两个过程对CODMn、UV254的总去除率分别约为40％、55％，与混凝过程投加15mg／I。PAC时取得的效果相当，说明滤池前端投加PAC能更好地发挥其吸附作用，利用效率更高。
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