【摘要】 采用生物滤池和常规处理对受污染的某地表水进行试验研究 ,用膜过滤法对其出水进行了分子量分析 ,考察了 2个处理单元对不同分子量区间有机物的去除效果。结果表明 :原水中分子量小于 1 0 0 0的有机物占总 DOC的 78.2 9% ;生物滤池对分子量小于50 0、50 0～ 1 0 0 0和 >60 0 0 0的有机物去除率分别为 54.9%、36.1 %和 2 0 .7% ;常规处理对以上分子量区间有机物的去除率分别为1 5.3%、- 2 0 %和 48.75%。更多还原

【Abstract】 With membrane filtration method,this paper had investigated the removal effects of a bio-filter and conventional water treatment processes on different molecular weights organics in polluted surface water.The results had indicated that the organics of molecular weights being less than 1000 Dalton is 78.29% of total DOC in raw water.After bio-filter,54.9%,36.1% and 20.7% removal were reached for the organics of molecular weights less than 500 Dalton,500～1000 Dalton,6000 Dalton respectively while the applied conventional water treatment processes achieved the removal rates of l5.3%,-20% and 48.75% respectively for them.更多还原