污染水源的生物法预处理

BIOLOGICAL PRETREATMENT FOR RAW WATER POLLUTED

本文研究用生物转盘工艺预处理受污染源水，试验结果表明，该工艺对源水中的ＢＯＤ５、ＣＯＤＭｎ、氯氮、酚等污染物质有良好的去除效果。源水经过预处理后进行常规处理时，其混凝沉淀性能有明显改善，加矾量减少；在消毒过程中加无量显著降低。生物法预处理污染源水，本质上是水体自净过程的人工化，对饮用水的卫生与安全无任何不良影响。

The paper studieS the pretreatment of raw water polluted by using rotating biological contactors (RBCs). The results show that RBCs can efficiently remove BOD, COD, NH-N, phenoletc. from the caw water polluted. After biological pretreated, the raw water's property of coagulation and sedimentation is well ameliorated. And the demanded quantities of coagulant and chlorine are markedly reduced when the raw water is treated by conventional water treatment processes.Biological pretreatment of raw water polluted is essentially the artificial process of raw waterself-purification in nature and has no harmful effects on drinking water.