CAJ | 학술논문

本文通过混凝/微滤工艺对青草沙水源水水厂的生产废水开展了回用处理研究，分析了常规污染物、微量有机物、金属离子的去除规律和消毒副产物生成趋势。结果表明，混凝预处理可以有效减缓膜污染；组合工艺对悬浮态物质如颗粒物、细菌、大肠杆菌等有较好的去除效果，去除率均达85%以上；对溶解性成分，尤其是Al和微量有机物去除效果不佳，去除率均低于20%。生产废水膜过滤后相同的消毒剂浓度时消毒副产物的生成趋势高于砂滤池和炭滤池出水。研究认为，青草沙水源水厂的生产废水净化后回用的最佳回用点是砂滤池前或活性炭生物滤池前。
본문통과혼응/미려공예대청초사수원수수엄적생산폐수개전료회용처리연구，분석료상규오염물、미량유궤물、금속리자적거제규률화소독부산물생성추세。결과표명，혼응예처리가이유효감완막오염；조합공예대현부태물질여과립물、세균、대장간균등유교호적거제효과，거제솔균체85%이상；대용해성성분，우기시Al화미량유궤물거제효과불가，거제솔균저우20%。생산폐수막과려후상동적소독제농도시소독부산물적생성추세고우사려지화탄려지출수。연구인위，청초사수원수엄적생산폐수정화후회용적최가회용점시사려지전혹활성탄생물려지전。
The bench-scale study on wastewater of water work which purifies Qingcaosha raw water was fulfilled using the combined process of coagulation and micro-filtration (MF), and the removal effect of traditional pollutants, trace organics and metal ions as well as the generation trend of the disinfecting by-products were analyzed. It was showed by the results that ,coagulation pretreatment could mitigate flat-sheet membrane fouling effectively; the combined process was effective to remove particles、strains、Escherichia coli and other suspended substances with over 85%removing rate, but it could not do well with the dissolved components, especially aluminum and trace organics, with the degradation of under 20%. At the same concentration of the chlorine disinfectant, the generation trend of the disinfection by-products after membrane filtration was higher than the effluent of the sand filter or carbon filter. It was suggested that the optimal reuse points of the treated wastewater could be placed in front of the sand filter or the biological activated carbon filtration.