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| 混凝-粉末活性炭吸附-超滤工艺去除砂滤池反洗水溶解性有机物 | |
| 引用本文： | 李开伟,李伟英,陆俊宇,马前,蒋福春.混凝-粉末活性炭吸附-超滤工艺去除砂滤池反洗水溶解性有机物[J].膜科学与技术,2011,31(4). |
| 作者姓名： | 李开伟 李伟英 陆俊宇 马前 蒋福春 |
| 作者单位： | 1. 同济大学生命科学与技术学院,上海,200092 2. 同济大学长江水环境教育部重点实验室,上海,200092 3. 上海市虹口区环保局,上海,200092 4. 苏州自来水公司,苏州,215002 |
| 基金项目： | 苏州市重点科技支撑项目(ZS0801); 国家水体污染控制与治理科技重大专项课题(2008ZX07421-006) |
| 摘 要： | 通过混凝-粉末活性炭(PAC)吸附-浸没式超滤膜(UF)组合工艺去除砂滤池反洗水(FBWW)中溶解性有机物(DOM),以降低后续回用过程中消毒副产物(DBPs)生成量。试验对3种混凝药剂——聚合硫酸铁(PFS)、三氯化铁(FeCl3)、聚合氯化铝(PACl)处理FBWW的效果进行了比较,探讨其对UV254和水溶性有机物(DOC)的去除效果。结果表明,PFS对有机物去除效果优于PACl和FeCl3;PFS与粉末活性炭混合投加可增加有机物去除率,粉末活性炭为20mg/L,PFS为8mg/L时出水浊度为0.85NTU,UV254和DOC去除率分别为43%和31%;采用混凝-PAC吸附-超滤膜(UF)处理FBWW对UV254和DOC去除率分别达到51%和41%,出水浊度为0.19NTU,UV254为0.031cm-1,DOC为2.76mg/L.此工艺可有效降低反冲洗水中DOM含量,达到重新利用净水厂废水的目标. |
| 关 键 词： | 溶解性有机物 混凝 粉末活性炭吸附 砂滤池反洗水 浸没式超滤膜 |
Study on DOM removal of filter backwash water by coagulation-PAC adsorption-submerged UF process |
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| LI Kaiwei,LI Weiying,LU Junyu,MA Qian,JIANG Fuchun.Study on DOM removal of filter backwash water by coagulation-PAC adsorption-submerged UF process[J].Membrane Science and Technology,2011,31(4). | |
| Authors: | LI Kaiwei LI Weiying LU Junyu MA Qian JIANG Fuchun |
| Affiliation: | LI Kaiwei1,LI Weiying2,LU Junyu3,MA Qian3,JIANG Fuchun4 (1.The Cllege of Life Science and Technology,Tongji University,Shanghai 200092,China,2.Key Laboratory of Yangtze River Water Environment,Ministry of Education,3.Shanghai Hongkou Environmental Protection Bureau,4.Suzhou City Water Company,Suzhou 215002,China) |
| Abstract: | A coagulation-powered activated carbon(PAC)adsorption-submerged ultrafiltration membrane(UF) process was used to remove dissolved organic matter(DOM) in filter backwash water(FBWW),and disinfection by-products in disinfection process was simultaneously reduced.Three types of coagulants,polyferric sulfate(PFS),ferric chloride(FeCl3),polymeric aluminum chloride(PACl),were compared on the treatment of FBWW.The effects on the UV254 and DOC were studied.The results indicate that PFS can be more efficient in orga... |
| Keywords: | dissolved organic matter coagulation activated powered carbon adsorption filter backwash water submerged UF |
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