| 用于地下水回灌的再生水纳滤深度处理 | |
| 吴琳琳 ; 赵璇 ; 张猛 ; WU Linlin ; ZHAO Xuan ; ZHANG Meng | |
| 2010-06-04 ; 2010-06-04 | |
| 关键词 | 地下水回灌 再生水 纳滤膜 groundwater recharge reclaimed wastewater nanofiltration membrane X703.1 |
| 其他题名 | Advanced treatment of reclaimed wastewater by nanofiltration for groundwater recharge |
| 中文摘要 | 为保障回灌地下再生水水质,采用NF270纳滤膜深度处理污水厂二级出水,测量出水中污染物的去除效果,研究最佳操作条件。结果表明:该纳滤膜使溶解性有机碳(DOC)去除率大于70%,DOC的质量浓度降至1.5 mg.L-1,满足回灌过程中DOC质量浓度<3.0 mg.L-1的要求;使总溶解性固体(TDS)的去除率大于45%,TDS的质量浓度降至300mg.L-1,达到I类地下水标准;对硬度、总磷、各种无机离子等均有去除效果。小于0.8 MPa的压强和4 L.min-1的进水体积流量可以减缓纳滤膜的污染进程。用0.1%NaOH溶液清洗污染膜可以使通量恢复。; An NF270 nanofiltration membrane was used to treat reclaimed wastewater to guarantee water quality for groundwater recharge.The results show that the DOC(dissolved organic carbon) were reduced to 1.5 mg稬-1 with over 70% removal efficiency,which meets the requirement of less than 3.0 mg稬-1 for groundwater recharge.The TDS(total dissolved solids) were reduced to 300 mg稬-1 with over 45% removal efficiency,which meets the standard of Class I groundwater.The NF270 membrane was found to have different hardness,total phosphate and other inorganic ions removal efficiencies.A lower pressure(less than 0.8 MPa) and proper volume flow rate(4 L穖in-1) effectively alleviate membrane fouling during the treatment of secondary effluent.Alkaline cleaning with 0.1% NaOH solution restores the membrane pressure drop characteristics.; 国家自然科学基金资助项目(50878115) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/35360]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 吴琳琳,赵璇,张猛,等. 用于地下水回灌的再生水纳滤深度处理[J],2010, 2010. |
| APA | 吴琳琳,赵璇,张猛,WU Linlin,ZHAO Xuan,&ZHANG Meng.(2010).用于地下水回灌的再生水纳滤深度处理.. |
| MLA | 吴琳琳,et al."用于地下水回灌的再生水纳滤深度处理".(2010). |
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