TIANRuo,ZHONGYan-min,HUANGJia-yi,et al.Deep Purification Effect of Ultrafiltration+Nanofiltration Double Membrane System on Low Temperature and Low Turbidity Surface Water[J].China Water & Wastewater,2023,39(17):32-37.
超滤+纳滤系统深度净化低温低浊期梁子湖水中试
- Title:
- Deep Purification Effect of Ultrafiltration+Nanofiltration Double Membrane System on Low Temperature and Low Turbidity Surface Water
- Keywords:
- ultrafiltration; nanofiltration; low temperature and low turbidity water; pilot-scale test
- 摘要:
- 针对冬季地表水出现低温低浊的情况，开展了超滤+纳滤双膜系统处理武汉市梁子湖湖水的深度净化中试。结果表明：武汉虽处于我国中部地区，但冬季地表水仍存在低温低浊现象，常规混凝/沉淀/过滤工艺出水浊度等可以达到新国标要求，但UV254、总溶解性固体（TDS）等含量仍较高。经过双膜法深度处理后，出水浊度可达到0.1 NTU左右，UV254 达到0.010 cm-1以下，TDS在50 mg/L左右。冬季低温对双膜系统的净化效果影响不大。低温期由于原水水质较好，超滤膜可以保持长期稳定运行。由于超滤膜的前处理效果较好，进一步延长了纳滤膜的使用时间。纳滤膜在研究时段内没有进行清洗的情况下，仍能保持较高的膜通量，跨膜压差上升较慢。
- Abstract:
- In view of the situation of low temperature and low turbidity of surface water in winter, the ultrafiltration+nanofiltration double membrane system was used in the pilot study to deeply purify the raw water of Liangzihu Lake in Wuhan. The research results showed that although Wuhan is located in the middle of China, the phenomenon of low temperature and low turbidity still exists in the surface water in winter, and the turbidity of the water produced by conventional coagulation，precipitation and filtration process could meet the requirements of the new national standard. However, the contents of UV254 and TDS were still high. After the double membrane deep purification treatment, the effluent turbidity could reach about 0.1 NTU, UV254 was less than 0.010 cm-1, and TDS was about 50 mg/L. Low temperature in winter had little effect on the water purification effect on double membrane system. The UF membrane could keep stable operation for a long time due to the good quality of raw water in low temperature. Because of the good pre-treatment effect of UF membrane, the service time of NF membrane was further extended. In the study period, NF membrane was not washed, but still maintained high membrane flux, and the rise of transmembrane pressure was very slow.
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[1]杨斐,刘宏远,朱海涛,等.强化组合超滤技术处理污染水源水[J].中国给水排水,2020,36(7):42.
[2]王慧文,陈卫,陶辉.预氧化/超滤组合除锰工艺的膜污染特性[J].中国给水排水,2020,36(9):22.
[3]王小兵,游浩荣,叶元柳,等.PAC/UF工艺处理微污染水源水的膜污染特性[J].中国给水排水,2020,36(11):27.
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[5]刘建林,谢杰.膜芬顿技术在污水深度处理中的应用[J].中国给水排水,2020,36(22):145.
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