[1]谢喜平,张佩瑶,杨运,等.低压纳滤膜用于给水深度处理的中试研究[J].中国给水排水,2020,36(17):30-35.
　XIE Xi-ping,ZHANG Pei-yao,YANG Yun,et al.Pilot-scale Test Study on Low-pressure Nanofiltration Membrane Applied in Drinking Water Advanced Treatment[J].China Water & Wastewater,2020,36(17):30-35.
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低压纳滤膜用于给水深度处理的中试研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第36卷 期数: 2020年第17期 页码: 30-35 栏目: 出版日期: 2020-09-01
Title:
Pilot-scale Test Study on Low-pressure Nanofiltration Membrane Applied in Drinking Water Advanced Treatment
作者:
谢喜平1，张佩瑶2，杨运1，李天玉2，陈亦力2，俞开昌2，姚家隆1，郭莎莎2
(1.太仓市水务集团有限公司，江苏太仓215400；2.北京碧水源科技股份有限公司，北京102206)
Author(s):
XIE Xi-ping1，ZHANG Pei-yao2，YANG Yun1，LI Tian-yu2，CHEN Yi-li2，YU Kai-chang2，YAO Jia-long1，GUO Sha-sha2
(1. Taicang Water Group Co. Ltd.， Taicang 215400， China； 2. Beijing Origin Water Technology Co． Ltd．， Beijing 102206， China)
关键词:
给水深度处理; 低压纳滤膜; 痕量有机物; 截留率
Keywords:
drinking water advanced treatment; low-pressure nanofiltration membrane; trace organic compounds (TrOCs); interception rate
摘要:
以长江流域某自来水厂沉淀池出水为研究对象，采用超低压纳滤膜对其进行深度处理。中试（设计规模为50 m3/d）考察了碧水源DF膜系统对关键污染物的截留性能、最佳工艺参数。结果表明，在设计回收率85%条件下，DF膜系统对CODMn、总铝、总溶解性固体（TDS）和总硬度的截留率分别为(74.0±6.0)%、(96.8±2.4)%、(24.6±1.5)%和(30.5±2.7)%，对检出的15种痕量有机物平均截留率为92.4%。优化工艺参数后，在不添加阻垢剂的条件下，回收率可达90%，稳定运行通量为16~18 L/(m2·h)，化学清洗周期为3个月左右，DF膜系统的直接运行费用为0.247元/m3，工艺绿色，产水率高，具有良好的经济性。
Abstract:
Low-pressure nanofiltration membrane was used to treat effluent from a sedimentation tank of a drinking water plant in Yangtze River basin. Interception performance of the key pollutants and optimum operational parameters of a pilot-scale test DF membrane system (design scale of 50 m3/d) were investigated. When the recovery rate was set to be 85%, interception rates of CODMn, total aluminum, TDS and total hardness were (74.0±6.0)%, (96.8±2.4)%, (24.6±1.5)% and (30.5±2.7)%, respectively, and the average interception rate of 15 kinds of trace organic compounds was 92.4%. After optimizing the process parameters, the recovery rate could reach to 90% with operation flux of 16-18 L/(m2·h) and chemical cleaning cycle of three months without adding inhibitor. The operational cost was 0.247 yuan/m3, indicating that the process was green and economy with high water recovery rate.
更新日期/Last Update: 2020-09-01