[1]赵永志,高严,何文丽,等.不同纳滤膜对垃圾渗滤液结垢离子去除效果分析[J].中国给水排水,2021,37(23):57-60.
　ZHAO Yong-zhi,GAO Yan,HE Wen-li,et al.Effect of Different Nanofiltration Membranes on Removal of Scale-forming Ions from Landfill Leachate[J].China Water & Wastewater,2021,37(23):57-60.
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不同纳滤膜对垃圾渗滤液结垢离子去除效果分析

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第23期 页码: 57-60 栏目: 出版日期: 2021-12-01
Title:
Effect of Different Nanofiltration Membranes on Removal of Scale-forming Ions from Landfill Leachate
作者:
赵永志，高严，何文丽，尹云军，田丽森,王彦芳
(中国恩菲工程技术有限公司能源环境事业部，北京100038)
Author(s):
ZHAO Yong-zhi，GAO Yan，HE Wen-li，YIN Yun-jun，TIAN Li-sen,WANG Yan-fang
(Department of Energy & Environment， China ENFI Engineering Corporation， Beijing 100038, China)
关键词:
垃圾渗滤液; 纳滤膜; 结垢离子
Keywords:
landfill leachate; nanofiltration membrane; scale-forming ions
摘要:
为明确不同纳滤膜对垃圾渗滤液结垢离子的去除效果，分析了实际运行系统中不同时期垃圾填埋场（A和B）渗滤液纳滤膜元件进水结垢离子的浓度特征，并探讨了DK和TFC两种纳滤膜元件对结垢离子的去除效果。结果显示，填埋场渗滤液纳滤膜元件进水中Ca2+、Mg2+、SO2-4、胶状SiO2和可溶性SiO2含量均较高，是纳滤膜处理段的主要结垢组分。填埋场B相对新鲜的垃圾渗滤液比老龄渗滤液（填埋场A）中含有较多的Mg2+、Ca2+及可溶性SiO2。DK膜对Mg2+、Ca2+、SO2-4、总溶解性固体物质(TDS)等具有较好的去除效果，其去除率分别为TFC膜的3.2、2.3、1.3和1.8倍。此外，根据工程实践经验，推荐酸碱清洗法清洗纳滤膜元件。
Abstract:
To clarify the effect of different nanofiltration membranes on removal of scaling-forming ions from landfill leachate, characteristics of scaling-forming ion concentrations in the influent from landfill A and landfill B at different periods in nanofiltration membrane modules of the actual operation system were analyzed, and the removal performances of DK and TFC nanofiltration membrane modules on scale-forming ions were discussed.The contents of Ca2+, Mg2+, SO2-4, colloidal SiO2 and soluble SiO2 in the influent of the nanofiltration membrane were relatively high, which were the main scale-forming components in the nanofiltration membrane treatment. The relatively fresh landfill leachate in landfill B contained more Mg2+, Ca2+ ions and soluble SiO2 than the aged landfill leachate from landfill A. The DK membrane had a good removal performance of Mg2+, Ca2+, SO2-4 and TDS, and the removal efficiencies were 3.2 times, 2.3 times, 1.3 times and 1.8 times of the TFC membrane, respectively. In addition, acidbase cleaning method was recommended to clean the nanofiltration membrane modules according to engineering practice.

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更新日期/Last Update: 2021-12-01