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Separation and concentration of ultrafiltration permeate from landfill leachate effluent using polymeric membrane electrodialysis
Journal of Polymer Science ( IF 3.9 ) Pub Date : 2021-09-08 , DOI: 10.1002/pol.20210619 Rong Fu 1 , Haiyang Yan 1 , Yaru Zhu 2 , Huangying Wang 1 , Feipeng Lu 2 , Ya Su 2 , Wei Li 1 , Rongqiang Fu 3 , Zhaoming Liu 3 , Jin An 2 , Yaoming Wang 1
Journal of Polymer Science ( IF 3.9 ) Pub Date : 2021-09-08 , DOI: 10.1002/pol.20210619 Rong Fu 1 , Haiyang Yan 1 , Yaru Zhu 2 , Huangying Wang 1 , Feipeng Lu 2 , Ya Su 2 , Wei Li 1 , Rongqiang Fu 3 , Zhaoming Liu 3 , Jin An 2 , Yaoming Wang 1
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As society pays more and more attention to environmental protection, the treatment of highly polluted landfill leachate has become a vital issue for various countries. The four main types of landfill leachate treatment processes available today are physical, chemical, biological, and membrane treatment. The first three have low water recovery capacity and are prone to secondary contamination. Membrane processes using pressure-driven membranes hold great promise, but this technology is hampered by the membrane fouling caused by various components in the water. In this study, anion-selective electrodialysis (ASED) was integrated into a pressure-driven membrane process to treat waste leachate. Results showed that the optimal parameter for the ASED concentration process is CMV/ASA membranes with a voltage of 6 V and a volume ratio of concentrate to dilute of 1:20. ASED concentrate reached a conductivity of 133.3 mS/cm, retained 72.7% of sulfate ions and 88.4% of chemical oxygen demand. In addition, the ASED process was able to achieve a low-energy consumption of 1.85 kWh/m3. Therefore, the ASED progress has the potential to be integrated with current membrane processes for the treatment of landfill leachate.
中文翻译：
使用聚合物膜电渗析分离和浓缩垃圾渗滤液中的超滤渗透物
随着社会对环境保护的日益重视，高污染垃圾渗滤液的处理已成为各国面临的重要课题。目前可用的四种主要类型的垃圾渗滤液处理工艺是物理、化学、生物和膜处理。前三种水回收能力低，容易产生二次污染。使用压力驱动膜的膜工艺前景广阔，但该技术受到水中各种成分引起的膜污染的阻碍。在这项研究中，将阴离子选择性电渗析 (ASED) 集成到压力驱动的膜工艺中来处理废渗滤液。结果表明，ASED浓缩工艺的最佳参数是CMV/ASA膜，电压为6 V，浓液体积比为1:20。ASED 浓缩物的电导率达到 133.3 mS/cm，保留了 72.7% 的硫酸根离子和 88.4% 的化学需氧量。此外，ASED工艺能够实现1.85 kWh/m的低能耗3 . 因此，ASED 的进展有可能与当前用于处理垃圾渗滤液的膜工艺相结合。
更新日期：2021-09-08
中文翻译：
使用聚合物膜电渗析分离和浓缩垃圾渗滤液中的超滤渗透物
随着社会对环境保护的日益重视，高污染垃圾渗滤液的处理已成为各国面临的重要课题。目前可用的四种主要类型的垃圾渗滤液处理工艺是物理、化学、生物和膜处理。前三种水回收能力低，容易产生二次污染。使用压力驱动膜的膜工艺前景广阔，但该技术受到水中各种成分引起的膜污染的阻碍。在这项研究中，将阴离子选择性电渗析 (ASED) 集成到压力驱动的膜工艺中来处理废渗滤液。结果表明，ASED浓缩工艺的最佳参数是CMV/ASA膜，电压为6 V，浓液体积比为1:20。ASED 浓缩物的电导率达到 133.3 mS/cm，保留了 72.7% 的硫酸根离子和 88.4% 的化学需氧量。此外，ASED工艺能够实现1.85 kWh/m的低能耗3 . 因此，ASED 的进展有可能与当前用于处理垃圾渗滤液的膜工艺相结合。
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