文献类型：期刊文献

英文题名：Mitigation of fouling problem and optimization of treatment effect in the polyvinylidene fluoride (PVDF) based electrochemical membrane bioreactor (EMBR)

作者：Mao, Zhongyuan[1];Liu, Hongju[1];Niu, Bihui[1];Bhagat, Waheed Ali[1];Fan, Wenhong[1];Liang, Dawei[1];Yang, Linyan[2];Zhao, Qian[3];Meng, Shujuan[1]

机构：[1]Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China;[2]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China;[3]Shandong Jianzhu Univ, Sch Municipal & Environm Engn, 1000 Fengming Rd, Jinan 250101, Peoples R China

年份：2024

卷号：336

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20240215373159);WOS:【SCI-EXPANDED(收录号:WOS:001163549600001)】；

基金：Acknowledgements The authors acknowledge the financial support from the National Natural Science Foundation of China [No. 52270019] and the Natural Science Foundation of Beijing Municipality [No. 8222065] .

语种：英文

外文关键词：Electrochemical membrane bioreactor; Fouling control; Operation parameters; Effluent quality

摘要：The hydrophobic polyvinylidene fluoride (PVDF) membrane is one of the most widely used membrane material in the treatment of domestic sewage, while it still endures the fouling problem. Many studies have focused on the fouling control, among which the electrochemical membrane bioreactor (EMBR) is promising because of its chemical -free nature, but the specific influence of applied electric field on the mitigation of membrane fouling and the treatment effect are unclear and need further exploration. In this work, the influence and interaction of operation parameters (operation voltage, electrode spacing, power -on mode, and hydraulic retention time) on fouling development and pollutants removals in a PVDF based EMBR were carefully explored for the optimal operating conditions. Results showed that the run time of EMBR system under optimal conditions was 23.4 % longer than that of the MBR system without a weak electric field, indicating that the membrane fouling problem was well alleviated. In addition, the effluent quality of EMBR was also improved than that treated by the MBR system. The removal rates of chemical oxygen demand, ammonia nitrogen, total phosphorus, and total nitrogen were increased by 2.25 %, 2.64 %, 9.02 %, and 12.1 %, respectively, revealing the improvement of this EMBR system in sewage treatment. This work shows that introduction of a weak electric field in MBR system not only effectively controls membrane fouling, but also increases the effluent quality, and thus endows EMBR as a candidate for sustainable and green technique in sewage treatment.