Evaluating the feasibility of pyrophyllite-based ceramic membranes for treating domestic wastewater in anaerobic ceramic membrane bioreactors
Evaluating the feasibility of pyrophyllite-based ceramic membranes for treating domestic wastewater in anaerobic ceramic membrane bioreactors
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DOI：
10.1016/j.cej.2017.07.080
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发表时间：
2017-11-15
影响因子：
15.1
通讯作者：
Park, Chanhyuk
中科院分区：
文献类型：
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作者：
Jeong, Yeongmi;Cho, Kyungjin;Park, Chanhyuk
本研究以厌氧陶瓷膜生物反应器（AnCMBR）处理生活污水为研究对象，旨在提高厌氧陶瓷膜生物反应器的能量回收效率。为此，天然基陶瓷的性能（即，叶蜡石基）膜的过滤和处理性能进行了评价。92.9+/- 5.5%的化学需氧量（COD）去除率和稳定的甲烷产量成功地实现了在实验室规模的AnCMBR，同时保持了稍长的水力停留时间（HRT）。与商品化陶瓷膜的对比过滤实验表明，叶蜡石基膜分离AnCMBR在长HRT下处理废水是可行的。然而，短HRT操作导致大量的污泥冲洗。AnCMBR技术在成本效益陶瓷膜开发、增加通量和恶劣环境条件方面的未来改进将使AnCMBR与厌氧膜生物反应器（AnMBR）技术竞争。(C)2017 Elsevier B. V.版权所有。
This study laid great emphasis on anaerobic ceramic membrane bioreactor (AnCMBR) treatment of domestic wastewater for facile and enhanced energy recovery. To this end, the performance of the natural-based ceramic (i.e., pyrophyllite-based) membranes was mainly explored in this study by evaluating filtration and treatment performances. 92.9 +/- 5.5% chemical oxygen demand (COD) removal and stable methane production were successfully achieved in a bench-scale AnCMBR while maintaining a slightly long hydraulic retention time (HRT). Comparative filtration experiments with commercialized ceramic membranes suggested that the pyrophyllite-based membrane separation in AnCMBR treatment of wastewater at long HRT is feasible. However, short HRT operations resulted in substantial levels of sludge washout. Future improvements of AnCMBR technology in cost-effective ceramic membrane development, increased flux, and harsh environmental conditions would make AnCMBR competitive with anaerobic membrane bioreactor (AnMBR) technology. (C) 2017 Elsevier B.V. All rights reserved.