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标题：Resource recovery from wastewater can be an application niche of microbial desalination cells
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作者：Fubin Liu ; Hanan Moustafa ; Mohammed Salah El-Din Hassouna 等
期刊名称：Environment International
印刷版ISSN：0160-4120
电子版ISSN：1873-6750
出版年度：2020
卷号：142
页码：1-7
DOI：10.1016/j.envint.2020.105855
语种：English
出版社：Pergamon
摘要：Graphical abstractDisplay OmittedHighlights•MDCs are being developed for simultaneous wastewater treatment and desalination.•Desalination requires co-location of wastewater with saline water.•Recovery of ionic resources from wastewater can be an application niche for MDCs.•Those resources include ammonium, phosphate, and volatile fatty acids.•MDC-based resource recovery requires lower energy input with further waste treatment.AbstractMicrobial desalination cells (MDCs) have been studied as an emerging technology to accomplish simultaneous wastewater treatment and saline water desalination. A good amount of effort has been invested to understand fundamental problems and develop functional systems of the MDC technology. However, a revisit of MDCs’ desalination function reveals that the unique requirements like co-location of wastewater and saline water will greatly limit the application of this technology. In addition, the relatively low desalination rate of MDCs will result in a large reactor size and thus higher capital cost. Because of the need for wastewater (as a substrate for electricity generation), the MDC technology may have a promising niche of application for resource recovery from wastewater. A proper design of MDCs will allow the current-driven separation of ammonia, phosphorus, and volatile fatty acids (VFAs) from wastewater for further recovery. Based on the literature data, we conduct a case study analysis of mass flow for MDC-based resource recovery and demonstrate the potential of this function. Resource recovery can be a new function of interest to MDCs and worth further exploration of its technical and economic feasibility.
关键词：Microbial desalination cell;Bioenergy;Resource recovery;Wastewater treatment;Nutrients