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Membrane Bioreactor-Treated Domestic Wastewater for Sustainable Reuse in the Lake Victoria Region.
Integrated Environmental Assessment and Management ( IF 3.1 ) Pub Date : 2020-04-24 , DOI: 10.1002/ieam.4281
Ephraim Gukelberger 1, 2, 3 , Talha Atiye 1 , Julian A Mamo 4 , Kyra Hoevenaars 4 , Francesco Galiano 2 , Alberto Figoli 2 , Bartolo Gabriele 3 , Raffaella Mancuso 3 , Pauline Nakyewa 5 , Francis Akello 6 , Robert Otim 6 , Bwambale Mbilingi 6 , Susan C Adhiambo 7 , Daniel Lanta 8 , Mutambala Musambyah 8 , Jan Hoinkis 1
Affiliation  

Lake Victoria is a shared water resource between Kenya, Uganda, and Tanzania, which is the second largest freshwater lake in the world. It has long since suffered from the consequences of overexploitation of its resources, mainly fish stocks, and increasingly high pollution. The closure of 58% of the fish processing plants (FPPs) is attributed to the declining fish stocks due to overfishing and pollution in particular. The installation and operation of a pilot membrane bioreactor (MBR) in Kisumu, Kenya, adopts an integrated approach by providing an integral, sustainable, cost‐effective, and robust solution for water sanitation, which also meets the demand for clean water in the fish processing industry, aquaculture, and irrigation. The innovative system comprises a pilot MBR coupled with a recirculation aquaculture system (RAS). The RAS is able to recirculate 90% to 95% of its water volume; only the water loss through evaporation and drum filter back flushing has to be replaced. To compensate for this water deficit, the MBR treats domestic wastewater for further reuse. Additionally, excess purified water is used for irrigating a variety of local vegetables and could also be used in FPPs. The pilot‐scale MBR plant with around 6 m2 submerged commercial polyethersulfone (PES) membranes provides treated water in basic agreement with Food and Agriculture Organization (FAO) standards for irrigation and aquaculture, showing no adverse effects on tilapia fingerlings production. A novel membrane module with a low‐fouling coating is operating stably but has not yet shown improved performance compared to the commercial one. Integr Environ Assess Manag 2020;16:942–954. © 2020 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC)

中文翻译:

膜生物反应器处理的生活污水在维多利亚湖地区的可持续再利用。

维多利亚湖是肯尼亚,乌干达和坦桑尼亚之间的共享水资源,坦桑尼亚是世界上第二大淡水湖。长期以来,它一直遭受过度开发其资源(主要是鱼类资源)和日益严重的污染的后果。58%的鱼类加工厂的关闭是由于过度捕捞和特别是污染导致鱼类种群减少所致。在肯尼亚基苏木安装和运行中试膜生物反应器(MBR)采取了一种综合方法,为水卫生提供了一个完整,可持续,具有成本效益和强大的解决方案,也满足了鱼类对清洁水的需求加工业,水产养殖和灌溉。该创新系统包括与再循环水产养殖系统(RAS)耦合的MBR试点系统。RAS能够再循环其水量的90%至95%;仅需蒸发掉因蒸发和转鼓式过滤器反冲洗而造成的水分流失。为了弥补这种缺水,MBR处理生活废水以进一步回用。另外,过量的纯净水用于灌溉各种当地蔬菜,也可用于FPP。规模约6 m的MBR中试工厂2片淹没的商业聚醚砜(PES)膜提供的水与食品和农业组织(FAO)的灌溉和水产养殖标准基本吻合,对罗非鱼鱼种的生产没有不利影响。一种具有低污垢涂层的新型膜组件可稳定运行,但与商用组件相比,尚未表现出改进的性能。Integr环境评估管理2020; 16:942–954。©2020作者。Wiley Periodicals LLC代表环境毒理化学协会(SETAC)发布的《综合环境评估与管理
更新日期:2020-04-24
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