Journal
WATER RESEARCH
Volume 58, Issue -, Pages 179-197Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.watres.2014.03.045
Keywords
Draw solution; Energy generation; Forward osmosis; Hybrid systems; Membrane fouling; Wastewater treatment
Funding
- Dutch Ministry of Economic Affairs, Agriculture and Innovation (Agentschap NL) [IWA10003]
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Research in the field of Forward Osmosis (FO) membrane technology has grown significantly over the last 10 years, but its application in the scope of wastewater treatmenthas been slower. Drinkingwater is becoming an increasingly marginal resource. Substituting drinkingwater for alternate water sources, specifically for use in industrial processes, may alleviate the global water stress. FO has the potential to sustainably treat wastewater sources and produce high quality water. FO relies on the osmotic pressure difference across the membrane to extract clean water from the feed, however the FO step is still mostly perceived as a pre-treatment process. To prompt FO-wastewater feasibility, the focus lies with new membrane developments, draw solutions to enhance wastewater treatment and energy recovery, and operating conditions. Optimisation of these parameters are essential to mitigate fouling, decrease concentration polarisation and increase FO performance; issues all closely related to one another. This review attempts to define the steps still required for FO to reach full-scale potential in wastewater treatment and water reclamation by discussing current novelties, bottlenecks and future perspectives of FO technology in the wastewater sector. (C) 2014 Elsevier Ltd. All rights reserved.
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