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AuthorHafiz M.A.
AuthorHawari A.H.
AuthorAltaee A.
Available date2020-04-01T06:54:47Z
Publication Date2019
Publication NameJournal of Water Process Engineering
ResourceScopus
ISSN22147144
URIhttp://dx.doi.org/10.1016/j.jwpe.2019.100975
URIhttp://hdl.handle.net/10576/13607
AbstractThis work investigates the application of a hybrid system that combines forward osmosis (FO) and reverse osmosis (RO) processes for the supply of a fertilizing solution that could be used directly for irrigation purposes. In the FO process the feed solution is treated sewage effluent (TSE) and two different types of draw solutions were investigated. The impact of the feed solution and the draw solution flowrates and the membrane orientation on the membrane flux were investigated in the forward osmosis process. RO was used for the regeneration of the draw solution. In the forward osmosis process it was found that the highest membrane flux was 13.2 LMH. The FO process had high rejection rates for total phosphorus and ammonium which were 99% and 97%, respectively. RO achieved 99% total salts rejection rate. Seawater RO (SW30HR) and brackish water RO (BW30LE) membranes were used for the regeneration of the draw solution. The specific power consumption for the regeneration of the draw solution was 2.58 kW h/m3 and 2.18 kW h/m3 for SW30HR and BW30LE membranes, respectively. The final product water had high quality in terms of total dissolved solids concentration but the concentration of phosphorus was slightly higher than recommended due to adding 0.1 M of diammonium phosphate in the draw solution. - 2019 Elsevier Ltd
SponsorThis project is supported by Qatar National Research Fund (QNRF) under Qatar Research Leadership Program - Graduate Sponsorship Research award -GSRA4-2-0402-17013-. The authors also wish to thank Qatar Works Authority (Ashghal) for the supply of the treated wastewater.
Languageen
PublisherElsevier Ltd
SubjectFertilizing solution
Forward osmosis
Irrigation water
Membrane flux
Reverse osmosis
Waste water treatment
TitleA hybrid forward osmosis/reverse osmosis process for the supply of fertilizing solution from treated wastewater
TypeArticle
Volume Number32
dc.accessType Abstract Only


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