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http://dx.doi.org/10.14478/ace.2019.1107

Evaluating the Performance of Blended Fertilizer Draw Solution in Reuse of Sewage Water Using Forward Osmosis  

Kim, Seung-Geon (Department of Chemical and Biological Engineering, Jeju National University)
Lee, Ho-Won (Department of Chemical and Biological Engineering, Jeju National University)
Publication Information
Applied Chemistry for Engineering / v.31, no.1, 2020 , pp. 90-96 More about this Journal
Abstract
This paper aims to reuse sewage by a forward osmosis using a blended fertilizer as a draw solution. This work deals with the primary sedimentation basin influent, effluent, and secondary sedimentation basin effluent from J sewage treatment plant. The average permeate water flux was higher in the order of the blend of KCl and NH4Cl > KCl and NH4H2PO4 > KCl and (NH4)2HPO4, and the reverse solute flux was lower in the order of the blend of KCl and NH4H2PO4 < KCl and NH4Cl < KCl and (NH4)2HPO4. Regardless of the blended fertilizer, the permeate water flux of the effluent from the secondary sedimentation basin was the highest. The blended fertilizer of KCl and NH4H2PO4 was found to be most useful for the reuse of sewage because it contains nitrogen, phosphorus and potassium, which are the major components of a fertilizer, and has a low reverse solute flux. When the blend of KCl and NH4H2PO4 was used as a draw solution, the average permeate water and reverse solute flux for the secondary sedimentation basin effluent were 12.14 L/㎡hr and 0.012 mol/㎡s, respectively.
Keywords
Blended fertilizer; Forward osmosis; Water reuse; Sewage;
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Times Cited By KSCI : 2  (Citation Analysis)
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