Ionic organic acetate-based fertilizers as draw solutions to relieve salt accumulation in forward osmosis membrane bioreactor

Wang, J; Li, D

Ionic organic acetate-based fertilizers as draw solutions to relieve salt accumulation in forward osmosis membrane bioreactor

Wang, J Li, D

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Publication Type:: Journal Article
Citation:: Chinese Journal of Environmental Engineering, 2019, 13, (12), pp. 2853-2862
Issue Date:: 2019-12-26

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Field	Value	Language
dc.contributor.author	Wang, J
dc.contributor.author	Li, D
dc.date.accessioned	2020-06-05T08:32:05Z
dc.date.available	2020-06-05T08:32:05Z
dc.date.issued	2019-12-26
dc.identifier.citation	Chinese Journal of Environmental Engineering, 2019, 13, (12), pp. 2853-2862
dc.identifier.issn	1673-9108
dc.identifier.uri	http://hdl.handle.net/10453/141141
dc.description.abstract	© 2019, Science Press. All right reserved. To solve the problem of salt accumulation in the forward osmosis membrane bioreactor, the performances of forward osmosis (FO) and osmosis membrane bio-reactor (OMBR) with three ionic organic draw solutes, ammonium acetate (NH4C2H3O2), sodium acetate (NaC2H3O2) and potassium acetate (KC2H3O2) were investigated in this study, which were also compared with those of FO and OMBR with three inorganic draw solutes: ammonium sulfate ((NH4)2SO4), sodium chloride (NaCl) and potassium chloride (KCl). Water flux and salt concentration were measured for comparing the performance of the different draw solutes, COD, ammonium and nitrate concentration were measured to evaluate the biodegradability in the bioreactor. The fouled membrane surface was analyzed by SEM. Results show that the average water fluxes of FO were 10.30, 11.07 and 12.73 L•(m2•h)-1 at 0.6 mol•L-1 concentration ammonium acetate, sodium acetate and potassium acetate, respectively, which were lower than those with the inorganic draw solutes. In OMBR process, the ionic organic draw solution could significantly reduce salt accumulation. In addition, when organic fertilizer based on acetate-based ions was used as the draw solution, the biological activity of microorganisms was higher than inorganic fertilizer draw solution, the former could lead to effective removal of organics and nutrients by OMBR though it was easier to form membrane fouling. This study can provide a reference for OMBR practical application.
dc.language	en
dc.relation.ispartof	Chinese Journal of Environmental Engineering
dc.relation.isbasedon	10.12030/j.cjee.201901030
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.title	Ionic organic acetate-based fertilizers as draw solutions to relieve salt accumulation in forward osmosis membrane bioreactor
dc.type	Journal Article
utslib.citation.volume	13
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
dc.date.updated	2020-06-05T08:32:02Z
pubs.issue	12
pubs.publication-status	Published
pubs.volume	13
utslib.start-page	2853
utslib.citation.issue	12

Abstract:

© 2019, Science Press. All right reserved. To solve the problem of salt accumulation in the forward osmosis membrane bioreactor, the performances of forward osmosis (FO) and osmosis membrane bio-reactor (OMBR) with three ionic organic draw solutes, ammonium acetate (NH4C2H3O2), sodium acetate (NaC2H3O2) and potassium acetate (KC2H3O2) were investigated in this study, which were also compared with those of FO and OMBR with three inorganic draw solutes: ammonium sulfate ((NH4)2SO4), sodium chloride (NaCl) and potassium chloride (KCl). Water flux and salt concentration were measured for comparing the performance of the different draw solutes, COD, ammonium and nitrate concentration were measured to evaluate the biodegradability in the bioreactor. The fouled membrane surface was analyzed by SEM. Results show that the average water fluxes of FO were 10.30, 11.07 and 12.73 L•(m2•h)-1 at 0.6 mol•L-1 concentration ammonium acetate, sodium acetate and potassium acetate, respectively, which were lower than those with the inorganic draw solutes. In OMBR process, the ionic organic draw solution could significantly reduce salt accumulation. In addition, when organic fertilizer based on acetate-based ions was used as the draw solution, the biological activity of microorganisms was higher than inorganic fertilizer draw solution, the former could lead to effective removal of organics and nutrients by OMBR though it was easier to form membrane fouling. This study can provide a reference for OMBR practical application.

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http://hdl.handle.net/10453/141141