An efficient wastewater treatment approach for a real woolen textile industry using a chemical assisted NF membrane process

Hassanzadeh, E; Farhadian, M; Razmjou, A; Askari, N

An efficient wastewater treatment approach for a real woolen textile industry using a chemical assisted NF membrane process

Hassanzadeh, E Farhadian, M Razmjou, A Askari, N

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Environmental Nanotechnology, Monitoring and Management, 2017, 8, pp. 92-96
Issue Date:: 2017-12-01

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Field	Value	Language
dc.contributor.author	Hassanzadeh, E
dc.contributor.author	Farhadian, M
dc.contributor.author	Razmjou, A
dc.contributor.author	Askari, N
dc.date.accessioned	2023-03-26T23:40:10Z
dc.date.available	2023-03-26T23:40:10Z
dc.date.issued	2017-12-01
dc.identifier.citation	Environmental Nanotechnology, Monitoring and Management, 2017, 8, pp. 92-96
dc.identifier.issn	2215-1532
dc.identifier.uri	http://hdl.handle.net/10453/168484
dc.description.abstract	Woolen textile industries produces a significant high contaminated wastewater streams which have raised environmental concerns as their turbidity (>40 NTU) and COD (>1500 mg/L) are very high. To address their issue, usually a high level of chemical treatment is utilized; however, the addition of such level of chemicals itself creates another issue such as high concentrated sludge. In this study, chemical pretreatment (FeSO4 as coagulant, 400–800 mg/L, pH 6–10,) experiments was employed to reduce COD and turbidity to maximum 200 mg/L and 25 NTU respectively. The chemically assisted nanofiltration (NF) process (operating conditions: 4–8 bar, COD of 50–200 mg/L and pH of 6–10) by using a commercial spiral wound polyamide nano filter (TFC) was used to treat a real woolen textile effluent. Response surface methodology (RSM) was employed to determine the effects of operating parameters. The results showed that the best conditions for the pretreatment process were pH of 8, FeSO4 of 600 mg/L. For the NF process, by increasing pH and pressure, removal efficiency of turbidity and COD increased up to 98%. However, by enhancing the color concentrations, the COD removal efficiency reduced to about 90%. The results demonstrated that NF process at optimum conditions and after chemical pretreatment has an effective efficiency for real textile wastewater treatment.
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Environmental Nanotechnology, Monitoring and Management
dc.relation.isbasedon	10.1016/j.enmm.2017.06.001
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	An efficient wastewater treatment approach for a real woolen textile industry using a chemical assisted NF membrane process
dc.type	Journal Article
utslib.citation.volume	8
pubs.organisational-group	/University of Technology Sydney
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
utslib.copyright.status	closed_access	*
dc.date.updated	2023-03-26T23:40:09Z
pubs.publication-status	Published
pubs.volume	8

Abstract:

Woolen textile industries produces a significant high contaminated wastewater streams which have raised environmental concerns as their turbidity (>40 NTU) and COD (>1500 mg/L) are very high. To address their issue, usually a high level of chemical treatment is utilized; however, the addition of such level of chemicals itself creates another issue such as high concentrated sludge. In this study, chemical pretreatment (FeSO4 as coagulant, 400–800 mg/L, pH 6–10,) experiments was employed to reduce COD and turbidity to maximum 200 mg/L and 25 NTU respectively. The chemically assisted nanofiltration (NF) process (operating conditions: 4–8 bar, COD of 50–200 mg/L and pH of 6–10) by using a commercial spiral wound polyamide nano filter (TFC) was used to treat a real woolen textile effluent. Response surface methodology (RSM) was employed to determine the effects of operating parameters. The results showed that the best conditions for the pretreatment process were pH of 8, FeSO4 of 600 mg/L. For the NF process, by increasing pH and pressure, removal efficiency of turbidity and COD increased up to 98%. However, by enhancing the color concentrations, the COD removal efficiency reduced to about 90%. The results demonstrated that NF process at optimum conditions and after chemical pretreatment has an effective efficiency for real textile wastewater treatment.

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http://hdl.handle.net/10453/168484