Fenton/ozone-based oxidation and coagulation processes for removing metals (Cu, Ni)-EDTA from plating wastewater

Nguyen, MK; Tran, VS; Pham, TT; Pham, HG; Hoang, BL; Nguyen, TH; Nguyen, TH; Tran, TH; Ngo, HH

Fenton/ozone-based oxidation and coagulation processes for removing metals (Cu, Ni)-EDTA from plating wastewater

Nguyen, MK Tran, VS Pham, TT Pham, HG Hoang, BL Nguyen, TH Nguyen, TH Tran, TH Ngo, HH

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Journal of Water Process Engineering, 2021, 39, pp. 101836-101836
Issue Date:: 2021-02-01

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Field	Value	Language
dc.contributor.author	Nguyen, MK
dc.contributor.author	Tran, VS
dc.contributor.author	Pham, TT
dc.contributor.author	Pham, HG
dc.contributor.author	Hoang, BL
dc.contributor.author	Nguyen, TH
dc.contributor.author	Nguyen, TH
dc.contributor.author	Tran, TH
dc.contributor.author	Ngo, HH
dc.date.accessioned	2021-12-07T05:43:10Z
dc.date.available	2021-12-07T05:43:10Z
dc.date.issued	2021-02-01
dc.identifier.citation	Journal of Water Process Engineering, 2021, 39, pp. 101836-101836
dc.identifier.issn	2214-7144
dc.identifier.uri	http://hdl.handle.net/10453/152191
dc.description.abstract	Wastewater containing heavy metals has caused many serious problems to land and marine environments. These heavy metal-laden wastewaters containing organic complexing agents are the consequence of using large-scale industrial applications for dissolving metals. Ethylenediaminetetraacetate (EDTA) is a widely used complexing agent in plating, metal finishing and chemical cleaning industries. However, due to the dramatic increase in the solubility of metal ions, EDTA has negative impact on heavy metals removed in wastewaters by conventional precipitation processes. This study aims to find the optimal conditions of combined/hybrid process of advanced oxidation and coagulation to treat metals-EDTA containing Cu, Ni plating wastewater from an electroplating manufacturer in Vietnam. The effects of pH, H2O2 dose, Fe2+ dose, ozone, reaction time and poly acrylic acid (PAA) dose were investigated. Results indicated that the 3-stage treatment process at the optimal conditions could remove 99.7 % of Ni and 99.72 % of Cu. The effluent of wastewater after the whole treatment process met the Vietnamese national regulation on industrial wastewater (QCVN 40:2011/BTNMT) for NH4+, Cu and Ni at column A and COD at column B. In short, the combined advanced oxidation processes and coagulation/flocculation could successfully be applied for plating wastewater treatment.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Journal of Water Process Engineering
dc.relation.isbasedon	10.1016/j.jwpe.2020.101836
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	0905 Civil Engineering, 0907 Environmental Engineering
dc.title	Fenton/ozone-based oxidation and coagulation processes for removing metals (Cu, Ni)-EDTA from plating wastewater
dc.type	Journal Article
utslib.citation.volume	39
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
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
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2023-02-28T00:00:00+1000Z
dc.date.updated	2021-12-07T05:43:09Z
pubs.publication-status	Published
pubs.volume	39

Abstract:

Wastewater containing heavy metals has caused many serious problems to land and marine environments. These heavy metal-laden wastewaters containing organic complexing agents are the consequence of using large-scale industrial applications for dissolving metals. Ethylenediaminetetraacetate (EDTA) is a widely used complexing agent in plating, metal finishing and chemical cleaning industries. However, due to the dramatic increase in the solubility of metal ions, EDTA has negative impact on heavy metals removed in wastewaters by conventional precipitation processes. This study aims to find the optimal conditions of combined/hybrid process of advanced oxidation and coagulation to treat metals-EDTA containing Cu, Ni plating wastewater from an electroplating manufacturer in Vietnam. The effects of pH, H2O2 dose, Fe2+ dose, ozone, reaction time and poly acrylic acid (PAA) dose were investigated. Results indicated that the 3-stage treatment process at the optimal conditions could remove 99.7 % of Ni and 99.72 % of Cu. The effluent of wastewater after the whole treatment process met the Vietnamese national regulation on industrial wastewater (QCVN 40:2011/BTNMT) for NH4+, Cu and Ni at column A and COD at column B. In short, the combined advanced oxidation processes and coagulation/flocculation could successfully be applied for plating wastewater treatment.

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http://hdl.handle.net/10453/152191