Influences of operational parameters on phosphorus removal in batch and continuous electrocoagulation process performance

Nguyen, DD; Yoon, YS; Bui, XT; Kim, SS; Chang, SW; Guo, W; Ngo, HH

Influences of operational parameters on phosphorus removal in batch and continuous electrocoagulation process performance

Nguyen, DD Yoon, YS Bui, XT Kim, SS Chang, SW Guo, W

Ngo, HH

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Publication Type:: Journal Article
Citation:: Environmental Science and Pollution Research, 2017, 24 (32), pp. 25441 - 25451
Issue Date:: 2017-11-01

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Field	Value	Language
dc.contributor.author	Nguyen, DD	en_US
dc.contributor.author	Yoon, YS	en_US
dc.contributor.author	Bui, XT	en_US
dc.contributor.author	Kim, SS	en_US
dc.contributor.author	Chang, SW	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.date.available	2020-05-25T19:04:34Z
dc.date.issued	2017-11-01	en_US
dc.identifier.citation	Environmental Science and Pollution Research, 2017, 24 (32), pp. 25441 - 25451	en_US
dc.identifier.issn	0944-1344	en_US
dc.identifier.uri	http://hdl.handle.net/10453/121661
dc.description.abstract	© 2017, Springer-Verlag GmbH Germany. Performance of an electrocoagulation (EC) process in batch and continuous operating modes was thoroughly investigated and evaluated for enhancing wastewater phosphorus removal under various operating conditions, individually or combined with initial phosphorus concentration, wastewater conductivity, current density, and electrolysis times. The results revealed excellent phosphorus removal (72.7–100%) for both processes within 3–6 min of electrolysis, with relatively low energy requirements, i.e., less than 0.5 kWh/m3 for treated wastewater. However, the removal efficiency of phosphorus in the continuous EC operation mode was better than that in batch mode within the scope of the study. Additionally, the rate and efficiency of phosphorus removal strongly depended on operational parameters, including wastewater conductivity, initial phosphorus concentration, current density, and electrolysis time. Based on experimental data, statistical model verification of the response surface methodology (RSM) (multiple factor optimization) was also established to provide further insights and accurately describe the interactive relationship between the process variables, thus optimizing the EC process performance. The EC process using iron electrodes is promising for improving wastewater phosphorus removal efficiency, and RSM can be a sustainable tool for predicting the performance of the EC process and explaining the influence of the process variables.	en_US
dc.relation.ispartof	Environmental Science and Pollution Research	en_US
dc.relation.isbasedon	10.1007/s11356-017-0180-2	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.subject.mesh	Phosphorus	en_US
dc.subject.mesh	Water Pollutants, Chemical	en_US
dc.subject.mesh	Waste Disposal, Fluid	en_US
dc.subject.mesh	Electrolysis	en_US
dc.subject.mesh	Waste Water	en_US
dc.title	Influences of operational parameters on phosphorus removal in batch and continuous electrocoagulation process performance	en_US
dc.type	Journal Article
utslib.citation.volume	32	en_US
utslib.citation.volume	24	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	05 Environmental Sciences	en_US
utslib.for	06 Biological Sciences	en_US
pubs.embargo.period	Not known	en_US
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
pubs.issue	32	en_US
pubs.publication-status	Published	en_US
pubs.volume	24	en_US

Abstract:

© 2017, Springer-Verlag GmbH Germany. Performance of an electrocoagulation (EC) process in batch and continuous operating modes was thoroughly investigated and evaluated for enhancing wastewater phosphorus removal under various operating conditions, individually or combined with initial phosphorus concentration, wastewater conductivity, current density, and electrolysis times. The results revealed excellent phosphorus removal (72.7–100%) for both processes within 3–6 min of electrolysis, with relatively low energy requirements, i.e., less than 0.5 kWh/m3 for treated wastewater. However, the removal efficiency of phosphorus in the continuous EC operation mode was better than that in batch mode within the scope of the study. Additionally, the rate and efficiency of phosphorus removal strongly depended on operational parameters, including wastewater conductivity, initial phosphorus concentration, current density, and electrolysis time. Based on experimental data, statistical model verification of the response surface methodology (RSM) (multiple factor optimization) was also established to provide further insights and accurately describe the interactive relationship between the process variables, thus optimizing the EC process performance. The EC process using iron electrodes is promising for improving wastewater phosphorus removal efficiency, and RSM can be a sustainable tool for predicting the performance of the EC process and explaining the influence of the process variables.

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http://hdl.handle.net/10453/121661