Investigation of the electro-coagulation treatment process for the removal of total suspended solids and turbidity from municipal wastewater

Alaadin A. Bukhari

doi:10.1016/j.biortech.2007.03.015

Investigation of the electro-coagulation treatment process for the removal of total suspended solids and turbidity from municipal wastewater

Alaadin A. Bukhari^*

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Article › peer-review

185 Scopus citations

Abstract

In this work, raw municipal wastewater was electro-coagulated for the removal of total suspended solids (TSS), turbidity, and particulate BOD using stainless steel electrodes. The removal efficiency of TSS and turbidity is shown to depend on the amount of iron generated from the anode of the reactive electrode used in this study, when applying the lower currents of 0.05 A and 0.1 A. For such lower currents, the results suggested that the removal is consistent with charge neutralization coagulation mechanism. When applying higher currents of 0.2 A, 0.4 A, and 0.8 A, the results suggested that the dominant removal mechanism is sweep-floc coagulation as the generated soluble ferrous ions are converted to insoluble ferric ions due to oxidation with chlorine generated during the electrochemical process at the higher currents. The highest TSS removal efficiency of 95.4% occurred at a current of 0.8 A and contact time of 5 min. The effect of electro-coagulation on the removal of particulate BOD was shown to depend on the TSS removal efficiency.

Original language	English
Pages (from-to)	914-921
Number of pages	8
Journal	Bioresource Technology
Volume	99
Issue number	5
DOIs	https://doi.org/10.1016/j.biortech.2007.03.015
State	Published - Mar 2008

Bibliographical note

Funding Information:
The author thanks the Civil Engineering Department and the Research Institute, King Fahd University of Petroleum and Minerals, for the support they provided during this study. Also, the author would like to thank Mr. Mohammed Sajeed Farooqui for running the experiments and sample analysis.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation
SDG 11 Sustainable Cities and Communities

Keywords

Electro-coagulation processes
Electrochemical processes
Environmental engineering
Municipal wastewater

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

Access to Document

10.1016/j.biortech.2007.03.015

Cite this

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title = "Investigation of the electro-coagulation treatment process for the removal of total suspended solids and turbidity from municipal wastewater",

abstract = "In this work, raw municipal wastewater was electro-coagulated for the removal of total suspended solids (TSS), turbidity, and particulate BOD using stainless steel electrodes. The removal efficiency of TSS and turbidity is shown to depend on the amount of iron generated from the anode of the reactive electrode used in this study, when applying the lower currents of 0.05 A and 0.1 A. For such lower currents, the results suggested that the removal is consistent with charge neutralization coagulation mechanism. When applying higher currents of 0.2 A, 0.4 A, and 0.8 A, the results suggested that the dominant removal mechanism is sweep-floc coagulation as the generated soluble ferrous ions are converted to insoluble ferric ions due to oxidation with chlorine generated during the electrochemical process at the higher currents. The highest TSS removal efficiency of 95.4\% occurred at a current of 0.8 A and contact time of 5 min. The effect of electro-coagulation on the removal of particulate BOD was shown to depend on the TSS removal efficiency.",

keywords = "Electro-coagulation processes, Electrochemical processes, Environmental engineering, Municipal wastewater",

author = "Bukhari, \{Alaadin A.\}",

note = "Funding Information: The author thanks the Civil Engineering Department and the Research Institute, King Fahd University of Petroleum and Minerals, for the support they provided during this study. Also, the author would like to thank Mr. Mohammed Sajeed Farooqui for running the experiments and sample analysis.",

year = "2008",

month = mar,

doi = "10.1016/j.biortech.2007.03.015",

language = "English",

volume = "99",

pages = "914--921",

journal = "Bioresource Technology",

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TY - JOUR

T1 - Investigation of the electro-coagulation treatment process for the removal of total suspended solids and turbidity from municipal wastewater

AU - Bukhari, Alaadin A.

N1 - Funding Information: The author thanks the Civil Engineering Department and the Research Institute, King Fahd University of Petroleum and Minerals, for the support they provided during this study. Also, the author would like to thank Mr. Mohammed Sajeed Farooqui for running the experiments and sample analysis.

PY - 2008/3

Y1 - 2008/3

N2 - In this work, raw municipal wastewater was electro-coagulated for the removal of total suspended solids (TSS), turbidity, and particulate BOD using stainless steel electrodes. The removal efficiency of TSS and turbidity is shown to depend on the amount of iron generated from the anode of the reactive electrode used in this study, when applying the lower currents of 0.05 A and 0.1 A. For such lower currents, the results suggested that the removal is consistent with charge neutralization coagulation mechanism. When applying higher currents of 0.2 A, 0.4 A, and 0.8 A, the results suggested that the dominant removal mechanism is sweep-floc coagulation as the generated soluble ferrous ions are converted to insoluble ferric ions due to oxidation with chlorine generated during the electrochemical process at the higher currents. The highest TSS removal efficiency of 95.4% occurred at a current of 0.8 A and contact time of 5 min. The effect of electro-coagulation on the removal of particulate BOD was shown to depend on the TSS removal efficiency.

AB - In this work, raw municipal wastewater was electro-coagulated for the removal of total suspended solids (TSS), turbidity, and particulate BOD using stainless steel electrodes. The removal efficiency of TSS and turbidity is shown to depend on the amount of iron generated from the anode of the reactive electrode used in this study, when applying the lower currents of 0.05 A and 0.1 A. For such lower currents, the results suggested that the removal is consistent with charge neutralization coagulation mechanism. When applying higher currents of 0.2 A, 0.4 A, and 0.8 A, the results suggested that the dominant removal mechanism is sweep-floc coagulation as the generated soluble ferrous ions are converted to insoluble ferric ions due to oxidation with chlorine generated during the electrochemical process at the higher currents. The highest TSS removal efficiency of 95.4% occurred at a current of 0.8 A and contact time of 5 min. The effect of electro-coagulation on the removal of particulate BOD was shown to depend on the TSS removal efficiency.

KW - Electro-coagulation processes

KW - Electrochemical processes

KW - Environmental engineering

KW - Municipal wastewater

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DO - 10.1016/j.biortech.2007.03.015

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EP - 921

JO - Bioresource Technology

JF - Bioresource Technology

IS - 5

ER -

Investigation of the electro-coagulation treatment process for the removal of total suspended solids and turbidity from municipal wastewater

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

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Cite this