Treatment of landscape water (LSW) by electrocoagulation process

Haifeng Wang, JiaQian Jiang, Ran Xu, Fengting Li

Research output: Contribution to journalArticle

Abstract

The aim of this study was to utilize an aluminum electrocoagulation for the removal of algae and dissolved organic matter from landscape water, which was taken from an artifi cial lake and mixed with NaCl stock solutions to make its fi nal concentration in the range of 0.5-3 g/l. The removal effi ciency of chlorophyll-a, UV254 and turbidity was investigated under different current densities, charge loadings, conductivities (689–4684 µs cm-1) and pH values (3–11). The comparative removal performance together with sludge production by chemical coagulation and electrocoagulation were studied. With electrocoagulation, the optimal removal effi ciencies of chlorophyll-a and UV254 were 81% and 56%, respectively, and the residual turbidity and sludge production were less than 2.6 NTU and 5.1% of the total solution (after 10 min sedimentation), respectively. In comparison, for chemical coagulation the optimum removals of chlorophyll-a and UV254 were 75% and 46%, respectively, and the residual turbidity and the sludge production were 3.6 NTU and 9.3% of the total solution (after 10 min sedimentation), respectively. The results demonstrated that electrocoagulation was an effective process for the removal of algae and dissolved organic matter from landscape water and exhibited advantages to chemical coagulation.

Original languageEnglish
Pages (from-to)62-68
Number of pages7
JournalDesalination and Water Treatment
Volume37
Issue number1-3
DOIs
Publication statusPublished - 1 Jan 2012

Fingerprint

Chlorophyll
Turbidity
Coagulation
coagulation
turbidity
Water
chlorophyll a
sludge
Algae
Sedimentation
dissolved organic matter
water
Biological materials
alga
sedimentation
density current
Lakes
removal
Current density
conductivity

Keywords

  • chemical coagulation
  • aluminum electrode
  • algae

Cite this

Wang, Haifeng ; Jiang, JiaQian ; Xu, Ran ; Li, Fengting. / Treatment of landscape water (LSW) by electrocoagulation process. In: Desalination and Water Treatment. 2012 ; Vol. 37, No. 1-3. pp. 62-68.
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abstract = "The aim of this study was to utilize an aluminum electrocoagulation for the removal of algae and dissolved organic matter from landscape water, which was taken from an artifi cial lake and mixed with NaCl stock solutions to make its fi nal concentration in the range of 0.5-3 g/l. The removal effi ciency of chlorophyll-a, UV254 and turbidity was investigated under different current densities, charge loadings, conductivities (689–4684 µs cm-1) and pH values (3–11). The comparative removal performance together with sludge production by chemical coagulation and electrocoagulation were studied. With electrocoagulation, the optimal removal effi ciencies of chlorophyll-a and UV254 were 81{\%} and 56{\%}, respectively, and the residual turbidity and sludge production were less than 2.6 NTU and 5.1{\%} of the total solution (after 10 min sedimentation), respectively. In comparison, for chemical coagulation the optimum removals of chlorophyll-a and UV254 were 75{\%} and 46{\%}, respectively, and the residual turbidity and the sludge production were 3.6 NTU and 9.3{\%} of the total solution (after 10 min sedimentation), respectively. The results demonstrated that electrocoagulation was an effective process for the removal of algae and dissolved organic matter from landscape water and exhibited advantages to chemical coagulation.",
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Treatment of landscape water (LSW) by electrocoagulation process. / Wang, Haifeng; Jiang, JiaQian; Xu, Ran; Li, Fengting.

In: Desalination and Water Treatment, Vol. 37, No. 1-3, 01.01.2012, p. 62-68.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Treatment of landscape water (LSW) by electrocoagulation process

AU - Wang, Haifeng

AU - Jiang, JiaQian

AU - Xu, Ran

AU - Li, Fengting

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N2 - The aim of this study was to utilize an aluminum electrocoagulation for the removal of algae and dissolved organic matter from landscape water, which was taken from an artifi cial lake and mixed with NaCl stock solutions to make its fi nal concentration in the range of 0.5-3 g/l. The removal effi ciency of chlorophyll-a, UV254 and turbidity was investigated under different current densities, charge loadings, conductivities (689–4684 µs cm-1) and pH values (3–11). The comparative removal performance together with sludge production by chemical coagulation and electrocoagulation were studied. With electrocoagulation, the optimal removal effi ciencies of chlorophyll-a and UV254 were 81% and 56%, respectively, and the residual turbidity and sludge production were less than 2.6 NTU and 5.1% of the total solution (after 10 min sedimentation), respectively. In comparison, for chemical coagulation the optimum removals of chlorophyll-a and UV254 were 75% and 46%, respectively, and the residual turbidity and the sludge production were 3.6 NTU and 9.3% of the total solution (after 10 min sedimentation), respectively. The results demonstrated that electrocoagulation was an effective process for the removal of algae and dissolved organic matter from landscape water and exhibited advantages to chemical coagulation.

AB - The aim of this study was to utilize an aluminum electrocoagulation for the removal of algae and dissolved organic matter from landscape water, which was taken from an artifi cial lake and mixed with NaCl stock solutions to make its fi nal concentration in the range of 0.5-3 g/l. The removal effi ciency of chlorophyll-a, UV254 and turbidity was investigated under different current densities, charge loadings, conductivities (689–4684 µs cm-1) and pH values (3–11). The comparative removal performance together with sludge production by chemical coagulation and electrocoagulation were studied. With electrocoagulation, the optimal removal effi ciencies of chlorophyll-a and UV254 were 81% and 56%, respectively, and the residual turbidity and sludge production were less than 2.6 NTU and 5.1% of the total solution (after 10 min sedimentation), respectively. In comparison, for chemical coagulation the optimum removals of chlorophyll-a and UV254 were 75% and 46%, respectively, and the residual turbidity and the sludge production were 3.6 NTU and 9.3% of the total solution (after 10 min sedimentation), respectively. The results demonstrated that electrocoagulation was an effective process for the removal of algae and dissolved organic matter from landscape water and exhibited advantages to chemical coagulation.

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KW - aluminum electrode

KW - algae

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SN - 1944-3994

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