Electrolyte conditioning-enhanced electrokinetic remediation of arsenic-contaminated mine tailing

Kitae Baek; Do Hyung Kim; Sung Woo Park; Byung Gon Ryu; Tserennyam Bajargal; Jung Seok Yang

doi:10.1016/j.jhazmat.2008.03.127

Electrolyte conditioning-enhanced electrokinetic remediation of arsenic-contaminated mine tailing

Kitae Baek^*
, Do Hyung Kim
, Sung Woo Park
, Byung Gon Ryu
, Tserennyam Bajargal
, Jung Seok Yang

^*Corresponding author for this work

Environmental Engineering

Kumoh National Institute of Technology
Korea Institute of Science and Technology

Research output: Contribution to journal › Journal article › peer-review

111 Scopus citations

Abstract

Feasibility of electrolyte conditioning with strong acidic or alkaline solution on electrokinetic remediation of arsenic-contaminated mine tailing was investigated in the laboratory. The mine tailing contained calcium oxide of more than 50%. At alkaline condition, arsenic was precipitated with calcium, and formed calcium arsenate which is very stable solid. Catholyte conditioning with strong acidic solution and anolyte conditioning with strong alkaline solution showed similar efficiency to remove arsenic. At 4 mA cm^-2 of current density, the removal efficiency of arsenic was 62% after 28 days operation with catholyte conditioning with 0.1 M nitric acid.

Original language	English
Pages (from-to)	457-462
Number of pages	6
Journal	Journal of Hazardous Materials
Volume	161
Issue number	1
DOIs	https://doi.org/10.1016/j.jhazmat.2008.03.127
State	Published - 2009.01.15

Keywords

Anolyte conditioning
Arsenic remediation
Catholyte conditioning
Enhanced electrokinetics
Mine tailing

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10.1016/j.jhazmat.2008.03.127

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title = "Electrolyte conditioning-enhanced electrokinetic remediation of arsenic-contaminated mine tailing",

abstract = "Feasibility of electrolyte conditioning with strong acidic or alkaline solution on electrokinetic remediation of arsenic-contaminated mine tailing was investigated in the laboratory. The mine tailing contained calcium oxide of more than 50\%. At alkaline condition, arsenic was precipitated with calcium, and formed calcium arsenate which is very stable solid. Catholyte conditioning with strong acidic solution and anolyte conditioning with strong alkaline solution showed similar efficiency to remove arsenic. At 4 mA cm-2 of current density, the removal efficiency of arsenic was 62\% after 28 days operation with catholyte conditioning with 0.1 M nitric acid.",

keywords = "Anolyte conditioning, Arsenic remediation, Catholyte conditioning, Enhanced electrokinetics, Mine tailing",

author = "Kitae Baek and Kim, \{Do Hyung\} and Park, \{Sung Woo\} and Ryu, \{Byung Gon\} and Tserennyam Bajargal and Yang, \{Jung Seok\}",

year = "2009",

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doi = "10.1016/j.jhazmat.2008.03.127",

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T1 - Electrolyte conditioning-enhanced electrokinetic remediation of arsenic-contaminated mine tailing

AU - Baek, Kitae

AU - Kim, Do Hyung

AU - Park, Sung Woo

AU - Ryu, Byung Gon

AU - Bajargal, Tserennyam

AU - Yang, Jung Seok

PY - 2009/1/15

Y1 - 2009/1/15

N2 - Feasibility of electrolyte conditioning with strong acidic or alkaline solution on electrokinetic remediation of arsenic-contaminated mine tailing was investigated in the laboratory. The mine tailing contained calcium oxide of more than 50%. At alkaline condition, arsenic was precipitated with calcium, and formed calcium arsenate which is very stable solid. Catholyte conditioning with strong acidic solution and anolyte conditioning with strong alkaline solution showed similar efficiency to remove arsenic. At 4 mA cm-2 of current density, the removal efficiency of arsenic was 62% after 28 days operation with catholyte conditioning with 0.1 M nitric acid.

AB - Feasibility of electrolyte conditioning with strong acidic or alkaline solution on electrokinetic remediation of arsenic-contaminated mine tailing was investigated in the laboratory. The mine tailing contained calcium oxide of more than 50%. At alkaline condition, arsenic was precipitated with calcium, and formed calcium arsenate which is very stable solid. Catholyte conditioning with strong acidic solution and anolyte conditioning with strong alkaline solution showed similar efficiency to remove arsenic. At 4 mA cm-2 of current density, the removal efficiency of arsenic was 62% after 28 days operation with catholyte conditioning with 0.1 M nitric acid.

KW - Anolyte conditioning

KW - Arsenic remediation

KW - Catholyte conditioning

KW - Enhanced electrokinetics

KW - Mine tailing

UR - https://www.scopus.com/pages/publications/56149094290

U2 - 10.1016/j.jhazmat.2008.03.127

DO - 10.1016/j.jhazmat.2008.03.127

M3 - Journal article

C2 - 18479814

AN - SCOPUS:56149094290

SN - 0304-3894

VL - 161

SP - 457

EP - 462

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

IS - 1

ER -

Electrolyte conditioning-enhanced electrokinetic remediation of arsenic-contaminated mine tailing

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Keywords

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