Electrokinetic remediation of manganese and zinc in copper mine tailings

被引：35

作者：

Ortiz-Soto, Rodrigo ^{[1
,2
]}

Leal, Daniela ^{[1
]}

Gutierrez, Claudia ^{[1
]}

Aracena, Alvaro ^{[2
]}

Rojo, Adrian ^{[1
]}

Hansen, Henrik K. ^{[1
]}

机构：

[1] Univ Tecn Federico Santa Maria, Dept Ingn Quim & Ambiental, Valparaiso, Chile

[2] Pontificia Univ Catolica Valparaiso, Escuela Ingn Quim, Valparaiso, Chile

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2019年 / 365卷

关键词：

Electric field; Soil remediation; Electrokinetic remediation; Mine tailings; Heavy metal removal; SOIL REMEDIATION; HEAVY-METALS; REMOVAL; FIELD; CU; ELECTROREMEDIATION; TECHNOLOGIES; SCALE; ZN; PB;

D O I：

10.1016/j.jhazmat.2018.11.048

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The scope of this work is to determine the effect of initial acidity and electric field intensity on the Electrokinetic Remediation of manganese and zinc from mine tailings from a Chilean copper mine. To achieve this objective, experiments were carried out focusing on the effect of the applied electric field (1 and 2 V cm(-1)), the H2SO4 concentration during pretreatment (1 and 2 mol L-1) and the interaction between these factors in manganese and zinc concentration. From the obtained results, manganese and zinc can be removed from the analyzed tailings, with the maximum net removal 31.88% and 17.95%, respectively. The enhancement of electromigration was proven by an Analysis of Variance with a significance level of 10% for the soluble and total metal concentration in the cathodic zone, where total concentration was increased to 24% and 11% for zinc and manganese, respectively.

引用

页码：905 / 911

页数：7

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