Electrokinetic Remediation of Manganese and Ammonia Nitrogen from Electrolytic Manganese Residue

Overview

Journal Environ Sci Pollut Res Int

Publisher Springer

Specialties Environmental Health
Toxicology

Date 2015 Jun 12

PMID 26062467

Citations 3

Authors

Jiancheng Shu

Renlong Liu

Zuohua Liu

Jun Du

Changyuan Tao

Affiliations

Soon will be listed here.

Abstract

Electrolytic manganese residue (EMR) is a solid waste found in filters after sulphuric acid leaching of manganese carbonate ore, which mainly contains manganese and ammonia nitrogen and seriously damages the ecological environment. This work demonstrated the use of electrokinetic (EK) remediation to remove ammonia nitrogen and manganese from EMR. The transport behavior of manganese and ammonia nitrogen from EMR during electrokinetics, Mn fractionation before and after EK treatment, the relationship between Mn fractionation and transport behavior, as well as the effects of electrolyte and pretreatment solutions on removal efficiency and energy consumption were investigated. The results indicated that the use of H2SO4 and Na2SO4 as electrolytes and pretreatment of EMR with citric acid and KCl can reduce energy consumption, and the removal efficiencies of manganese and ammonia nitrogen were 27.5 and 94.1 %, respectively. In these systems, electromigration and electroosmosis were the main mechanisms of manganese and ammonia nitrogen transport. Moreover, ammonia nitrogen in EMR reached the regulated level, and the concentration of manganese in EMR could be reduced from 455 to 37 mg/L. In general, the electrokinetic remediation of EMR is a promising technology in the future.

Citing Articles

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Gidudu B, Chirwa E Molecules. 2022; 27(21).

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Effect of Electrolytic Manganese Residue in Fly Ash-Based Cementitious Material: Hydration Behavior and Microstructure.

Wang Y, Zhang N, Ren Y, Xu Y, Liu X Materials (Basel). 2021; 14(22).

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Electrokinetic remediation of uranium(VI)-contaminated red soil using composite electrolyte of citric acid and ferric chloride.

Xiao J, Zhou S, Chu L, Liu Y, Li J, Zhang J Environ Sci Pollut Res Int. 2019; 27(4):4478-4488.

PMID: 31832950 DOI: 10.1007/s11356-019-06990-2.

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