Evaluating the efficiency of electrochemical process in removing COD and NH4-N from landfill leachate

被引：25

作者：

Pirsaheb, M. ^{[1
]}

Azizi, E. ^{[1
]}

Almasi, A. ^{[2
]}

Soltanian, M. ^{[2
]}

Khosravi, T. ^{[3
]}

Ghayebzadeh, M. ^{[1
]}

Sharafi, K. ^{[3
,4
]}

机构：

[1] Kermanshah Univ Med Sci, Sch Publ Hlth, Environm Hlth Engn Dept, Res Ctr Environm Determinants Hlth, Kermanshah, Iran

[2] Kermanshah Univ Med Sci, Sch Publ Hlth, Environm Hlth Engn Dept, Hlth Res Ctr, Kermanshah, Iran

[3] Kermanshah Univ Med Sci, Environm Hlth Engn Dept, Kermanshah, Iran

[4] Univ Tehran Med Sci, Sch Publ Hlth, Dept Environm Hlth Engn, Tehran, Iran

来源：

DESALINATION AND WATER TREATMENT | 2016年 / 57卷 / 15期

关键词：

Electrocoagulation; Landfill leachate; COD; NH4-N; ELECTROCOAGULATION; OXIDATION; ALUMINUM; DYE; BEHAVIOR;

D O I：

10.1080/19443994.2015.1012560

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Landfilling leachate contains a high concentration of organic and inorganic pollutants. The present study was aimed to evaluate the efficiency of the electrocoagulation system in removing chemical oxygen demand (COD) and ammonia-nitrogen (NH4-N) from leachate. The paper investigated the factors affecting removal efficiency such as current density (187.5, 375, and 562.5 A/m(2)), electrode material (Al and Fe), and electrolysis time and pH of the solution (6.5 +/- 0. 2). The results indicated that, in optimum conditions, the highest COD and NH4-N removal efficiencies were 66 and 63%, respectively. According to the results, performance of the Al electrode was better than that of the Fe electrode in terms of COD and NH4-N removal. Therefore, the results showed that electrocoagulation can be applied for the leachate pretreatment as a feasible and reliable technique.

引用

页码：6644 / 6651

页数：8

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