Removal of manganese(II) and iron(II) from synthetic groundwater using potassium permanganate

被引：28

作者：

Phatai, Piaw ^{[1
]}

Wittayakun, Jatuporn ^{[1
,2
]}

Chen, Wen-Hsiang ^{[3
]}

Futalan, Cybelle Morales ^{[4
]}

Grisdanurak, Nurak ^{[2
,5
]}

Kan, Chi-Chuan ^{[6
]}

机构：

[1] Suranaree Univ Technol, Inst Sci, Sch Chem, Mat Chem Res Grp, Nakhon Ratchasima 30000, Thailand

[2] Thammasat Univ, Natl Ctr Excellence Environm & Hazardous Waste Ma, Pathum Thani 10200, Thailand

[3] Natl Chung Hsing Univ, Dept Environm Engn, Taichung 40227, Taiwan

[4] Univ Philippines Diliman, Dept Environm Engn, Quezon City 1800, Philippines

[5] Thammasat Univ, Dept Chem Engn, Pathum Thani 12120, Thailand

[6] Chia Nan Univ Pharm & Sci, Inst Hot Spring Ind, Tainan 71710, Taiwan

来源：

DESALINATION AND WATER TREATMENT | 2014年 / 52卷 / 31-33期

关键词：

Oxidation; Groundwater; Iron; Manganese; Potassium permanganate; METAL MOBILITY; OXIDATION; ADSORPTION; KMNO4; TCE;

D O I：

10.1080/19443994.2013.819150

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The removal of Mn2+ and Fe2+ from synthetic groundwater via oxidation using potassium permanganate was investigated. Batch jar tests were carried out under a constant pH of 8.0, where the effect of parameters such as the oxidant dose, presence of co-ions (Ca2+, Mg2+) and alum addition on the removal of Mn2+ and Fe2+ was examined. The partial removal of Mn2+ using aeration in single and dual metal system was 30.6% and 37.2%, respectively. The oxidant dose of 0.603 mg/L KMnO4 was the minimum amount needed to reduce Mn2+ below its maximum contaminant level. The presence of Fe2+ improved the removal of Mn2+ due to the autocatalytic effect of hydrous manganese-iron oxide, where its presence was confirmed by digital microscopy and EDX. The presence of Ca2+ and Mg2+ as well as the alum addition after oxidation has a negative effect on the removal of Mn2+. The removal mechanism of Mn2+ and Fe2+ was a combination of oxidation and adsorption or co-precipitation between the hydrous oxide and the dissolved metal ions.

引用

页码：5942 / 5951

页数：10

共 24 条

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