Chromium removal in constructed wetlands: A review

被引:69
作者
Sultana, Mar-Yam [1 ]
Akratos, Christos S. [1 ]
Pavlou, Stavros [2 ,3 ]
Vayenas, Dimitrios V. [1 ,2 ]
机构
[1] Univ Patras, Dept Environm & Nat Resources Management, GR-30100 Agrinion, Greece
[2] FORTH, Inst Chem Engn Sci, GR-26504 Patras, Greece
[3] Univ Patras, Dept Chem Engn, GR-26504 Patras, Greece
关键词
Chromium; Constructed wetlands; Vegetation; Microorganisms; Phytotoxicity; WASTE-WATER TREATMENT; BIOLOGICAL CR(VI) REMOVAL; HEXAVALENT CHROMIUM; AQUEOUS-SOLUTIONS; PHRAGMITES-AUSTRALIS; HEAVY-METALS; TOXIC METALS; TRACE-METALS; QUALITY IMPROVEMENT; TRIVALENT CHROMIUM;
D O I
10.1016/j.ibiod.2014.08.009
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The distribution, mobility and availability of metals in the environment depend not only on their total concentration but also on their formations and bounds with the soil. Hexavalent chromium is a very toxic, metal compound, frequently found in polluted industrial wastewaters, and causes serious environmental problems. The potential application of constructed wetlands in the treatment of chromium bearing wastewaters has been reported recently. This paper reviews research on constructed wetlands treating chromium polluted wastewaters, and focuses on several design and operational parameters. The review highlights the effect of vegetation type, hydraulic residence time and porous media type on wetland performance. Constructed wetlands have been proved to be rather efficient at treating chromium containing wastewaters. (C) 2014 Elsevier Ltd. All rights reserved.
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页码:181 / 190
页数:10
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