Contaminant Removal Processes in Subsurface-Flow Constructed Wetlands: A Review

被引：350
|
作者：
Garcia, Joan [1 ]
Rousseau, Diederik P. L. [2 ]
Morato, Jordi
Lesage, Els
Matamoros, Victor
Bayona, Josep M.
机构：
[1] Univ Politecn Cataluna, Hydraul Maritime & Environm Engn Dept, Environm Engn Div, ES-08034 Barcelona, Spain
[2] UNESCO IHE Inst Water Educ, Dept Environm Resources, Delft, Netherlands
来源：
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY | 2010年 / 40卷 / 07期
关键词：
reed beds; granular medium; hydraulic loading rate; organic loading rate; WASTE-WATER-TREATMENT; ACID-MINE DRAINAGE; LINEAR ALKYLBENZENE SULFONATES; PHOSPHORUS RETENTION CAPACITY; BULRUSH SCIRPUS-VALIDUS; PERSONAL CARE PRODUCTS; HORIZONTAL FLOW; ORGANIC-MATTER; REED BEDS; PHRAGMITES-AUSTRALIS;
D O I：
10.1080/10643380802471076
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The main contaminant removal processes occurring in subsurface-flow constructed wetlands treating wastewater are reviewed. Redox conditions prevailing in the wetlands are analyzed and linked to contaminant removal mechanisms. The removal of organic matter and its accumulation in the granular medium of the wetlands are evaluated with regard to particulate and dissolved components and clogging processes. The main biological processes linked to organic matter transformationaerobic respiration, denitrification, acid fermentation, sulfate reduction, and methanogenesisare reviewed separately. The processes of removal of surfactants, pesticides and herbicides, emergent contaminants, nutrients, heavy metals and faecal organisms are analyzed. Advances in wetland modeling are presented as a powerful tool for understanding multiple interactions occurring in subsurface-flow constructed wetlands during the removal of contaminants.
引用
收藏
页码：561 / 661
页数：101
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