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Contaminant removal processes in subsurface-flow constructed wetlands: a review

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Abstract
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.
Keywords
reed beds, granular medium, HORIZONTAL FLOW, TREATMENT REED BEDS, HEAVY-METAL REMOVAL, PERSONAL CARE PRODUCTS, CHEMICAL OXYGEN-DEMAND, BULRUSH SCIRPUS-VALIDUS, PHOSPHORUS RETENTION CAPACITY, LINEAR ALKYLBENZENE SULFONATES, ACID-MINE DRAINAGE, WASTE-WATER-TREATMENT, organic loading rate, hydraulic loading rate

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Citation

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MLA
García, Joan, Diederik Rousseau, Jordi Morató, et al. “Contaminant Removal Processes in Subsurface-flow Constructed Wetlands: a Review.” CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY 40.7 (2010): 561–661. Print.
APA
García, J., Rousseau, D., Morató, J., Lesage, E., Matamoros, V., & Bayona, J. M. (2010). Contaminant removal processes in subsurface-flow constructed wetlands: a review. CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 40(7), 561–661.
Chicago author-date
García, Joan, Diederik Rousseau, Jordi Morató, Els Lesage, Victor Matamoros, and Josep M Bayona. 2010. “Contaminant Removal Processes in Subsurface-flow Constructed Wetlands: a Review.” Critical Reviews in Environmental Science and Technology 40 (7): 561–661.
Chicago author-date (all authors)
García, Joan, Diederik Rousseau, Jordi Morató, Els Lesage, Victor Matamoros, and Josep M Bayona. 2010. “Contaminant Removal Processes in Subsurface-flow Constructed Wetlands: a Review.” Critical Reviews in Environmental Science and Technology 40 (7): 561–661.
Vancouver
1.
García J, Rousseau D, Morató J, Lesage E, Matamoros V, Bayona JM. Contaminant removal processes in subsurface-flow constructed wetlands: a review. CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY. 2010;40(7):561–661.
IEEE
[1]
J. García, D. Rousseau, J. Morató, E. Lesage, V. Matamoros, and J. M. Bayona, “Contaminant removal processes in subsurface-flow constructed wetlands: a review,” CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, vol. 40, no. 7, pp. 561–661, 2010.
@article{3239789,
  abstract     = {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.},
  author       = {García, Joan and Rousseau, Diederik and Morató, Jordi and Lesage, Els and Matamoros, Victor and Bayona, Josep M},
  issn         = {1064-3389},
  journal      = {CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY},
  keywords     = {reed beds,granular medium,HORIZONTAL FLOW,TREATMENT REED BEDS,HEAVY-METAL REMOVAL,PERSONAL CARE PRODUCTS,CHEMICAL OXYGEN-DEMAND,BULRUSH SCIRPUS-VALIDUS,PHOSPHORUS RETENTION CAPACITY,LINEAR ALKYLBENZENE SULFONATES,ACID-MINE DRAINAGE,WASTE-WATER-TREATMENT,organic loading rate,hydraulic loading rate},
  language     = {eng},
  number       = {7},
  pages        = {561--661},
  title        = {Contaminant removal processes in subsurface-flow constructed wetlands: a review},
  url          = {http://dx.doi.org/10.1080/10643380802471076},
  volume       = {40},
  year         = {2010},
}

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