use of constructed wetlands for treating industrial effluent (textiles dyes)

Data on the ability of constructed wetlands to treat industrial wastewater containing priority pollutants such as phenols and cresols are reviewed. The processes involved included bacterial absorption and breakdown, chemical oxidation, adsorption on the bed matrix and sedimentation. Preliminary tria...

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Bibliographic Details
Published in:Water science and technology 1994-01, Vol.29 (4), p.227-232
Main Authors: Davies, T.H, Cottingham, P.D
Format: Article
Language:English
Subjects:
Advection
Artificial wetlands
Bacteria
biodegradation
biological treatment
Breakdown
constructed wetlands
Cresols
Dyeing
Dyes
Effluent treatment
Gravel
Industrial effluents
Industrial wastes
Industrial wastewater
Influents
Oxidation
Phenols
Phragmites
Phragmites australis
Pollutants
Reed beds
Reedbeds
Retention time
Sedimentation
textile industry
Textile industry wastewaters
Wastewater
Wastewater treatment
Wetlands
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Summary:Data on the ability of constructed wetlands to treat industrial wastewater containing priority pollutants such as phenols and cresols are reviewed. The processes involved included bacterial absorption and breakdown, chemical oxidation, adsorption on the bed matrix and sedimentation. Preliminary trials were conducted to determine the ability of wetland systems to treat textile dyeing and processing water. A horizontal-flow gravel reed bed in Melbourne was used for the trials. Satisfactory breakdown of visible dye substances was achieved. Rapid removal occurred in the first third of the bed. This was thought to be facilitated by the presence of settled solids and associated bacteria in the first part of the bed.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.1994.0197