Removal of metals and ammonia in constructed wetlands

Constructed wetlands have the potential to trap and remove metals contained in wastewater. Long-term removal is expected to occur by accumulation and burial in the plant detritus in a manner similar to the removal of phosphorus. A free water surface constructed wetlands has been in operation at the...

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Bibliographic Details
Published in:Water environment research 1997-03, Vol.69 (2), p.132-135
Main Authors: Crites, Ronald W., Dombeck, Glenn D., Watson, Rob C., Williams, Charles R.
Format: Article
Language:English
Subjects:
AGUAS RESIDUALES
AMMONIA
AMMONIAC
AMONIACO
Applied sciences
ARTIFICIAL WETLANDS
Biological and medical sciences
Biological treatment of waters
Biotechnology
CALIFORNIA
CALIFORNIE
Constructed wetlands
CONTROL DE LA CONTAMINACION
Copper
CYPERACEAE
EAU USEE
Environment and pollution
Exact sciences and technology
Freshwater
Fundamental and applied biological sciences. Psychology
Industrial applications and implications. Economical aspects
Lead
LUTTE ANTIPOLLUTION
METAL
METALES
METALS
Other wastewaters
Pollution
POLLUTION CONTROL
Research Papers
SCHOENOPLECTUS
SCHOENOPLECTUS ACUTUS
SOL DE TERRES HUMIDES
SUELO DE TIERRAS HUMEDAS
TERRE HUMIDE
TERTIARY TREATMENT
TIERRAS HUMEDAS
TRAITEMENT DES EAUX USEES
TRATAMIENTO DE AGUAS RESIDUALES
TYPHA
UPTAKE
Vegetation
WASTEWATER
WASTEWATER TREATMENT
Wastewaters
WATER QUALITY
Water treatment and pollution
WETLAND SOILS
WETLANDS
Zinc
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Description
Summary:Constructed wetlands have the potential to trap and remove metals contained in wastewater. Long-term removal is expected to occur by accumulation and burial in the plant detritus in a manner similar to the removal of phosphorus. A free water surface constructed wetlands has been in operation at the Sacramento Regional Wastewater Treatment Plant treating municipal secondary effluent since the spring of 1994. Data on removal of 13 metals and ammonia are presented for the operating period from July 1994 to December 1995. Significant removal of copper, lead, and zinc is indicated from preliminary results. Water quality profiles for copper, lead, nickel, and zinc are presented for a plug flow cell.
ISSN:1061-4303
1554-7531
DOI:10.2175/106143097X125272