Constructed wetlands to treat wastewater from dairy and swine operations: a review

Animal wastewater can be a major contributor to the cultural eutrophication of surface waters. Constructed wetlands are under study as a best management practice to treat animal wastewater from dairy and swine operations. Preliminary results are promising when wetlands are a component of a farm-wide...

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Bibliographic Details
Published in:Agriculture, Ecosystems and Environment Ecosystems and Environment, 1996-07, Vol.58 (2), p.97-114
Main Author: Cronk, Julie K.
Format: Article
Language:English
Subjects:
AGUAS RESIDUALES
Animal wastewater treatment
Best management practice
BOVIN LAITIER
CERDO
Constructed wetlands
DAIRY CATTLE
Dairy parlor effluent
EAU USEE
GANADO DE LECHE
GESTION
MANAGEMENT
PORCIN
SWINE
Swine wastewater management
TERRE HUMIDE
TIERRAS HUMEDAS
TRAITEMENT DES EAUX USEES
TRATAMIENTO DE AGUAS RESIDUALES
Waste management system
WASTEWATER
WASTEWATER TREATMENT
WETLANDS
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Summary:Animal wastewater can be a major contributor to the cultural eutrophication of surface waters. Constructed wetlands are under study as a best management practice to treat animal wastewater from dairy and swine operations. Preliminary results are promising when wetlands are a component of a farm-wide waste management plan, but they are ineffective without pretreatment of the wastewater. The feasibility of constructed wetlands varies with waste characteristics and climate. While the cost of wetland construction is low, the site must be maintained in order for the initial investment in the wetland to be worthwhile. In addition, several design iterations may be necessary before effective treatment is obtained. The design of animal wastewater treatment wetlands is still being researched and a number of the present projects will help provide recommendations for the use of constructed wetlands at animal operations.
ISSN:0167-8809
1873-2305
DOI:10.1016/0167-8809(96)01024-9