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Publication Type
Journal Article
UWI Author(s)
Author, Analytic
Bramwell, Sharon; Devi Prasad, P.V.
Author Affiliation, Ana.
Life Sciences (Botany and Zoology); Faculty of Pure and Applied Sciences
Article Title
Performance of a small aquatic plant wastewater treatment system under Caribbean conditions
Medium Designator
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Connective Phrase
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Journal Title
Journal of Environmental Management
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Reprint Status
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Date of Publication
1995
Volume ID
43
Issue ID
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Page(s)
213-220
Language
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Connective Phrase
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Location/URL
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ISSN
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Notes
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Abstract
The performance of an aquatic plant wastewater treatment system under Jamaican conditions was investigated. Eichhornia crassipes was used to determine nutrient removal capacity at a pilot scale. The experiments were conducted in a series of six tanks each of volume 5.4 x 10 1 containing E. crassipes, with secondary treated effluent supplied at a rate of 16 200 1/day for seven days. Over seven days, the mean decrease in total N in the effluent as it flowed between tanks one and six was 27.6%. Total P increased by an average of 4.48%. Potassium showed a mean reduction of 20.2% but Na increased slightly (0.88%). Nitrogen content of the plant tissue increased by 2.9% after seven days and P by 6.7%.This removal of nutrients was reflected in the increase of the plant's tissue. Removal of N and P was dependent on the N:P concentration ratio of both the nutrient medium and the plant tissue. An aquatic treatment system of this design could treat sewage from a community with an average population of 5000 people. The nutrient levels of the water produced were suitable for irrigation purposes.....
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Keywords
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