| Recirculating vertical flow constructed wetland: green alternative to treating both human and animal sewage. | |
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MedLine Citation:
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PMID: 19908434 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Subsurface constructed wetlands using a recirculating vertical flow are a viable alternative technology to pretreating conventional residential septic systems effluents before underground discharge. The authors examined performance of a recirculating vertical flow constructed wetland (RVFCW) to treat both human and domestic animal sewage from the LaGrange County (Indiana) Animal Shelter. Effluent water samples were analyzed for the five-day biochemical oxygen demand (BOD5), total suspended solids (TSS), ammonia-nitrogen (AN), total Kjeldhal nitrogen (TKN), total nitrogen (TN), nitrate-nitrogen, total phosphorus (TP) and fecal coliform bacteria (FC). Treatment efficiencies (percentage removal) after a two-year operation were high for BOD5 (99%), TSS (98%), AN (96%), TKN (94%), TN (83%), and FC (99%). Nitrate-nitrogen final mean value was 6.8 mg/L, dissolved oxygen concentration increased from 1.8 to 4.3 mg/L, and removal efficiency for total phosphorus was low (33%). These results show that vertical flow constructed wetlands are a green alternative to remove pollutants generated for both human and domestic animals. |
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Authors:
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Alfredo García-Pérez; Mark Harrison; Bill Grant |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of environmental health Volume: 72 ISSN: 0022-0892 ISO Abbreviation: J Environ Health Publication Date: 2009 Nov |
Date Detail:
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Created Date: 2009-11-13 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0405525 Medline TA: J Environ Health Country: United States |
Other Details:
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Languages: eng Pagination: 17-20 Citation Subset: IM |
Affiliation:
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LaGrange County Health Department, Environmental Health Office, LaGrange, IN 46761-1319, USA. agarcia@lagrangecounty.org |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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