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Article: Recirculating vertical flow constructed wetland: green alternative to treating both human and animal sewage.(Report)
- Article from:
- Journal of Environmental Health
- Article date:
- November 1, 2009
- Author:
CopyrightCOPYRIGHT 2009 National Environmental Health Association. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Introduction
Conventional septic systems commonly used to treat residential sewage in areas without sanitary sewers are considered a primary contaminant source for surface or underground water supplies (Whitehill, Brian-Tercha, & Davis, 2003), including human drinking water wells (Bhardwaj, 2003). Horizontal gravity flow subsurface constructed wetlands have been used for more than a decade in LaGrange County, Indiana, to remove human sewage contaminants before underground final disposal. Horizontal gravity flow constructed wetlands provide acceptable removal efficiency for the five-day biological oxygen demand ([BOD.sub.5]), total suspended solids (TSS), and ...