Design and performance of the constructed wetland wastewater treatment system at Phillips High School, Bear Creek, Alabama

Technical Report · Tue May 01 04:00:00 EDT 1990

DOI:https://doi.org/10.2172/6838924· OSTI ID:6838924

A constructed wetlands waste water treatment system has been constructed at Phillips High School, Bear Creek, Alabama, to polish the effluent from the school's extended aeration package treatment plant. The project is a demonstration of innovative technology under the Congressionally appropriated Bear Creek Floatway projects. Construction was completed in August 1988 at a cost of $36,266. Monitoring results for the period October 1988 through July 1989 reveal that the system has been very effective in polishing the effluent from the package treatment plant. The effectiveness is attributed primarily to maintenance of an overall oxidizing environment within the gravel substrate. Average monthly removals during the first year of operation exceeded 90 percent for BOD, TSS, organic nitrogen, total phosphorus, dissolved phosphorus, and fecal coliforms. Average removal percentages ranged in the 80s for ammonia and total nitrogen and in the 70s for nitrate + nitrite nitrogen and dissolved BOD. The prevalence of oxidizing conditions is probably the result of low carbonaceous demand, the low inlet hydraulic loading rate, and the combination of the shallow gravel depth and the excellent plant coverage and root depths during the first year of operation. 11 refs., 17 figs., 2 tabs.

• Research Organization: Tennessee Valley Authority, Chattanooga, TN (USA). River Basin Operations/Water Resources
• Sponsoring Organization: TVA
• OSTI ID: 6838924
• Report Number(s): TVA/WR/WQ-90/5; ON: DE90011883
• Country of Publication: United States
• Language: English

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ALABAMA
AMMONIA
AQUATIC ECOSYSTEMS
BIOCHEMICAL OXYGEN DEMAND
COLIFORMS
DESIGN
DISSOLVED GASES
ECOSYSTEMS
ELEMENTS
FEDERAL REGION IV
FLUIDS
GASES
HYDRIDES
HYDROGEN COMPOUNDS
LIQUID WASTES
MONITORING
NITRATES
NITRITES
NITROGEN
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
NORTH AMERICA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN
OXYGEN COMPOUNDS
PERFORMANCE
PH VALUE
PHOSPHORUS
PLANTS
REMOVAL
SOLIDS
SOLUTES
USA
WASTE WATER
WASTES
WATER
WATER TREATMENT
WATER TREATMENT PLANTS
WETLANDS