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Subject Keyword ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION ♦ WASTE WATER ♦ WATER TREATMENT ♦ WETLANDS ♦ PERFORMANCE ♦ ALABAMA ♦ AQUATIC ORGANISMS ♦ BIOCHEMICAL OXYGEN DEMAND ♦ CHEMICAL PLANTS ♦ COST ♦ OXIDATION ♦ POLLUTION REGULATIONS ♦ REEDS ♦ ROCKS ♦ SETTLING PONDS ♦ SIMULATION ♦ WATER TREATMENT PLANTS ♦ AQUATIC ECOSYSTEMS ♦ CHEMICAL REACTIONS ♦ ECOSYSTEMS ♦ FEDERAL REGION IV ♦ GRAMINEAE ♦ HYDROGEN COMPOUNDS ♦ INDUSTRIAL PLANTS ♦ LILIOPSIDA ♦ LIQUID WASTES ♦ MAGNOLIOPHYTA ♦ NORTH AMERICA ♦ OXYGEN COMPOUNDS ♦ PLANTS ♦ PONDS ♦ REGULATIONS ♦ SURFACE WATERS ♦ USA ♦ WASTES ♦ WATER 320305* -- Energy Conservation, Consumption, & Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
Abstract When a chemical plant in Alabama wished to expand operations, state requirements for wastewater discharged from their facility appeared to be impossible to be met. It was to have a BOD of only 4 milligrams/liter. This paper describes an artificial marshland, known as microbial rock-reed plant filters, used to treat these industrial wastewaters. An oxidation ditch and clarifiers reduce BOD from 3000 mg/l to 30 mg/l in five days. The water flows then to a settling pond covered with floating aquatic plants where it stays for three days. It then flows from opposite sides into a central channel in the middle of the artificial marsh where it spends 1-2 days trickling through the 3.4-acre marsh where the BOD is reduced to below the required 4 mg/l.
ISSN 02765055
Educational Use Research
Learning Resource Type Article
Publisher Date 1989-02-01
Publisher Place United States
Journal BioCycle
Volume Number 30
Issue Number 2


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