Artificial marsh treats industrial wastewater
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.
- OSTI ID:
- 6556913
- Journal Information:
- BioCycle; (USA), Journal Name: BioCycle; (USA) Vol. 30:2; ISSN 0276-5055; ISSN BCYCD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
ALABAMA
AQUATIC ECOSYSTEMS
AQUATIC ORGANISMS
BIOCHEMICAL OXYGEN DEMAND
CHEMICAL PLANTS
CHEMICAL REACTIONS
COST
ECOSYSTEMS
FEDERAL REGION IV
GRAMINEAE
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
LILIOPSIDA
LIQUID WASTES
MAGNOLIOPHYTA
NORTH AMERICA
OXIDATION
OXYGEN COMPOUNDS
PERFORMANCE
PLANTS
POLLUTION REGULATIONS
PONDS
REEDS
REGULATIONS
ROCKS
SETTLING PONDS
SIMULATION
SURFACE WATERS
USA
WASTE WATER
WASTES
WATER
WATER TREATMENT
WATER TREATMENT PLANTS
WETLANDS