Comparative removal of toxic pollutants by six wastewater treatment processes
Five pilot-scale wastewater treatment processes that provided less than secondary treatment - primary clarification plus filtration, chemical clarification, high-rate trickling filter, aerated lagoon, and facultative lagoon - were evaluated for removal of priority pollutants from municipal wastewater. A conventional activated sludge system was operated in parallel as a control. Wastewater feed was spiked with 21 organics dissolved in toluene. Removal of ambient concentrations of live metals was also evaluated. The control typically removed 80 to 90% of volatiles and 85 to 95% of semivolatiles. The facultative lagoon was the best alternative process, followed by the aerated lagoon. Removals of a specific toxic pollutant depended on the properties of the chemical and its interactions with removal mechanisms used in each treatment process. 9 references, 2 tables.
- Research Organization:
- Environmental Protection Agency, Cincinnati, OH
- OSTI ID:
- 5563462
- Journal Information:
- J. - Water Pollut. Control Fed.; (United States), Vol. 58:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
TOXIC MATERIALS
REMOVAL
WASTE PROCESSING
COMPARATIVE EVALUATIONS
WASTE WATER
EFFICIENCY
MUNICIPAL WASTES
ORGANIC COMPOUNDS
PERFORMANCE TESTING
PILOT PLANTS
POLLUTANTS
SEWAGE SLUDGE
FUNCTIONAL MODELS
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
MATERIALS
OXYGEN COMPOUNDS
PROCESSING
SEWAGE
SLUDGES
TESTING
WASTE MANAGEMENT
WASTES
WATER
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)