Pilot-scale development of anaerobic filter technology for municipal wastewater treatment
The use of anaerobic filter technology for the treatment of low-strength municipal wastewater was studied by Oak Ridge National Laboratory (ORNL) in Knoxville, Tennessee, with a pilot-scale (e.g., 190-m/sup 3//d) facility from August 1981 to October 1983. The Knoxville project (described by the acronym ANFLOW for the anaerobic, upflow characteristics of the technology) was a tenfold scale-up of a previous ORNL study in Oak Ridge, Tennessee. Pollutant loading rates used in this study ranged from 0.1 to 0.7 kg/m/sup 3/ x d for total suspended solids (TSS) and from 0.1 to 0.4 kg/m/sup 3/ x d for biochemical oxygen demand (BOD); the hydraulic retention time ranged from 9 to 10 h. Removal efficiencies for TSS and BOD were 80 and 70%, respectively. This performance was maintained in ambient cold-weather tests (water temperature, approx.12/sup 0/C), even though the rate of solids accumulation in the bioreactor was higher because of decreased biological activity, which normally converts solids to off-gas. The solids inventory in the bioreactor appeared to be diminished during warmer weather. 26 refs., 16 figs., 3 tabs.
- Research Organization:
- Oak Ridge National Lab., TN (USA); Tennessee Univ., Knoxville (USA). Dept. of Civil Engineering
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5447443
- Report Number(s):
- CONF-850690-1; ON: DE85016965
- Resource Relation:
- Conference: Anaerobic treatment of sewage: seminar and workshop, Amherst, MA, USA, 27 Jun 1985; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
WASTE WATER
WATER TREATMENT
PILOT PLANTS
ANAEROBIC DIGESTION
BIOCHEMICAL OXYGEN DEMAND
BIOREACTORS
MUNICIPAL WASTES
REMOVAL
TENNESSEE
TOTAL SUSPENDED PARTICULATES
BIOCONVERSION
DIGESTION
FEDERAL REGION IV
FUNCTIONAL MODELS
HYDROGEN COMPOUNDS
LIQUID WASTES
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NORTH AMERICA
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
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USA
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
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520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
320604 - Energy Conservation
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