Organic particulate removal with the anaerobic attached-film expanded-bed process

Conference · Fri Jan 01 04:00:00 EST 1982 · Proc. Ind. Waste Conf.; (United States)

OSTI ID:5213270

Morris, J W; Jewell, W J

The anaerobic attached-film expanded-bed process (AAFEB) has been shown to successfully treat a variety of wastestreams including primary settled domestic wastewater at 20 C and hydraulic retention periods shorter than 30 minutes, producing an effluent containing less than 40 mg/1 total COD and 5 mg/1 SS. This process has for the first time demonstrated the feasibility of utilizing an anaerobic methane fermentation for the treatment of dilute organic wastewaters at low temperatures while producing energy and only small amounts of excess biological solids. The process exhibits remarkable resiliency, uncommon to conventional anaerobic treatment systems, when subjected to large instantaneous changes of temperature, flow rate and substrate concentration. The AAFEB appears to have significant potential to become an attractive alternative wastewater treatment technology. Previous studies in the development of process understanding have mostly concentrated on soluble substrates. The objectives of this study are to: (1) define the capability for organic particulate removal using cellulose as well as a variety of more complex organic particulate substrates; and (2) identify the relationship of organic particulates within the system to the biologically active reactor phases.

• Research Organization: Cornell Univ., Ithaca, NY
• OSTI ID: 5213270
• Report Number(s): CONF-810577-
• Conference Information: Journal Name: Proc. Ind. Waste Conf.; (United States) Journal Volume: 36
• Country of Publication: United States
• Language: English

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54 ENVIRONMENTAL SCIENCES
ALKANES
ANAEROBIC DIGESTION
BENCH-SCALE EXPERIMENTS
BIOCONVERSION
BIOSYNTHESIS
CARBOHYDRATES
CELLULOSE
COLLOIDS
DIGESTION
DISPERSIONS
FILMS
HYDROCARBONS
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
METHANE
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
POLYSACCHARIDES
PROCESSING
REMOVAL
SACCHARIDES
SYNTHESIS
TOTAL SUSPENDED PARTICULATES
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER