Dewatering of organic sludge by pulverized coal

Journal Article · Mon Dec 01 04:00:00 EST 1975 · J. Water Pollut. Control Fed.; (United States)

OSTI ID:7313635

Hirota, M; Okada, H; Misaka, Y; Kato, K

The results of the investigation indicate that a sludge dewatering system using pulverized coal as a filter medium is both technically and economically feasible. Because of the simplicity of the system and the ease of its operation, the economics of this process compare favorably with a conventional anaerobic sludge digestion dewatering system. Dewatering of various organic sludges with the coal-bed system produced sludges having approximately 70 percent moisture. Sustained burning of the dewatered sludge-coal mixture was achieved without supplementary fuel. A savings of about $45 per ton of dry solids may be realized by using the coal-bed system when compared to a conventional anaerobic sludge digestion dewatering system.

• Research Organization: Kurita Water Industries Ltd., Yokohama, Japan
• OSTI ID: 7313635
• Journal Information: J. Water Pollut. Control Fed.; (United States), Journal Name: J. Water Pollut. Control Fed.; (United States) Vol. 47:12; ISSN JWPFA
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090122 -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
20 FOSSIL-FUELED POWER PLANTS
200103 -- Fossil-Fueled Power Plants-- Waste-Fueled Systems
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
42 ENGINEERING
420900* -- Engineering-- Waste Processing Plants & Equipment-- (-1989)
ACTIVATED SLUDGE PROCESS
CHEMICAL REACTIONS
COAL FINES
COMBUSTION
COMPARATIVE EVALUATIONS
DESIGN
ECONOMICS
FEASIBILITY STUDIES
HYDROGEN COMPOUNDS
INCINERATORS
LIQUID WASTES
MANAGEMENT
OXIDATION
OXYGEN COMPOUNDS
PARTICLE SIZE
PROCESSING
REMOVAL
SEWAGE
SEWAGE SLUDGE
SIZE
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER
WATER REMOVAL