Modelling and control of blackwater treatment in coal preparation

Conference · Thu Jan 01 04:00:00 EST 1981 · Sep. Sci. Technol.; (United States)

OSTI ID:6118527

Fitzpatrick, J A ^[1]; Vallario, R W

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1. Northwestern Univ., Evanston, IL

Blackwater streams emerging as effluents from coal preparation plants typically contain considerable coal values which are rejected with waste solids. Additionally, new and proposed environmental regulations severely limit the use of coal refuse ponds and encourage closed water circuitry. Optimization of flotation cells and thickening units to overcome these limitations has not been successful in most cases. Models are chosen here for simulating the two processes and examined from a theoretical and practical standpoint in application to coal preparation problems. The emphasis of this analysis is to provide a rational basis for unit process control through proper model selection and application. Strengths and weaknesses of model approaches and developmental needs are also reviewed. 4 figures, 6 tables.

• OSTI ID: 6118527
• Report Number(s): CONF-810520-
• Conference Information: Journal Name: Sep. Sci. Technol.; (United States) Journal Volume: 16:10
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
COAL PREPARATION
COAL PREPARATION PLANTS
COMMINUTION
FLOTATION
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
LIQUID WASTES
MANAGEMENT
OPTIMIZATION
OXYGEN COMPOUNDS
POLLUTION
PROCESSING
SEPARATION PROCESSES
SIMULATION
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER
WATER POLLUTION