Demineralization for reuse of coal conversion condensates

Journal Article · Fri Jul 01 04:00:00 EDT 1983 · Ind. Eng. Chem. Process Des. Dev.; (United States)

DOI:https://doi.org/10.1021/i200022a026· OSTI ID:5638365

Campbell, J R; Dzombak, D A; Luthy, R G

Zero discharge-oriented water management strategies for coal conversion facilities indicate that process wastewater is a prime source of cooling tower makeup water, and that a demineralization technology will be employed for process wastewater to achieve the quality criteria necessary for operating cooling towers at high cycles of concentration. This will help to maximize water reuse as well as to help minimize the production of brine. Reverse osmosis (RO) was considered to be the most appropriate of available demineralization processes, a laboratory-scale RO experiments were conducted with a phenolic coal gasification wastewater which had been processed through a series of pretreatment steps including activated carbon adsorption. Tests conducted with a polyamide membrane gave somewhat higher product water quality, while the cellulose triacetate membrane provided greater flux rates. Membrane fouling was not observed with the polyamide membrane owing to wastewater pretreatment and addition of sodium metaphosphate inhibitor. Long-term studies are required to confirm this observation.

• Research Organization: Department of Civil Engineering, Carnegie-Mellon University, Pittsburgh, Pennsylvania 15213
• OSTI ID: 5638365
• Journal Information: Ind. Eng. Chem. Process Des. Dev.; (United States), Journal Name: Ind. Eng. Chem. Process Des. Dev.; (United States) Vol. 22:3; ISSN IEPDA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
ACETATES
ACTIVATED CARBON
ADSORBENTS
ADSORPTION
ALKALI METAL COMPOUNDS
AROMATICS
BRINES
CARBOHYDRATES
CARBON
CARBOXYLIC ACID SALTS
CELLULOSE
COAL PREPARATION PLANTS
COOLING TOWERS
DEMINERALIZATION
DIFFUSION
ELEMENTS
ENVIRONMENTAL QUALITY
FOULING
HEAT TREATMENTS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INDUSTRIAL PLANTS
LIQUID WASTES
MECHANICAL STRUCTURES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OSMOSIS
OXYGEN COMPOUNDS
PHENOLS
PHOSPHATES
PHOSPHORUS COMPOUNDS
POLYAMIDES
POLYMERS
POLYSACCHARIDES
SACCHARIDES
SEPARATION PROCESSES
SODIUM COMPOUNDS
SODIUM PHOSPHATES
SORPTION
TECHNOLOGY UTILIZATION
TOWERS
WASTE WATER
WASTES
WATER
WATER QUALITY
WATER TREATMENT