Treatment-system design for process wastewaters from non-tar-producing coal-gasification technology. Final report, March 1983-June 1985

Technical Report · Sat Jun 01 04:00:00 EDT 1985

OSTI ID:6292028

Castaldi, F J; Winton, S L

The report documents a study of the treatment of wastewaters from non-tar-producing coal-gasification processes and indicates that the aqueous wastes are treatable with conventional technology. Wastewater-management scenarios for treated-effluent discharge and wastewater reuse as cooling tower makeup were examined. A technology evaluation incorporating wastewater characterization and treatability data for the treatment of wastewaters from non-tar producing coal gasifiers established a single wastewater treatment system to meet both the discharge and reuse water-management scenarios. The example treatment system includes steam stripping, equalization, cyanide/thiocyanate conversion for treatment of stripper overheat condensates, biooxidation, and final effluent filtration. This study was performed to expand the existing wastewater data base to include characterization, treatability, and basis-of-design information. The results of laboratory and desk-top evaluations of alternative wastewater-treatment technologies produced conceptual designs for wastewater-treating facilities to meet discharge and water-reuse needs at non-tar-producing coal-gasification plants.

• Research Organization: Radian Corp., Austin, TX (USA)
• OSTI ID: 6292028
• Report Number(s): PB-86-103868/XAB; RAD-85-207-006-12
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
010800 -- Coal
Lignite
& Peat-- Waste Management
COAL GASIFICATION
CONTROL
COOLING TOWERS
GASIFICATION
HYDROGEN COMPOUNDS
LIQUID WASTES
MECHANICAL STRUCTURES
OXYGEN COMPOUNDS
POLLUTION CONTROL
THERMOCHEMICAL PROCESSES
TOWERS
WASTE WATER
WASTES
WATER
WATER POLLUTION CONTROL
WATER TREATMENT