Gasifier waste water treatment: Phase I cooling tower assessment

Journal Article · Fri Feb 01 04:00:00 EST 1985 · Environ. Prog.; (United States)

DOI:https://doi.org/10.1002/ep.670040111· OSTI ID:5244111

Mann, M D; Willson, W G; Hendrikson, J G; Winton, S L

Details of an advanced study of the treatability of waste waters from the fixed-bed gasification of lignite describe the test equipment and results at a pilot plant in North Dakota using stripped-gas liquor (SGL) as cooling tower makeup. Ammonia, alkalinity, phenol, and other non-hydantoin organics were removed from the cooling water by stripping and/or biological degradation, with the phenol concentration in the exhaust air exceeding the odor threshold. It will be necessary to control foaming of the circulating water, but both glycol and silicon based agents performed well during the test. It will also be necessary to reduce the high level of biofouling on heat transfer surfaces, although stainless steel fouling was not a major problem. The conclusion is that SGL is limited by potentially serious operating problems without additional treatment. 5 references, 4 figures, 7 tables.

• Research Organization: Univ. of North Dakota, Grand Forks
• OSTI ID: 5244111
• Journal Information: Environ. Prog.; (United States), Journal Name: Environ. Prog.; (United States) Vol. 4:1; ISSN ENVPD
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
BIOLOGICAL FOULING
BROWN COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
COAL GASIFICATION PLANTS
CONTROL
CORROSION
ENERGY SOURCES
ENVIRONMENTAL QUALITY
FOSSIL FUELS
FOULING
FUELS
GASIFICATION
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
LIGNITE
LIQUID WASTES
MATERIALS
OXYGEN COMPOUNDS
POLLUTION CONTROL
TECHNOLOGY ASSESSMENT
THERMOCHEMICAL PROCESSES
WASTE WATER
WASTES
WATER
WATER POLLUTION CONTROL
WATER QUALITY
WATER TREATMENT