Treatment of coal coking and coal gasification wastewaters

Conference · Sun Mar 01 04:00:00 EST 1981 · J. Water Pollut. Control Fed.; (United States)

OSTI ID:6409768

Luthy, R G

This paper summarizes experimental findings on physico-chemical pretreatment and biological oxidation of phenolic wastewaters from a coke plant and two pilot high-energy coal gasification processes. Pollutant concentrations in coal coking and phenolic coal gasification effluents were present in different relative proportions with important implications for selection and design of pretreatment processes, and for quality of biologically treated wastewater, including incentive for pretreatment by solvent extraction, relative distribution of free- and fixed-ammonia, and impact of thiocyanate-nitrogen on nitrogen transformations during biological oxidation. Biological treatment of coal refinery effluents results in relatively low microbial yields because of inhibitory constituents in the wastewater or because of compounds formed as a result of biological treatment. In addition, thermodynamic considerations of bacterial utilization of phenol and thiocyanate predict yields somewhat lower would be expected from treatment of less complex wastewaters.

• Research Organization: Carnegie-Mellon Univ., Pittsburgh, PA
• OSTI ID: 6409768
• Conference Information: Journal Name: J. Water Pollut. Control Fed.; (United States) Journal Volume: 53:3
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
550700* -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
AMMONIA
ANTITHYROID DRUGS
AROMATICS
BACTERIA
BIODEGRADATION
CARBONIC ACID DERIVATIVES
CARBONIZATION
CHEMICAL EFFLUENTS
CHEMICAL REACTIONS
COAL GASIFICATION
COAL INDUSTRY
COKING
DECOMPOSITION
DESIGN
DRUGS
ELEMENTS
GASIFICATION
HORMONE ANTAGONISTS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INDUSTRY
LIQUID WASTES
MANAGEMENT
MICROORGANISMS
NITROGEN
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PHENOLS
POLLUTION
PROCESSING
PRODUCTIVITY
QUANTITY RATIO
THERMOCHEMICAL PROCESSES
THIOCYANATES
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER