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Toxic substance removal in activated sludge and PAC (powdered activated carbon) treatment systems. Final report, 1 September 1980-28 February 1983

Technical Report ·
OSTI ID:5823939
;
The effectiveness of adding powdered activated carbon to activated-sludge systems was evaluated for enhanced removal of specific toxic organic compounds. Nine organic compounds encompassing a range of solubility, volatility, biodegradability, and adsorptive properties were studied along with selected commercial powdered activated carbons. The studies showed that the addition of less than 100 mg/l powdered activated carbon did not enhance the removal of the biodegradable compounds benzene, toluene, ethylbenzene, o-xylene, chlorobenzene, and nitrobenzene. Significantly improved removals of the poorly degradable and non-biodegradable compounds 1,2-dichloro-benzene, 1,2,4-trichlorobenzene, and lindane, occurred at influent powdered carbon concentrations in the 12.5- to 25-mg/l range. Influent powdered carbon concentrations of 100 mg/l effected overall removals of greater than 90%.
Research Organization:
Michigan Univ., Ann Arbor (USA). Dept. of Civil Engineering
OSTI ID:
5823939
Report Number(s):
PB-86-182425/XAB
Country of Publication:
United States
Language:
English

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Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
290300* -- Energy Planning & Policy-- Environment
Health
& Safety
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
320604 -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
ACTIVATED CARBON
ACTIVATED SLUDGE PROCESS
ADSORBENTS
ADSORPTION
ALKYLATED AROMATICS
AROMATICS
BENZENE
CARBON
ELEMENTS
HYDROCARBONS
MANAGEMENT
MATERIALS
NONMETALS
ORGANIC COMPOUNDS
PROCESSING
REMOVAL
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TOXIC MATERIALS
WASTE MANAGEMENT
WASTE PROCESSING
XYLENES