Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Toxic Substance Removal in Activated Sludge and PAC (Powdered Activated Carbon) Treatment Systems.
Author Weber, W. J. ; Jones, B. E. ;
CORP Author Michigan Univ., Ann Arbor. Dept. of Civil Engineering.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Year Published 1986
Report Number EPA-R-806030; EPA/600/2-86/045;
Stock Number PB86-182425
Additional Subjects Organic compounds ; Activated sludge process ; Activated carbon ; Hazardous wastes ; Removal ; Toxicity ; Biodeterioration ; Adsorption ; Concentration(Composition) ; Benzene ; Chlorobenzenes ; Xylenes ; Vaporizing ; Effectiveness ; Graphs(Charts) ; Tables(Data) ; Toulene
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB86-182425 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 561p
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%.