Record Display for the EPA National Library Catalog

RECORD NUMBER: 998 OF 1029

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
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=91024EW4.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB86-182425 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 561p
Abstract
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%.