Record Display for the EPA National Library Catalog


Main Title Granular Carbon Treatment of Raw Sewage.
Author Hopkin, C. B. ; Weber, Jr, W. J. ; Bloom, J, R. ;
CORP Author FMC Corp., Princeton, N.J.
Year Published 1970
Report Number FWQA-17050-DAL; 05157,; 17050-DAL-05/70
Stock Number PB-197 864
Additional Subjects ( Activated carbon treatment ; Sewage treatment) ; ( Clarification ; Sewage treatment) ; Particle size ; Chemical removal(Sewage treatment) ; Coagulants ; Iron chlorides ; Organic compounds ; Phosphates ; Pilot plants ; Equipment ;
Library Call Number Additional Info Location Last
NTIS  PB-197 864 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 91p
A comparison was made of expanded-bed and packed-bed modes of operation of activated carbon adsorption systems in the direct physico-chemical treatment of raw sewage and primary effluent. The project involved extended field testing of a pilot scale treatment system of chemical clarification followed by adsorption. The expanded-bed and packed-bed modes of operation demonstrated essentially equivalent removal of organic matter from the chemically clarified effluent. When a 24 ft. settled depth of activated carbon was used, both systems consistently produced a clear, treated water with an average organic content of only 3-5 mg/l, measured either as TOC or BOD. The expanded bed mode offered several advantages: (1) it eliminates plugging or fouling with particulate matter and air binding; (2) feed pressure remains constant and maintenance requirements are minimal; and (3) it provides an opportunity for a degree of natural aeration. Estimated cost for treating raw waste water in a 10 MGD plant by this process is about 20 cents per 1000 gal. with a total estimated investment of $4,000,000. (WRSIC abstract)