Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Physical-Chemical Nitrogen Removal from Municipal Wastewater.
Author Casse, Alan F. ; Pressle, Thomas A. ; Schu, Walter W. ; Bisho, Dolloff F. ;
CORP Author Robert A. Taft Water Research Center, Cincinnati, Ohio. Advanced Waste Treatment Research Lab.
Year Published 1971
Stock Number PB-214 563
Additional Subjects ( Chemical removal(Sewage treatment) ; Ammonia) ; ( Sewage treatment ; Chemical removal(Sewage treatment)) ; Chlorination ; Ion exchanging ; Performance evaluation ; Pilot plants ; Nitrogen ; Physical chemical treatment ; Clinoptilolite ; Zeolites
Library Call Number Additional Info Location Last
NTIS  PB-214 563 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 29p
Selective ion exchange for ammonia removal, using the natural zeolite, clinoptilolite, was applied to lime clarified and filtered raw wastewater both before and after carbon adsorption. Intermittant operation of the ion exchange unit with minimum operator surveillance produced an average of 75% removal of NH3-N over a 10 month period. Breakpoint chlorination for ammonia removal was also studied by applying it to filtered secondary effluent and to selective ion exchange effluent. Chlorination of filtered secondary effluent in an agitated reactor removed essentially all the NH3-N with 95% conversion to N2 gas. Process variables are discussed.