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
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-214 563 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
29p |
Abstract |
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. |