Record Display for the EPA National Library Catalog

RECORD NUMBER: 24 OF 454

Main Title Ammonia Removal in a Physical-Chemical Wastewater Treatment Process.
Author Barne, Robert A. ; Atkins, Jr, Peter F. ; Scherge, Dale A. ;
CORP Author Ayres, Lewis, Norris and May, Inc., Ann Arbor, Mich.
Year Published 1972
Report Number EPA-68-01-0049; EPA-17010-HAM; R2-72-123;
Stock Number PB-214 531
Additional Subjects ( Chemical removal(Sewage treatment) ; Ammonia) ; ( Sewage treatment ; Chemical removal(Sewage treatment)) ; ( Chlorination ; Ammonia) ; Amines ; Pilot plants ; Performance evaluation ; Coagulation ; Activated carbon treatment ; Phosphorus ; Nitrogen ; Biochemical oxygen demand ; Particles ; Chloramines ; Physical chemical treatment ; Dechlorination ; Owosso(Michigan)
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
NTIS  PB-214 531 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 68p
Abstract
Discussed is a pilot scale study for ammonia removal at Owosso, Michigan, involving a physical-chemical wastewater treatment system consisting of chemical coagulation (lime to pH 8.8 to 9.4) sedimentation, deep bed filtration, carbon adsorption, chlorination to oxidize ammonia, and carbon dechlorination to remove free chlorine and chloramines. Ammonia-nitrogen was removed to any desired level by the chlorination-dechlorination system. Complete removal would require a chlorine to ammonia feed ratio of 9 to 1. The dechlorination carbon removed free chlorine and also the chloramines formed at less-than-breakpoint operation. There is an initial ammonia-nitrogen breakthrough when using fresh dechlorination carbon which is attributed to acclimation rather than continuous leakage. An hypothesis describing chloramine removal is presented.