Record Display for the EPA National Library Catalog


Main Title Control of Ozone Disinfection by Exhaust Gas Monitoring.
Author Venosa, A. D. ; Meckes, M. C. ;
CORP Author Municipal Environmental Research Lab., Cincinnati, OH.
Year Published 1983
Report Number EPA-600/J-83-146;
Stock Number PB84-150648
Additional Subjects Ozone ; Disinfectants ; Water pollution control ; Industrial waste treatment ; Sewage treatment ; Water treatment ; Contractors ; Sampling ; Concentration(Composition) ; Reprints ; Air pollution sampling ; Gaseous wastes ; Water pollution sampling ; Monitoring ; Air water interactions
Library Call Number Additional Info Location Last
NTIS  PB84-150648 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
In this paper it was demonstrated empirically that disinfection with ozone can be controlled by monitoring the exhaust gas ozone concentration exiting the contactor. This method is more reliable than measuring dissolved ozone because of the inherent difficulties and inadequacies of the state-of-the-art dissolved residual techniques. The advantages of measuring exhaust gas ozone are summarized as follows: True ozone is being measured, free of interferences, ozone demand of the effluent and transfer efficiency of the contactor are automatically accounted for in one measurement, the method is easily automated, instruments are already available on the market for measuring ozone in the gas phase with accuracy, precision, and low level sensitivity and ozone is more stable in the gaseous phase than in the liquid phase, and consequently the operator does not have to concern himself with dissipation of the ozone from the time it leaves the contactor to the time it arrives at the analyzer.