Record Display for the EPA National Library Catalog


Main Title Ozone disinfection and color removal in wastewater /
Author Gan, Henry B.
Other Authors
Author Title of a Work
Gan, Henry B.
CORP Author Los Angeles County Sanitation Districts, Whittier, CA.;Municipal Environmental Research Lab., Cincinnati, OH.
Publisher U.S. Environmental Protection Agency, Municipal Environmental Research Laboratory,
Year Published 1986
Report Number EPA/600/2-86/065; EPA-14-12-150
Stock Number PB86-230059
Additional Subjects Ozone ; Disinfection ; Sewage treatment ; Dosage ; Ozonization ; Color ; Carbon ; Filtration ; Sand filters ; Waste water ; Removal ; Flow charts ; Nitrification ; Viruses ; Oxidation ; Performance evaluation ; Secondary treatment
Library Call Number Additional Info Location Last
NTIS  PB86-230059 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 103 pages : illustrations ; 28 cm
Various ozone contacting systems were evaluated. A sparger incorporated into a six-stage contacting system was found to be the most practical system. Over 80 percent ozone transfer efficiency was obtained in secondary effluent with an applied ozone dosage of 50 mg/l. Despite efficient mass transfer with the system, an ozone consumption in excess of 50 mg/l was found to be necessary to accomplish the disinfection goal of 2.2 MPN/100ml effluent. The color goal of 10 units was achieved at an ozone dose of 10 mg/l. The use of carbon filtration prior to ozonation reduced the ozone dosage required for adequate disinfection to as low as 1 mg/l. Pretreatment of the sand and carbon filters was also briefly investigated.
Caption title. "July 1986." "EPA-600/2-86/065." Microfiche.