Ozone disinfection and color removal in waste water. Final report
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% 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.
- Research Organization:
- Los Angeles County Sanitation Districts, Whittier, CA (USA)
- OSTI ID:
- 5099143
- Report Number(s):
- PB-86-230059/XAB
- Country of Publication:
- United States
- Language:
- English
Similar Records
Durability of Disposable N95 Mask Material When Exposed to Improvised Ozone Gas Disinfection
Products identified at an alternative disinfection pilot plant
Related Subjects
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CARBON
CHEMICAL REACTIONS
COLOR
ELEMENTS
FILTRATION
HYDROGEN COMPOUNDS
LIQUID WASTES
MICROORGANISMS
NITRIFICATION
NONMETALS
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
OXIDATION
OXYGEN COMPOUNDS
OZONE
OZONIZATION
PARASITES
PHYSICAL PROPERTIES
REMOVAL
SEPARATION PROCESSES
SPARGERS
VIRUSES
WASTE WATER
WASTES
WATER