Heat inactivation of poliovirus in wastewater sludge

Journal Article · Wed Sep 01 04:00:00 EDT 1976 · Appl. Environ. Microbiol.; (United States)

OSTI ID:7100316

Ward, R L; Ashley, C S; Moseley, R H

The effect of raw and anaerobically digested sludge on heat inactivation of poliovirus was investigated. Raw sludge was found to be very protective of poliovirus plaque-forming ability at all temperatures studied, but digested sludge had variable effects that were highly dependent upon the experimental conditions. In low concentrations and at relatively low inactivation temperatures, digested sludge is nearly as protective of poliovirus as raw sludge. However, at higher temperatures and concentrations, digested sludge caused a significant acceleration of poliovirus inactivation. The difference between the protective capability of raw and digested sludge is not due to loss of protective material, because this component is present in the solids of digested sludge as well as in those of raw sludge. Instead, the difference is due to a virucidal agent acquired during digestion. Addition of this agent to the solids of either raw or digested sludge reverses the protective potential of these solids during heat treatment of poliovirus.

• Research Organization: Sandia Labs., Albuquerque, NM
• OSTI ID: 7100316
• Journal Information: Appl. Environ. Microbiol.; (United States), Journal Name: Appl. Environ. Microbiol.; (United States) Vol. 32:3; ISSN AEMID
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320604 -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
550700* -- Microbiology
560202 -- Thermal Effects-- Microorganisms-- (1987)
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANAEROBIC DIGESTION
BIOCONVERSION
DIGESTION
ENERGY
HEAT
HYDROGEN COMPOUNDS
INACTIVATION
LIQUID WASTES
MANAGEMENT
MICROORGANISMS
OXYGEN COMPOUNDS
PARASITES
POLIO VIRUS
PROCESSING
SLUDGES
TEMPERATURE EFFECTS
VIRUSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER