Moisture effects on inactivation and growth of bacteria and fungi in sludges
The sewage sludge irradiation program at Sandia Laboratories has included treatment of liquid and solid sludges. Considerable data on liquid sludges, raw as well as digested, have been generated. For studies of the value of sludge as a cattle feed supplement, however, we have irradiated dried raw and dried digested sludges. In addition, a significant portion of our recent efforts has dealt with pathogen reduction in composted sludge. Our primary research goal is the determination of parameters for inactivation of pathogens by ionizing radiation and/or heat. The effects of reduced moisture levels on these rate parameters may be important. This paper presents very recent data in this area for bacteria and fungi. The results of experiments on growth (and the inhibition of growth) of bacteria and fungi in composted sludge, a low-moisture system, are also presented.
- Research Organization:
- Sandia Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- EY-76-C-04-0789
- OSTI ID:
- 6572524
- Report Number(s):
- SAND-78-1304C; CONF-780853-2
- Resource Relation:
- Conference: Conference on design of municipal sludge compost facilities, Chicago, IL, USA, 29 Aug 1978
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
BACTERIA
GROWTH
FUNGI
MOISTURE
BIOLOGICAL EFFECTS
SEWAGE SLUDGE
RADIOSTERILIZATION
STERILIZATION
BACTERIAL SPORES
HEAT TREATMENTS
RESPONSE MODIFYING FACTORS
MICROORGANISMS
PLANTS
SEWAGE
SPORES
WASTES
560130* - Radiation Effects on Microorganisms
550700 - Microbiology