Inactivation of ascaris lumbricoides eggs by heat, radiation, and thermoradiation

Technical Report · Tue Jul 01 00:00:00 EDT 1975

DOI:https://doi.org/10.2172/4211458· OSTI ID:4211458

Brannen, J. P.; Garst, D. M.; Langley, S.

It is desirable to eliminate the public health hazards associated with land application of municipal sewage sludge as a fertilizer or soil conditioner. This report describes experimentation to determine the effects of heat, radiation, and thermoradiation on the suppression of embryonation of Ascaris lumbricoides ova, a parasite commonly found in sewage sludge. Heat effects were observed at a minimum temperature of 51°C and radiation effects at doses in excess of 15 krads of ionizing gamma radiation. Thermoradiation at 47°C suppressed embryonation at less than half the total dose required by radiation alone.

• Research Organization: Sandia Labs., Albuquerque, NM and Livermore, CA (United States)
• Sponsoring Organization: US Energy Research and Development Administration (ERDA)
• DOE Contract Number: AT(29-1)-789
• NSA Number: NSA-32-024525
• OSTI ID: 4211458
• Report Number(s): SAND-75-0163
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-75
• Country of Publication: United States
• Language: English

Related Subjects

N48531* -Life Sciences-Radiation Effects on Animals- Invertebrates-Basic Studies
N44600 -Environmental & Earth Sciences-Thermal Effluents
*ASCARIS- RADIOSTERILIZATION
BIOLOGICAL RADIATION EFFECTS
GAMMA SOURCES
HEALTH HAZARDS
LIQUID WASTES
PARASITES
RADIATION DOSES
TEMPERATURE DEPENDENCE
WASTE PROCESSING