||Survival of pathogens in animal manure disposal /
Diesch, Stanley L. ;
Goodrich, Philip R. ;
Pomeroy, Benjamin S. ;
Will., Loren A.
||Minnesota Univ., St. Paul. Coll. of Veterinary Medicine.;Robert S. Kerr Environmental Research Lab., Ada, Okla.
|| National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency,
Animal waste. ;
Agricultural wastes ;
Beef cattle ;
Industrial waste treatment ;
Waste disposal ;
Public health ;
Salmonella typhimurium ;
Test methods ;
Seasonal variations ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||xi, 129 pages : illustrations ; 27 cm.
A research project was conducted to measure and evaluate the public health effects of pathogens in beef cattle manure found in the extend aeration system of waste disposal. Model oxidation ditches were used in Laboratory studies. At simulated summer and winter environmental conditions determinations were made of the viability and infectivity of leptospires in weanling hamsters and salmonella in turkey poults. Salmonella was transmitted by aerosols, but leptospires were not. Measurements of selected microbial aerosols were made in the vicinity of a field ditch. Bacterial levels of 100-200 total colony-forming units per liter of air were associated with the beef cattle population in the housing unit and not with aerosols generated by the oxidation ditch treatment system. Studies were made on a model oxidation ditch simulating the field ditch. The winter temperature conditions slowed the degradation process considerably and high dissolved oxygen was maintained.
"Grant R802205; program element 1BB039; 21ARS/02." Includes bibliographical references (pages 119-122). Microfiche.