Record Display for the EPA National Library Catalog
RECORD NUMBER: 40 OF 55| Main Title | Reductions of enteric microorganisms during aerobic sludge digestion {MICROFICHE} : comparison of conventional and autoheated digesters / | |||||||||||
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| Author | Martin, John H. | |||||||||||
| CORP Author | Cornell Univ., Ithaca, NY.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. | |||||||||||
| Publisher | Dept. of Agricultural and Biological Engineering, Cornell University, | |||||||||||
| Year Published | 1989 | |||||||||||
| Report Number | EPA/600/2-88/072 | |||||||||||
| Stock Number | PB89-138846 | |||||||||||
| Subjects | Sewage sludge digestion ; Microorganisms--Effect of temperature on | |||||||||||
| Additional Subjects | Sludge digestion ; Aerobic processes ; Aerobic bacteria ; Microorganism control(Sewage) ; Municipalities ; Sludge disposal ; Digestion(Decomposition) ; Digesters ; Temperature ; Stabilization ; Enteroviruses ; Salmonella ssp | |||||||||||
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| Collation | xi, 111 p. : ill. ; 28 cm. | |||||||||||
| Abstract | The objectives of the investigation were to: (1) determine the seasonal variations in sludge stabilization and reductions in the densities of indicator organisms, Salmonella ssp., and enteroviruses that occur with conventional aerobic digestion in cold climates; and (2) demonstrate that both sludge stabilization and reductions in the densities of these microorganisms can be improved by simple modifications that increase process temperature. Two 32 cu m aerobic digesters located at a small municipal wastewater treatment plant were operated continuously over a period of 20 months to obtain the data necessary to satisfy these objectives. One digester was a conventional digester while the other was designed to minimize heat losses and thus, facilitate autoheating. |
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| Notes | "EPA/600/2-88/072." "January 1989." Bibliography: p. 84-86. Microfiche. |