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Composition as It Affects Pathogen Inactivation in Animal Manure-Based Composts

Investigators
Erickson, Marilyn
Institutions
University of Georgia
Start date
2006
End date
2011
Objective
  1. To determine the rate of inactivation of fecal pathogens under varying composting conditions encountered in the field;
  2. To identify the mechanism for pathogen inactivation during composting of animal manures by monitoring chemical and physical parameters in the system;
  3. To evaluate selected management tools during composting of animal manures on inactivation of fecal pathogens.
More information
NON-TECHNICAL SUMMARY: This study will investigate pathogen inactivation in composting systems incorporating animal manure as a raw ingredient. Qualitative and quantitative variations in other raw ingredients incorporated into the compost mixture will be evaluated for their influence on pathogen inactivation.

APPROACH: Inactivation of pathogens (Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella spp.) in compost bioreactors and static compost piles will be monitored in response to manure type, carbon feedstock, carbon:nitrogen ratio, and compost amendment (ammonium sulfate, hydrogen peroxide). Data collected will assist in the development of expanded guidelines for compost operations where manure is used as a raw ingredient

Funding Source
Nat'l. Inst. of Food and Agriculture
Project source
View this project
Project number
GEO01662
Accession number
206357
Categories
Listeria
Bacterial Pathogens