Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Pathogen and Indicator Organism Destruction by the Dual Digestion System.
Author Appleton, A. R. ; Leong, C. J. ; Venosa, A. D. ;
CORP Author Montgomery (James M.), Inc., Reston, VA. ;Montgomery (James M.), Inc., Pasadena, CA.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Year Published 1986
Report Number EPA-68-02-1821; EPA/600/J-86/306;
Stock Number PB87-176913
Additional Subjects Sludge ; Digestion(Decomposition) ; Microorganisms ; Aeorbic processes ; Anaerobic processes ; Sewage treatment ; Water pollution ; Sludge disposal ; Activated sludge process ; Reprints ; DDS(Dual Digestion System) ; Sludge digestion ; Sludge treatment
Library Call Number Additional Info Location Last
NTIS  PB87-176913 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 11p
The effectiveness of the dual digestion system (DDS) to destroy pathogenic microorganisms was evaluated at a full-scale treatment facility. The DDS incorporates a pure oxygen aerobic digester (1-day detention time) followed by an anaerobic digester (8-day detention time). Heat biological oxidation is conserved in the aerobic step to achieve thermophilic temperatures. Destruction of three pathogen indicators (total coliform, fecal coliform, and fecal streptococci) and a pathogenic bacteria (Salmonella spp.) were measured during three 10-week sampling periods. Conventional measures of digester performance were also analyzed. The performance of DDS in producing a stabilized, pathogen-free sludge was compared to accepted pathogen reduction technologies. (Copyright (c) 1986 by Journal WPCF.)