

Author: Baker Katherine H Redmond Brady Herson Diane S
Publisher: Water Environment Federation
ISSN: 1061-4303
Source: Water Environment Research, Vol.77, Iss.4, 2005-07, pp. : 423-424
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Two most probable number (MPN) methods—lauryl tryptose broth with Escherichia coli broth confirmation and direct A-1 broth incubation (A-1)—were compared for the enumeration of fecal coliform in lime-treated biosolid. Fecal coliform numbers were significantly higher using the A-1 method. Analysis of positive A-1 tubes, however, indicated that a high percentage of these were false positives. Therefore, the use of A-1 broth for 40 CFR Part 503 Pathogen Reduction (CFR, 1993) compliance testing is not recommended.
Related content








Kinetics of Fecal Coliform Removal in Constructed Wetlands
By Khatiwada N.R. Polprasert C.
Water Science and Technology, Vol. 40, Iss. 3, 1999-01 ,pp. :


Biosolids Process Enhancements for Fecal Coliform Reduction
By Williams Todd O. Bowen Rhonda L.
Water Practice, Vol. 1, Iss. 4, 2007-09 ,pp. :