Record Display for the EPA National Library Catalog


Main Title Actinomycetes of sewage-treatment plants /
Author Lechevalier, Hubert A.,
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory,
Year Published 1975
Report Number EPA-600/2-75-031; EPA-R-802003; EPA-ROAP-21ASR
Stock Number PB-245 914
OCLC Number 01911500
Subjects Actinobacteria ; Sewage--Purification ; Actinomycetales ; Sewage disposal plants
Additional Subjects Actinomycetales ; Sewage treatment ; Activated sludge process ; Bacteria ; Microorganisms ; Microbiology ; Growth ; Foam ; Recommendations ; Cultures(Biology) ; Inhibitors ; Tables(Data) ; Experimental data ; Physiology ; Culture medium ; Morphology ; Biochemistry ; Chemical analysis
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-2-75-031 Headquarters Library/Washington,DC 06/11/2012
EJBD  EPA 600-2-75-031 c.1 Headquarters Library/Washington,DC 05/10/2013
ELBD  EPA 600-2-75-031 AWBERC Library/Cincinnati,OH 01/03/2003
ESAD  EPA 600-2-75-031 Region 10 Library/Seattle,WA 07/31/2017
NTIS  PB-245 914 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation viii, 63 pages ; 27 cm
In some sewage-treatment plants of the activated sludge type, a thick foam may be formed at the surface of the secondary aeration and settling tanks. Such foams have often been found to be rich in actinomycetes. The report covers the work done on the problem between April 1971 and May 1974. Over 250 strains of actinomycetes have been isolated from foams or activated sludge from 19 different sewage-treatment plants located in 8 states. The actinomycete most commonly associated with foams is a previously undescribed Nocardia which has been given the name N. amarae. It has been demonstrated experimentally in the laboratory that N. amarae may cause the kind of foam observed in the plants. Factors affecting the growth of N. amarae have been studied and a method of control of the foam by addition of digester supernatant to the activated sludge is proposed.
Grant no. R802003 (17050 GUJ); program element no. 1BB043. Report prepared by Waksman Institute of Microbiology, Rutgers, the State University of New Jersey, New Brunswick, New Jersey. Includes bibliographical references (pages 59-61).