Record Display for the EPA National Library Catalog


Main Title Controlling factors in methane fermentation : final report, 1 September 1968 through 31 August 1969 /
Author Speece, Richard E. ; Clar, Ralph
Other Authors
Author Title of a Work
Clark, Ralph H.
CORP Author New Mexico State Univ., University Park. Engineering Experiment Station.
Publisher Engineering Experiment Station, New Mexico State University,
Year Published 1970
Report Number NMSU EES 61 70; FWPCA-WP-01001; EPA-WQO-17070; 04097,; 17070-06/69
Stock Number PB-206 237
OCLC Number 54442251
Subjects Anaerobic bacteria ; Methane ; Water--Purification
Additional Subjects ( Sewage treatment ; Fermentation) ; ( Fermentation ; pH control) ; ( Anaerobic bacteria ; Sewage treatment) ; Anaerobic processes ; Spirillaceae ; Reaction kinetics ; Acetates ; Reviews ; Methanobacterium
Library Call Number Additional Info Location Last
EMBD MF PB-206 237 NRMRL/GWERD Library/Ada,OK 06/18/2004
NTIS  PB-206 237 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 237 pages : illustrations ; 28 cm.
Conventional wastewater treatment plants generally use an anaerobic digester to stabilize the wastewater settleable solids and the excess microbial solids produced within the plant. The anaerobic fermentation process is very pH dependent. The methane bacteria which are responsible for the final step in the anaerobic fermentation process and are probably responsible for most operational problems as they are considered to be very pH sensitive. Because of this sensitivity, the pH tolerance of the acetate fermenting methane bacteria was investigated using laboratory anaerobic filters. The research involved the following studies: determining what relative rate of methane production can be achieved at various pH levels, determining the effect of the non-optimum pH duration on the fermentation rate, and determining what fermentation recovery time can be expected from non-optimum pH levels and what effect the non-optimum pH duration has on this recovery.
Includes bibliographical references (pages 134-141). Microfiche.