CRITERIA TO ASSESS THE OPERATION OF ANAER OBIC PURIFICATION INSTALLATIONS FOR SACCHARIDE-CONTAINING WASTE-WATER .2. SPECIAL CONSIDERATION OF THE METHANE STAGE

Authors
Citation
S. Frenzel et W. Mauch, CRITERIA TO ASSESS THE OPERATION OF ANAER OBIC PURIFICATION INSTALLATIONS FOR SACCHARIDE-CONTAINING WASTE-WATER .2. SPECIAL CONSIDERATION OF THE METHANE STAGE, Zuckerindustrie, 121(2), 1996, pp. 91-99
Citations number
31
Categorie Soggetti
Food Science & Tenology
Journal title
ISSN journal
03448657
Volume
121
Issue
2
Year of publication
1996
Pages
91 - 99
Database
ISI
SICI code
0344-8657(1996)121:2<91:CTATOO>2.0.ZU;2-2
Abstract
Optimization of the anaerobic degradation processiIn sugar factory ana erobic installations presupposes the well-coordinated separation of th e acidification stage (including hydrolysis) and the methane stage, re sulting in the optimal operating points for both degradation stages. I n practice, the process stages acidification and methanogenesis can ne ver be totally separated. Operating conditions may give rise to a situ ation in which methane is already being generated in the acidification stage or in which acidification is incomplete and unacidified compoun ds introduced into the methane stage must be acidified in that phase. The optimal point of the acidification stage was discussed in the firs t part of this paper (Zuckerind. 120 (1995) 400-406). This second part demonstrates the possibilities, by way of determining the contents of specific coenzymes in the undifferentiated biomass of the methane sta ge, of describing the composition of acidifying and methanizing bacter ia of this mixed population. This made it possible to determine the qu alities of inoculation mud and to observe the adaptation processes of the inoculation mud employed in anaerobic reactors. Analyses of the co enzyme F-420 content in the biomass of anaerobic muds from sugar facto ry waste water reactors showed, after sufficient adaptation time, a co enzyme F-420 content of 213-258 nmol/g organic dry substance.