HEAVY METAL-AFFECTED DEGRADATION OF BUTYRIC-ACID IN ANAEROBIC-DIGESTION

Authors
Citation
Cy. Lin et al., HEAVY METAL-AFFECTED DEGRADATION OF BUTYRIC-ACID IN ANAEROBIC-DIGESTION, Bioresource technology, 65(1-2), 1998, pp. 159-161
Citations number
13
Categorie Soggetti
Energy & Fuels","Biothechnology & Applied Migrobiology",Agriculture
Journal title
ISSN journal
09608524
Volume
65
Issue
1-2
Year of publication
1998
Pages
159 - 161
Database
ISI
SICI code
0960-8524(1998)65:1-2<159:HMDOBI>2.0.ZU;2-L
Abstract
The accumulation of both forms of butyric acid (HBu) has been used as an indicator of digester failure. However; the present experimental re sults indicated that the normal- and iso- HBu-degradation activities o f the methanogens increase by 14-25% and 17-43%, respectively, for eac h gram of the biomass coming into contact with 0.02-3.89 mg of Mn, Zn, Ni, Fe and Cu. These results imply that in the presence of these heav y metals care should be taken in using HBu accumulation as an indicato r of digester failure. (C) 1998 Elsevier Science Ltd. All rights reser ved.