ALTERNATIVE ELECTRON-ACCEPTORS IN MICROBIAL COAL-CONVERSION WASTE-WATER TREATMENT

Citation
F. Eismann et al., ALTERNATIVE ELECTRON-ACCEPTORS IN MICROBIAL COAL-CONVERSION WASTE-WATER TREATMENT, Applied microbiology and biotechnology, 46(5-6), 1996, pp. 604-609
Citations number
24
Categorie Soggetti
Biothechnology & Applied Migrobiology
ISSN journal
01757598
Volume
46
Issue
5-6
Year of publication
1996
Pages
604 - 609
Database
ISI
SICI code
0175-7598(1996)46:5-6<604:AEIMCW>2.0.ZU;2-E
Abstract
Biotreatment experiments with solutions of autoxidized phenolic compou nds as well as coal-conversion wastewater stored for 30 years and rich in humic matter were performed under nitrate-reducing, sulphate-reduc ing and methanogenic conditions. The removal of total organic carbon i n fractions of different molecular mass and of monomeric phenolic comp ounds in the wastewater was determined. A comparison of biotransformat ion potentials and rates indicated a relationship between these aspect s and the availability of electron accepters in the system. The capaci ties of the microbial consortia increased significantly with the energ y microorganisms could gain from their respective respiration process and can be expressed by the order: aerobic process - nitrate reduction - sulphate reduction - methanogenesis.