Alternative electron acceptors in microbial coal-conversion wastewater treatment

被引:4
作者
Eismann, F [1 ]
Becker, F [1 ]
Kuschk, P [1 ]
Stottmeister, U [1 ]
机构
[1] UMWELTFORSCHUNGZENTRUM LEIPZIG HALLE GMBH, SEKT SANIERUNGSFORSCH, D-04318 LEIPZIG, GERMANY
关键词
D O I
10.1007/s002530050868
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Biotreatment experiments with solutions of autoxidized phenolic compounds as well as coal-conversion wastewater stored for 30 years and rich in humic matter were performed under nitrate-reducing, sulphate-reducing and methanogenic conditions. The removal of total organic carbon in fractions of different molecular mass and of monomeric phenolic compounds in the wastewater was determined. A comparison of biotransformation potentials and rates indicated a relationship between these aspects and the availability of electron accepters in the system. The capacities of the microbial consortia increased significantly with the energy microorganisms could gain from their respective respiration process and can be expressed by the order: aerobic process - nitrate reduction - sulphate reduction - methanogenesis.
引用
收藏
页码:604 / 609
页数:6
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