Filamentous bacteria existence in aerobic granular reactors

被引:62
作者
Figueroa, M. [1 ]
Val del Rio, A. [1 ]
Campos, J. L. [1 ]
Mendez, R. [1 ]
Mosquera-Corral, A. [1 ]
机构
[1] Univ Santiago de Compostela, Inst Technol, Dept Chem Engn, Santiago De Compostela 15782, Galicia, Spain
关键词
Aerobic granulation; Chloroflexi; Industrial wastewater; Meganema perideroedes; Sphaerotilus natans; Thiothrix; WASTE-WATER TREATMENT; SEQUENCING BATCH REACTORS; TARGETED OLIGONUCLEOTIDE PROBES; ACTIVATED-SLUDGE; TREATMENT PLANTS; BULKING-SLUDGE; ECOPHYSIOLOGY; SELECTION; THIOTHRIX; STABILITY;
D O I
10.1007/s00449-014-1327-x
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
Filamentous bacteria are associated to biomass settling problems in wastewater treatment plants. In systems based on aerobic granular biomass they have been proposed to contribute to the initial biomass aggregation process. However, their development on mature aerobic granular systems has not been sufficiently studied. In the present research work, filamentous bacteria were studied for the first time after long-term operation (up to 300 days) of aerobic granular systems. Chloroflexi and Sphaerotilus natans have been observed in a reactor fed with synthetic wastewater. These filamentous bacteria could only come from the inoculated sludge. Thiothrix and Chloroflexi bacteria were observed in aerobic granular biomass treating wastewater from a fish canning industry. Meganema perideroedes was detected in a reactor treating wastewater from a plant processing marine products. As a conclusion, the source of filamentous bacteria in these mature aerobic granular systems fed with industrial effluents was the incoming wastewater.
引用
收藏
页码:841 / 851
页数:11
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