Structure and Functional Analysis of the Microbial Community in an Aerobic: Anaerobic Sequencing Batch Reactor (SBR) with no Phosphorus Removal

2001 ◽  
Vol 24 (4) ◽  
pp. 597-609 ◽  
Author(s):  
Yun H. Kong ◽  
Michael Beer ◽  
Robert J. Seviour ◽  
Kenneth C. Lindrea ◽  
Gavin N. Rees
Keyword(s):  
Functional Analysis ◽  
Microbial Community ◽  
Phosphorus Removal ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Anaerobic Sequencing Batch Reactor

Inhibitory effect of erythromycin, tetracycline and sulfamethoxazole antibiotics on anaerobic treatment of a pharmaceutical wastewater

2015 ◽  
Vol 71 (11) ◽  
pp. 1620-1628 ◽  
Author(s):  
Sevcan Aydın ◽  
Bahar Ince ◽  
Orhan Ince
Keyword(s):  
Microbial Community ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Anaerobic Treatment ◽  
Inhibitory Effect ◽  
Organic Content ◽  
Pharmaceutical Wastewater ◽  
Research Support ◽  
Anaerobic Sequencing Batch Reactor ◽  
High Organic Content

Pharmaceuticals enter ecosystems, which causes changes to microbial community structure and development of resistant genes. Anaerobic treatments can be an alternative application for treatment of pharmaceutical wastewaters, which has high organic content. This study aims to develop an understanding of the effects of sulfamethoxazole–erythromycin–tetracycline (ETS), sulfamethoxazole–tetracycline (ST), erythromycin–sulfamethoxazole (ES) and erythromycin–tetracycline (ET) combinations on the anaerobic treatment of pharmaceutical industry wastewater. The results of this investigation revealed that bacteria have a competitive advantage over archaea under all antibiotic combinations. The ET reactor showed a better performance compared to other reactors; this could be due to antagonistic effects of sulfamethoxazole. Acute inhibition in the microbial community was also strongly affected by antibiotics concentrations. This indicated that the composition of the microbial community changed in association with anaerobic sequencing batch reactor performances. The results of this research support the idea that an acute test could be used to control and improve the anaerobic treatment system.

Dynamics of a microbial community exposed to several concentrations of 2-chlorophenol in an anaerobic sequencing batch reactor

2015 ◽  
Vol 36 (14) ◽  
pp. 1776-1784 ◽  
Author(s):  
Lizeth Beristain-Montiel ◽  
Sergio Martínez-Hernández ◽  
Flor de María Cuervo-López ◽  
Florina Ramírez-Vives
Keyword(s):  
Microbial Community ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Anaerobic Sequencing Batch Reactor

Functional analysis of microbial community in phenol-degrading aerobic granules cultivated in SBR

2004 ◽  
Vol 50 (10) ◽  
pp. 229-234 ◽  
Author(s):  
S.T.-L. Tay ◽  
H.-L. Jiang ◽  
J.-H. Tay
Keyword(s):  
Functional Analysis ◽  
Microbial Community ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Phenol Degradation ◽  
High Strength ◽  
Aerobic Granules ◽  
Oxygen Utilization ◽  
Flocculation Activity ◽  
Granule Structure

Phenol-degrading aerobic granules were cultivated in a sequencing batch reactor with an influent phenol concentration of 500 mg l−1. Eight strains were isolated from aerobic granules to characterize the functional redundancy of the microbial community in the granules. The specific oxygen utilization kinetics show the eight strains possessed different phenol-degrading activities, with half-saturation constants (Ks) ranging from 0.4 to 70.5 mg phenol l−1. Two isolates belonging to dominant populations expressed differing functions. The first strain was linked to the function of phenol degradation as this strain has the highest phenol-degrading ability among all isolates, while the second strain was linked to the maintenance of the granule structure because of its strong self-flocculation activity. This study could be used to exploit the granule-based system for treating high-strength wastewaters.

Monitoring of the microbial community of a sequencing batch reactor bioaugmented to improve its phosphorus removal capabilities

2001 ◽  
Vol 43 (3) ◽  
pp. 1-8 ◽  
Author(s):  
P. Dabert ◽  
A. Fleurat-Lessard ◽  
E. Mounier ◽  
J.-P. Delgenès ◽  
R. Moletta ◽  
...  
Keyword(s):  
Microbial Community ◽  
Microbial Communities ◽  
Phosphorus Removal ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Molecular Technique ◽  
Biological Phosphorus Removal ◽  
Phosphorus Accumulation ◽  
Finger Printing ◽  
Biological Phosphorus

The acclimatisation of an activated sludge to enhanced biological phosphorus removal conditions was followed after and without bioaugmentation with a low amount of phosphorus-accumulating sludge. Phosphorus removal yields were monitored by conventional analytical methods and microbial communities evolutions were followed by a finger printing molecular technique (PCR-SSCP). While the benefit of the bioaugmentation seems real at the level of the reactor parameters, bioaugmentation speeded up the installation of good and stable phosphorus removal yield, the establishment of the inoculated microbial community in the bioaugmented reactor is still unclear. Both the bioaugmented and the control microbial communities evolved in a similar way to end up with apparently comparable populations. At the time of the experiment, the results suggest that the microbial community inoculated for the bioaugmentation did not establish in the reactor but compensated for phosphorus accumulation until the acclimatisation of an endogenous microbial community arose.

Effect of low pH and metal content on microbial community structure in an anaerobic sequencing batch reactor treating acid mine drainage

2019 ◽  
Vol 141 ◽  
pp. 105860 ◽  
Author(s):  
Alessandra Giordani ◽  
Renata Piacentini Rodriguez ◽  
Giselle Patrícia Sancinetti ◽  
Elize Ayumi Hayashi ◽  
Euzébio Beli ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Acid Mine Drainage ◽  
Microbial Community Structure ◽  
Metal Content ◽  
Sequencing Batch Reactor ◽  
Mine Drainage ◽  
Batch Reactor ◽  
Low Ph ◽  
Anaerobic Sequencing Batch Reactor
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