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Correlation between microbial community and granule conductivity in anaerobic bioreactors for brewery wastewater treatment
- Source :
- Shrestha, P, Malvankar, N S, Werner, J, Franks, A, Rotaru, A-E, Shrestha, M, Liu, F, Nevin, K, Angenent, L & Lovley, D 2014, ' Correlation between microbial community and granule conductivity in anaerobic bioreactors for brewery wastewater treatment ', Bioresource Technology, vol. 174, pp. 306-310 . https://doi.org/10.1016/j.biortech.2014.10.004
- Publication Year :
- 2014
-
Abstract
- Prior investigation of an upflow anaerobic sludge blanket (UASB) reactor treating brewery wastes suggested that direct interspecies electron transfer (DIET) significantly contributed to interspecies electron transfer to methanogens. To investigate DIET in granules further, the electrical conductivity and bacterial community composition of granules in fourteen samples from four different UASB reactors treating brewery wastes were investigated. All of the UASB granules were electrically conductive whereas control granules from ANAMMOX (ANaerobic AMMonium OXidation) reactors and microbial granules from an aerobic bioreactor designed for phosphate removal were not. There was a moderate correlation (r = 0.67) between the abundance of Geobacter species in the UASB granules and granule conductivity, suggesting that Geobacter contributed to granule conductivity. These results, coupled with previous studies, which have demonstrated that Geobacter species can donate electrons to methanogens that are typically predominant in anaerobic digesters, suggest that DIET may be a widespread phenomenon in UASB reactors treating brewery wastes.
- Subjects :
- Environmental Engineering
Syntrophy
Bioengineering
Wastewater
Waste Disposal, Fluid
Water Purification
Bioreactors
Bioreactor
Anaerobiosis
Waste Management and Disposal
biology
Waste management
Bacteria
Ethanol
Sewage
Renewable Energy, Sustainability and the Environment
Chemistry
Alcoholic Beverages
Granule (cell biology)
Direct interspecies electron transfer
Electric Conductivity
General Medicine
Sequence Analysis, DNA
biology.organism_classification
Pulp and paper industry
Microbial population biology
Anammox
Sewage treatment
UASB reactor
conductive pili
Anaerobic exercise
Geobacter
Subjects
Details
- ISSN :
- 18732976
- Volume :
- 174
- Database :
- OpenAIRE
- Journal :
- Bioresource technology
- Accession number :
- edsair.doi.dedup.....ad519f041e11a7acb53368d8024764fa