Topic
Bioreactor
About: Bioreactor is a research topic. Over the lifetime, 9980 publications have been published within this topic receiving 192690 citations. The topic is also known as: bioreactors.
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TL;DR: An innovative process based on ozone-enhanced biological degradation, carried out in an aerobic granular biomass system (SBBGR--Sequencing Batch Biofilter Granular Reactor), was tested at pilot scale for tannery wastewater treatment chosen as representative of industrial recalcitrant wastewater.
60 citations
TL;DR: In this article, a fixed structured bed (ABFSB) was used for simultaneous sulfate reduction and organic matter removal in an anaerobic bioreactor with a fixed structure.
Abstract: BACKGROUND
The anaerobic treatment of wastewaters is usually applied to remove the organic matter, converting it into methane. The presence of sulfate in some wastewaters produces sulphide during anaerobic biological processing, which is known as an inhibitor of biological processes. In this study, a novel anaerobic bioreactor with a fixed structured bed (ABFSB) was subjected to simultaneous sulfate reduction and organic matter removal.
RESULTS
Synthetic wastewater was used as organic substrate and the bioreactor performance was studied with different COD/[SO42−] ratios: 0.72, 1.7, 3.5 and 6.1. The highest COD and sulfate removal efficiencies were achieved at a COD/[SO42−] ratio of 1.7 (82 and 89%, respectively). Also, in this condition a greater overall kinetic apparent parameter (0.96 h−1) was observed. The kinetic parameters indicate that the sulfate reducing bacteria played an important role in the organic matter removal process over a range of COD/[SO42−] ratios from 6.1 to 1.7.
CONCLUSIONS
Concerning the organic matter removal, the best synergy between sulfate reduction bacteria and metanogenic archaea communities was achieved in COD/[SO42−] ∼1.7. The ABSFB was suitable for the simultaneous organic matter and sulfate removal, especially when the COD/[SO42−] ratio was 1.7, but demonstrating a stable and efficient process in all conditions studied. © 2013 Society of Chemical Industry
60 citations
TL;DR: This is the first report of a successful cultivation of a microbe in a Wave Bioreactor® comparing conventional seed expansion in shake flasks and stirred tank bioreactors.
Abstract: The Wave Bioreactoris widely used in cell culture due to the benefits of disposable technology and ease of use. A novel cellbag was developed featuring a frit sparger to increase the system's oxygen transfer. The purpose of this work was to evaluate the sparged cellbag for yeast cultivation. Oxygen mass transfer studies were conducted in simulated culture medium and the sparged system's maximum oxygen mass transfer coefficient (kLa) was 38 h -1 . These measurements revealed that the sparger was ineffective in increasing the oxygen transfer capacity. Cultures of Saccharomyces cerevisiae were successfully grown in oxygen-blended sparged and oxygen-blended standard cellbags. Under steady state conditions for both cellbag designs, kLa values as high as 60 h -1 were obtained with no difference in growth characteristics. This is the first report of a successful cultivation of a microbe in a Wave Bioreactorcomparing conventional seed expansion in shake flasks and stirred tank bioreactors.
60 citations
TL;DR: Experiments have been carried out in a moving bed biofilm reactor operated as a sequencing batch reactor (SBR), with simultaneous nitrification, phosphorus uptake and denitrification in the aerobic phase.
60 citations
TL;DR: UV-VIS spectrum analysis of the treated and untreated samples showed the formation of the degradation products of dyes due to the action of laccase, and the developed process can be made useful for on site industrial application.
60 citations