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: The general performance of anaerobic digesters and the diversity of wastes that these can treat have been increasing steadily during the last decade as a result of new reactor designs, operating conditions, or the use of specialized microbial consortia.
Abstract: The general performance of anaerobic digesters and the diversity of wastes that these can treat have been increasing steadily during the last decade as a result of new reactor designs, operating conditions, or the use of specialized microbial consortia. This article illustrates a few examples of new or broader applications of anaerobic digestion to the treatment of sewage, slurries, industrial wastewater, and solid wastes. In the case of domestic sewage, the sustainability of the overall process is much improved by the adoption of an anaerobic pretreatment step, for example, an upflow sludge blanket (USB) reactor. New methods for nutrient removal need to be coupled with anaerobic digestion. These may include, for example, anaerobic ammonium oxidation (anammox) and chemical P precipitation. In terms of industrial wastewaters, new additives are being developed that help the anaerobic sludge deal with unbalanced or toxic wastewaters. Engineering of anaerobic sludge granules is a new area of research that ser...
112 citations
Patent•
26 Sep 2005TL;DR: In this article, the authors describe micro-scale bioreactors (microfermentors) for culturing cells, including an aeration membrane and a variety of sensing devices.
Abstract: The present invention microscale bioreactors (microfermentors) and microscale bioreactor arrays for use in culturing cells. The microfermentors include a vessel for culturing cells and means for providing oxygen to the interior of the vessel at a concentration sufficient to support cell growth, e.g., growth of bacterial cells. Depending on the embodiment, the microfermentor vessel may have various interior volumes of less than approximately 1 ml. The microfermentors may include an aeration membrane and optionally a variety of sensing devices. Methods of using the microfermentors, e.g., to select optimum cell strains or bioprocess parameters are provided. The microbioreactors having a variety of different designs, some of which incorporate active fluid mixing and/or have the capability to operate in batch, fed-batch, or continuous mode. In certain embodiments the microreactors operate as microchemostats. Methods for culturing cells under chemostat conditions in a microbioreactor are also provided.
112 citations
TL;DR: The treatment provided satisfactory results and presents a feasible technology for the treatment of hydrocarbon-rich wastewater from petrochemical industries and petroleum refineries.
112 citations
TL;DR: Significant differences in structure of the Bacteria communities were observed amongst the different fouling layers analyzed in the UASB membranes, particularly following a chemical cleaning step (NaClO), while the Archaea communities retained more similarity in all samples.
111 citations
TL;DR: Bacterial community analysis by denatured gradient gel electrophoresis indicates a transition in bacterial composition in CSTR under different HRT operation, indicating that the performance of H2 production seemed to be in close connection with the bacterial community structure.
111 citations