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Electrohydrogenesis or biocatalyzed electrolysis is the name given to a process for generating hydrogen gas from organic matter being decomposed by bacteria. [1] This process uses a modified fuel cell to contain the organic matter and water. A small amount, 0.2–0.8 V [2] of electricity is used, the original article reports an overall energy ...
Electrohydrogenesis is used in microbial fuel cells to produce hydrogen from organic matter. [142] Biological hydrogen can be produced in an algae bioreactor. In the late 1990s it was discovered that if the algae is deprived of sulfur it will switch from the production of oxygen, i.e. normal photosynthesis, to the production of hydrogen. [143]
Bioreactor. A bioreactor is any manufactured device or system that supports a biologically active environment. [ 1 ] In one case, a bioreactor is a vessel in which a chemical process is carried out which involves organisms or biochemically active substances derived from such organisms. This process can either be aerobic or anaerobic.
Biohydrogen is H 2 that is produced biologically. [ 1 ] Interest is high in this technology because H 2 is a clean fuel and can be readily produced from certain kinds of biomass, [ 2 ] including biological waste. [ 3 ]
Membrane bioreactors are combinations of membrane processes like microfiltration or ultrafiltration with a biological wastewater treatment process, the activated sludge process. These technologies are now widely used for municipal and industrial wastewater treatment. [1] The two basic membrane bioreactor configurations are the submerged ...
One such technological development was the hollow fiber bioreactor. Hollow fiber bioreactors are used to generate high concentrations of cell-derived products including monoclonal antibodies, recombinant proteins, growth factors, viruses and virus-like particles. This is possible because the semi-permeable hollow fiber membranes allow for the ...
Electrofuels are hydrocarbons that are artificially synthesized from hydrogen and carbon dioxide. Carbon dioxide can be extracted from three different sources: from ambient air (direct air capture), from point sources such as power plants (carbon capture and utility) or from biomass. To maximize climate-friendly production, atmospheric capture ...
Secondary treatment is defined as the "removal of biodegradable organic matter (in solution or suspension) and suspended solids. Disinfection is also typically included in the definition of conventional secondary treatment." [ 1 ]: 11 Biological nutrient removal is regarded by some sanitary engineers as secondary treatment and by others as ...
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