Results 201 to 210 of about 76,068 (258)

Gas controlled hydrogen fermentation

Bioresource Technology, 2012
Acidogenic fermentation is an anaerobic process of double purpose, while treating organic residues it produces chemical compounds, such as hydrogen, ethanol and organic acids. Therefore, acidogenic fermentation arises as an attractive biotechnology process towards the biorefinery concept.
Bastidas Oyanedel, Juan Rodrigo, Mohd-Zaki, Zuhaida, Zeng, Raymond J., Bernet, Nicolas, Pratt, Steven, Steyer, Jean-Philippe, Batstone, Damien John   +6 more
openaire   +6 more sources

Gas transfer in microgravity fermentations

Acta Astronautica, 1986
Fermentations performed under microgravity conditions may be used in future long duration space missions for recycling expendable life support materials. These fermentations will differ from similar fermentations performed at one gravity in the manner in which gas transfer in the fermentor is carried out.
B G, Thompson, D, Ward
openaire   +2 more sources

Bacterial synthesis gas (syngas) fermentation

Environmental Technology, 2013
Acetogenic bacteria employing the Wood-Ljungdahl pathway can be used as biocatalysts in syngas fermentation for the production ofbiofuels such as ethanol or butanol as well as biocommodities such as acetate, lactate, butyrate, 2,3 butanediol, and acetone.
Frank R, Bengelsdorf, Melanie, Straub, Peter, Dürre   +2 more
openaire   +2 more sources

Fermentation of natural gas with a cyclone column fermenter

Canadian Journal of Microbiology, 1969
A mixed flora, capable of using natural gas as a carbon substrate, was derived from a laboratory sewage sludge. Fermentations in a cyclone column fermenter, on a 1:1 natural gas/air mixture, resulted in a doubling time of 4.6 h and production of 0.065 mg dry cell mass per square centimeter interfacial area per hour.
openaire   +2 more sources

Gas chromatography as an aid in fermentation studies

Analytical Biochemistry, 1965
Abstract A gas chromatographic method for the determination of fermentation products has been developed. The method has been applied to a Clostridium butylicum fermentation. The method permits greater speed and simplicity of analysis than conventional methods.
R, Turner, M, Gilmour
openaire   +2 more sources

Bioreactors for synthesis gas fermentations

Resources, Conservation and Recycling, 1991
Abstract Bacterial cultures have been isolated for the conversion of synthesis gas (CO, H2 and CO2) into ethanol or methane. These heterogeneous reactions require the transport of substrate through the gas phase, across the interface into the liquid phase, and to the solid microorganisms.
K.T. Klasson, M.D. Ackerson, E.C. Clausen, J.L. Gaddy   +3 more
openaire   +1 more source

Gas Fermentation Coupled with Water Remediation

Environmental Science & Technology Letters
Gasification is a promising method for extracting carbon from nearly all types of biowastes, producing gaseous products containing H2, CO, and CO2. This study demonstrates a novel combination of gas fermentation and water remediation. On the basis of a membrane biofilm reactor fed with a gaseous mixture of H2 and CO2, the effective removal of nitrate (>
Chenkai Niu, Zhiqiang Zuo, Xinyu Zhao, Chunyu Lai, Danting Shi, Jia Meng, Tao Liu   +6 more
openaire   +3 more sources

Exploiting the potential of gas fermentation

Industrial Crops and Products, 2017
The use of gas fermentation for production of chemicals and fuels with lower environmental impact is a technology that is gaining increasing attention. Over 38 Gt of CO2 is annually being emitted from industrial processes, thereby contributing significantly to the concentration of greenhouse gases in the atmosphere.
Redl, Stephanie, Diender, Martijn, Jensen, Torbjørn Ølshøj, Machado de Sousa, Diana, Nielsen, Alex Toftgaard   +4 more
openaire   +3 more sources