Hybrid membrane distillation: Resource, nutrient and energy recovery

Corn stalk was used as a support to immobilize Clostridia beijerinckii ATCC 55025 in the fermentation process of acetone, butanol, and ethanol production. The effect of the dilution rate on solvent production was examined in a steady-state 20-day continuous flow operation. The maximum total solvent concentration of 8.99 g l−1 was obtained at a dilution rate of 0.2 h−1. Increasing the dilution rate between 0.2 and 1.0 h−1 resulted in an increased solvent productivity, and the highest solvent productivity was obtained at 5.06 g l−1 h−1 with a dilution rate of 1 h−1. The maximum solvent yield from glucose of 0.32 g g−1 was observed at 0.25 h−1. The cell adsorption and morphology change during the growth on corn stalk support were examined by the SEM.

Zhang, Y., Ma, Y., Yang, F., Zhang, C. (2009). Continuous acetone-butanol-ethanol production by corn stalk immobilized cells

Synthesis, characterization and antimicrobial activity of Schiff bases from chitosan and salicylaldehyde/TiO2 nanocomposite membrane

Clostridium species for fermentative hydrogen production: An overview

Clostridium sp. is a genus of anaerobic bacteria capable of metabolizing several substrates (monoglycerides, diglycerides, glycerol, carbon monoxide, cellulose, and more), into valuable products. Biofuels, such as ethanol and butanol, and several chemicals, such as acetone, 1,3-propanediol, and butyric acid, can be produced by these organisms through fermentation processes. Among the most well-known species, Clostridium carboxidivorans, C. ragsdalei, and C. ljungdahlii can be highlighted for their ability to use gaseous feedstocks (as syngas), obtained from the gasification or pyrolysis of waste material, to produce ethanol and butanol. C. beijerinckii is an important species for the production of isopropanol and butanol, with the advantage of using hydrolysate lignocellulosic material, which is produced in large amounts by first-generation ethanol industries. High yields of 1,3 propanediol by C. butyricum are reported with the use of another by-product from fuel industries, glycerol. In this context, several Clostridium wild species are good candidates to be used as biocatalysts in biochemical or hybrid processes. In this review, literature data showing the technical viability of these processes are presented, evidencing the opportunity to investigate them in a biorefinery context.

Clostridium sp. as Bio-Catalyst for Fuels and Chemicals Production in a Biorefinery Context

Coproduction of hydrogen and butanol by Clostridium acetobutylicum with the biofilm immobilized on porous particulate carriers

Ethanol mass transfer during pervaporation with PDMS membrane based on solution-diffusion model considering concentration polarization

Bioethanol production in vacuum membrane distillation bioreactor by permeate fractional condensation and mechanical vapor compression with polytetrafluoroethylene (PTFE) membrane.

Catalytic membrane micro-reactor with nano ZIF-8 immobilized in membrane pores for enhanced Knoevenagel reaction of Benzaldehyde and Ethyl cyanoacetate

Synergistic enhanced catalysis of micro-reactor with nano MnO2/ZIF-8 immobilized in membrane pores by flowing synthesis

Yuyang Wang

Papers

Coproduction of hydrogen and butanol by Clostridium acetobutylicum with the biofilm immobilized on porous particulate carriers

Ethanol mass transfer during pervaporation with PDMS membrane based on solution-diffusion model considering concentration polarization

Bioethanol production in vacuum membrane distillation bioreactor by permeate fractional condensation and mechanical vapor compression with polytetrafluoroethylene (PTFE) membrane.

Catalytic membrane micro-reactor with nano ZIF-8 immobilized in membrane pores for enhanced Knoevenagel reaction of Benzaldehyde and Ethyl cyanoacetate

Synergistic enhanced catalysis of micro-reactor with nano MnO2/ZIF-8 immobilized in membrane pores by flowing synthesis