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A Novel Anaerobic Electrochemical Membrane Bioreactor .

A Novel Anaerobic Electrochemical Membrane Bioreactor .

A new anaerobic treatment system that combined a microbial electrolysis cell (MEC) with membrane filtration using electrically conductive, porous, nickel-based hollow-fiber membranes (Ni-HFMs) was developed to treat low organic strength solution and recover energy in the form of biogas. This new system is called an anaerobic electrochemical membrane bioreactor (AnEMBR). The Ni-HFM .

Anaerobic production of hydrogen and other chemical .

Anaerobic production of hydrogen and other chemical .

Aug 06, 2013 · What is claimed: 1. An anaerobic fermentation apparatus using a population of substantially purified anaerobic bacterial strain for anaerobically fermenting a biomass into a chemical product comprising: (i) a sterilization and deoxygenation system; (ii) an anaerobic digester containing a population of substantially purified anaerobic bacteria and equipped with an anaerobic digester .

Microbial Bioremediation and Different Bioreactors Designs .

Microbial Bioremediation and Different Bioreactors Designs .

Sep 17, 2018 · Microbial remediation of pollutants involves the use of microorganisms to degrade pollutants either completely to water and carbon dioxide (for organic pollutants) or into less toxic forms. In the case of nonbiodegradable inorganic compounds, bioremediation takes the form of bioaccumulation or conversion of one toxic species to a less toxic form for example Cr(VI) is converted to less toxic (III).

Landfill gas and biogas - U.S. Energy Information .

Landfill gas and biogas - U.S. Energy Information .

Landfills for municipal solid waste are a source of biogas. Biogas is produced naturally by anaerobic bacteria in municipal-solid-waste landfills and is called landfill gas. Landfill gas with a high methane content can be dangerous to people and the environment because methane is flammable. Methane is also a strong greenhouse gas. Biogas .

Methane-yielding microbial communities processing lactate .

Methane-yielding microbial communities processing lactate .

Apr 21, 2018 · Anaerobic digestion, whose final products are methane and carbon dioxide, ensures energy flow and circulation of matter in ecosystems. This naturally occurring process is used for the production of renewable energy from biomass. Lactate, a common product of acidic fermentation, is a key intermediate in anaerobic digestion of biomass in the environment and biogas plants.

Hydrogen Production in Bioreactors: Current Trends .

Hydrogen Production in Bioreactors: Current Trends .

Jan 01, 2012 · Hydrogen production from H 2 O at an average rate of 125 ml∙ g dry weight 1 ∙ h -1 was observed for more than 8 months. Figure 1. Schematic diagram of a hollow-fiber bioreactor for continuous shifting of H 2 O/CO into H 2 by Rubrivivax gelatinosus CBS.

Continuous two-step anaerobic digestion (TSAD) of organic .

Continuous two-step anaerobic digestion (TSAD) of organic .

Jul 04, 2019 · Experimental tests on continuous two-stage anaerobic digestion (TSAD) were conducted, to assess its energetic performance, using organic market waste as a substrate. The systems were tested to ascertain the effects of external stressors, which allow the separation into two different microorganism consortia, that is, hydrogen-producing bacteria and hydrogen-consuming bacteria, to be maintained.

Electrochemically Assisted Microbial Production of .

Electrochemically Assisted Microbial Production of .

Apr 22, 2005 · Hydrogen production via bacterial fermentation is currently limited to a maximum of 4 moles of hydrogen per mole of glucose, and under these conditions results in a fermentation end product (acetate; 2 mol/mol glucose) that bacteria are unable to further convert to hydrogen. It is shown here that this biochemical barrier can be circumvented by generating hydrogen gas from acetate using a .

Using Anaerobic Biomass Digestion to Produce Hydrogen and .

Using Anaerobic Biomass Digestion to Produce Hydrogen and .

For many years, hydrogen has been considered as an alternative to fossil fuels. Now, Scientists are aiming to develop an environmentally friendly method to produce hydrogen from biomass by optimizing anaerobic digestion systems.1 Climate change, dwindling fuel resources and energy prices have spearheaded intensive efforts to detect and optimize alternative fuel options.

Cultivable microbial community in 2-km-deep, 20-million .

Cultivable microbial community in 2-km-deep, 20-million .

Feb 19, 2019 · Photographs and schematic diagram of the DHS bioreactor system used in this study. The photographs on the right-hand side show sponge .

Continuous two-step anaerobic digestion (TSAD) of organic .

Continuous two-step anaerobic digestion (TSAD) of organic .

Jul 04, 2019 · Experimental tests on continuous two-stage anaerobic digestion (TSAD) were conducted, to assess its energetic performance, using organic market waste as a substrate. The systems were tested to ascertain the effects of external stressors, which allow the separation into two different microorganism consortia, that is, hydrogen-producing bacteria and hydrogen-consuming bacteria, to be maintained.

Batch process for bio-hydrogen production on small scale .

Batch process for bio-hydrogen production on small scale .

Source of inoculum was used is POME sludge as hydrogen producing bacteria. A batch reactor was found producing higher hydrogen at optimum parameter of pH 5.5 and 10% POME sludge (w/v) with maximum hydrogen production yield of 5988.96 mL H 2 / L-med and maximum hydrogen percentage in the biogas of 36% were obtained at pH 5.5.

US20110033908A1 - Methods for selectively producing .

US20110033908A1 - Methods for selectively producing .

The present invention provides a method for selective production of hydrogen and methane from a biomass feedstock in a reactor vessel maintained under anaerobic conditions by controlling moisture concentration in the reactor vessel. The method comprises the steps of introducing a biomass feedstock into the reactor vessel maintained under anaerobic conditions; introducing a bacterial inoculum .

A comparative study of anaerobic fixed film baffled .

A comparative study of anaerobic fixed film baffled .

May 31, 2017 · The logical reasons to use anaerobic treatment processes can be explained by considering the advantages of these processes which are related to their low energy demand, less sludge production, bioenergy (methane and hydrogen) production, and low nutrient requirement [31,32,33,34,35,36].

Acetate Production from Oil under Sulfate-Reducing .

Acetate Production from Oil under Sulfate-Reducing .

Oil production by water injection can cause souring in which sulfate in the injection water is reduced to sulfide by resident sulfate-reducing bacteria (SRB). Sulfate (2 mM) in medium injected at a rate of 1 pore volume per day into upflow bioreactors containing residual heavy oil from the Medicine Hat Glauconitic C field was nearly completely reduced to sulfide, and this was associated with .

Processes of Waste Water Treatment: 4 Process (With Diagram)

Processes of Waste Water Treatment: 4 Process (With Diagram)

This article throws light upon the four processes of waste water treatment. The four processes are: (1) Preliminary Treatment (2) Primary Treatment (3) Secondary or Biological Treatment and (4) Tertiary or Advanced Treatment. 1. Preliminary Treatment: . As already stated, preliminary treatment involves the removal of floating materials (leaves, papers, rags) and settleable inorganic solids .

Acetate Production from Oil under Sulfate-Reducing .

Acetate Production from Oil under Sulfate-Reducing .

Oil production by water injection can cause souring in which sulfate in the injection water is reduced to sulfide by resident sulfate-reducing bacteria (SRB). Sulfate (2 mM) in medium injected at a rate of 1 pore volume per day into upflow bioreactors containing residual heavy oil from the Medicine Hat Glauconitic C field was nearly completely reduced to sulfide, and this was associated with .

(PDF) Poultry Slaughterhouse Wastewater Treatment Plant .

(PDF) Poultry Slaughterhouse Wastewater Treatment Plant .

anaerobic bioreactor. Keywords . Fig. 4. Schematic diagram of a UASB bioreactor. . Poultry meat is a good source of animal protein, and is affordable for many low-income families in developing .

Effect of hydraulic retention time on biohydrogen .

Effect of hydraulic retention time on biohydrogen .

necessary components for hydrogen production by anaerobic mixed microflora. Then, the effect of HRT by using raw POME on hydrogen productivity and stability of ASBR was investi-gated. Accordingly, major parameters of hydrogen production rate, hydrogen production yield, COD removal efficiency and solublemetaboliteproductswere measured at .

Electrochemically Assisted Microbial Production of .

Electrochemically Assisted Microbial Production of .

Apr 22, 2005 · Hydrogen production via bacterial fermentation is currently limited to a maximum of 4 moles of hydrogen per mole of glucose, and under these conditions results in a fermentation end product (acetate; 2 mol/mol glucose) that bacteria are unable to further convert to hydrogen. It is shown here that this biochemical barrier can be circumvented by generating hydrogen gas from acetate using a .

PRODUCTION OF BIOGAS AND FATTY ACIDS PHASE .

PRODUCTION OF BIOGAS AND FATTY ACIDS PHASE .

Schematic diagram of palm oil extraction process 15 Figure 2.2 Scheme of the degradation process of anaerobic digestion for POME wastewater 22 Figure 2.3 Degradation of each organic component by three groups of bacteria in the anaerobic digestion process 30 Figure 2.4 Anaerobic reactor configuration between suspended and

Methane-yielding microbial communities processing lactate .

Methane-yielding microbial communities processing lactate .

Apr 21, 2018 · Anaerobic digestion, whose final products are methane and carbon dioxide, ensures energy flow and circulation of matter in ecosystems. This naturally occurring process is used for the production of renewable energy from biomass. Lactate, a common product of acidic fermentation, is a key intermediate in anaerobic digestion of biomass in the environment and biogas plants.

HYDROGEN PRODUCTION STORAGE - ReadkonG

HYDROGEN PRODUCTION STORAGE - ReadkonG

The present publication, Hydrogen Production and Storage - R&D Priorities and Gaps, was prepared by the Hydrogen Implementing Agreement in the context of tasks 2 & 3 of the above HCG programme of work. It includes two papers that highlight priorities and needs in the R&D activities of hydrogen production and storage technologies.

Anaerobic Biotechnology for Bioenergy Production .

Anaerobic Biotechnology for Bioenergy Production .

Anaerobic biotechnology is a cost-effective and sustainable means of treating waste and wastewaters that couples treatment processes with the reclamation of useful by-products and renewable biofuels. This means of treating municipal, agricultural, and industrial wastes allows waste products to be converted to value-added products such as biofuels, biofertilizers, and other chemicals.

PRODUCTION OF ACETIC AND BUTYRIC ACID FROM .

PRODUCTION OF ACETIC AND BUTYRIC ACID FROM .

Figure 2.7 The schematic diagram of rotating biological contactor (RBC). ... 39 Figure 2.8 The schematic diagram of anaerobic-aerobic system. ... 45 Figure 2.9 The schematic diagram of horizontal reed bed treatment systems

Feasibility Study of Anaerobic Digestion of Food Waste in .

Feasibility Study of Anaerobic Digestion of Food Waste in .

feedstock and anaerobic digestion (AD) as the technology. The brownfield site is located in Chalmette, Louisiana, adjacent to the St. Bernard Port on the Mississippi River.

Bioreactor - Wikipedia

Bioreactor - Wikipedia

A bioreactor refers to any manufactured device or system that supports a biologically active environment. 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.These bioreactors are commonly cylindrical, ranging in size from litres .

Dark fermentative biohydrogen production from organic .

Dark fermentative biohydrogen production from organic .

Figure 2.7 - Schematic diagram of two chambered MEC separated by a proton exchange membrane and power supply (adapted and modified from Liu et al. (2005))... 51 Figure 2.8 - Two-stage process for hydrogen and methane production from organic

Hydrogen Production and Storage - MAFIADOC.COM

Hydrogen Production and Storage - MAFIADOC.COM

For all hydrogen production processes, there is a need for significant improvement in plant efficiencies, for reduced capital costs and for better reliability and operating flexibility. The commercial cost target for hydrogen production is 0.30 USD/kg H2, corresponding to an energy price for gasoline of 2.5 USD/GJ in a competitive market.

INTRODUCTION TO TREATMENT OF TANNERY EFFLUENTS

INTRODUCTION TO TREATMENT OF TANNERY EFFLUENTS

Annex 7. Sludge production in leather processing Annex 8. Classification of mechanical aerators Annex 9. Scheme of the membrane bioreactor (MBR) Annex 10. Personal hydrogen-gas monitor Annex 11. Reverse osmosis (RO): principle, diagram, photo of a small RO unit Annex 12. Schematic view of constructed wetland – reed beds Annex 13.