Results 41 to 50 of about 5,066 (212)

Microalgal upgrading of the fermentative biohydrogen produced from Bacillus coagulans via non-pretreated plant biomass

open access: yesMicrobial Cell Factories, 2023
Background Hydrogen is a promising source of alternative energy. Fermentative production is more feasible because of its high hydrogen generation rate, simple operating conditions, and utilization of various organic wastes as substrates.
Eman S. E. Aldaby   +5 more
doaj   +1 more source

Biohydrogen Production From Biomass Sources: Metabolic Pathways and Economic Analysis

open access: yesFrontiers in Energy Research, 2021
The commercialization of hydrogen as a fuel faces severe technological, economic, and environmental challenges. As a method to overcome these challenges, microalgal biohydrogen production has become the subject of growing research interest.
Shams Forruque Ahmed   +9 more
doaj   +1 more source

Exergy‐Based Simulation and Optimization of Multiagent MSW Gasification for Sustainable Energy Recovery Using Aspen Plus

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT Thermochemical gasification is one of the most efficient methods for producing solid waste synthesis gas. Therefore, to predict and analyze the process of gasification of municipal solid waste (MSW) in a downdraft fixed‐bed gasification reactor with a thermal capacity of 2.1 kW, a comprehensive numerical modeling approach based on Gibbs free ...
Mohammad Reza Gharib   +2 more
wiley   +1 more source

Biohydrogen production: molecular aspects

open access: yes, 2008
This study reviews biohydrogen systems, molecular and genetic aspects of hydrogen production and technologies of biohydrogen production. An enormous investment is needed to understand hydrogen-producing mechanisms better in cells of microorganisms at ...
Gumus, Selcuk   +2 more
core   +3 more sources

Waste to Hydrogen: Transforming Food Waste Into Biohythane (Bio‐H2 + Bio‐CH4) in a Two‐Stage Reactor With the Aid of a Metal‐Ion Catalyst

open access: yesEnergy Science &Engineering, EarlyView.
This study demonstrates a two‐stage catalytic bioreactor system that converts real food waste into high‐purity biohydrogen and biohythane. In Stage‐1, an enriched Clostridium thermocellum culture combined with Ni2+─Fe2+ bimetallic catalysis enhances hydrolysis efficiency and hydrogenase activity, resulting in a 77% increase in H2 yield and 75.8% purity
K. V. Sreedharan   +5 more
wiley   +1 more source

Biohydrogen production based on dark fermentation of molasses using escherichia coli

open access: yesEurasian Journal of Physics and Functional Materials, 2021
Currently, dark fermentation is the most practically applicable for the implementation of biotechnological  roduction of hydrogen. However, this process has certain limiting factors, since a significant part of the substrates are converted into various ...
K. Bekbayev, M. Akim, Zh. Nabiyeva
doaj   +1 more source

A Review on Carbon‐Based and Metal‐Based Anode Materials of Microbial Fuel Cells

open access: yesEnergy Science &Engineering, EarlyView.
Reviews a wide range of anode materials used in microbial fuel cells (MFCs) and evaluates their performance and suitability for scalable energy recovery from wastewater. Defines the essential characteristics of an ideal anode, including high surface area, excellent electrical conductivity, strong biocompatibility, and cost‐effectiveness, while ...
Md. Hamidur Rahman   +1 more
wiley   +1 more source

Anaerobic Process for Biohydrogen Production using Keratin Degraded Effluent

open access: yes, 2019
Fossil fuel energy depletion and removal of environmental wastes are big problem in many countries. Some of the wastes contain a considerable amount of protein and carbon compounds; little concentration is given to utilizing or recycling these wastes ...
Muthuramalingam Jothi Basu   +5 more
core   +1 more source

Light‐Driven Butyrate Production by a Probiotic Clostridium tyrobutyricum Enabled by a Cell‐Semiconductor Hybrid Interface

open access: yesFood Chemistry International, EarlyView.
This schematic illustrates a light‐driven biohybrid system where CdS nanoparticles, mineralized on the probiotic Clostridium tyrobutyricum, inject photoelectrons to elevate intracellular NADH. This boosts the flux through key NADH‐dependent enzymes (GapA, Hbd, and Bcd), reprogramming metabolism to enhance butyrate yield by 33.2% and selectivity to 95.7%
Qianru Zhao   +3 more
wiley   +1 more source

Biohydrogen production from industrial wastewater: An overview [PDF]

open access: yes, 2019
Biohydrogen production from industrial wastewater has been a focus of interest in recent years. The in depth knowledge in lab scale parameters and emerging strategies are needed to be investigated in order to implement the biohydrogen production process ...
Gunasekaran, Muniappan   +4 more
core   +1 more source

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