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The paper reviewed hydrogen production biotechnology on theoretical and scientific aspects in our lab. Fermentative process is better for hydrogen production than photosynthetic process. The fermentative process, ecology of the activated sludge system, bacteriology of anaerobes, engineering control, reactor design, and fundamental research have made a great progress. At present, the demonstration...
Anaerobic hydrogen fermentation converting carbohydrate-rich wastewater to clean hydrogen energy is a renewable technology for hydrogen production. Applying immobilization technology on biohydrogen production could make the biohydrogen producing system durable and stable in response to organic load impacting and low pH value. This study investigated granular activated carbon to immobilize hydrogen...
Hydrogen producing bacterium Ethanoligenens harbinense R3 was separated from the anaerobic activated sludge in a continuous stirred tank reactor. Hydrogen production performance was studied by batch culture hydrogen producing bacteria Ethanoligenens harbinense R3 using straw as a substrate. Straw was pretreated by different concentrations of sulfuric acid and sodium hydroxide, and the result indicated...
Hydrogen production from diluted molasses by pure microbial species R3 was investigated in a continuous stirred tank reactor (CSTR) under continuous flow condition in this paper. The reactor used in this study was made of organic glasses. The experimental results indicated that the hydrogen-producing system could attain a stable state for hydrogen production with a hydraulic retention time (HRT) of...
The paper reviewed hydrogen production biotechnology on reactor development and design aspects. Biological hydrogen-producing reactor as acid-producing phase of two-phase anaerobic organism treatment system plays an important role in the following aspects: Reactor was developed as the follow ideas: a. CSTR-type anaerobic fermentation reactor is selected to reduce the substrate concentration in reactor...
Hydrogen is a clean energy carrier which has a great potential to be an alternative fuel. Abundant biomass from various industries could be a source for biohydrogen production where combination of waste treatment and energy production would be an advantage. A study of biohydrogen production using aerobic-pretreated sludge and molasses by anaerobic fermentation in continuous stirred-tank reactor (CSTR)...
Research on Biohydrogenbacterium R3 sp.nov. biohydrogen production from molasses wastewater in a continuous stirred-tank reactor (CSTR) was conducted. Emphasis was placed on the rapid start-up of ethanol-type fermentation in biological hydrogen production reactor. It is found that temperature of (35±1) °C, hydraulic retention time (HRT) of 6 h, the reactor could start-up the ethanol-type fermentation...
As a new clean energy source and important material, the use and demand of hydrogen are increasing-rapidly. So that bio-hydrogen producing technology moves toward cutting down the operation costs in recent years. Bio-hydrogen production capacity improvement and cost reduction are two key points for industrialization of the process. The paper focuses on: Mixed fermentative bio hydrogen production system;...
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