Study On The Law And Effect Of Dehydrogenaes In Fermentative Hydrogen Production From Biomass

It is widely anticipated that bio-hydrogen production which has the advantages of high hydrogen production rates and of the capability to convert widely organic wastes in the environment into more valuable energy could be one of the most promising, economical, clean biotechnology in the applied domain of renewable energyThe stability and persistence are lasting problems in fermentative hydrogen processes. Moreover, how to improve hydrogen production rate and substrate conversion efficiency is also important in the research of fermentative hydrogen production, which is also the key factor to realize industrialization. In view of these questions, this study firstly puts forward and validates 'There was a good correlation between hydrogen production and dehydrogenase activity (DHA)' with innovation. The conclusions are as follow:1, A convenient, stable and accurate technical method was developed for evaluating the dehydrogenase activity in numerous systems.2,The research indicates that dehydrogenase activity changes in alternating direction with hydrogen concentration in dynamic hydrogen fermentation by using the anaerobic microorganism, which is a meaningful start for the further research of DHA to reveal the law and effect of dehydrogenaes in fermentative hydrogen production from biomass3 , By using immobilized microorganism entraped by Polyvinyl Alcohol, fermentative hydrogen production from liquid of potato hydrolysate (PDB)has been conducted with a suit of multistage bioreactors which was designed and fabricated in view of the dynamic law between fermentative hydrogen production and DHA.The research indicates that it realized stability and persistence of the hydrogen production by using multistage bioreactors which not only resolve the problem of unstable and discontinuouse hydrogrn production with single bioreactor, but also follow the law stated above, theoretically and practically4,The hydrogen production rate and substrate conversion efficiency were dramatically improved by optimizing immobilized microorganism with adding promoting component which was obtained by L₂₇(3¹³) orthogonal test since it could activate the DHA of...