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Biohydrogen Production From Synthetic Lignocellulosic Hydrolysates: Acclimatization And Inhibition, Basem Mikhaeil Fawzy Haroun
Biohydrogen Production From Synthetic Lignocellulosic Hydrolysates: Acclimatization And Inhibition, Basem Mikhaeil Fawzy Haroun
Electronic Thesis and Dissertation Repository
The growing concerns regarding climate change, population growth, depletion of fossil fuel, and pollution arising from the combustion of petroleum-based fuel can be identified as the most important factors driving the urgent need for environmentally friendly renewable energy. Among all the recognized alternatives to gasoline-based fuel, hydrogen is not only considered as a clean energy but also it has a high energy content of 142 kJ/g which is almost three times higher compared to other fossil fuels. Only water and heat are the by-products of hydrogen combustion. Dark fermentative hydrogen production is a feasible option in which inexpensive, low-grade, carbohydrate-rich, …
Investigation Of Bio-Hydrogen Production Optimization From Synthetic And Real Wastes Using Pure And Mixed Cultures, Noha El-Sayed Nasr
Investigation Of Bio-Hydrogen Production Optimization From Synthetic And Real Wastes Using Pure And Mixed Cultures, Noha El-Sayed Nasr
Electronic Thesis and Dissertation Repository
Dark fermentative H2 production is an important route to renewable energy as it is based on a known technology and can utilize a wide range of available waste streams as substrate. However, more research is required to overcome the technical barriers to practical application. The aim of this study is to investigate different scenarios towards the optimization of fermentative H2 production from synthetic and real wastes using pure and mixed cultures. Lignocellulosic biomass, i.e. pretreated corn cobs and poplar wood hydrolysate were evaluated for H2 production using mixed anaerobic cultures and yields of 141 and 169 mL …
Enhancement Of Biohydrogen Production From Co-Fermentation Of Glucose, Starch, And Cellulose, Medhavi Gupta
Enhancement Of Biohydrogen Production From Co-Fermentation Of Glucose, Starch, And Cellulose, Medhavi Gupta
Electronic Thesis and Dissertation Repository
The aim of this study was to assess the synergistic effects of co-fermentation of glucose, starch, and cellulose using anaerobic digester sludge (ADS) on the biohydrogen (H2) production and the associated microbial communities. At initial pH of 5.5 and mesophilic temperature of 37 ºC, the H2 yields were greater by an average of 27 ± 4% in all the different co-substrate conditions compared to the mono-substrate conditions, which affirmed that co-fermentation of different substrates improved the hydrogen potential. The sensitivity of mesophilic ADS to a temperature shock was also investigated. Unacclimatized mesophilic ADS responded well to a …