Abstract
Continuous production of hydrogen from sugary wastewater by anaerobic microflora in chemostat culture was examined as a function of hydraulic retention time (HRT) in the reactor. The measured volumes of the evolved gas at each HRT were almost constant (Avg. 3590 ml/ l-feed) and the composition of the gas was approximately 64% hydrogen, 36% carbon dioxide, and less than 0.13% methane. Steady states on evolution of gas were observed for 190 d at HRTs from 0.5 to 3 d giving hydrogen production rates from 198 to 34 mmol/ l/d. Significant amounts of acetate and butyrate were formed as by-products. A maximum production yield of hydrogen of 14 mmol/g carbohydrate removed was obtained at an HRT of 0.5 d. The maximum removal efficiency of carbohydrates was approximately 97% at an HRT of 3 d. The patterns of fermentation by anaerobic microflora changed with HRT, i.e., acid formation decreased with decreasing HRT.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
