Abstract
A novel synthetic polymer (ethylene-vinyl acetate copolymer; EVA) was used to immobilize acclimated sewage sludge for H 2 production under anaerobic conditions. Using sucrose as the sole carbon substrate, the resulting EVA-immobilized cells achieved an optimal H 2 production rate ( v H 2 ) of 488 ml H 2/g VSS and the best substrate-based yield ( Y H 2 / sucrose ) of 1.74 mol H 2/mol sucrose. Operation at a temperature of 40 °C resulted in the most efficient H 2 production. Acclimation of the sewage sludge allowed up to 3-fold enhancement on the performance of H 2 production. Kinetic studies show that a Monod-type model is able to describe the dependence of specific H 2 production rate on sucrose concentration. The immobilized cells maintained stable and efficient H 2 production during 15 repeated runs, indicating excellent durability and stability of the immobilized-cell system. The composition of soluble metabolites was found to be a reliable indicator for the efficiency of biohydrogenation.
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.
