Journal
BIORESOURCE TECHNOLOGY
Volume 324, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2021.124680
Keywords
Biohydrogen production; Zinc ion; Kinetics; Electron balance
Funding
- National Natural Science Foundation of China [52076068]
- National Key R&D Program of China [2018YFE0206600]
Ask authors/readers for more resources
The study found that the addition of Zn2+ can significantly improve the efficiency of photo-fermentation hydrogen production, and it exhibits noncompetitive inhibition. Through modeling predictions, the optimal Zn2+ addition concentration was determined to be 40.83 mg/L.
The aim of this work was to study the characteristics, kinetics and electronic distribution of photo-fermentation hydrogen production (PFHP) with Zn2+ addition then gave the main results that the addition of Zn2+ can effectively improve hydrogen production with an increasing of 1-5 mg/L Zn2+ concentration. The maximum hydrogen yield of 592 +/- 13 mL and shortest lag time of 4.67 h were obtained at 2 mg/L Zn2+. 26.42% of the substrate energy was diverted to H-2. Modified Gompertz and Hane-Levenspiel models were applied to evaluate the effect of Zn2+ on PFHP by mixed bacteria HAU-M1, the constants n and m obtained by fitting models were 14.97 and 58.79, respectively, indicating the fermentation system was noncompetitive inhibition, the predicted critical Zn2+ concentration was 40.83 mg/L.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available