Technical aspect of wastewater engineering for dark fermentative hydrogen production
Santhana Krishnan1,2, Mohd Fadhil Bin Din1*, Shazwin Mat Taib2, Hesam Kamyab3, Shreeshivadasan Chelliapan3 , Zularisam A. Wahid4, Puranjan Mishra4, Lakhveer Singh4, Mohd Nasrulah4, Supriyanaka Rana4, Nurakmal Ahmad Mustaffa5, Mohd Hafizal Ismail6, Christie Pie Yee7
Dark fermentation is the fermentative conversion of organic substrate to biohydrogen.
Industrial wastewater is potential for hydrogen production due to availability, low-cost and biodegradability.
The configuration of fermenter along with subsequent processing defines the efficiency of a bioreactor.
Microbial electrolysis cells technique is an emerging technology for the augmentation of fermentation.
Two-stage fermentation is an alternative technology for higher yield.
Hydrogen is known to be an ideal alternative to fossil fuels because of its high energy density (142 MJ/kg) by mass and a clean combustion product. Using fermentative anaerobic bacteria to degrade biomass and produce renewable hydrogen is receiving a great attention. One of major obstacles of dark fermentation for high-yield hydrogen production is substrate inhibition while using dark fermentation effluent as the sole substrate. Dark fermentation is the fermentative conversion of organic substrate to biohydrogen. Industrial wastewaters can be used as a fermentative substrate for hydrogen production due to availability, low-cost and biodegradability. Microbial electrolysis cells (MECs) technique is an emerging technology for the augmentation of classical single stage fermentation. The configuration of the hydrogen fermenter along with subsequent downstream processing (hydrogen recovery and purification) is important to define the efficiency of a bioreactor producing hydrogen. Two-stage fermentation is a potential high-value solution for the valorization of waste biomass resources and probably an alternative technology for higher yield.
To cite this article: Krishnan S, Din MFB, Taib SM, Kamyab H, Chelliapan S, Wahid ZA, Mishra P, Singh L, Nasrulah M, Rana S, Mustaffa NA, Ismail MH, Yee CP. Technical aspect of wastewater engineering for dark fermentative hydrogen production. Journal of Desalination and Water Purification 2018;13:11-14.