Chapter 11 - Acidogenic Biohydrogen Production From Wastewater

Abstract

Biohydrogen (H2) production from renewable wastewater signifies a sustainable alternative to the fossil fuel-based economy. H2 is deemed to be the futuristic energy carrier with high-energy yield. This communication specifically addresses H2 production through wastewater remediation. A comprehensive emphasis was made on the fermentative routes, viz., light-driven and light-independent processes, encompassing wastewater and mixed culture application as the focal point. Important process parameters that have a critical role on the process efficiency were elaborated. Some of the persistent limitations encountered during the process operation were delineated. Stress was made on the pertinent discussion on biocatalyst pretreatment methods in the context of mixed culture wastewater usage. Reported strategies to overcome the limitations were discussed to make the process economically viable, especially for large-scale applications.