Biohydrogen Production from Organic Waste – A Review

Abstract

Hydrogen fuel is a promising alternative to fossil fuels because of its energy content, clean nature, and fuel efficiency. However, it is not readily available. Most current producion processes are very energy intensive and emit carbon dioxide. Therefore, this article reviews technological options for hydrogen production that are eco‐friendly and generate clean hydrogen fuel. Biological methods, such different fermentation processes and photolysis are discussed together with the required substrates and the process efficiency.

Bleach enhancement of mixed wood pulp by mixture of thermo-alkali-stable xylanase and mannanase derived through co-culturing of Alkalophilic Bacillus sp. NG-27 and Bacillus nealsonii PN-11

“…Enzyme dose; 40-70 IU godp À1 (X:M; 3:1), time (30-90min. ), pH (7)(8)(9) and temperature (55-75 C) was used in 30 combinations (Table S2). The RSM model was validated further for predicted versus actual responses.…”

“…In the process of papermaking, chlorinated organic substances released in the effluent are known to be toxic and harmful [1,2]. Although a lot of research is being done to standardize the treatment of these toxic effluents [3,4,5,6] but devising processes with reduced use of chemicals is the best alternative to reduce pollution and making the process energy efficient [7,8,9]. Biotechnology has come a long way in developing such environment-friendly processes [10,11,12].…”

Microorganism‐Assisted Biohydrogen Production and Bioreactors

“…Green algae strains that are reviewed by researchers since 1930 for biohydrogen production are Chlorella, Chlamydomonas, Anabaena, Platymonas sp., Tetraspora, Coelastrella , and Scenedesmus 34, 63, 95, 105. Other potential algae species for hydrogen production are Pandorina, Ulothrix, Staurastrum, Closterium, Cosmarium, Dimorphococcus, Euastrum , and Selenastrum 63.…”

“…PSB are categorized into four phyla, namely, purple sulfur bacteria, purple non-sulfur Table 1. Different types of fuel sources and energy content [95].…”

An overview of anoxygenic phototrophic bacteria and their applications in environmental biotechnology for sustainable Resource recovery

“…Among the many APB based applications, the production of biohydrogen has very strong potential, particularly given the increased focus on hydrogen as a key future energy carrier and fuel. Recent reviews, including the review by Sampath et al [ 10 ] describes the different biological methods as well as suitable substrates that can be employed for the production of biohydrogen. Tian et al [ 11 ] reviews three technologies that can be used to convert waste matter to biohydrogen with emphasis on both the technological as well as the environmental outlook.…”