Open AccessBiological hydrogen production from biomass at room temperature
Author(s) -
Narongsak Kodtharin,
Phuvasa Chamuang,
Udom Tipparach
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1380/1/012156
Subject(s) - hydrogen , fermentation , hydrogen production , carbon dioxide , starch , methane , biogas , chemistry , biomass (ecology) , waste management , pulp and paper industry , food science , agronomy , organic chemistry , engineering , biology
Hydrogen is an environmentally friendly source of renewable energy and it has a high energy yield greater than hydrocarbon fuels. In this work, we present the production of hydrogen gas by dark fermentation, a biological process. The substrate was cassava starch. The sources of hydrogen producing bacteria, Clostridium, were swine manure and buffalo dung. The inoculum sludge was pre-heated treatment at 100 °C for 2 hours. The fermented hydrogen gas can be produced at room temperature. The cassava starch concentration was 100 g/l. The maximum hydrogen yield of 80 ml hydrogen gas per gram of starch was achieved. The highest purity of hydrogen was 37% when fermented volume was 120 ml at 144 hours. Besides hydrogen gas, the product contained several undesired-impurity gases including methane, carbon dioxide, hydrogen sulphides, and water vapour.