Biohydrogen-production from beer lees biomass by cow dung compost |
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| Affiliation: | 1. Department of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052, PR China;2. Laboratory of Special Functional Materials, Henan University, Kaifeng, Henan 475001, PR China;3. Center for Sustainable Environmental Technologies, Iowa State University, Ames, Iowa 50011, USA;1. ENCOMAT, University of Vigo, E.E.I., Campus Universitario, 36310 Vigo, Spain;2. AIMEN Technological Centre, O Porriño, Spain;1. Ministry of Environment Protection of the Republic of Serbia, Omladinskih Brigada 1, New Belgrade, Serbia;2. Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000, Belgrade, Serbia;3. University of Belgrade, “Vinča” Institute of Nuclear Sciences, National Institute of Serbia, Centre of Excellence for Hydrogen and Renewable Energy, 11000, Belgrade, POB 522, Serbia |
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| Abstract: | Efficient conversion of beer lees wastes into biohydrogen gas by microorganisms was reported for the first time. Batch tests were carried out to analyze influences of several environmental factors on yield of H2 from beer lees wastes. The maximum yield of H2 68.6 ml H2/g TVS was observed, the value is about 10-fold as compared with that of raw beer lees wastes. The hydrogen content in the biogas was more than 45% and there was no significant methane observed in this study. In addition, biodegradation characteristics of the substrate were also discussed. The results indicated that the HCl pretreatment of the substrate plays a key role in the conversion of the beer lees wastes into biohydrogen by the cow dung composts. |
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