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http://dx.doi.org/10.17137/Korrae.2011.19.1.6

Energy production from organic waste by anaerobic treatment (I) : Hydrogen production from food waste  

Han, Sun-Kee (Department of Environmental and Health, Korea National Open University)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.19, no.1, 2011 , pp. 102-108 More about this Journal
Abstract
Characteristics of hydrogen production from various food wastes in anaerobic batch reactors were evaluated to assess the energy potential of organic wastes. Organic wastes which were used in this study were scallion as vegetable, apple as fruit, rice as grain and pork as meat. Ultimate hydrogen yield of scallion, apple, rice and pork were 0.46, 0.47, 0.62 and $0.05mol\;H_2/mol\;hexose$, respectively. On the other hand, hydrogen production rates of scallion, apple, rice and pork were 0.013, 0.021, 0.014 and $0.005mol\;H_2/mol\;hexose/h$, respectively. These results indicated that anaerobic hydrogen fermentation from food waste except for meat was effective in removing organic material as well as producing renewable energy. Volatile fatty acids increased as hydraulic retention time was increased. In the hydrogen fermentation, acidification degree of rice was measured as the highest rate of 75.8% whereas pork was found as the lowest rate of 35.2%.
Keywords
Acidification degree; Energy potential; Hydrogen; Organic waste; Ultimate hydrogen yield;
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