HYDROGEN PRODUCTION USING ANAEROBIC WASTEWATER TREATMENT PROCESSES
Abstract:Two aspects of biological hydrogen production were tested in this study. First, the effect of hydrogen partial pressures on bacterial metabolism was tested by comparing overall hydrogen production using a continuous hydrogen gas release device versus an intermittent (Owen method) gas release method. When the gas was continually released 43% more gas was produced than when it was released intermittently. Second, two selective pressures (a low pH and heat shocking) were compared relative to these methods to control the loss of hydrogen to hydrogen-consuming bacteria. Baking dewatered sludge produced higher amounts of hydrogen gas than a low pH. More hydrogen (66%) was produced when using baked sludge at a pH of 6.2 than when using non-baked sludge held at the same pH.
Document Type: Research Article
Publication date: 2002-01-01
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