Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
36098 | Process Biochemistry | 2006 | 5 Pages |
Abstract
Hydrogen gas was produced using granular sludge of mixed culture from sewage digester sludge. Methane gas was detected in the biogas even under acidogenic condition with pH 5.5–6.2 and after heat treatment at 95 °C. In order to repress methane production, nitrate known to inhibit methanogenic bacteria was added to an anaerobic reactor. When the feeding concentration of KNO3 into the reactor was 1000 mg/L and more, the yield of hydrogen gas production (H2-mol/glucose-mol) was almost 1.0 and no methane gas was produced. The nitrate was thought to repress methanogenic bacteria remarkably and this was confirmed using a SEM.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Bioengineering
Authors
Jeong Ok Kim, Yong Hwan Kim, Sung Ho Yeom, Bong Keun Song, In Ho Kim,