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Enhancing continuous hydrogen gas production by the addition of nitrate into an anaerobic reactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
36098 45120 2006 5 PDF Available
Title
Enhancing continuous hydrogen gas production by the addition of nitrate into an anaerobic reactor
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.

Keywords
Granular sludge; Mixed culture; Hydrogen gas; Methane; Heat treatment; Nitrate
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 5, May 2006, Pages 1208–1212
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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