Two-step biological hydrogen preparing process with raised hydrogen generating efficiency of organic waste water

A technology for organic wastewater and biological hydrogen production, which is applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. The effect of treatment and hydrogen production efficiency improvement
CN1706754AInactive Publication Date: 2005-12-14UNIV OF SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF SCI & TECH OF CHINA
Publication Date
2005-12-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to biological treating technology of organic waste water or sewage, and is especially the biological hydrogen preparing process with organic waste water. The biological hydrogen preparing process includes introducing organic waste water to reactor with anaerobic hydrogen generating bacteria, and collecting and separating hydrogen; outputting the solution from the anaerobic fermenting reactor to regulating pond, and adding alkaline matter to regulate pH of solution to 6.5-7.0; and feeding the solution into photosynthetic reactor with photosynthetic hydrogen generating bacteria, and collecting and separating hydrogen for the second time. The said process has the fatty acid and alcohol produced in the anaerobic fermentation utilized fully in the second hydrogen production. The present invention has high hydrogen producing efficiency and high purification of organic waste water.
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Description

Technical field:

[0001] The invention relates to a biological treatment technology of organic waste water or sewage, in particular to a method for biological hydrogen production using organic waste water. Background technique:

[0002] In the prior art, the use of anaerobic fermentation bacteria to treat organic wastewater while producing hydrogen has been gradually recognized by people. In 2003, the United States "Biotechnology and Process" (Biotechnology Progress, 2003, Volume 19, Phase 3, Pages 828-832) disclosed a method of using anaerobic fermentation bacteria to degrade organic matter in organic wastewater to obtain hydrogen Methods. In this method, the liquid-phase product produced by anaerobic fermentation hydrogen-producing bacteria using organic wastewater is input into a subsequent methane reactor, so that fatty acids and alcohols in the liquid-phase product are converted into methane by the methanogenic bacteria, and the hydrogen production efficiency of organic...

Claims

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