发明名称 |
INTEGRATED SYSTEM FOR HYDROGEN AND METHANE PRODUCTION FROM INDUSTRIAL ORGANIC WASTES AND BIOMASS |
摘要 |
The present invention provides a system that has been devised to overcome the two most important limitations for sustained biological hydrogen production, namely contamination of the microbial hydrogen-producing cultures with methane-producing cultures necessitating frequent re-start-up and/or other methanogenic bacteria inactivation techniques, and the low bacterial yield of hydrogen-producers culminating in microbial washout from the system and failure. The system includes a continuously stirred bioreactor (CSTR) for biological hydrogen production, followed by a gravity settler positioned downstream of the CSTR, which combination forms a biohydrogenator. The biomass concentration in the hydrogen reactor is kept at the desired range through biomass recirculation from the bottom of the gravity settler and/or biomass wastage from the gravity settler's underflow. The gravity setter effluent is loaded with volatile fatty acids, as a result of microbiological breakdown of the influent waste constituents by hydrogen-producing bacteria, and is an excellent substrate for methane-forming bacteria in the downstream biomethanator. |
申请公布号 |
EP2391706(A4) |
申请公布日期 |
2013.11.20 |
申请号 |
EP20100735468 |
申请日期 |
2010.02.01 |
申请人 |
THE UNIVERSITY OF WESTERN ONTARIO |
发明人 |
HAFEZ, HISHAM MOHAMED;EI NAGGAR, MOHAMED HESHAM;NAKHLA, GEORGE F. |
分类号 |
C02F11/04;C02F3/00;C12M1/107;C12P3/00;C12P5/02 |
主分类号 |
C02F11/04 |
代理机构 |
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