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Anaerobic Membrane Gas Extraction Facilitates Thermolphilic H2 Production from Clostridium thermocellum
Başlık:
Anaerobic Membrane Gas Extraction Facilitates Thermolphilic H2 Production from Clostridium thermocellum
Yazar:
Singer, Scott, author.
ISBN:
9780438044593
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (128 pages)
Genel Not:
Source: Masters Abstracts International, Volume: 57-06M(E).
Advisors: Zhiyong Jason Ren; Pin-Ching Maness Committee members: Chris Corwin; Pin-Ching Maness; Zhiyong Jason Ren.
Özet:
Clostridium thermocellum is among the most efficient bacteria to convert cellulosic biomass into H2 during dark fermentation. However, despite great progress the H 2 yield and rate are still not satisfactory for large scale applications. The purpose of this study was to evaluate whether in-situ gas extraction using membrane bioreactors would increase H2 production from Clostridium thermocelllum when compared to a conventional anaerobic fermentation setup. Clostridium thermocelllum ATCC 27405, a cellulotyic, thermophilic bacterium was grown on cellobiose and Avicel in an anaerobic-fermentor (AF) and an anaerobic-membrane-bioreactor (AnMBR). Compared to the AF, the ANMBR increased cumulative H 2 production by 63%, from 25.8 to 42.1 mmols, increased the max H2 rate by 24%, from 3.4 to 4.2 mmol/hr, and increased yield by 58%, from 0.43 to 0.68 mmol H2/mmol hexose, on cellobiose. Likewise, on Avicel, the AnMBR increased cumulative H2 production by 47%, from 46.8 to 68.6 mmols, increased the max H2 rate by 87%, from 3.1 to 5.8 mmol/hr, and increased the yield by 46%, from 0.76 to 1.11 mmol H 2/mmol hexose.Overall, this study indicates that membrane gas extraction reduces feedback inhibition and makes AnMBR more efficient in converting biomass to renewable H2.
Notlar:
School code: 0051
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
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XX(688504.1) | 688504-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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