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Fermentation of hydrogen, 1,3-propanediol and ethanol from glycerol as affected by organic loading rate using up-flow anaerobic sludge blanket (UASB) reactor
Sittijunda S. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Fermentation of hydrogen, 1,3-propanediol and ethanol from glycerol as affected by organic loading rate using up-flow anaerobic sludge blanket (UASB) reactor
ผู้แต่ง / หัวหน้าโครงการ (EN): Sittijunda S.
บทคัดย่อ (EN): The influences of organic loading rate (OLR) on the production of biohydrogen, 1,3-propanediol (1,3-PD) and ethanol from glycerol in an up-flow anaerobic sludge blanket (UASB) by anaerobic mixed cultures were investigated. UASB reactor was firstly operated using pure glycerol as the substrate at various OLRs of 25, 37.5, 50, 62.5 g/L d. Results showed that a change in OLR led to a change in hydrogen production, hydrogen production rate (HPR), hydrogen yield (HY), 1,3-PD and ethanol production as well as glycerol consumption, and microbial community. The optimal OLR for hydrogen and ethanol production was found to be 50 g/L d when the UASB was fed with pure glycerol, while the optimal OLR for 1,3-PD production was 62.5 g/L d. After the optimum OLR was obtained, the reactor was fed with crude glycerol. Maximum hydrogen, ethanol and 1,3-PD production from crude glycerol was obtained at the same OLR as of pure glycerol. A maximum hydrogen production, HY, ethanol and 1,3-PD production of 134.2 mmol/L, 579.8 mmol H2/mol glycerol, 78.9 mmol/L and 60.9 mmol/L, respectively, were obtained when pure glycerol was used as the substrate. However, when crude glycerol was used as the substrate, a maximum hydrogen production, HY, ethanol and 1,3-PD production were lower than that of using pure glycerol as the substrate. Analysis of microbial community by polymerase chain reaction-denaturing gradient gel electrophoresis indicated that the predominant hydrogen producers at the optimum OLR of 50 g/L d, when crude glycerol was used as the substrate, were Clostridium sp., Enterobacter sp., uncultured Firmicutes bacterium, and uncultured Actinobacterium while Enterobacter sp., Klebsiella sp., were the predominant 1,3-PD producers and Clostridium sp., as well as Enterobacter sp., were the predominant ethanol producers. © 2017 Hydrogen Energy Publications LLC
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-85020449243&doi=10.1016%2fj.ijhydene.2017.05.149&partnerID=40&md5=e8a7543007c26b71c76b2822adc66b21
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Hydrogen production
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
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Sittijunda S.. "Fermentation of hydrogen, 1,3-propanediol and ethanol from glycerol as affected by organic loading rate using up-flow anaerobic sludge blanket (UASB) reactor". ไม่ระบุหน่วยงาน. ม.ป.ป.

Sittijunda S.. "Fermentation of hydrogen, 1,3-propanediol and ethanol from glycerol as affected by organic loading rate using up-flow anaerobic sludge blanket (UASB) reactor". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Fermentation of hydrogen, 1,3-propanediol and ethanol from glycerol as affected by organic loading rate using up-flow anaerobic sludge blanket (UASB) reactor
Sittijunda S.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
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