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|a eng
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|a Kim, S-H
|e verfasserin
|4 aut
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|a Performance comparison of a continuous-flow stirred-tank reactor and an anaerobic sequencing batch reactor for fermentative hydrogen production depending on substrate concentration
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|c 2005
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|a Text
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|a ohne Hilfsmittel zu benutzen
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|a Date Completed 09.05.2006
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a This study was conducted to compare the performance of a continuous-flow stirred-tank reactor (CSTR) and an anaerobic sequencing batch reactor (ASBR) for fermentative hydrogen production at various substrate concentrations. Heat-treated anaerobic sludge was utilized as an inoculum, and hydraulic retention time (HRT) for each reactor was maintained at 12 h. At the influent sucrose concentration of 5 g COD/L, start-up was not successful in both reactors. The CSTR, which was started-up at 10 g COD/L, showed stable hydrogen production at the influent sucrose concentrations of 10-60 g COD/L during 203 days. Hydrogen production was dependent on substrate concentration, resulting in the highest performance at 30 g COD/L. At the lower substrate concentration, the hydrogen yield (based on hexose consumed) decreased with biomass reduction and changes in fermentation products. At the higher substrate concentration, substrate inhibition on biomass growth caused the decrease of carbohydrate degradation and hydrogen yield (based on hexose added). The ASBR showed higher biomass concentration and carbohydrate degradation efficiency than the CSTR, but hydrogen production in the ASBR was less effective than that in the CSTR at all the substrate concentrations
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|a Comparative Study
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Sewage
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|a Hydrogen
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|a Oxygen
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|a Han, S-K
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|a Shin, H-S
|e verfasserin
|4 aut
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 52(2005), 10-11 vom: 18., Seite 23-9
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|x 0273-1223
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|g volume:52
|g year:2005
|g number:10-11
|g day:18
|g pages:23-9
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