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Continuous biohydrogen production in a CSTR using starch as a substrate by Muhammad Farhan Arooj; Sun-Kee Han; Sang-Hyoun Kim; Dong-Hoon Kim; Hang-Sik Shin is a Engineering article available to read on EtoBox.

What is Continuous biohydrogen production in a CSTR using starch as a substrate about?

There are few reports on continuous biohydrogen production from biopolymers like starch, because most previous studies on continuous operation were performed using simple hydrolysates such as glucose and sucrose. This study was, therefore, carried out to investigate continuous biohydrogen production in an anaerobic continuous stirred-tank reactor (CSTR) using corn starch as a substrate for 158 days. The reactor was seeded with mixed community sludge from an anaerobic digester at a local wastewater treatment facility. Volatile fatty acids (VFA) profile supported the fact that butyrate to acetate (B/A) ratio was the most important parameter to justify hydrogen yield at various hydraulic retention times (HRT). Maximum hydrogen yield of 0.92 mol H 2 /mol glucose added was observed at 12 h HRTwith the highest B/A ratio of 4.3. Also, estimation modeling to quantify homoacetogenism was conducted and H 2 -consuming acetate production at various HRTs was estimated. Estimation modeling revealed that at short HRTs of 9, 6 and 4 h, acetate concentration plays a trivial role. Therefore, butyrate concentration alone instead of butyrate to acetate ratio (B/A) justifies the trend of H 2 yield at s

Who reads Continuous biohydrogen production in a CSTR using starch as a substrate?

Author

Muhammad Farhan Arooj; Sun-Kee Han; Sang-Hyoun Kim; Dong-Hoon Kim; Hang-Sik Shin

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0360-3199)

Published

2008

Language

EN

Field

Engineering (Physical Sciences)