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Hydrogen-producing capability of anaerobic activated sludge in three types of fermentations in a continuous stirred-tank reactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
14728 1244 2009 5 PDF Available
Title
Hydrogen-producing capability of anaerobic activated sludge in three types of fermentations in a continuous stirred-tank reactor
Abstract

A continuous stirred-tank reactor was used as an anaerobic sludge system and the hydrogen production capabilities of three typical fermentations, in terms of specific hydrogen production rates, were investigated under the same hydraulic retention times (8 h) and influent chemical oxygen demand (5000 mg/L) at 35 °C. The reactor was continuously fed with diluted molasses, while the pH and oxidation reduction potential in the reactor were regulated to control the type of fermentation. The specific hydrogen production rate of the anaerobic sludge reached 2.96 mol/kg mixed liquid volatile suspended solid (MLVSS)/day, (mol•kg MLVSS− 1 d− 1), in ethanol-type fermentation, while 0.57 mol·kg MLVSS− 1 d− 1 in butyric acid-type fermentation, and 0.022 mol·kgMLVSS− 1 d− 1 in propionic acid-type fermentation. The hydrogen production capability of ethanol-type fermentation was 4.11 times greater than that of butyric acid-type fermentation and 148 times that of propionic acid-type fermentation.

Keywords
Hydrogen production; Fermentation; Anaerobic activated sludge; Continuous reactor; Production capability
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Hydrogen-producing capability of anaerobic activated sludge in three types of fermentations in a continuous stirred-tank reactor
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biotechnology Advances - Volume 27, Issue 5, September–October 2009, Pages 573–577
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us