Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 31, Issue 6, Pages 683-692Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2005.07.005
Keywords
acidophilic; Clostridium; fermentation; food waste; hydrogen; phylogenetic analysis; rice
Categories
Ask authors/readers for more resources
Batch experiment results showed that hydrogen production from rice slurry was found most effective at pH 4.5, 37 degrees C treating a slurry containing 5.5 g-carbohydrate/L. An anaerobic digester sludge was used as seed after a 100 degrees C heat treatment for 30 min. After a 36 h acclimation period, the sludge had a maximum specific hydrogen production rate of 2.1 L/(g-VSS d) and a hydrogen yield of 346 mL/g-carbohydrate, corresponding to 62.6% of stoichiometric yield. The effluent was composed mostly of acetate (28.3-43.0%) and butyrate (51.4-70.9%). Based on the 16S rDNA analysis, the 28 clones developed from this acidophilic hydrogen-producing sludge may be classified into nine OTUs, all of which are affiliated with the genus Clostridium. Phylogenetic analysis shows that eight OTUs (96.4% of population) form a distinct group with Clostridium sp. 44a-T5zd. Results indicate the acidophilic hydrogen-producing bacteria found in this study are unknown, and warrant further studies. (c) 2005 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available