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Biohydrogen Production from Textile Wastewater by Mixed Microflora in an Intermittent‐flow, Stirred Tank Reactor: Effect of Feeding Frequency
Author(s) -
Lay ChyiHow,
Sen Biswarup,
Kuo SzuYu,
Chen ChinChao,
Lin ChiuYue
Publication year - 2014
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201300524
Subject(s) - chemistry , biohydrogen , clostridium butyricum , wastewater , continuous stirred tank reactor , activated sludge , biogas production , pulp and paper industry , biogas , butyrate , food science , hydrogen production , hydrogen , waste management , anaerobic digestion , methane , fermentation , organic chemistry , engineering
An intermittent‐flow, stirred tank reactor (IFSTR) was used to produce biohydrogen from textile wastewater (TW) by activated sludge. The IFSTR was operated at pH 5.5 under various feeding frequencies and TW concentrations. The first intermittent peak biogas production rate of 17.5 L biogas/L‐d and HPR of 10 L H 2 /L‐d were obtained at feeding frequency of 12 times/d with TW concentration of 33.1 g hexoses/L. Butyrate and acetate were the major soluble metabolites at peak HPR, whereas lactate and ethanol accumulation decreased the HPR. Close resemblance of bacterial communities in periods of peak HPR with hydrogen producer Clostridium butyricum was observed.