BioChem - DOS

Enhancement of fermentative biohydrogen production from textile desizing wastewater via coagulation-pretreatment

International journal of hydrogen energy

Lin, C.Y.; Chiang, C.C.; Thi Nguyen, M.L.; Lay, C.H.

A real textile desizing wastewater (TDW) was coagulation-pretreated to enhance its potential of biohydrogen production. Batch fermentation showed that the hydrogen production was efficiently enhanced (550 and 120% increments for hydrogen production rate and hydrogen yield, respectively) and the production performance was substrate-concentration dependent. A peak hydrogen production rate of 3.9 L/L-d and hydrogen yield of 1.52 mol/mol hexose were obtained while using coagulant GGEFloc-653 at a dosage of 1 g/L to pretreat TDW with the concentration of 15 g total sugar/L. The coagulation-pretreatment could have butyrate-type fermentation with high biohydrogen production and the removed some toxic materials that might drive the metabolic pathways to those not favoring biohydrogen production. Based on the data obtained, strategies to operate the coagulation and biohydogen fermentation are suggested. Moreover, fermentation effluent utilization such as for two-stage biogas production and further biohythane (a mixture of H<SUB>2</SUB> and CH<SUB>4</SUB>) generation are also elucidated.

2017

Pergamon Press ; Elsevier Science Ltd

0360-3199

1879-3487

42

17

pp.12153-12158

10.1016/j.ijhydene.2017.03.184

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART77847911

Biohydrogen; Coagulation; Dark fermentation; Desizing wastewater; Textile industry