BioChem - DOS

Non-sterile bio-hydrogen fermentation from food waste in a continuous stirred tank reactor (CSTR): Performance and population analysis

International journal of hydrogen energy

Reungsang, A.; Sreela-or, C.; Plangklang, P.

Bio-hydrogen production from food waste by anaerobic mixed cultures was conducted in a continuous stirred tank reactor (CSTR). The hydraulic retention time (HRT) was optimized in order to maximize hydrogen yield (HY) and hydrogen production rate (HPR). The maximum hydrogen content (38.6%), HPR (379 mL H<SUB>2</SUB>/L. d) and HY (261 mL H<SUB>2</SUB>/g-VS<SUB>added</SUB>) were achieved at the optimum HRT of 60 h. The major soluble metabolite products were butyric and acetic acids which indicated a butyrate-acetate type fermentation. Operation of CSTR at HRT 60 h could select hydrogen producing bacteria and eliminate lactic acid bacteria and acetogenic bacteria. The microbial community analyzed by polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) revealed that the predominant hydrogen producer was Clostridium sp.

2013

Pergamon Press ; Elsevier Science Ltd

0360-3199

1879-3487

38

35

pp.15630-15637

10.1016/j.ijhydene.2013.03.138

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART67346166

Bio-hydrogen; Food waste; CSTR