BioChem - DOS

Enhancing strategy on renewable hydrogen production in a continuous bioreactor with packed biofilter from sugary wastewater

International journal of hydrogen energy

Chu, Chen-Yeon; Hastuti, Zulaicha Dwi; Dewi, Eniya Listiani; Purwanto, Widodo Wahyu; Priyanto, Unggul

<P><B>Abstract</B></P> <P>A flex-matala packed biofilter with specific surface area 365 m<SUP>2</SUP>/m<SUP>3</SUP> and free volume 94% was used as a bacteria carrier in a Continuous Stirred Tank Reactor (CSTR) in this study. The continuous stirred tank reactor with packed biofilter (CSTR-PBF) was designed and operated under sugary wastewater substrate at concentration of 20 g total sugar/L and HRT 8&ndash;0.5 h to assess the biohydrogen producing ability. Biofilter was installed at 60 mm height from the bottom of bioreactor (middle of the bioreactor). It was found that the optimum condition was at HRT 1 h with HPR of 88.73 L H<SUB>2</SUB>/L/d, substrate utilization of 92.95% and yield of 1.37 mol H<SUB>2</SUB>/mol hexose. A flex packed biofilter used in CSTR system is a better approach to accumulate biomass concentration in bioreactor for enhancing biohydrogen production rate comparison with other kinds of continuous bioreactor. The sugary wastewater used as substrate for biohydrogen production not only produce the renewable energy but also mitigate the organic wastewater pollution.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The novelty CSTR-PBF a better approach for enhancing biohydrogen production rate. </LI> <LI> The optimum condition was recommended at HRT 1 h for HPR 88.73 L H<SUB>2</SUB>/L/d. </LI> <LI> A packed biofilter has a higher open area ratio and provided a good contact rate. </LI> </UL> </P>

2016

Elsevier

0360-3199

1879-3487

41

7

pp.4404-4412

10.1016/j.ijhydene.2015.06.132

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART75045191

Packed biofilter; Sugary wastewater; Biohydrogen production; Continuous bioreactor