Biohydrogen production from food waste hydrolysate using continuous mixed immobilized sludge reactors

Wei Han; Da Na Liu; Yi Wen Shi; Jun Hong Tang; Yong Feng Li; Nan Qi Ren

doi:10.1016/j.biortech.2014.12.067

Biohydrogen production from food waste hydrolysate using continuous mixed immobilized sludge reactors

Bioresour Technol. 2015 Mar:180:54-8. doi: 10.1016/j.biortech.2014.12.067. Epub 2014 Dec 27.

Authors

Wei Han¹, Da Na Liu², Yi Wen Shi¹, Jun Hong Tang³, Yong Feng Li⁴, Nan Qi Ren⁵

Affiliations

¹ College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.
² Department of Endocrinology, The First Hospital of Harbin, Harbin 150001, China.
³ College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China. Electronic address: hanwei1982@hdu.edu.cn.
⁴ School of Forestry, Northeast Forestry University, Harbin 150060, China; State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
⁵ State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.

PMID: 25590421
DOI: 10.1016/j.biortech.2014.12.067

Abstract

A continuous mixed immobilized sludge reactor (CMISR) using activated carbon as support carrier for dark fermentative hydrogen production from enzymatic hydrolyzed food waste was developed. The effects of immobilized sludge packing ratio (10-20%, v/v) and substrate loading rate (OLR) (8-40kg/m(3)/d) on biohydrogen production were examined, respectively. The hydrogen production rates (HPRs) with packing ratio of 15% were significantly higher than the results obtained from packing ratio of 10% and 20%. The best HPR of 353.9ml/h/L was obtained at the condition of packing ratio=15% and OLR=40kg/m(3)/d. The Minitab was used to elicit the effects of OLR and packing ratio on HPR (Y) which could be expressed as Y=5.31 OLR+296 packing ratio+40.3 (p=0.003). However, the highest hydrogen yield (85.6ml/g food waste) was happened at OLR of 16kg/m(3)/d because of H2 partial pressure and oxidization/reduction of NADH.

Keywords: Continuous mixed immobilized sludge reactor; Food waste; Hydrogen production; Packing ratio; Sewage sludge.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Bioreactors*
Carbon / chemistry
Equipment Design
Food
Hydrogen / metabolism*
Hydrolysis
Pressure
Sewage
Waste Management / instrumentation*
Waste Management / methods*

Substances

Sewage
Carbon
Hydrogen