Maximization of the methane production from durian shell during anaerobic digestion

Chen Zhao; Xinyue Cui; Yan Liu; Ruihong Zhang; Yanfeng He; Wen Wang; Chang Chen; Guangqing Liu

doi:10.1016/j.biortech.2017.03.184

Maximization of the methane production from durian shell during anaerobic digestion

Bioresour Technol. 2017 Aug:238:433-438. doi: 10.1016/j.biortech.2017.03.184. Epub 2017 Apr 3.

Authors

Chen Zhao¹, Xinyue Cui², Yan Liu³, Ruihong Zhang⁴, Yanfeng He¹, Wen Wang¹, Chang Chen⁵, Guangqing Liu¹

Affiliations

¹ Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
² School of Agricultural Economics and Rural Development, Renmin University of China, Beijing 100872, China.
³ College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.
⁴ Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, United States.
⁵ Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China. Electronic address: chenchang@mail.buct.edu.cn.

PMID: 28458177
DOI: 10.1016/j.biortech.2017.03.184

Abstract

This study systematically investigated the anaerobic digestibility of durian shell and focused on maximizing the methane yield using response surface methodology. Results showed in the feedstock to inoculum (F/I) ratio range of 0.2-2, a lower value was preferred. Meanwhile the methane yield showed a sharp rise first followed by a decline as the organic loading (OL) increased from 3 to 27g VS/L. The highest experimental methane yield (EMY) was calculated to be 170.6ml/g VS at F/I ratio of 0.2 and organic loading of 20.45g VS/L. To make the combination of F/I ratio and OL more practical, 0.5 was set as the optimum F/I ratio, when the highest EMY was obtained to be 165.0ml/g VS at the OL of 20.45g VS/L. Characteristics of final effluent implied the anaerobic system was stable. This study is important to promote the application of durian shell into anaerobic digestion from theory to practice.

Keywords: Anaerobic digestion; Durian shell; Feedstock to inoculum ratio; Organic loading; Response surface methodology.

MeSH terms

Anaerobiosis
Bombacaceae*
Methane*

Substances

Methane