0
research-article

Effect of Biochar Addition and Temperature on Hydrogen Production from the First Phase of Two-Phase Anaerobic Digestion of Carbohydrates Food Waste

[+] Author and Article Information
Nimas/M Sunyoto

Centre for Energy, The University of Western Australia, 35 Stirling Highway Crawley, Perth, Western Australia 6009
nimas.sunyoto@research.uwa.edu.au

Mingming Zhu

Centre for Energy, The University of Western Australia, 35 Stirling Highway Crawley, Perth, Western Australia 6009
mingming.zhu@uwa.edu.au

Zhezi Zhang

Centre for Energy, The University of Western Australia, 35 Stirling Highway Crawley, Perth, Western Australia 6009
zhezi.zhang@uwa.edu.au

Dongke Zhang

Centre for Energy, The University of Western Australia, 35 Stirling Highway Crawley, Perth, Western Australia 6009
dongke.zhang@uwa.edu.au

1Corresponding author.

ASME doi:10.1115/1.4039318 History: Received July 28, 2017; Revised February 04, 2018

Abstract

This paper reports an experimental study of the effect of biochar addition and temperature on hydrogen production in the first phase of the two-phase anaerobic digestion (TPAD) of carbohydrates food waste. Anaerobic digestion experiments using white bread representing carbohydrate food wastes were conducted in bench scale 100 ml reactors. The cultures with biochar addition were placed in the reactors and incubated at different temperatures (18, 35 and 52 oC) over a period of 8 days. The biochar addition ratio was varied from 0 to 18.6 g.l-1. The daily volumetric hydrogen production was measured, and the cumulative yield (YH) and daily production rate (RH) of hydrogen were calculated. Both biochar addition and temperature affected hydrogen production significantly. YH and maximum RH increased as the biochar addition ratio increased from 0 to 10 g.l-1 then decreased as the biochar addition ratio further increased up to 18.6 g.l-1. At different temperatures, YH varied significantly, increasing from 846 ± 18 ml.l-1 at 18 oC to 1475 ± 53 ml.l-1 at 35?C and dropped to 1149 ± 26 ml.l-1 at 52 oC. The maximum RH also peaked at 35 oC, reaching 858 ± 57.1 ml.l-1.day-1. The effect of biochar addition was more profound under mesophilic conditions. The results of this study confirmed the beneficial effect of biochar addition in hydrogen production of carbohydrate food waste in the TPAD process.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In