Open Access
REVIEW
The Role of Biochar to Enhance Anaerobic Digestion: A Review
Shuai Tang1, Zixin Wang2, Zhidan Liu1, Yuanhui Zhang2, Buchun Si1,*
1 Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, College of Water Resources and Civil Engineering, China Agricultural University, Beijing, 100083, China
2 Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
* Corresponding Author: Buchun Si. Email:
Journal of Renewable Materials 2020, 8(9), 1033-1052. https://doi.org/10.32604/jrm.2020.011887
Received 06 June 2020; Accepted 30 June 2020; Issue published 03 August 2020
Abstract
Biochar, one of the products of thermochemical conversion of biomass,
possesses specific physiochemical properties such as conductivity, pore adsorption, surface functional groups, and cation exchange capacity. Anaerobic digestion (AD) as a classical bio-wastes conversion technology, suffers from
inhibitions, process instability, and methanogenic inefficiency which limit its effi-
ciency. With the advantages of pH buffering, functional microbes enrichment,
inhibitors alleviating, and direct interspecies electron transfer (DIET) accelerating,
biochar suggests a promising application as additives for AD. Herein, this paper
reviewed the noting physicochemical properties of biochar, and discussed its roles
and related mechanisms in AD. Further, this paper highlighted the advantages and
drawbacks, and pointed out the corresponding challenges and prospects for future
research and application of biochar amending AD.
Keywords
Cite This Article
Tang, S., Wang, Z., Liu, Z., Zhang, Y., Si, B. (2020). The Role of Biochar to Enhance Anaerobic Digestion: A Review.
Journal of Renewable Materials, 8(9), 1033–1052. https://doi.org/10.32604/jrm.2020.011887
Citations