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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: email

Journal of Renewable Materials 2020, 8(9), 1033-1052. https://doi.org/10.32604/jrm.2020.011887

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.

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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.

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cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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