Title: Biogas production from sugarcane leaves and tops using batch experiments

Authors: Boonsong Sillapacharoenkul; Roj Khunanake; Yupadee Paopun; Piyanan Thanomchat; Nusara Sinbuathong

Addresses: Department of Agro-Industrial, Food and Environmental Technology, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok, Bangkok 10800, Thailand ' Department of Environmental Science, Faculty of Science and Technology, Thammasat University, Pathumtani 12121, Thailand ' Scientific Equipment and Research Division, Kasetsart University Research and Development Institute (KURDI), Kasetsart University, Bangkok 10900, Thailand ' Scientific Equipment and Research Division, Kasetsart University Research and Development Institute (KURDI), Kasetsart University, Bangkok 10900, Thailand ' Scientific Equipment and Research Division, Kasetsart University Research and Development Institute (KURDI), Kasetsart University, Bangkok 10900, Thailand

Abstract: Sugarcane leaves and tops were studied as feedstock for biogas production. Sugarcane leaves and tops alone and those mixed with cow manure were separately digested in anaerobic batch reactors. The influent feedstock for digestion consisted of ratios of sugarcane leaves and tops-to-cow manure-to-water of 20:0:80 (sugarcane leaves and tops alone) and for co-digestion was 10:10:80 (sugarcane leaves and tops with cow manure). The anaerobic batch reactors comprised 50 mL syringes in a trial that compared methane (CH₄) yields. The CH₄ yield obtained from the co-digestion of the feedstock with cow manure was 145 L at standard temperature and pressure (STP) /kg chemical oxygen demand (COD) degraded while that of the digestion of sugarcane leaves and tops alone was just 61 L at STP/COD degraded. The rate of co-digestion of the sugarcane leaves and tops with cow manure was faster than that of the digestion without cow manure.

Keywords: agricultural waste; anaerobic digestion; biogas; co-digestion; renewable energy; sugarcane.

DOI: 10.1504/IJGW.2023.128856

International Journal of Global Warming, 2023 Vol.29 No.1/2, pp.159 - 170

Received: 25 Nov 2021
Received in revised form: 17 Jun 2022
Accepted: 18 Jun 2022
Published online: 07 Feb 2023 *

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