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All Journal Jurnal Keteknikan Pertanian Tropis dan Biosistem
Wijayanti, Ulimaz Rahma
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Agriculture, Biological Sciences & Forestry Control & Systems Engineering Electrical & Electronics Engineering Energy Mechanical Engineering

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The Effect of Biochar Particle Size on Biogas Production Using Bread Waste Substrate Sugiarto, Yusron; Wijayanti, Ulimaz Rahma; Sunyoto, Nimas Mayang Sabrina; Maharsih, Inggit Kresna; Andriani, Ria Dewi; Anugroho, Fajri
Journal of Tropical Agricultural Engineering and Biosystems - Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol. 11 No. 1 (2023): April 2023
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkptb.2023.011.01.10

Abstract

The effect of biochar supplementation with different particle size on biogas production in two-stage anaerobic digestion of white bread waste was carried out on a laboratory scale using a 100 mL bioreactor. The supplementation of biochar variations with particle sizes <63 µm, <125 µm, <149 µm, <250 µm, and <500 µm and the addition of different biochar concentration of 5 g/L, 15 g/L, and 25 g/L were investigated to obtain optimal concentrations. Mixed cultures were incubated at 35 °C for 40 days. Daily gas production, pH and Chemical Oxygen Demand (COD) were measured using the daily water displacement method. The results showed that the particle size of biochar < 500 µm with a biochar concentration of 5 g/L increased biogas production by 60% and resulted in gas accumulation of 4,240.03 mL/L. CH4, It has proven that biochar increased pH in the mixture. COD concentration decreased from 9,670 mg/L to 1,640 mg/L.
Co-Authors Fajri Anugroho, Fajri Maharsih, Inggit Kresna Nimas Mayang Sabrina Sunyoto, Nimas Mayang Sabrina Ria Dewi Andriani Yusron Sugiarto