Integrated Microcontroller MQ Sensors for Monitoring Biogas: Advancements in Methane and Hydrogen Sulfide Detection

Negara, I Gede Artha and Anakottapary, Daud Simon and Widiantara, Ida Bagus Gde and Midiani, Luh Putu Ike and Nindhia, Tjokorda Gde Tirta and Santhiarsa, I Gusti Ngurah Nitya (2024) Integrated Microcontroller MQ Sensors for Monitoring Biogas: Advancements in Methane and Hydrogen Sulfide Detection. Jurnal Teknosains, 13 (2). pp. 140-151. ISSN 2089-6131

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Official URL: https://doi.org/10.22146/teknosains.91936

Abstract

Recent technological advances in microcontroller systems enable novel biogas monitoring capabilities. This study investigates microcontroller-based quantification of methane and hydrogen sulfide concentrations in biogas derived from anaerobic digestion. Anaerobic digesters were fed either 100% cow dung substrates or a 50:50 mixture of cow dung with municipal solid waste (MSW). Methane levels were monitored using an MQ-4 sensor, hydrogen sulfide via an MQ-136 sensor, and temperature with a K-type thermocouple, all integrated with an ATmega 2560 microcontroller system. The 100% cow dung digester produced biogas with maximum methane concentrations of 3488 ppm at 21 days, indicating improved methane production compared to the 50:50 mixture of cow dung with MSW. Hydrogen sulfide reached 195 ppm and 192 ppm for the 100% cow dung and mixed digesters. Mesophilic temperature conditions were maintained throughout the digestion process. Real-time quantification of biogas composition demonstrates the capabilities of microcontroller-based anaerobic digester monitoring to provide precise methane and hydrogen sulfide measurements.

Item Type: Article
Subjects: Ilmu Teknik > Ilmu Keteknikan Industri > Teknik Mesin (dan Ilmu Permesinan Lain)
Ilmu Teknik > Ilmu Keteknikan Industri > Teknik Enerji
Divisions: Jurusan Teknik Mesin > Prodi D3 Teknik Pendingin dan Tata Udara > Publikasi
Depositing User: I Gede Artha Negara
Date Deposited: 31 May 2024 00:45
Last Modified: 24 Aug 2024 21:20
URI: http://repository.pnb.ac.id/id/eprint/10712

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