Perancangan Sistem Monitoring pH Dan Temperatur Pada Reaktor Biogas Berbasis Internet Of Things (IoT)

Devana, Queen Nabilah (2026) Perancangan Sistem Monitoring pH Dan Temperatur Pada Reaktor Biogas Berbasis Internet Of Things (IoT). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Proses fermentasi anaerob pada bioreaktor biogas dipengaruhi oleh kondisi pH dan temperatur substrat, sehingga diperlukan sistem monitoring untuk kedua parameter tersebut. Penelitian ini merancang sistem monitoring pH dan temperatur berbasis Internet of Things (IoT) menggunakan mikrokontroler ESP32 Devkit V1 dan Arduino Uno, sensor pH SEN0169 V2, dan sensor temperatur RTD PT100, dengan biogas flowrate (sensor F1031V) sebagai data pendukung untuk menganalisis pengaruh pH dan temperatur terhadap aktivitas mikroorganisme. Data pengukuran ditampilkan pada dashboard web dan LCD TFT, serta disimpan pada Firebase, Google Spreadsheet, dan microSD Card. Hasil evaluasi performansi menunjukkan sensor pH, temperatur, dan biogas flowrate masing-masing memiliki akurasi 97,47%, 98,31%, dan 89,74% terhadap alat pembanding, dengan sistem mampu mengirim data secara real-time dengan delay ±4 detik dan tetap menyimpan data secara lokal saat koneksi internet terputus. Selama lima hari pengamatan, pH substrat berada pada rentang 6,84–7,29, temperatur 21,78–24,82°C, dan biogas flowrate 0,69–1,23 L/menit, dengan pH dan temperatur terbukti memengaruhi aktivitas mikoorganisme. Sistem yang dikembangkan terbukti mampu mendukung pemantauan kondisi bioreaktor biogas secara berkelanjutan.
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The anaerobic fermentation process in a biogas bioreactor is influenced by the pH and temperature of the substrate, so a monitoring system for these two parameters is required. This study designed an Internet of Things (IoT)-based pH and temperature monitoring system using the ESP32 Devkit V1 and Arduino Uno microcontrollers, a SEN0169 V2 pH sensor, and a PT100 RTD temperature sensor, with biogas flow rate (F1031V sensor) as supporting data to analyze the effects of pH and temperature on microbial activity. Measurement data is displayed on a web dashboard and a TFT LCD screen, and is stored on Firebase, Google Spreadsheets, and a microSD card. Performance evaluation results show that the pH, temperature, and biogas flow rate sensors have accuracies of 97.47%, 98.31%, and 89.74%, respectively compared to reference instruments, with the system capable of transmitting data in real-time with a delay of ±4 seconds and continuing to store data locally when the internet connection is lost. During the five-day observation period, the substrate pH ranged from 6.84 to 7.29, the temperature from 21.78 to 24.82°C, and the biogas flow rate from 0.69 to 1.23 L/minute, with pH and temperature proven to influence microbial activity. The developed system has been proven capable of supporting the continuous monitoring of biogas bioreactor conditions.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Biogas, Monitoring, Internet of Things(IoT), pH, Temperatur, Biogas, Monitoring, Internet of Things(IoT), pH, Temperature.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5105 Data Transmission Systems T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7871.674 Detectors. Sensors T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7878 Electronic instruments T Technology > TP Chemical technology > TP359 Biogas
Divisions:	Faculty of Vocational > Instrumentation Engineering
Depositing User:	Queen Nabilah Devana
Date Deposited:	19 Aug 2026 07:05
Last Modified:	19 Aug 2026 07:05
URI:	http://repository.its.ac.id/id/eprint/144365

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