Pengembangan Sistem Instrumentasi Pada Plant Pengolah Limbah Organik Untuk Pembuatan Pupuk Organik Cair

Aden, Sukma Nur (2025) Pengembangan Sistem Instrumentasi Pada Plant Pengolah Limbah Organik Untuk Pembuatan Pupuk Organik Cair. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dengan potensi limbah organik yang mencapai 57,25% dari total sampah padat di Surabaya Timur, sangat penting untuk mengembangkan sistem yang memungkinkan limbah organik tersebut diolah menjadi produk bernilai tambah seperti pupuk organik cair (POC). Meskipun pengolahan manual untuk pembuatan POC masih dapat dilakukan, akan tetapi dengan adanya penerapan sistem otomatisasi akan memastikan konsistensi dan kualitas produk yang lebih baik. Penelitian ini bertujuan untuk mengoptimalkan formula POC, merancang sistem instrumentasi pada plant pengolah sampah organik untuk pembuatan POC, dan mengevaluasi performa kinerja sistem instrumentasi serta hasil produksi setelah implementasi sistem baru. Plant Pengolah Limbah Organik untuk pembuatan POC berfokus pada tiga sub proses: pencacahan bahan baku, mixing dengan bioaktivator, dan fermentasi. Sistem pencacahan bahan baku menggunakan kontrol On/Off untuk motor chopper. Proses mixing mengendalikan level bioaktivator menggunakan tiga katup solenoid (SDV) yang dikontrol oleh timer tanpa umpan balik. Pada proses fermentasi, dikembangkan pengendalian temperatur menggunakan aktuator heater, serta pemantauan nilai pH menggunakan sensor pH 4502-C dan temperatur menggunakan sensor DS18B20. Validasi sensor menunjukkan akurasi sensor pH sebesar 97,76% dan sensor DS18B20 sebesar 99,18%. Pengujian kinerja aktuator pada plant POC menunjukkan fungsinya berjalan semestinya. Dari hasil analisis, sampel dengan kontrol suhu dan konsentrasi EM4 serta molase yang lebih tinggi (sampel 4) menunjukkan hasil fermentasi yang lebih optimal. Semua sampel, meskipun dengan perlakuan berbeda, berhasil menghasilkan POC dengan karakteristik pH dan temperatur akhir yang sesuai standar, yaitu pH 5–7 dan temperatur 30–35°C.
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With organic waste accounting for 57.25% of the total solid waste in East Surabaya, it is essential to develop a system that allows this organic waste to be processed into value-added products such as liquid organic fertilizer (LOF). Although manual processing for LOF production is still feasible, the implementation of an automated system will ensure better consistency and quality of the product. This research aims to optimize the LOF formula, design an instrumentation system for the organic waste processing plant for LOF production, and evaluate the performance of the instrumentation system and production results after the implementation of the new system. The organic waste processing plant for LOF production focuses on three subprocesses: raw material chopping, mixing with bioactivator, and fermentation. The raw material chopping system uses on/off control for the motor chopper. The mixing process controls the bioactivator level using three solenoid valves (SDV) that are controlled by a timer without feedback. In the fermentation process, temperature control is developed using a heater actuator, and pH is monitored using a pH 4502-C sensor, while temperature is monitored using a DS18B20 sensor. Sensor validation showed that the pH sensor has an accuracy of 97.76% and the DS18B20 sensor has an accuracy of 99.18%. The actuator performance testing in the LOF plant demonstrated that it functions properly. From the analysis results, the sample with controlled temperature and higher concentrations of EM4 and molasses (sample 4) showed more optimal fermentation results. All samples, despite different treatments, successfully produced LOF with final pH and temperature characteristics that meet the standards, which are pH 5–7 and temperature 30–35°C.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Pupuk Organik Cair, Mesin Pencacah, Bioaktivator, Fermentasi, Interface Organic Fertilizer, Chopper, Bioactivator, Fermentation, Interface
Subjects:	T Technology > T Technology (General) > T58.8 Productivity. Efficiency T Technology > TJ Mechanical engineering and machinery > TJ213 Automatic control. T Technology > TJ Mechanical engineering and machinery > TJ223.P76 Programmable controllers
Divisions:	Faculty of Vocational > Instrumentation Engineering
Depositing User:	Sukma Nur 'aden
Date Deposited:	31 Jul 2025 01:36
Last Modified:	31 Jul 2025 01:36
URI:	http://repository.its.ac.id/id/eprint/123287

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