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Abstract
In the process of processing sugarcane juice into granulated sugar in the sugar industry, refining sugarcane juice is a factor that affects the quality of sugarcane. The method used to refine sugarcane juice is called defakasi, which is mixing it with lime milk. The aim is to increase the pH of sugarcane juice. From this problem, a pH control of sugarcane juice is proposed with the overflow concept using the PID algorithm. For the controller using the outseal nano V5 type PLC and the pH sensor is sen0161. PID control is used to regulate the flow rate of lime milk that enters the mixing tank through the pump. The results showed that the pH sensor had a relative error of less than 5% with a fluctuation of 4.73%. The selected gain parameters were KP = 0.8; KI = 0.5 and KD = 0.2 so that the time required to increase the pH value of sugarcane juice which was initially around 4.5 - 5 to 7 took about 60 seconds. While the overshoot value reached 19.86% and the steady state error was 6.71%. And the results of the pH of sugarcane juice after being controlled showed a relative error of 12.28%.
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Copyright (c) 2025 Akhmad Fahruzi Akhmad, Andy Dwi Cahyo, Wahyu Setyo Pambudi
This work is licensed under a Creative Commons Attribution 4.0 International License.
References
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References
I. Milaniyah, R. D. Chrisnandari, and K. D. Setyawan, “Pengaruh Penambahan Susu Kapur Terhadap Nilai Turbidity Nira Tebu Dalam Pembuatan Gula Pasir,” DISTILAT J. Teknol. Separasi, vol. 8, no. 2, pp. 402–409, 2023, doi: 10.33795/distilat.v8i2.376.
W. F. Haloho, “Pengaruh Penambahan Larutan Susu Kapur dan Sodium Tripolyphospate (STPP) terhadap Kualitas Gula Kelapa (Cocos nucifera L),” 2014, [Online]. Available: http://repository.ub.ac.id/id/eprint/149826/
A. T. Sudarmaji and S. Hadi, “Pengaruh Penambahan Larutan Ca(OH)2 Terhadap Pembentukan Kerak pada Penguapan Nira Tebu,” J. Teknol. Separasi, vol. 7, no. 2, pp. 634–641, 2021, [Online]. Available: http://distilat.polinema.ac.id
D. M. Erwinda and W. H. Susanto, “PENGARUH pH NIRA TEBU (Saccharum officinarum) DAN KONSENTRASI PENAMBAHAN KAPUR TERHADAP KUALITAS GULA MERAH The Effect of Lime Concentration Additiaon and Cane Juice pH Value on Brown Sugar Quality,” J. Pangan dan Agroindustri, vol. 2, no. 3, pp. 54–64, 2014, [Online]. Available: https://jpa.ub.ac.id/index.php/jpa/article/view/52
Sariwahyuni, I. Amin, and Kurniawan, “Optimasi Penambahan Susu Kapur Pada Nira Mentah Terhadap Ph Dan Volume Endapan Ca3(Po4)2 Di Ptpn Xiv Unit Pabrik Gula Takalar,” J. Teknol. Kim. Miner., vol. 1, no. 2, pp. 86–89, 2022, doi: 10.61844/jtkm.v1i2.267.
H. M. S. Silalahi, N. Hafiza, F. M. Tiara, R. Saputri, M. Husnah, and R. Ong, “PENGARUH pH TERHADAP TURBIDITI NIRA ENCER DAN SUHU IMBIBISI TERHADAP HASIL EKSTRAKSI NIRA SEBAGAI BAHAN PEMBUATAN GULA KRISTAL PUTIH,” CHEDS J. Chem. Educ. Sci., vol. 7, no. 2, pp. 174–181, 2023, doi: 10.30743/cheds.v7i2.8133.
A. Y. H. Putra and W. S. Pambudi, “Sistem Kontrol Otomatis Ph Larutan Nutrisi Tanaman Bayam Pada Hidroponik Nft (Nutrient Film Technique),” J. Ilm. Mikrotek, vol. 2, no. 4, pp. 11–20, 2017.
M. Gregoryan, J. Andjarwirawan, and R. Lim, “Sistem Kontrol dan Monitoring Ph Air serta Kepekatan Nutrisi pada Budidaya Hidroponik Jenis Sayur dengan Teknik Deep Flow Techcnique,” J. Infra, vol. 7, no. 2, pp. 1–6, 2019.
“Perancangan Sistem Kontrol pH dan Suhu Air Menggunakan Metode Fuzzy dan Terintregasi dengan Internet of Things (IoT) pada Budidaya Ikan Hias”.
DFRobot, “PH meter ( SKU : SEN0161 ),” 2021. [Online]. Available: https://wiki.dfrobot.com/PH_meter_SKU__SEN0161_