Article Per Year (5 Year)
p-Index From 2021 - 2026
1.945
P-Index
This Author published in this journals
All Journal Jurnal Sosioteknologi Jurnal Dampak Jurnal Otomasi Kontrol dan Instrumentasi Jurnal Elektronika dan Telekomunikasi Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal ULTIMA Computing Journal of Robotics and Control (JRC)
Ekawati, Estiyanti
Unknown Affiliation
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

Published : 11 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 11 Documents
Search

 1   2 
Kontrol Adaptif Referensi Model untuk Netralisasi pH dalam Pengolahan Air Limbah Batik Nazuwatussya'diyah, Nazuwatussya'diyah; Ekawati, Estiyanti; Pradipta, Justin
Jurnal Otomasi Kontrol dan Instrumentasi Vol 18 No 1 (2026): Jurnal Otomasi Kontrol dan Instrumentasi
Publisher : Pusat Teknologi Instrumentasi dan Otomasi (PTIO) - Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/joki.2026.18.1.4

Abstract

The batik industry generates wastewater with elevated pH levels due to sodium hydroxide usage in dyeing processes, frequently exceeding the regulatory standard of pH 6–9. Traditional dilution methods prove economically inefficient, necessitating more adaptive control strategies. This research designs and simulates a nonlinear adaptive control system based on Model Reference Adaptive Control (MRAC) for pH neutralization using acetic acid. The Continuous Stirred Tank Reactor (CSTR) mathematical model was developed from mass balance, acid-base equilibrium, and electroneutrality principles, then simulated using Ordinary Differential Equation (ODE) functions in MATLAB. MRAC performance was compared with conventional PI controller across various initial wastewater pH conditions. Simulation results demonstrate that MRAC achieves faster convergence, reaching pH 7 in 2488.68 seconds from initial pH 9, compared to PI controller (3080.96 seconds) or uncontrolled system (10225 seconds). With settling time of 2377 seconds versus 2566.4 seconds for PI, MRAC reduces neutralizer consumption by 0.61% (9.5380 L versus 9.5969 L) while maintaining safety criteria above the lower pH bound of 6.80. Lyapunov stability analysis confirms the asymptotic stability of the adaptive controller. This study demonstrates that MRAC offers superior performance for batik wastewater pH control while reducing dependency on uneconomical dilution methods.
Co-Authors Abdul Hamid Argiliana, Shania Bahiuddin, Irfan Bambang Sunendar Purwasasmita, Bambang Sunendar Boudaoud, Mohammed Budiawan, Irvan Cahya, Dito Eka Cahya, Zaid Diyah, Nazuwatussya’ Eko Mursito Budi Justin Pradipta Juwandana, Alfisena Kho, Philip Inarta Komarudin Kudiya, Komarudin Mukhlish, Faqihza Mulyawan, Naufan Aurezan Nazuwatussya'diyah, Nazuwatussya'diyah Nazuwatussya’diyah, Nazuwatussya’diyah Nugraha, Ashari Budi Nugroho, Tsani Hendro Nurul Hikmah Parsaulian Siregar Putri, Indah Radityo Ratuannisa, Tyar Saputra, Dede Irawan Saragih, Martha Anjela Siregar, Parsaulian I. Srie Rejeki, Eggie Rizki Supriyadi, Aep Taufiqurrohman, Heru Yulia, Elfi