Design and Simulation of PID Controller for PH Neutralization Process
Amyrah Fadzlu-llah1, M Ismail Yusof2, Azavitra Zainal3, Aisyhah Azhar4, Ainul Hakimah Karim5, Mohd Aliff6, Sairul Izwan Safie7

1Amyrah Fadzlullah*, University Kuala Lumpur Malaysian Institute of Industrial Technology, Persiaran Sinaran Ilmu, Masai, Johor, Malaysia.
2M Ismail Yusof, Robust Industrial Control & Autonomous System Research Group, University Kuala Lumpur Malaysian Institute of Industrial Technology, Persiaran Sinaran Ilmu, Masai, Johor, Malaysia.
3Azavitra Zainal, Lecturer, Instrumentation And Control Engineering Section, University Kuala Lumpur, Malaysian Institute Of Industrial Technology.
4Aisyhah Azhar, Universiti of Kuala lumpur, British Malaysian Institute.
5Ainul Hakimah Karim, Instrumentation And Control Engineering Section, University Kuala Lumpur, Malaysian Institute of Industrial Technology
6Mohd Aliff, Instrumentation And Control Engineering Section, Universiti Kuala Lumpur, Malaysian Institute of Industrial Technology
7Sairul Izwan Safie, University Kuala Lumpur, Malaysian Institute of Industrial Technology.
Manuscript received on December 15, 2019. | Revised Manuscript received on December 20, 2019. | Manuscript published on January 10, 2020. | PP: 2740-2743 | Volume-9 Issue-3, January 2020. | Retrieval Number: C9236019320/2020©BEIESP | DOI: 10.35940/ijitee.C9236.019320
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Abstract: PH control system plays an important role in a wide range of industrial applications particularly in wastewater treatment management. Untreated wastewater generally contains high level of organic materials, numerous pathogenic microorganisms which raised concern in environmental and health hazards. The high non-linearity and time varying in pH neutralization process and the uncertainty of the plant dynamics are the key challenges of the pH control systems. There are many sophisticated PID tuning method, however conventional tuning procedure remains effectives in industries. The overall control scheme involves controls of flow rates of acid and base solutions. Ziegler Nichols method tuning has been developed for first order and second order system, in which, also applicable for pH neutralization control model. This paper elaborates the performance of transient response for pH neutralization process by using empirical techniques through the simulation software along with Proportional-Integral-Derivative (PID) for controlling purpose. A result of comparison between Ziegler-Nichols versus First Order plus Time Delay (FOPTD) of pH control system design for PID controller is seeing in a graph. 
Keywords: PID Control, PH Neutralization, ZN Tuning.
Scope of the Article:  Emulation and Simulation Methodologies for IoT