Optimized Parameters of Wastewater Treatment System using Fuzzy Control

Abstract

This paper aim is to design an education kit for wastewater system that can maintain the standard parameters of neutralized wastewater by maintaining the suitable pH (Potential Hydronium) level and temperature of the wastewater from industry by using fuzzy controller. This study is capable to control the unwanted bacteria by automatic regulatory and monitoring the temperature, pH and water level. Fuzzy logic method is use to control and monitor pH level as well as the temperature during clarifying process because pH control process is a complex physical-chemistry process of strong individuality of time-varying and non-linearity properties. Pumps used in the prototype need to be controlled precisely to enable either acid or base to be pumped into mix tank of the wastewater treatment. The control and monitoring system, which has been designed through LabVIEW front panel will ease end user in inspection of the parameters involve in wastewater treatment. The entire system output could be observed remotely in Data Dashboard application in smartphone or tablet. The GUI was designed and interfaced with the prototype constructed to carry out the process of controlling and monitoring the required parameters. Few tests were conducted repetitively to analyse the performance of the system parameters. It was found that the controlled set point fixed within the range of pH 7.6-8.4, temperature 25-29.44 Celsius and water level of 20cm in this research that was effectively achieved in the entire test conducted. In addition, the wastewater system accuracy and performance is 96.72% and 90.22% respectively.