Studi Pengaruh pH Dan Total Dissolved Solids (TDS) Terhadap Kinerja Detektor Mikroplastik Berbasis Iot Di Sungai Deli Medan

Abstract

Microplastics are one of the main pollutants affecting water quality in rivers, including the Deli River in Medan. This study aimed to analyze the impact of pH and Total Dissolved Solids (TDS) on the performance of an Internet of Things (IoT)-based microplastic detector. The research utilized a pH Meter SEN0161 V1 sensor, a TDS Meter V1 sensor, and an optical-based microplastic detector BPW34 operated by an ESP32 microcontroller, with data transmitted via the IoT platform ThingSpeak for real-time visualization. The Coefficient of Determination (R²) values obtained at the upstream, midstream, and downstream locations were 0.0873, 0.920, and 0.89155, respectively. Changes in pH affected the interaction of microplastics with light, impacting the accuracy of the detector. Additionally, with R² values for TDS at upstream, midstream, and downstream locations of 0.955, 0.960, and 0.921 respectively, an increase in TDS tended to enhance the reflectance of microplastics. This study contributes to the development of more effective IoT-based water quality monitoring systems by incorporating additional water parameters.