Design and Implementation of an IoT-Based Electrocoagulation System for Textile Wastewater Color Degradation
Abstract
This paper presents the design and implementation of an electrocoagulation system for the degradation of color pollutants in textile wastewater. The system utilizes electrochemical reactions at metal electrodes to generate hydroxide flocs that bind and remove dissolved contaminants. It integrates pH, turbidity, and water level sensors to automate operation, while an ESP32-based controller enables remote monitoring and control via the Internet of Things (IoT). A hybrid power configuration, combining solar energy and grid electricity, is employed to enhance energy efficiency and sustainability. Experimental results indicate that the system can effectively reduce color intensity and chemical oxygen demand (COD) by more than 90% under optimal voltage conditions (10–60 V). The proposed design supports Sustainable Development Goal (SDG) 6: Clean Water and Sanitation by offering a low-cost, compact, and decentralized wastewater treatment alternative for small and medium textile industries.
Keywords—Electrocoagulation, textile wastewater, color degradation, IoT monitoring, hybrid energy, SDG 6.
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