A Low-Cost IoT Based Automatic Water Quality Monitoring System for Textile Industry.

Water is one of the most vital elements for livelihood but at the same time, it is polluted by different kinds of fastest-growing industries like textiles, leather, sugar, etc. The textile industry is one of the most water-consuming sectors in Bangladesh. A huge amount of water is being used in different textile processes and consequently, a high volume of contaminated water is being produced. Both the textile processes, machinery, and environment are very sensitive to water parameters. There are significant numbers of water quality monitoring systems available that are very costly, have no notification system for critical conditions, and are also not automated. To mitigate these problems, we propose a low-cost IoT-based automatic water quality monitoring system that provides real-time information about water parameters and transmits data through both Bluetooth and Wi-Fi. Real-world evaluation of our system shows that wastewater from the washing and untreated dyeing process has high-level contamination compared with usable water. The device can detect the abnormal value of different parameters such as pH, TDS, turbidity, and temperature when contaminated water gets mixed with usual water and alarm the personnel through email and SMS. The device can be used to monitor the quality of water for any specific water-sensitive process and condition of the treatment plant.