Today, many agricultural fields near big cities use water from drains and drainage channels for irrigation. However, factories sometimes release chemical-contaminated wastewater into these drains. When this polluted water reaches the fields, it slowly reduces the quality of the soil and increases the amount of harmful chemicals in fruits, vegetables, and other crops. This directly affects farming, the environment, and people’s health.

To solve this problem, we have developed an Arduino and TDS Sensor based Smart Water Safety Valve System. Farmers can easily install this system in their irrigation pipe. When chemical-contaminated water or water with a high TDS level flows through the pipe, the TDS Sensor detects the water quality and sends a signal to the Arduino. The Arduino then controls a Servo Motor to immediately close the valve, preventing the polluted water from reaching the field. As soon as the water becomes clean and safe again, the valve automatically opens, allowing clean water to flow for irrigation.

This project helps farmers use safe water for irrigation, improves crop quality, protects soil for a longer time, and helps provide healthier and safer food to people. It also promotes better water usage and introduces a smart and modern technology solution for safer and more efficient farming.

This project is a Best Project Idea for Agriculture, Water Management, Resource Management, Health & Hygiene, Emerging Technology, Waste Management, and Innovation.