Smart Irrigation System in Goa Uses River Bank Filtration Technology to Transform Sustainable Farming

A sensor-based smart irrigation system using river bank filtration technology and controlled through a web and mobile application is helping farmers in Goa conserve water, improve crop production and monitor irrigation remotely.

Installed at the Sal River near Navelim and Nauta Lake at Cortalim, the innovative system has significantly reduced water wastage while making irrigation more efficient and accessible for local farming communities.

The project was implemented by The Energy and Resources Institute (TERI) in collaboration with the National Institute of Technology (NIT), Goa, with support from the Department of Science and Technology (DST), Government of India, under the Demand Driven Mission – Water Technology Initiative.

The smart irrigation system uses moisture sensors to detect real-time soil water levels. These sensors automatically activate the water motor only when irrigation is required and switch it off once optimal moisture levels are reached. This precision-based irrigation method prevents unnecessary water use, reduces soil erosion and helps maintain long-term soil health.

Transformative Technology

For daily wage farmers, the technology has been especially transformative. By automating irrigation, it reduces manual labour, saves valuable time and allows farmers greater flexibility to focus on harvesting and selling produce in local markets, ultimately improving their financial stability.

A key feature of the project is its use of River Bank Filtration (RBF) technology, coupled with a sensor-controlled irrigation network. This is the first system of its kind in the region.

River Bank Filtration works by extracting water from wells located near rivers and lakes. As river water naturally passes through riverbed sediments, the sediments filter out contaminants. Contaminants include bacteria, suspended particles and toxic metals. This natural purification method improves water quality before it reaches farmland.

Navelim and Nauta Lake Get Affordable RBF Wells

Affordable RBF wells were installed to treat polluted water from the Sal River near Navelim and Nauta Lake at Cortalim. Powered by solar energy, these off-grid irrigation systems provide farmers with access to clean water even in remote agricultural areas.

The improved water quality is supplied through a structured pipeline system. The water has lower turbidity and less bacterial contamination. This enable healthier crop growth and better agricultural yields.

Beyond its immediate benefits, the initiative presents a scalable model of sustainable agriculture for Goa’s small landholding farmers. It demonstrates how clean water technology, renewable energy and smart farming solutions can work together. And in the process address water scarcity issue while boosting productivity.

The use of River Bank Filtration offers an affordable and effective solution. It removes contaminants and ensures reliable irrigation. This makes it apromising approach for farming communities across India.