Solar Thermal Forward Osmosis Seawater Desalination System, Ends Water Scarcity

Solar Thermal Forward Osmosis Seawater Desalination System, Ends Water Scarcity

Solar Thermal Forward Osmosis Seawater Desalination: Narippaiyur, a village in the Ramanathapuram District of Tamil Nadu, a drought-prone region in the state’s southeast corner, benefited 20,000 litres of freshwater produced from seawater per day after installing a solar thermal Forward Osmosis (FO) seawater desalination system in the area.

The customised demand-driven convergent water solution provided by Forward Osmosis will provide 2 litres of high-quality drinking water per person per day to the village’s 10,000 residents, resolving the village’s severe drinking water scarcity.

The Forward Osmosis system is designed to maximise recovery while keeping energy consumption low, allowing the possibility for resource recovery in solutions of high osmotic pressure, and reducing fouling of the membrane.

Tamil Nadu IIT Madras, in cooperation with Imperial – KGDS Renewable Energy, successfully built and tested this system in Mission Mode in the community to solve current and developing water problems.

Salinity, brackishness, and also a lack of suitable groundwater have contributed to the shortage of drinkable water in Ramanathapuram District in the state of Tamil Nadu.

The district’s coastline line is about 265 kilometres long, accounting for roughly 1/4th of the state’s entire coastal line length.

The Department of Science and Technology’s (DST) Water Technology Initiative has supported this field-based effort in the district through consortium members led by the Indian Institute of Technology Madras (IITM), KGiSL Institute of Technology (KITE), Empereal–KGDS Renewable Energy (P), and ICT Mumbai.

In Narippaiyur Village, Ramanathapuram District, Tamil Nadu, a forward osmosis system was installed and An LFR solar thermal system has been built at Ramanathapuram, Tamil Nadu’s Narippaiyur Village.

Unlike RO, which is performed at 50 bar pressure, the seawater FO technique utilises almost 2 bar of pressure. It offers versatility, efficiency, and minimal expenses associated with operation and maintenance.

In order to serve the local community, the generated water will be provided to villages and panchayats. This project by DST has the intention to enhance new developing technologies throughout the nation to deal with water scarcity.

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Link: Science and Technology News

Source: PIB


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