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Carst and Walker
Water sustainability

The new water technologies that could save the planet

What are the new and emerging technologies that will help business overcome the scarcity of clean, fresh water?

The well was a transformative invention, though it is often overlooked. This source of freshwater, vital for the expansion of inland communities, dates back nearly 10,000 years – 3,000 years before the wheel was ever imagined.

The well is but one of a long list of innovations in water technology that have enabled human development to continue apace. Sophisticated pipeline networks and treatment plants today furnish us with this elixir of life and industry. As intense pressure is placed on the planet’s limited water supplies, businesses are again turning to technological innovation.

New and emerging inventions should see human civilisation through the 21st century and, with any luck, the next 10,000 years.

Nanotechnology in filtration: According to the World Health Organisation, 1.6 million people die each year from diarrhoeal diseases attributable to lack of safe drinking water as well as basic sanitation. Researchers in India have come up with a solution to this perennial problem with a water purification system using nanotechnology.

The technology removes microbes, bacteria and other matter from water using composite nanoparticles, which emit silver ions that destroy contaminants. “Our work can start saving lives,” says Prof Thalappil Pradeep of the Indian Institute of Technology Madras. “For just $2.50 a year you can deliver microbially safe water for a family.”

It is a sign that low-cost water purification may finally be round the corner – and be commercially scaleable…..

The Guardian: Read the full article

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