Google+

No Filter Water Purification

A new water purification technique relies on an injection of CO2 gas into a water stream...
A new water purification technique relies on an injection of CO2 gas into a water stream rather than filters or membranes to separate particles from water(Credit: brozova/Depositphotos)

Most common water purification methods rely on mechanical filters or a membrane to remove contaminants. But over time, these become clogged and need to be replaced. A new technology developed by researchers at Princeton University doesn’t require filters at all, instead relying on the injection of CO2 gas to change the water’s chemistry and separate waste particles based on their electrical charge. read more