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.
.. Continue Reading "SodaStream" technique delivers low-cost, filter-free water purificationCategory: Science
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