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Google Uses Recycled Wastewater to Cool Douglas County Data Center

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A new Google initiative wants to recycle wastewater to cool its hot Douglas County, Georgia data center. By collaborating with the local water authority (The┬áDouglas County Water and Sewer Authority – WSA), Google will not only avoid using freshwater for cooling purposes, but will also partially clean the wastewater (30%), thus helping the community use less power and emit less carbon dioxide.

The new system uses evaporative cooling, by spraying water and pumping outside air, a process that “commonly uses hundreds of thousands of gallons of water a day.”

What remains after evaporation is sent to another cleaning plant, built near the data center, which cleans it completely and sends it back to the Chattahoochee river.

Google even made a video explaining all the above:

[via gigaom]

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