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Google Cools Data Center With Bathroom Water
judgecorp writes "Google is cooling its data center in Douglas County, Georgia, using 'recycled' water that has been through the bathtubs and toilets of the surrounding community. So called 'grey' water is perfectly adequate for the data center's cooling system which relies on evaporation (the wet T-shirt effect), says Google."
"Graywater" is water that does not contain human waste, but has been used for other purposes and isn't fit for drinking.
"Blackwater" is sewage water containing human waste (and easily confused with the mercenary business formerly owned by Erik Prince).
http://alternatives.rzero.com/
I'm no potty expert, but I thought that water that is output from a toilet is called black water, water collected from the bathtub, and kitchen are called grey water, and what they are actually using is called treated water.
Am I just behind the times on the terminology or is the article's writer just being sloppy?
What comes from toilets is 'black water', but 'grey water'. Grey comes from showers, washing machines, etc. It's specifically that which has been used, but has a low risk of pathogens in it.
From the article, it sounds like they're using a blend of the two ... but they never linked to the March 15th Jim Brown blog post. From reading his blog, he states, "We worked with the WSA to build a side-stream plant about five miles west of our data center that diverts up to 30 percent of the water that would have gone back into the river", while the article linked to states "about 30 percent of the water is diverted from the WSA system".
The article makes it sound like they're getting the water *before* it would have been cleaned by the water treatment plant ... from the blog post, I'd say it's after it's been treated, and getting it before it would have been sent back to the river. So it's treated wastewater, which would've already gone through some sort of system to remove pathogens.
Build it, and they will come^Hplain.
There is a form for everything. In some states in the US, it's illegal for you to collect and use rainwater for anything. States grant exclusive right to water catchment to various water companies, so for anyone else to capture that water before it reaches the reservoir is effectively stealing.
grey water does not have toilet water in it, that's called black water, and should be completely different from grey water.
My g/f's from Japan and when we went to visit recently I noticed a lot of homes had toilets with a sink built into the top of the toilet tank. When you flushed, the water to fill the tank came out a faucet and you could wash your hands with it. Not only recycles but saves room in a 1/2 bath... a simple little thing we should see more of here in the states. As an example...
The summary (and Google) are being misleading here. This is treated sewage that would have been otherwise dumped in the local river - thus it is almost drinkable, and almost certainly cleaner than the river water itself. "Greywater" usually describes untreated sewage from non-toilet sources (showers, sinks, dishwashers, clothes washers).
W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
Greywater is wastewater generated from domestic activities such as laundry, dishwashing, and bathing, which can be recycled on-site for uses such as landscape irrigation and constructed wetlands. Greywater differs from water from the toilets which is designated sewage or blackwater to indicate it contains human waste.Source: http://en.wikipedia.org/wiki/Greywater
Reclaimed water or recycled water, is former wastewater (sewage) that is treated to remove solids and certain impurities, and used in sustainable landscaping irrigation or to recharge groundwater aquifers. The purpose of these processes is sustainability and water conservation, rather than discharging the treated water to surface waters such as rivers and oceans. Source: http://en.wikipedia.org/wiki/Reclaimed_water
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