The wayward ramblings of Us.

Friday, September 28, 2007

Plop plop fizz fizz oh what a good way to water plants it is

I wonder what Regina does with its waste water?

[10 minutes later]
OK, so I looked it up. At the McCarthy station they remove "large objects".

Then they pump it to the North of Dewdney station, where "grit" settles into chambers, and is buried at the dump.

Also, "organic sludge" settles to the bottom while "grease, oil and wax float to the top. These are removed.

Then they use bacteria to break down the sludge. This creates methane which is used to heat the plant. (cool.)

Then press the sludge, squeezing out water, and making "sludge cakes".

Then more bacteria and more breaking down stuff. 30 days of it in fact.

Then chemicals added to take out the phosphorous.

Then ultraviolet light to disinfect.

Then back into the creek.

--

Interesting. Here's an alternative being tried out in the Saskatchewan towns of Halbrite and Stoughton.

http://www.canada.com/reginaleaderpost/news/business_agriculture/story.html?id=e92e2fb0-ef93-4850-8956-40bb368ebf02

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