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Desalination Plants Increase - As do Concerns http://apocadocs.com/s.pl?1229621265
...Is this a valid source of drinking water? What are the ramifications of desalination?
The desalination process removes salt and other minerals from water to make it drinkable. This is achieved by filtering using reverse osmosis. It sounds a good idea, just to take the salt out of the sea water and the result is water for us to drink; so why the fuss? And is it destructive to the oceans?
“Yes,” says Wal Grahame, “It is destructive. A desalination plant here will have a footprint bigger than the MCG [Melbourne Cricket Ground] and four stories high. To produce 50 gigs of water they will have to emit 1 million tonnes of CO2 into the atmosphere.”... Around 11,000 litres of sea water per second are pumped into the desalination works resulting in between 25 to 60 tonnes of waste. This is sludge from the pretreatment process which uses chemicals to remove solid bits and to destroy any biological life such as, fish, plankton and biota. The chemicals used in the pre treatment process are chlorine, caustic soda, hydrochloric acid, and ferric chloride. Some of these chemicals get discharged back into the sea. Using the reverse osmosis process, the water is then pushed through a series of membranes which filters out everything except the water.
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[Read more stories about:
dead zones, contamination, water issues]
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'Doc Michael says:
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At least we won't be thirsty as the planet boils -- and becomes one giant dead zone.
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