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Salty water anytime, but we won’t drink sewage! : Comments
By Charles Essery, published 14/10/2019The solution has been with us for millennia and the technology to deliver it has been used and applied for nearly 50 years around the world.
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Desalinated water using traditional reverse osmosis through membrane technology delivers clean potable water, but at huge cost with quite massive energy usage!
It is possible to reuse effluent as irrigation water, leaving clean fresh water from other sources available for town water.! But falls, because of the high energy component!
New space-age desalination, i.e., deionisation dialysis desalination makes more potable water 95% for quarter of the energy input!
And field trialled in Texas a few years ago as cost-effective, broad-scale irrigation! And astutely ignored by Ozzie pollies due to the sovereign risk this would involve for our water barons, some of who would sem to be governments or government agencies, others, debt-laden, tax-avoiding, profit-repatriating, price-gouging foreigners!?
Texas was using more expensive to make energy (part nuclear) delivered at a profit, for around one-third of that charged here, from cheaper to make, coal-fired energy! TBC.
Alan B.