Comments by "Andre Falksmen" (@andrefalksmen1264) on "10 MASSIVE Cities That Should NOT Exist" video.
-
7
-
@KuroshiKun let's take a look at the numbers, industrial-scale reverse osmosis requires between 3.5 and 5 kilowatt-hours of electricity per cubic meter of water! To pump one cubic meter of water to a height of 1 m, requires .002kwh of electricity, do you see the price difference is three orders of magnitude!
That is all aside from the fact that Aqueduct water, after being pumped uphill can generate electricity on its way back down hill, and desalinated water will also still need to be pumped.
From time immemorial, from the ancient Sumerians on, human beings bring the resources to them, that is the basis of civilization. California's the aqueduct program is not impressive by historical standards, the longest Aqueduct built by the Romans was 426 km. The length of the Chinese south-north diversion aqueduct is over 1,200 kilometers.
Until there's some massive leap in power generation technology, reverse osmosis is a pipe dream.
You want to know where the western United States could get the water needs, look up a proposed idea of the 1960s called the North American Water and Power Alliance.
1
-
1
-
@KuroshiKun no I'm American, it's just easier to do the calculations in metric units for anything that has to do with science. Actually, I don't even know the calculations in imperial units.
So, like so much in life and the issue with civilization, it is a people problem not a natural resource problem. Politically, America's screwed oh, yes it is for the clean people to tap water from the Mississippi River, I wouldn't even say that is the best source to tap, but all sources face the same issue. You cannot maintain California's population, let alone agriculture, or what's left of Industry, on desalinated water.
I don't know what scientific journals you're reading, but desalinization it's not getting cheaper, the technology is not changing, and there is not the power source sufficient to make it cheaper. Once again, we're talkin about three orders of magnitude, 30 x! Even building nuclear power plants will be a political fight in California, and much like today in aqueduct, a nuclear power plant is expensive on the front end, cheaper on the backend. Regardless, the era when America could do both things and Achieve great results has long since passed.
1
-
1
-
1
-
1
-
1