You have thousands of kilometres of coast; if you don't dessalinate it's because you don't want to.
America does desalinate in it's coastal regions. Increasing desalination is prohibitively expensive. Shipping water inland is preposterously expensive. Even if you spend the money, scaling up takes years or even decades.
There are reasons America, like nearly all other nations, gets a relatively small amount of it's fresh water from desalination.
[...] Increasing desalination is prohibitively expensive. Shipping water inland is preposterously expensive. Even if you spend the money, scaling up takes years or even decades.
Just like oil and natural gas?
There are reasons America, like nearly all other nations, gets a relatively small amount of it's fresh water from desalination.
The way desertification is advancing in California (there must be other places facing the same problem) there will be a tipping point where mass scale desalination will be implemented.
Orrr... a tipping point where the human population becomes wholly unsustainable and starts to tear itself apart in "The Water Wars", as they'll be called.
America actually does do desalination in several locations along the California coast and is expanding.
A good start.
Like everything in life, it's not that simple.
One thing that is simple, however, is googling the answer to this question before making an uninformed response.
There is a limit for how much water consumption can be reduced, how much water can be reused and how much preserved untouched.
It is actually a subject I actually find interesting. All the criticism put towards the technology could be as easily applied to the internal combustion engine: its inefficient, produces larges amounts of residues and is expensive to run.
There are several large scale operations already in place (Israel sources its water from the sea, as well as several other nations where drinking water is scarce) and even hotels use it to source water for swimming pools.
There is, of course, the problem of distribution but we've already invented pipelines, haven't we? And a water pipeline bursting could cause floods but no great concern lasting environmental damage, unlike oil or liquified natural gas.
so you agree with me? it's not simple. it's not just because "you don't want to". desalinization is extremely technically challenging.
All the criticism put towards the technology could be as easily applied to the internal combustion engine: its inefficient, produces larges amounts of residues and is expensive to run.
This was an attempt at being sarcastic.
If we're running a technology by all means obsolete (internal combustion engine) and do it overlooking its drawbacks running current technology for dessalination can very well follow the same reasoning.
I read a good deal of criticism towards dessalination regarding the disposal of the brine. That is a fair point but those brines could very well be reprocessed for minerals harvesting including lithium, which has great demand. Even by just harvesting the salt, we'd be getting an important resource.
There is, of course, the problem of distribution but we've already invented pipelines, haven't we?
This is true and we already do it. Fresh water is distributed over huge distances using high pressure and volume. The infrastructure already exists.
And a water pipeline bursting could cause floods but no great concern lasting environmental damage, unlike oil or liquified natural gas.
I've lived where this happened once and it was not pretty. A low point of high density residencial area got flooded. Water reached somewhere around 80cm high. Damage to cars and ground stories, water distribution interrupted for 3 days. But no lasting damage.
And what do we do with all the salt?
Put it on fried potato
I'm going to be dense as I have no knowledge in this area, but can you just put it back in the ocean? I assume with sea levels rising the ocean is getting less salty so it wouldn't be harmful as long as we spread it out/did it slowly?
Yes, but how it's done is hard and expensive. If you just pump it into one spot you kill everything around with high salt concentrations. You can pump it far out to sea and disperse it over a large area, but that requires pipes going out to sea. The pipes would probably be made of metal, which salt water and metal don't mix well, not to mention the brine in the pipe. You also need pumping stations along the pipe because it can't perpetually slope down, and if it goes below sea level it needs to be pumped out.
Basically, it's complicated and expensive and not as easy as just dumping it into the ocean.
Reprocess it for minerals harvesting, like lithium, or just evaporate it and keep the salt, which by itself is a resource for chemical industry.
If it were that easy then it wouldn't be an issue.
I made that same observation some time back and the answer I got was: money.
Why spend the money to develop a technology to harvest a mineral from the sea with probably minimal to no impact to the environment when you can simply use already existing tech and just open a hole in the ground?
Desalination produces a massive pull on using more fossil fuels. It’s an emergency procedure. Not an end goal. Read a book.
Well, put me in a red dress and pony tails and call me Shirley..
Haven't we discovered other ways to harvest energy besides fossil fuels? Perhaps wind a solar might be an answer to that problem?
My own country is in the process of converting a former refinery into a green hydrogen plant and part of the conversion goes into installing a few gigawatts of power in solar and wind.
Couldn't this same solution be used for desalination?
You have thousands of kilometres of coast; if you don't dessalinate it's because you don't want to.
America does desalinate in it's coastal regions. Increasing desalination is prohibitively expensive. Shipping water inland is preposterously expensive. Even if you spend the money, scaling up takes years or even decades.
There are reasons America, like nearly all other nations, gets a relatively small amount of it's fresh water from desalination.
Just like oil and natural gas?
The way desertification is advancing in California (there must be other places facing the same problem) there will be a tipping point where mass scale desalination will be implemented.
Orrr... a tipping point where the human population becomes wholly unsustainable and starts to tear itself apart in "The Water Wars", as they'll be called.
https://calmatters.org/environment/2022/10/desalination-plants-california/
They are building them.
Thank you!
America actually does do desalination in several locations along the California coast and is expanding.
A good start.
Like everything in life, it's not that simple.
One thing that is simple, however, is googling the answer to this question before making an uninformed response.
There is a limit for how much water consumption can be reduced, how much water can be reused and how much preserved untouched.
It is actually a subject I actually find interesting. All the criticism put towards the technology could be as easily applied to the internal combustion engine: its inefficient, produces larges amounts of residues and is expensive to run.
There are several large scale operations already in place (Israel sources its water from the sea, as well as several other nations where drinking water is scarce) and even hotels use it to source water for swimming pools.
There is, of course, the problem of distribution but we've already invented pipelines, haven't we? And a water pipeline bursting could cause floods but no great concern lasting environmental damage, unlike oil or liquified natural gas.
so you agree with me? it's not simple. it's not just because "you don't want to". desalinization is extremely technically challenging.
This was an attempt at being sarcastic.
If we're running a technology by all means obsolete (internal combustion engine) and do it overlooking its drawbacks running current technology for dessalination can very well follow the same reasoning.
I read a good deal of criticism towards dessalination regarding the disposal of the brine. That is a fair point but those brines could very well be reprocessed for minerals harvesting including lithium, which has great demand. Even by just harvesting the salt, we'd be getting an important resource.
This is true and we already do it. Fresh water is distributed over huge distances using high pressure and volume. The infrastructure already exists.
I've lived where this happened once and it was not pretty. A low point of high density residencial area got flooded. Water reached somewhere around 80cm high. Damage to cars and ground stories, water distribution interrupted for 3 days. But no lasting damage.
And what do we do with all the salt?
Put it on fried potato
I'm going to be dense as I have no knowledge in this area, but can you just put it back in the ocean? I assume with sea levels rising the ocean is getting less salty so it wouldn't be harmful as long as we spread it out/did it slowly?
Yes, but how it's done is hard and expensive. If you just pump it into one spot you kill everything around with high salt concentrations. You can pump it far out to sea and disperse it over a large area, but that requires pipes going out to sea. The pipes would probably be made of metal, which salt water and metal don't mix well, not to mention the brine in the pipe. You also need pumping stations along the pipe because it can't perpetually slope down, and if it goes below sea level it needs to be pumped out.
Basically, it's complicated and expensive and not as easy as just dumping it into the ocean.
Reprocess it for minerals harvesting, like lithium, or just evaporate it and keep the salt, which by itself is a resource for chemical industry.
If it were that easy then it wouldn't be an issue.
I made that same observation some time back and the answer I got was: money.
Why spend the money to develop a technology to harvest a mineral from the sea with probably minimal to no impact to the environment when you can simply use already existing tech and just open a hole in the ground?
Desalination produces a massive pull on using more fossil fuels. It’s an emergency procedure. Not an end goal. Read a book.
Well, put me in a red dress and pony tails and call me Shirley..
Haven't we discovered other ways to harvest energy besides fossil fuels? Perhaps wind a solar might be an answer to that problem?
My own country is in the process of converting a former refinery into a green hydrogen plant and part of the conversion goes into installing a few gigawatts of power in solar and wind.
Couldn't this same solution be used for desalination?