How Seawater Desalination Works
HTML-код
- Опубликовано: 30 апр 2013
- CASE STUDY:
Desalination is a complicated process, the Seven Seas Corp.* approached DaVinci Studio to develop an animation that simplified the explanation of the process. Taking a cue from Seven Seas we started with squiggly style animation to give the technical looking components a non-technical look. Bottom line is to go from engineering-speak to the layman's level.
Desalination (also called "desalinization" and "desalting") is the process of removing dissolved salts from water, thus producing fresh water from seawater or brackish water. Desalting technologies can be used for many applications. The most prevalent use is to produce potable water from saline water for domestic or municipal purposes.
Desalination 101
IDA | International Desalination Association [www.idadesal.org]
*Seven Seas Water Corporation, a major player in the water treatment industry, with an expanded presence throughout the Bahamas, Curacao, Mexico, Sint Maarten, Turks and Caicos Islands, U.S.A. and the U.S. Virgin Islands.
[www.sevenseaswater.com] 
Наука
I spend my workdays operating a desalination plant.
The process explanation here is simplified, understandable and addresses most issues, though not in detail. That would take volumes of material and actually would require an extended commitment on the reader's part.
Yes, there are alternate ways to desalinate ocean water - but not all have reached a level wherein they are economically viable to use on a large scale. Just consider that each location is unique with its own set of advantages and challenges. Depending upon location - the bureaucrats, environmental agencies, scientists and developers have worked out a compromise that is as reasonable as possible.
Suffice to say - 'How Desalination Works' is Well Done. Thank you for this presentation.
What do you do with the leftover salt?
Simple wisdom is, evry solution is simple, only hard thing is the way to find it. If its complicated , something is not right, but this is step forward too...
@@-Subtle- They said in the video that it goes back into the ocean. In theory the salt content should remain the same since all the fresh water we use does eventually vaporize and return as rain.
@@hybridwafer not all of it returns to the ocean
but yeah the salt content stays the same and at most the salt concentration changes *slightly*
@@rory6860 wouldn't that create just destillized water with no nutrition at all?
im not sure why this was recommended to me, or why i watched it, but it was very educational and well explained
Same
Ditto
It was the most complicated explanation of osmosis that has ever been attempted on the Internet. It was completely turgid and incomprehensible
@Sandra Braithwaite I agree
God bless you man
to all the people saying "why so complex? use a still":
The energy required to evaporate water is enormous. to be able to filter water without evaporating it is an enormous efficiency boost.
Never the less, the air around us already contains a lot of water that is ready to be condensed
@@jorgechristophergarzasepul3209 that possibly works in areas where its very humid, but not all places next to saltwater are very humid, and making them less humid for a comparitively small amount of water (maybe a large bucket per cubic kilometer) probably isnt a good idea. Theres a reason water isnt listed as huge component in the air we breath, theres not that much.
@@jorgechristophergarzasepul3209 At 76 degrees and 50% humidity, a cubic yard of air holds .5 g of water vapor, so you'd have to process two cubic yards to get 1 ml. To get a liter of water, you'd have to process 2000 cubic yards of air. In most countries, each person uses about 3700 liters per day (that's per capita water consumption for all purposes, i.e., total water used in the country divided by the number of people), so to get one persons daily allotment of water, you'd have tp process 7.4 Million cubic yards of air. Condensing water from air in large quantities requires a huge amount of energy. You'd probably be better off using hydrolysis to create O2 and H2 out of seawater and then combusting it to turn it back into fresh water.
@Druhu Thanks for that explanation... I DID wonder why boiling off the water wasn't an option. You reason makes sense.
@@royalgilpin4922 yeah, perhaps reverse osmosis combined with boiling off the brine to just leave salt would keep that out of the ocean. That would likely undo some of the energy efficiency, but it may solve that problem.
Now I feel like drinking some arrows.
only blue ones tho
What! Lol thanks for the laugh...
🤣🤣
So this is how arrowhead water is made? 🤔
Plastic bottles deteriorate.
VERY informative. This should be shown in middle school science classes followed up by a field trip to a Desalination facility. This is what I would do as a science teacher.
Very well done. I'm a water treatment operator at an R/O plant that treats brackish groundwater. It is an energy intense process, but allows for non traditional sources to be utilized.
she told us what all the other filters had in them but not what the semi permeable membranes were made of, I can't seem to find the answer, would you happen to know what they are made of?
@@nicolebacon3230 they are made out of polypropylene and into the foil there are tiny holes made with an laser, so that only the water molecules can pass through them
Probably the best video you will find on the simplest but comprehensive presentation of how desalination plant works
Very informative and happy that this technology can be adopted on a wide scale to solve water scarcity problems worldwide.
The brine solution can be put out in open tanks , where the salt can be made and used for human consumption after processing, or for industrial use as it is. Thus reducing the cost further.
couldn't make that shit up, usine a charcuterie.
This feels like one of those really long anime monologues that explains in detail some crazy mythological technology
This is absolutely fantastic, no more scarse clean water and no more risk of wars about it.
And whether the high costs of it, it’s well worth it and it saves costs for an expensive war about it.
I did actually search for this. Interesting to see that apparently this was also recommended two months ago
Your the chosen one
I love how these videos make is sound so simple. Every simpleton sits there and goes "hey that's so great". Well it's not that cheap to do this.
yeah. distillation. just saying.
@@atticus2581 that still takes a massive amount of energy.
@@08tnt80 solar distillation. Consider the climate, it's got as shit, lots of sunshine, making a solar distiller is pretty cheap, and doesn't need filtration.
YEAh. but it is simple.
@Mr B you sound salty though, you need to improve your process
What a great presentation. Thank you.
Fascinating this is worlds beyond my my experience working with distillation plants some 60 years ago!
amazing, efficient, and effective way to make it happen. very smart
Jan. 9, 2020---Thanks for the video as I always wondered how it worked and what happened to the non water stuff. Only thing missing in this video is the cost? Would it be cheaper to make several smaller ones along a coast line in case one has to be shut down vs one big one? And what is the normal water output for these things and cost of piping needed to get it from the plant to where it's needed?
We should definitely invest in desalinization technology to make it more affordable and efficient. Perhaps we could find uses for the salt and other minerals found in seawater while we're at it.
I also have an idea for an air purification system on a massive scale. Build a large building specially dedicated to this purpose, it would have many vents on the outside for sucking in the air, then have numerous layers of filters such a large thick mass of cotton like material that would catch alot of the particulates in the air. Then suck the air through to a main cylinder which brings the air from the bottom way up a significant height, at the top of this cylinder would be a system of water spraying nozzles to make lots of mist which saturates the air and essentially comes down like artificial rain all through the cylinder (rain plays a large role in cleaning the air), this would have the effect of catching much of the remaining pollution in the air. The air is brought into a final chamber which is designed to catch the water and brings the clean air to outgoing vents at the top of the building. The water should be reused as many times as possible to cut usage and cost and eventually be added to the sewage system. I think such a facility would significantly drop pollution in large cities like Los Angeles and Beijing where pollution is a big problem.
I'm no engineer and I have no idea what such a filtration building would cost to build and operate, but I'd like someone build off this idea and make it feasible. I would certainly like to breathe cleaner air and I'm sure plenty of other people do as well. Just wanted to put that idea out there...
It's worth a try
The problem with this is the water mist slowly gains acidity, and becomes less and less effective over time. Filtering it through mixed ion exchange resin could help, but I argue it's easier to make cleaner fuels, instead of just cleaning the mess. It's easiest to just not make a mess instead of cleaning it up.
@@radioanon4535 The water would be replaced as time goes on, reuse it as much as you can but not forever. I'm all for clean energy, I simply wanted to propose a way to clean our air on a large scale. Many big cities have horrible air quality and would benefit greatly from some form of air filtration system. We have water treatment plants, why not something similar for the air?
Excellent introduction to the subject. Thank you.
amazing just amazinggggggggggggggg this big thing is an astonitioning summary of generations knowledges gathered togather
Thanks for sharing this.
This helped me understand desalination so much better thank you soo much!
Brilliant video that answered all of my questions!
Fascinating stuff. The future of water is now.
*Says someone who never took an engineering class* "Wow it so easy! Why aren't we building this?"
im pretty sure its not that hard for something that keeps you alive, its not like u can say hey its hard lets stop drinking water cause its easier
Isnt it a LOT cheaper and simpler to just distil water with, say, solar concentrated beams heating it?
@Willem DaFuckedUp distilation also cleans water of most contaminants. Except organic solvents such as alcohol or gasoline.
The first reason why we are not building this, Is because it costs a rich mans fortune to make make it. However, There might be a time and place where money be damned, We need fresh water now! So we might start building these water plants for survival sake.
This process is very costly and it requires higher maintenance cost time to time.
Nowadays, Desalination method is commonly used in gulf countries and nothern region of african continent nations.
Neglected to mention that it is a very expensive process. Yet, most global coastal communities (who can afford it) heavily rely on it and neglect to gather rainfall.
I have one for my house . Best water better then any bottled water in any store. Plus added minerals to as well.
@@johnlloyd1638 You have a desalination plant?
@Am Pa, yeah collecting rainfall in coastal area is a natural desalination process. No energy required for desalination, just collect and store. That's what people have been doing for millennia. But maybe desalination plants are more economical solution on a big scale since they can produce water 24/7/365 and without big reservoirs and rain collectors.
@@alterego157
Maybe you're right in that the governments figure why bother with rainwater collection if it never rains over half the year.
But I don't think it's more economical because the collection and processing is very low cost. But maybe governments don't care about costs because what's the competition? And it's easier, though not more cost effective, to just desalinate sea water instead.
@@alterego157 it's more in middle East because of very little to no rainfall and they have oil and money. So they can afford it
Nice work!
great Explanation, thank you!
Glad I live where it rains..
glad I live where we have the largest glacial system outside the the poles.
North China and the western United States have a severe water crisis.
வணக்கம்
@@StellarLists for now.
It's thought the next major world wide war will be over access to water. If so, you (and I) being in a high rainfall, high fresh water catchment will mean we're in the centre of a big battleground.
I was watching another video on this subject and they said it would be far easier and cheaper to use brackish water, which isn't nearly as salty as seawater.
It is really informative video for us.
Great information
awesomely explained. :) I liked the part where the kinetic energy of the solute is transferred to the salt water molecules and hence reduces the energy consumption.
me too
Another way, in a small scale life saving scenario is to cup two glass bottles together horizontally. Fill one with sea water and boil it. Ideally burring it in sand to retain more heat from the fire. The steam released is collected in the other bottle and condensation builds up to about 80% of the original bottle. So there is about a 20% loss but that could just be vapor. The water is 100% safe to drink. Great if you're stranded on an island.
Have you tried that brother? Interesting
Well done!
very nice done and educational
and question: can the salt be able to beable to get seprate during this process (like saltbeds but then worked in the system used in the video)
The lack of fresh water will be a major crisis in the future and in future space travel. RO and dehumidification will be the savior in the future. Very good expose.
youre insane
No, human overpopulation is the ultimate crisis for water scarcity. Nations around the world need to stabilize their production of offspring.
The water that was here now is the water that was here thousands of years ago. There will never be a water scarcity, the problem is overpopulation.
Very impressive specially the energy recovery machine. On the other hand I’ve been to few countries that use this process and they tell you to not drink the tab water.
Something's up with those countries because I've lived in places where desalinated water is consumed from tap. The water usually doesn't taste good, but if they do it correctly, it is safe.
@@ampa4989 To be honest I even fear taking shower in it as it is so hard and bad for the body. That is how it is in some of the gulf middle eastern countries that use cleaned ocean water. But I guess it could be different in other counties as you've stated.
@@jjenko6366
Hard water isn't actually bad for you. It, in fact, has health benefits because of the minerals. It just tastes bad. I've been to the UAE. The water tastes bad. It is safe for consumption.
@@ampa4989 It definitely is not safe for drinking. They got warning signs everywhere that state don't drink tap water. I know cause I used to work there unless they made major changes within the last two years. Same thing with Kuwait and Qatar from my experience.
@@jjenko6366
That maybe be true for SOME public taps. It's like in Cyprus and Malta. Some taps are not desalinated water because it is so expensive. But home taps are safe. Or they at least have two taps. One for drinking and the other for dishwashing, showering, etc. The second tap might not be treated like the first or it might be collected rain water.
Or maybe it's only partially desalinated/treated like some taps in certain Thai islands. Or it could be the pipes are not safe.
But true, desalinated water is completely potable.
Well explained
Great video
Osmosis occurs in your body too :)
When water passes through your body, your kidneys are salty, so the water gets absorbed, while blood passes through.
So thats why my kidneys hurt, they are salty!
@@danieldorn2927 Yeah, crying over being bad.
@@assetaden6662 Well, everyone who is salty is also kinda bad
That's why your kidneys use alot of energy. Brain being the other one. 2000 kcal per day, these organs take theost of of the 2000kcal.
Um, no.
BREAKING NEWS!
The crab that got sucked into the system at 00.27 has exited unharmed at 05.14.
NO marine life was harmed during this process.
YT algorithms are effin' UP!
@@TheFalseShepphard The cartoon crab, Possum.
Well explained, thank you
That'll be great if they made this simpler somehow, which I'm confident is very hard obviously, but the country needs this outhere as medicine is to people. And countries that need water really need to invest in this.
I think it can be made simple by simply boiling the water
And collecting the steam
The energy to drive the pump could be provided by a matching wave power stations, furthermore, the excess of electric energy produced could be used to boil the water instead of (r. osmosis) filter mechanism.
Would have already build it for local electricity if the site is available for that. Desalination is likely tied to the grid or by its own dedicated power plant.
There's a lot at videos showing how ocean wave energy can be used to pump the water to/from/at the plants. And the water can be used for geo/thermal
For one thing, LA should definitely be getting it's water from desalination. With properly developed nuclear power, this can be done economically and safely during off peak energy use, and the water can be pumped and stored in upstream lakes and reservoirs.
The effective materials for filter design could include limestone to neutralize biological matter and powder charcoal to neutralize chemical material and then the sand to filter debris
Good presentation
Water still. You not only get distilled water, but you also get sea salt that tasts great. And it can be done with the energy from direct sunlight,
شكرا على الترجمة للغه العربيه الفيديو مفيد جدا
This could be a good use of excess solar or wind energy on unusually sunny/windy days-filling the reservoirs with desalinated water.
Wow amazing
VERY INFORMATIVE
Look at that rich marine life growing on the brine outlet, it's basically improving our oceans
I sea what ya did there...
I had a nightmare where Satan sent me through this process.
😂
You salty dog 🐕
You're an idiot
you need help
😂😂🤣
شرح مبسط وجميل شكرا لك
A simple and beautiful explanation, thank you
looks like quite an expressive possess
It is an expensive process
Well, Cape Town is going to run out of water next month or so. Man miss-management on a grand scale. We are going through El Nino events and the politicians knew about this. ANC & DA etc. You cannot keep expanding and allowing growth without taking into consideration a finite water supply. Fix it when it is too late is no help now. Thanks for posting this and greetings from Africa.
David Wootton the thing is they are not even letting us know if they are trying or even talking about alternative way to supply water... cape town population increases every year with people coming from rural areas thinking they can find work here and students who study here and end up staying etc. Idk what the people in the dapartment of water and sanitation are doing in their cosy offices. Those small little dams won't supply cape town forever. So what now we wait till the dams fill again, switch the taps back on,population increases, people misuse consumption of water once again and we end up with another drought and Bob's your uncle
It seems that the crisis has been engineered (check into pipes being deliberately opened).
Don't say anything about the water Crisis unless you've done your own research. The amount of things that were wrong in your statement is enough to me that you have no idea what is actually going on. Please read some more valid sources before you comment again.
Especially you
Sadly when Africans take over mismanagement everywhere and I am an African
This is great it only takes a massive amount of energy to do this and the leftover brine is super toxic so when you dump it back into the ocean it destroys oxygen levels this is perfect its not like a solar furnace could be used and the leftover salt could be used in other areas
Why not evaporate the brine for the salt
@@kenneth9874 it would make a lot more sense they could even dump it on salt flats and let nature finish it up but all that takes extra money and too many people are greedy
The way she says device reminds me of Portal 2. Nice video.
I will show this to my class.
Reason why UAE, Saudi Arabia and other rich Eastern Countries uses this, is not only because they are far from any fresh water sources, but also because they have way than enough to spend on and maintaining these facilities, unlike lands in poverty, such as Ghana and other African-coastal countries.
OK at rt tire
The Random Dude XD yes but this could be run on renewable energy as well atm water in the golf (saudi) is at around 30 sr per sq m about 8 usd that number was raised from almost half that due to rises in the cost of gas so im assuming if we were able to cut energy cost the cost or clean water would drop as well
The Random Dude XD yes but this could be run on renewable energy as well atm water in the golf (saudi) is at around 30 sr per sq m about 8 usd that number was raised from almost half that due to rises in the cost of gas so im assuming if we were able to cut energy cost the cost or clean water would drop as well
not true al nations have enough money to set this up
Overpopulation is the mankind's biggest enemy.
I legit watched this whole thing even though I know how it works. This is a great video
I agree we definitely should be funding this
so cool
I live in Michigan, where 20 percent of the world's freshwater is in the great lakes. Ironic that a huge portion of our country has so little fresh water. CA, NV, NM, even parts of Colorado. We have huge stores of fresh water in Michigan.
Most of Michigans food taste better as a result of your Huge water supply because the tap water that restaurants use there is comparable to bottled water making the food you cook with it taste better than almost anywhere on the planet. I noticed when moved to Florida from Michigan that the quality of the taste of food is night and day.
Insane in the membrane
Motion n the ocean.
What is membarne
So what processes make this inefficient? finding an answer to doing this at scale has always interested me and I want to learn more
Cool
This process could have been a lot faster and easier with more than %95 yield, if, you started with a sea salt plant. In the method shown in this video they try to extract the potable water from the salt water. If, you extract the salt by evaporating the water, you obtain mineral rich salt crystals. All you have to do is to do this in a condensation chamber to collect the evaporated water, which you can filter even further easily and quickly to safe levels to drink. After this, you can use the obtained salt, in your diet, or sell it with a higher price than the rock salt, advertising that, it is rich in minerals. Or, you can pour it back to the ocean.
RO is a membrane process that act as a molecular filter to remove up to 95-99% of all dissolved minerals, 95-97% of most dissolved organics, and more than 98% of biological and colloidal matter from water
the way this is done is to pass the water over a membrane under pressure.Depending on the raw water quality a larger or a smaller part of the water goes through the membrane, leaving most of the dissolved solids behind. These solids and the leftover water(called reject or brine) are made to leve the membrane surface area and is piped to drain.The water which goes through the membrane and gets purified is called the permeate water.
,
Chennai people these kind of plants. Plants should run solar power on sunny days.
Hi is there a place where you can buy the membrane?
@@alesgardener1659 They are very expensive. Around $800 a piece. And you would need the vessel, pumps and media filter.
this is good to genius - a few of my inputs
how about a salt making plant on site to reduce the salt return to ocean
and maybe a natural reservoir instead of chemical balancing - further natural stabilisation and maybe a further heat cycle should provide clean water ?
all in all totally impressive : from sea to river / stream : dream building in the making
did you know the ocean is mainly stagnant ? there are no jet pumps or air bubbles at sea .
kudos to the manufacturer and team
good video
0:32
Why didn’t anybody colour in my claws?
I love this comment
That's you?
That's the famous white clawed crab
could use the brine or salt for highenergy tech chips
Or for non water plentiful areas, pump in seawater to special reservoirs (at ground level) then focus the sun (using fresnel or other magnifier/focusers ) onto the water to evaporate it at higher speed, then have a USDUS* inside a giant cylinder (with a shade covering ) to cause the water to condense (using super hydrophobic surface) ; the evaporated water might be best to go upwards "Diagonally" to keep the condenser cylinder tower (huge) of the way of the super hot solar evaporator reservoir ; so we should get lots of water evaporating going diagonally form a very humid "cloud" of sorts in the shaded condenser tower, where would then condense on the relatively cooler USDUS to again get drained to holding tanks; worth a try. Free solar, almost free seawater pumped in, thankfully most potable water shortage areas are in sunny solar places, making this a possibility at least IMHO. IF the humidity is high (ie like 100%) the Dewpoint is the same as the ambient air temp so just shading the USDUS condenser should work fine to condense the water at a good enough rate (research), especially if the USDUS has a super hydrophobic surface which has been shown to increase significantly condensation; the condensation could be increased further by cooling the USDUS more, such as on the top side use non-potable water "Misted" to cool the whole condenser and USDUS by simple evaporative "almost Free" cooling (but this is on the top side not mixed with condensate on bottom side) . So seawater is pumped in across flat desert to ground level reservoir where is solar heated to evaporate faster, then thru Diagonal "Duct" to Condenser tower with USDUS inside collecting condensate to holding tanks with added cooling on the top of the Shaded Condenser Tower by "Misting" non-potable (ie seawater) to the the evaporation cooling effect to make the Dewpoint even lower which should increase rate of condensation on the bottom of the USDUS. Other non-potable water "might" be appropriate if the sea or lakes are too far to pump cheaply to the ground level evaporator reservoir.
* upside down umbrella shape (USDUS)
The marvels of engineering and science. This is fantastic.
I prefer vapor desalination especially when you consider how high you can lift the water without additional energy input.
Anyone who has served in the modern Navy, knows all about this.
REBELutionary1 I am going to join the navy to learn about this
Large ships don't do this, it costs too much in energy. They do it using evaporative means with the excess heat from the engines/reactors.
@@marcoselgringo229
Also older conventional 600/1200 psi steam ships used flash distilling plants.
Home reverse osmosis got a pressure tank that is used to flush out clogging of the reverse osmosis filters. You can hear the water gushing out towards drain. In commercial reverse osmosis plant, what percent of the clean water is used to flush out the reverse osmosis side?
By implementing this process sea salt can be also extracted?
aaubrey Wallace Yes, but it would only be an assist to normal evaporation process.
I was involved in developing these types of systems for agri-businesses and oil and gas projects.
Very simple and easy to understand tutorial.
However the caveat [and there is always a down side to nearly every human endeavor] is that the R.O. brine outfall has become a potential problem for the Arab States like Saudi Arabia and UAE among others.
The brine concentration has become a problem ,even in the vast oceans near these water purification plants, due to massive water conversion process that has affected the aquatic flora and fauna [plants and animals] to a degree not anticipated when first proposed.
But oh well..life sucks then you die.
Out out brief candle
@@redfox435cat Complete nonsense argument if you have awareness of how water is managed. There is no shortage, there is greed and negligence.
@Dan Beech could it not just be refined into sea salt via evaporation and sold as in other coastal areas
Can't the heavily concentrated brine be used in industrial or sanitation applications?
Even more complicated because of the lack of narrative elaboration.
Takes enormous amounts of energy to make this happen.
Not really, no. Not nearly as much as you were probably told
Thank you..
In my suggested videos. Not only do I see this as a solution for towns and cities suffering from lack of fresh water, but I can see this also battling rising ocean water from melting ice caps. Also bringing more salinity to the ocean as the melting fresh water ice threatens to desalinize the ocean water slowing down the conveyor belt.
5:01 sudden change in quality
When you only have 5 mins left until time's up and pens down
Nice
Neat!
I used to think we distilled seawater. huh, the more you know.
It depends on what system the area uses
This is just one of dozen ways it can be done.
Damn. You lost me at 3:07 and I love desalination idea... :O
Lol, me too! And I know how this works as well... 🤣
Yes!! Me too!
Y'all is....STOOOOOOPID!
Devon Wayne it’s a DUMB idea why don’t you come up with an idea to clean what we already have🤨
More desalination plants and less oil drilling platforms please.
Salt is used to remove the minerals that cause water to be "hard", the iron and sulpher in my area make well-water very difficult to wash things in. This could be a much less energy-intensive desalinization method.
Why send the salt brine back out to the ocean? It could poured out into settling pools and allowed to evaporate into Sea Salt, which could then be sold for additional revenue to help cover operating costs of the plant. Maybe not for human consumption, but road salt or other industrial applications?
But I'm no expert. I'm sure there's a reason.
The sea salt is ridiculously cheap. The insignificant amount of sale can add no considerable amount to revenue.
@@shamanjitsingh7267 And yet there are numerous companies around the world who's sole source of revenue is salt. Making it has very little overhead. Cheap as salt is, it's even cheaper to produce, so there is still a profit margin. It may not be the cash cow oil or electricity is, but it's revenue that's getting pumped right back out into the estuaries, killing marine life.
@@facepalmdaily4404 If it was so easy, the world water crises would have been solved by now.
@@shamanjitsingh7267 If it were so easy to make salt the water crisis would be over? LOL. What?
Never said desalination was easy. I said making the salt out of that leftover brine was super easy, with very little overhead. Try to keep up.
@@facepalmdaily4404 the process/cost of selling would be a negative output.
The problem is that it is a very costly process. Water with remarkable salts concentration like the sea water scales RO membranes like nobody`s business
May be... but We can find alternate solution.
Interesting. How much energy does it take to run the two pumps at 1000 psi?
This made me really thirsty for some delicious fresh water. Thank you
No salinity differential can be detected within a few meters of the outflow.... I am dubious. This cant be the case when it is scaled up.
It's bullshit. It's the biggest problem that's all the salt water purification plant all made. Look it up, the salt concentration level was so high that the many local sea once full of life had become death sea
cant they just make salt ?
@@lustxglory because they are not just salt , other impurity are also in there : micro plastic , virus , wasted shit . You wound't want to use it knowing that
@@lesangpro If what you mention is correct, how do 'salines' - salt collecting operations - avoid having these undesirables in their produce - ie, should 'sea salt' come with a health warning? (Or is it the case that the 'extra' flavour comes from impurities in the same way that what makes whisky different from vodka is the presence of chemicals which, broadly, are bad for you?)
@@RobertSeviour1
I think it must be that the removal of certain elements concentrates the flavor of the remaining elements. Maybe little bits of mineral is necessary to produce authentic "sea salt."
You forgot the large amount of energy required to power these desal plants. Most of the ones I know use fossil fuels. If they can be powered by renewable, they are great.
Check out the ones in Australia. Using 100% renewable energy and supplying millions of people fresh water.
We can use solar panels ???!!
prabhu s wind and wave powered
@@prabhusingam1
It's possible to even use power from inflowing and outflowing tides to help run these plants.
@@alexanderjuvarn6012 The ones i have built were in Australia. They were all connected to the grid which is primarily fuelled by coal power stations.