literature.cafe

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MIT Passive Desalination system could produce freshwater that is cheaper than tap water, scales down to the size of a suitcase. (news.mit.edu)
submitted 9 months ago* (last edited 9 months ago) by ProdigalFrog@slrpnk.net to c/technology@slrpnk.net
42 comments fedilink
 
 

According to MIT, this technology works even at small scale, with one the size of a suitcase able to desalinate 6 litres per hour, and only needing to be serviced every few years.

Here's a video detailing how it works.

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Engineers at MIT and in China develop desalination system which could produce freshwater that is cheaper than tap water (news.mit.edu)
 
 

cross-posted from: https://lemmy.ml/post/10286254

It looks like the paper is paywalled and not yet on scihub but i did find 38 pages of supplemental information with more details than the article.

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Engineers at MIT and in China develop desalination system which could produce freshwater that is cheaper than tap water (news.mit.edu)
 
 

It looks like the paper is paywalled and not yet on scihub but i did find 38 pages of supplemental information with more details than the article.

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Desalination system could produce freshwater that is cheaper than tap water (news.mit.edu)
 
 

r/EverythingScience

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Desalination system could produce freshwater that is cheaper than tap water (news.mit.edu)
 
 

MIT engineers and collaborators developed a solar-powered device that avoids salt-clogging issues of other designs.

More details in their paper here

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Desalination System Could Produce Freshwater that is Cheaper than Tap Water (news.mit.edu)
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Desalination system could produce freshwater that is cheaper than tap water (news.mit.edu)
 
 

Desalination system could produce freshwater that is cheaper than tap water::A new solar desalination system takes in saltwater and heats it with natural sunlight. The system flushes out accumulated salt, so replacement parts aren’t needed often, meaning the system could potentially produce drinking water that is cheaper than tap water.

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Desalination system could produce freshwater that is cheaper than tap water (news.mit.edu)
 
 

The configuration of the device allows water to circulate in swirling eddies, in a manner similar to the much larger “thermohaline” circulation of the ocean. This circulation, combined with the sun’s heat, drives water to evaporate, leaving salt behind. The resulting water vapor can then be condensed and collected as pure, drinkable water. In the meantime, the leftover salt continues to circulate through and out of the device, rather than accumulating and clogging the system.

The new system has a higher water-production rate and a higher salt-rejection rate than all other passive solar desalination concepts currently being tested.

The researchers estimate that if the system is scaled up to the size of a small suitcase, it could produce about 4 to 6 liters of drinking water per hour and last several years before requiring replacement parts. At this scale and performance, the system could produce drinking water at a rate and price that is cheaper than tap water.

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Desalination system could produce freshwater that is cheaper than tap water (news.mit.edu)
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Desalination system could produce freshwater that is cheaper than tap water (news.mit.edu)
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Desalination system could produce freshwater that is cheaper than tap water (news.mit.edu)
 
 

Engineers at MIT and in China are aiming to turn seawater into drinking water with a completely passive device that is inspired by the ocean, and powered by the sun.

In a paper appearing today in the journal Joule, the team outlines the design for a new solar desalination system that takes in saltwater and heats it with natural sunlight.

The researchers estimate that if the system is scaled up to the size of a small suitcase, it could produce about 4 to 6 liters of drinking water per hour and last several years before requiring replacement parts. At this scale and performance, the system could produce drinking water at a rate and price that is cheaper than tap water.

https://www.cell.com/joule/fulltext/S2542-4351(23)00360-4

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Desalination system could produce freshwater that is cheaper than tap water (news.mit.edu)
 
 

HN Discussion

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Desalination system could produce freshwater that is cheaper than tap water (news.mit.edu)
 
 

There is a discussion on Hacker News, but feel free to comment here as well.

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