cross-posted from: https://lemmy.zip/post/59925291
The system can function in air with 20% humidity or less. But these 1,000 liter a day machines are not small, at around shipping container size.
Here’s a back-up, science paper on MOF from Nature with measured numbers. 8 liters per KG per day isn’t 1000 gallons until you get to 2 tons … but it’s about 200 liters per out of 25 KG … easily carried.
https://www.nature.com/articles/s41598-020-58405-9
"The effects of temperature, relative humidity, and powder bed thickness on the adsorption-desorption process are explored for achieving optimal operational parameters. We found that Zr-MOF-808 can produce up to 8.66 LH2O kg−1MOF day−1, an extraordinary finding that outperforms any previously reported values for MOF-based systems… "
Oh no, the same scam again, when will people realize that putting dehumidifiers in the desert, where there is little to none humidity in the air does not produce significant quantities of water.
You can claim that your solution produces thousands of liters of water, but in practice its obvious that you cannot extract more water than what’s already im the air, once you extract it, there is nothing left, it may work at first, but is not going to work continuously forever.
This is another example of a promised technology scam, pay me for the development and once it doesn’t work, disappear with the money. People keep falling for it for some reason.
There have been so many of these devices promoted in Kickstarter, dragons den, etc.
I’m highly sceptical, as so far scientists have told me there simply isn’t that much moist in the desert air to get even one liter of clean water per day. You simply cannot create water out of nothing.
This has been debunked before. To get 1000liter of water out of the air, the air needs to hold that much water.
This is a bit more serious than the old, frequently-debunked “dehumidifier in the desert” stuff, because it doesn’t depend on cooling the air to get the water out, but using a molecular sponge. If you pump enough air over that, you’ll eventually fill it up, and you can drive the water out by heating it up.
The guy behind this is a serious organic chemist, and his Nobel prize was actually for pioneering and developing these molecules, so it’s not a case of “Nobel prize winner does daft stuff about a subject he’s not an expert in”, either.
I’m still reserving judgement on whether this will be economically sensible, but I’m not dismissing it immediately, either.
deleted by creator
Finally, I can achieve my dreams of becoming a moisture farmer.
Hope you enjoy a whiny nephew
I swear to god if that kid brings up the academy one more time, just kill me
But crying about not getting to go to Tashii station is okay?
power converters over there are pretty mediocre anyway
Shut the FUCK up we have a shed literally full of power converters, your friends are absolute trash anyway and come on what kind of name even is “Biggs Darklighter” it sounds like his parents were from a Flash Gordon ripoff
Not the power converters we were looking for. https://www.youtube.com/watch?v=rpUkokRx3-k
What
In Star Wars, Luke Skywalker was raised by Anakin’s step brother, Owen Lars, who was a moisture farmer on Tatooine. That made him Luke’s step uncle. We’re all referencing Star Wars quotes.
You know the kid with the unhealthy obsession with womp rats
Little psychopath just bull’s-eyeing 'em all day long in his T-16
Peaceful living as a smoldering skeleton
Where’s my blue milk?
Tosche station
Yet again, nobody seems to be giving a thought what this means to organisms that are living in the desert. This water is necessary for life and we’re taking it.
If you plan on drinking the water, or cooking with the water, it’s going right back into the air after you pee or sweat and the water evaporates. Literally no damage done.
You cannot make the water actually disappear unless you use it in some kind of chemical reaction, and even then it may end up returning to water eventually.
I would think that ripping 1000L of water out of an environment in a day is going to have more immediate impacts than you eventually pissing on a cactus is going to fix…
Sure, the water isn’t “destroyed”, but it is being removed from an ecosystem that has evolved to use every last bit of water it can find to survive. It may not be immediately obvious, but it sounds just as damaging as removing 1000L of water a day from a lake and thinking the ecosystem will be fine because you’re going to sweat next to the dry lakebed.
…Science?
A WITCH! A WITCH!
BURN THE WITCH!
You can’t really consume water especially if you take it out of the air. Worst case you temporarily barrow it till it evaporates again it’s not like the water is suddenly gonna be pumped out to the ocean or something.
Do you think they are condensing 1000L of water to then just splash it on the ground where it was farmed? That water is going to people (or more likely companies) that are going to leave the ecosystem.
Yes, they are going to fly away in a penis shaped rocket with all the water on board.
As someone who has thought about it, could you provide the data that you used to come to the conclusion that the amount of water being extracted from the air has any appreciable effect on local life?
From my thinking…
Death Valley covers 7800km^2.. Atmospheric moisture is typically contained in the first 10km of air. So there is somewhere around 2.5 quadrillion cubic feet of air containing 114 billion gallons of water.
The average Atmospheric Water Vapour Residence Time is around 8 days The median is 5 days and Death Valley’s topography is a valley which would trap more moisture, but we’ll use the average instead.
This represents a moisture turnover rate of about 625,000 Liters/second (or 1.45x10^10 gallons/day).
So, one of these devices would consume .000185% of the moisture that enters Death Valley every day.
https://scitechdaily.com/america-is-sinking-28-major-cities-are-slowly-going-under/
Given enough people and time, we have a track record of messing stuff up.
ground water is a completely different beast. This device harvests moisture from the air.
You are assuming that there will only be one device used by a careful and considerate individual.
I can think of many companies that would 100000% set up a moisture farming complex if it was financially feasible. Who gives a fuck about the environment? It’s basically free water from nothing, right?
Well the damage is done and now we need that water.
Lisan al-Gaib!
We need to harness Desert Power!
Came here to say this but knew in my heart that it had already been brought in.
That water was in its way to somewhere, though. What is that other area gonna look like now that this device intercepts the water?
same could be said about every shower you take and every toilet you flush
And every bond you break, every step you take
I’ll be watching you!!
Dooooom
Someone is going to drink it then sweat it back into the air. I doubt its going to get bottled and shipped somewhere else.
mmm desert water
Sounds like that other area needs to pull up on those bootstraps and make a water machine for its needs then.
This comment is brought to you by the sigma water machine, buy yours today and lock your grindset on hydration!
(Hopefully obvious but /s)
Are you on the Temu or the Amazon so that I can get some good boot straps and choke myself to ejaculation?
Eventually all that dry air will end up above the ocean and absorb more water to balance the system. I don’t think it’s really an issue, we weren’t getting rain clouds from the Sahara anyway.
Atoco harnesses the power of AI to bridge the gap between scientific discovery and real-world implementation, transforming innovative research into scalable solutions. By integrating machine learning and AI with reticular chemistry, we dramatically reduce the time needed to develop, optimize and scale our novel nano-engineered reticular materials for carbon capture and atmospheric water harvesting.
Bruh.
This is likely not the Generative AI, LLM-slop type of AI you’re thinking of.
I hate generative AI. But other forms of AI and machine learning have been used for much longer and haven’t facilitated the building of ecologically harmful datacenters.
For example, AlphaFold, which is an AI program that can predict how proteins fold and is an incredibly useful tool.
I expect that the use of AI here would be similar: something trained for a specific purpose, not just generic generative AI tech like ChatGPT
Reading that felt like my brain was trying to chew glue
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
That’s what it said.
I was researching ai before llms for a gen ed class, this isn’t the sensationalized type of ai, ai in medicine and sht is pretty cool. Hospitality ai is getting too good too fast tho. Robot hotels and restaurants would not be suprising.
https://hms.harvard.edu/news/new-ai-tool-pinpoints-genes-drug-combos-restore-health-diseased-cells
shipping container size
That’s far smaller than I expected. I also don’t imagine it will be cheap. If they manage to make it less than $100,000 then I’ll be baffled. Less than $500,000 and I’ll be excited for the possibilities in my lifetime.
$500,001
“booooring”
I mean, a little. It’s far easier to sell someone on less than half a million than on more than half a million.
Yaghi’s mechanism can do this without a power source. It uses the wind and air for water input, then the sun to drive condensation and evaporative action.
Really interesting. This could totally transform many places on Earth.
sorry but isn’t that just a good dehumidifier? Is there something new?
This guy got his Nobel prize for molecular sponges that can bind and release water.
And how much power does it use?
This thing works self-contained and off grid - using materials that have huge surfaces to condense the water. It is mentioned that there are powered versions too, but the principle itself does not need extra power, the Sun drives the condensation.
Sun: no more free power for you click
Every living thing as eternal darkness consumes us: AAAAAAAHHHHHHHHHHHH
Cool!
That’s still embodied energy, so the question becomes; “How much energy does it take to actually make these materials?”
In particular, the device is packed with Metal-Organic Frameworks (MOFs), which are synthetic porous materials engineered at the molecular level to have huge surface areas. A few grams of an MOF can have a surface area equivalent to a football arena, according to the source.
That sounds pretty energy-intensive to me.
When I looked at condensers in the past, they weren’t incredibly energy-efficient. I suspect that it’s cheaper in the long run to do desalination and build a pipeline to wherever inland you want freshwater, unless you have very limited-in-scale need.
This (seemingly) solves some issues in places like Africa where warlords block or destroy delivery systems to remote villages. Also fixes disaster recovery where pipes are destroyed or water systems are contaminated
