this post was submitted on 04 Dec 2023
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Some of the water is evaporated so it doesn't leave as a liquid.
That's unlikely in a closed heat exchange system. Maybe some additional evaporation because the water is slightly warmer. But unless I'm missing something, it seems very misleading to suggest that a Bitcoin transaction uses 16 kilolitres because of evaporation. Napkin math, it would require about 10 megawatt/hours of energy to evaporate that much water (please correct me if I'm wrong). I'm not a Bitcoin fanboy, I just don't like BS.
Some water is used in humidifiers, there are also systems that use direct evaporative cooling where the water is eveporated to cool the hot air. There are probably other ways the water is lost.
https://dgtlinfra.com/data-center-water-usage/
Even if so, does evaporating cause it to exit the water cycle?
It goes outside and eventually becomes rain.
someone from a totally different thread mentioned that the water can't stay in the system because of whatever mineral stuff from the cooling pipe/anti-algae/anti-corrosive has to leave the system after certain cycles. So unless you have a treatment plant down stream it's not exactly "drinkable" freshwater. (and I doubt water regulation would allow that to happen.)
The consume here means that water is not usable for other application. How? I don't know, maybe it can be used for power wash?
It probably is still a lot easier to make potable than sewer water or even river water though. At lease you know exactly what contamination is in it.
It can't just be dumped into a river, has to go to a sewer treatment plant.
edit: They do recirculate it, but it eventually needs to be replaced. And some facilities have treatment plants on site, so doesn't necessarily needed to go to a sewer treatment plant.
I agree, it would eventually have it's own ecosystem around that water usage if "fresh" water or not really drinking water related use is required. At this point I think it's just cost related, cheaper just to dump into ocean.