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No, the point I'm making is that most of what sewage treatment plants do is deal with organics— soapy water, human waste, probably a bunch of clothing fibers, w
by mikepurvis 6y ago
No, the point I'm making is that most of what sewage treatment plants do is deal with organics— soapy water, human waste, probably a bunch of clothing fibers, whatever.
Without knowing much about waste treatment processes, I could imagine that it would be relatively easier to extract and isolate heavy metals in a state where they're otherwise just in water, vs once they're extremely diffuse and mixed in with all the rest of it.
- thaumasiotes 6y ago> I could imagine that it would be relatively easier to extract and isolate heavy metals in a state where they're otherwise just in water, vs once they're extremely diffuse This is definitely true; the more concentrated something is, the more of it you can extract. But there are significant logistical differences between having 100,000 filters in 100,000 households doing their filtering at the point of emission, and having one filter in a treatment plant which all the water is guaranteed to pass through. What happens if 20% of the individual filters break?