It’s because you seem like not wanting to understand.
They simply take water out of the public water system and it then either evaporates or goes into the waste system like in every normal household.
Of course it COULD be used to heat houses or fed back into the system but that’s not what’s happening simply because it would be too complicated.
It’s a bit like saying you are not wasting water when letting your tap running without doing anything because it would still be clean and could be used again.
It’s because you seem like not wanting to understand.
They simply take water out of the public water system and it then either evaporates or goes into the waste system like in every normal household.
Of course it COULD be used to heat houses or fed back into the system but that’s not what’s happening simply because it would be too complicated.
It’s a bit like saying you are not wasting water when letting your tap running without doing anything because it would still be clean and could be used again.