In reality, the ocean is huge. So all that salt/garbage/whatever is increadibly uneavenly distributed and will naturally collect in certain areas. In the case of extra salt it could easily have an adverse effect on local ecosystems.
Another user, commented that it should be okay to dispose, by releasing it over fast moving currents in deep waters. That makes sense to me. The water we're using will mostly come back to the oceans and we'll have eventual consistency of the water/salt balance (in that process at least). Not sure if I got it right, though.
Either way, I feel that disposal of brine will be a problem if done recklessly, like for example in coastal areas and only on ideal conditions by chance - which is how we dumped most things in the 20th century.
My belief is that we should think about regulation, if we want desalinized water in a industrial scale.
Also salt dissolves in water which is why desalination is needed in the first place. Really think for a moment about what are saying must be true.
The point is not that plastic dissolves I’m water, it’s that the saline concentration won’t be spread evenly throughout the entire expansive ocean without first increasing it locally.
> Really think for a moment about what are saying must be true.
Indeed.