I believe this is what Israel does in the Mediterranean with apparently no ill effects: https://www.sciencedirect.com/science/article/abs/pii/S0043135419311765

I believe this is what Israel does in the Mediterranean with apparently no ill effects: https://www.sciencedirect.com/science/article/abs/pii/S0043135419311765 https://www.sciencedirect.com/science/article/abs/pii/S00431... Given the greater currents in the Pacific and Indian oceans I’m sure this could be managed well by dumping out to sea, although I’m sure many plants just pump out near the local beach.