In many regions of the planet experiencing a serious water shortage, the technology of desalination of seawater by removing "excess" salts is widely used.
One of these technologies is reverse osmosis, in the process of which only fresh water passes through the membrane, and the salt goes to "working off", forming a saturated solution, the concentration of salts in which is twice as high as in the sea.
In most desalination plants, waste water is discharged back into the ocean, which leads to salinization of adjacent coastal areas, and as a result, the death of marine animals and plants that live here.
To avoid undesirable consequences for the flora and fauna of the oceans, scientists have proposed diluting salt-laden waste with fresh water that is not suitable for drinking. It is clear that desalination technologies need to be improved - and in today's world, where about 4 billion people have problems with access to clean water, we cannot afford to delay solving this problem.