We often take clean drinking water for granted. We push a button and clear liquid fills our glass. This simple act hides a complex scientific battle. At the present time, millions of households use high-tech RO purifiers/filters. These devices use specific principles to remove contaminants. That principle is called Reverse Osmosis. We must look closer at the machines in our kitchens. They represent a win of engineering over natural equilibrium. https://entechonline.com/reverse-osmosis-how-ro-purifiers-work/
Khan Juveriya (Sat,) studied this question.