What is reverse osmosis?

Reverse osmosis is a water purification process that employs a semipermeable membrane to separate contaminants from water. In this process, water is forced through the membrane, which allows only water molecules to pass while blocking larger molecules and impurities, such as salts, minerals, and other dissolved substances. The effectiveness of reverse osmosis is attributed to the fine structure of the membrane, which provides selective permeability, thereby ensuring high-quality water purification.

This is why the choice regarding the use of a semipermeable membrane accurately describes reverse osmosis. The process is widely used in various applications, including drinking water purification, wastewater treatment, and desalination, showcasing its ability to produce clean, purified water by efficiently removing a broad spectrum of contaminants.