The water filtration method that requires the use of a membrane is reverse osmosis. This process involves passing water through a semi-permeable membrane that removes impurities, contaminants, and larger particles from the water.
The other methods mentioned have different mechanisms:
- Distillation involves boiling water and then condensing the vapor to remove contaminants.
- Ultraviolet (UV) radiation uses UV light to disinfect water by killing or inactivating microorganisms.
- Chlorination involves adding chlorine to water to disinfect it, but it does not use a membrane.