What is the primary function of reverse osmosis?

The primary function of reverse osmosis is to remove dissolved ions from water. This process involves the use of a semi-permeable membrane that allows water molecules to pass through while blocking a significant portion of dissolved solids, contaminants, and even some larger molecules. As pressure is applied to the water, it forces it through the membrane, effectively separating pure water from unwanted dissolved substances, including salts, heavy metals, and other impurities.

This method is widely used in various applications such as desalination, water purification for drinking water, and industrial processes where water quality is crucial. The effectiveness of reverse osmosis in reducing the concentration of dissolved ions makes it a critical technology for obtaining clean and safe water, contributing to public health and environmental sustainability. In contrast, the other options don't align with the fundamental purpose of reverse osmosis. Adding minerals or altering flavor are not inherent functions of this technology and managing water temperature is unrelated to the purification process.