Reverse osmosis technology is currently the most advanced and energy-efficient separation technology. The principle is to separate solutes and solvents in a solution under pressure higher than the osmotic pressure of the solution, using the selective retention effect of a semi permeable membrane that only allows water to pass through and does not allow other substances to pass through. By utilizing the separation characteristics of reverse osmosis membranes, impurities such as dissolved salts, colloids, organic matter, bacteria, and microorganisms in water can be effectively removed. It has the advantages of low energy consumption, no pollution, advanced technology, and easy operation and maintenance.