Reverse osmosis equipment and membrane technology
反渗透设备及膜技术



反渗透(Reverse Osmosis，简称RO)是以压力差为推动力的一种高新膜分离技术，具有一次分离度高、无相变、简单高效的特点。反渗透膜“孔径”已小至纳米。在高于原水渗透压的操作压力下，水分子可反渗透通过RO半透膜，产出纯水，而原水中的大量无机离子、有机物、胶体、微生物、溶解性盐及分子量大于100的有机物，热原等被RO膜截留。但允许水分子透过，反渗透复合膜脱盐率一般大于98%。
Reverse osmosis (RO) is a high-tech membrane separation technology driven by pressure difference, which has the characteristics of high primary separation, no phase change, simple and efficient. The "pore diameter" of reverse osmosis membrane is as small as nanometer. Under the operating pressure higher than the osmotic pressure of raw water, water molecules can reverse osmosis through ro semi permeable membrane to produce pure water, while a large number of inorganic ions, organics, colloids, microorganisms, soluble salts and organics with molecular weight greater than 100 in raw water, pyrogen, etc. are retained by RO membrane. However, when water molecules are allowed to penetrate, the desalination rate of RO composite membrane is generally greater than 98%.