反滲透設備及膜技術(shù)
反滲透(Reverse Osmosis，簡稱RO)是以壓力差為推動力的一種高新膜分離技術(shù)，具有一次分離度高、無相變、簡單高效的特點。反滲透膜“孔徑”已小至納米。在高于原水滲透壓的操作壓力下，水分子可反滲透通過RO半透膜，產(chǎn)出純水，而原水中的大量無機離子、有機物、膠體、微生物、溶解性鹽及分子量大于100的有機物，熱原等被RO膜截留。但允許水分子透過，反滲透復合膜脫鹽率一般大于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%.
