膜的种类（Types of membranes）.docVIP

膜的种类（Types of membranes） Classification of membrane processes The type of membrane; the separation of membrane functions; the driving force through which matter is intercepted Microfiltration of porous membranes, microfiltration of solutions, removal of micro particles, pressure difference, water, solvents and solutes, suspensions, bacteria, particulates, macromolecules, organic matter Ultrafiltration eliminates colloids in the solution, various macromolecular pressure differences, solvents, ions and small molecules, proteins, enzymes, bacteria, viruses, colloids, and particles reverse osmosis And nanofiltration to remove the salts in solution and the pressure difference of low molecular substances, water and solvent, inorganic salts, sugars, amino acids, organic compounds and so on Dialysis to remove the salts in solution and low molecular mass concentration, ions, low molecular substances, acids, bases, inorganic salts, sugars, amino acids, organic compounds and so on Ionic potential difference, ion, inorganic and organic ion in electrodialysis solution The separation of pressure difference, concentration difference, vapor liquid, inorganic salt and ethanol solution between low molecule and solvent in pervaporation solution Gas separation gas, gas and steam separation, poor concentration, easy to penetrate the gas, not easy to pass through the liquid Ultrafiltration Brief introduction: More than filtration, commonly known as ultrafiltration, also known as UF, is a solid-liquid separation technology. It is the core of a membrane, commonly known as ultrafiltration membrane. Ultrafiltration membrane is a kind of macromolecule polymer with a molecular weight range of 5000~200000 and a pore range of 0.02 ~ 0.03 M. The ultrafiltration membrane can separate the characteristics of solid and liquid to remove solid particles in the liquid, and can also extract certain components in the liquid by using the membrane of certain pores. Application of UF in water treatment The r