Several issues in the use of sterilised filters

Processsterilization process sterilizing system can be simply divided into two parts purification and sterilization process, pre-purification treatment for sterilization services, it is an object to be processed is out of a variety of solids in the fluid, For example: water, oil, dust, in the three-dimensional colloid, suspended particles in the gassmall taping us look at a few questions sterilizing filter in use today:(1 intensity level depends on the operating pressure of the membrane pressure filter element structure, the filter material used, the geometry, temperature and other factors of the filter media, pressure upper limit is generally 0.2-0.3Mpaas extreme pressure "is 0.5Mpa filter used, starting pressure difference should be about 0.02Mpa, so cake layer was filtered sparse, the filtration process, the pressure drop rises more slowly, the life conduciveextended cartridge (2 temperature depends on the temperature generally used filter membrane material i.eof membrane and heat resistance aggressive filter medium, CN-CA membrane long-term use temperature of 50 degrees, 60 degrees for the 6-nylon film, PVDF film is a 80 degree(3 filter material solvent selection for a single, relatively speaking, it is convenient to select the filter material, the solvent will have a multicomponent careful in selecting the film material and filter can be selected by the crude method of solubility parameter, and then authenticated by experiment(4 disinfection sterilizing filter is a problem daily operation step, the common cancellation filter Methods are steam, hot water, and three kinds of chemical sterilization steam sterilization is saturated steam attention to the selection, one can reliably kill bacteria, two temperature is adjusted by controlling the pressure, steam sterilization for hydrophobic frit is relatively simple but especially hydrophilic filter membrane material can not high Q filter, the method of operation is essential