① chemical stability. Cellulose acetate membrane will inevitably occur hydrolysis, cellulose acetate membrane continuous operation allows the pH value of the range of 4 to 6, cleaning is allowed to range from 3 to 7 pH, pH 5.7, the slowest hydrolysis rate, which The pH value range of the continuous operation of the composite membrane […]

(1) the permeability of water should be large, high desalination rate. (2) has a certain degree of strength and firmness, not due to water pressure and tension affect the deformation and fracture. The membrane is compacted as little as possible, water flux attenuation is small, to ensure a stable water production. (3) structure should be […]

Reverse osmosis membrane is a special material and processing methods made of semi-permeable membrane. It can under the action of the external pressure of some components of aqueous solution selectively through, so as to achieve dilution, purification or concentration separation purposes. Reverse osmosis phenomenon as early as 1748 by the French Able Knelt found. The […]

Reverse osmosis membrane cleaning steps? Water, process water treatment (separation, concentration, classification and purification) In the industrial production process, often have separation, concentration, classification and purification of a water solution needs. Conventional methods are precipitation, filtration, heating, freezing, distillation, extraction and crystallization processes. These methods show the shortcomings of long process, energy consumption, material loss, […]

1, in the room temperature does not occur under the conditions of phase change, solutes and water can be separated for heat-sensitive material separation, concentration, and phase separation method with a relatively low energy consumption. 2, reverse osmosis membrane separation technology to remove a wide range of impurities. 3, a higher rate of desalination and […]

(1) A polymer film will be developed to remove small chloride organic molecules. (2) An inorganic RO membrane that separates the hydrocarbon mixture will be developed. (3) based on the dynamic membrane, will develop inorganic and organic mixed material membrane. (4) the use of more advanced physical methods that the membrane structure and membrane structure […]

FDA in the sterile drug production guidelines for sterile preparations for the production workshop every six months for a leak detection, gmp inspection guidelines in China is usually recommended once a year. Iso14644 The recommended maximum time interval for leak detection with installed hepa is 24 months. Dop leak detection should be performed after installation […]

Efficient compressed air filters such devices in many modern areas are widely used, so in our article today is to introduce you to this knowledge, take a look at this device in the clean workstations The role! First, we must know that the so-called high efficiency filter is mainly used to capture 0.3um and below […]

1, high efficiency filter Mechanical seal, the use of gasket material, the thickness of 6 ~ 8mm, and positioning paste in the filter frame, after installation of the litter compression should be uniform, the compression rate of 25% to 50%; 2, the use of tank sealing, the groove rack installation should be level, no leakage […]