Industrial water treatment equipment

Description :

　　Reverse osmosis is a membrane separation technology that utilizes the function of selectively permeable (semi permeable) membranes with pressure as the driving force. When the pressure applied in the system is greater than the osmotic pressure of the inlet solution, water molecules continuously pass through the membrane, flow into the central pipe through the water production channel, and then impurities such as ions, organic matter, viruses, etc. in the effluent flow out at one end, which are trapped on the inlet side of the membrane and then flow out at the outlet end of the concentrated water, thus achieving the purpose of separation and purification.

　　Reverse Osmosis (RO) is a high-tech membrane separation technology driven by pressure difference, characterized by high separation efficiency, no phase change, and simplicity. The pore size of the reverse osmosis membrane has been reduced to nanometers (1nm=10-9m), and no "filtering" pores on the surface can be seen under scanning electron microscopy. At operating pressures higher than the osmotic pressure of the raw water, water molecules can reverse osmosis through the RO semi permeable membrane to produce pure water, while a large amount of inorganic ions, organic matter, colloids, microorganisms, pyrogen, etc. in the raw water are intercepted by the RO membrane.

　　There are two ways to clean reverse osmosis equipment: online cleaning and offline cleaning.

　　1、 Online cleaning

　　Online cleaning refers to the overall cleaning of the reverse osmosis device, without taking out the pressure vessel for the membrane components, and is usually designed and used in larger systems. This cleaning method is simple and convenient to operate, with a short time, but it is prone to incomplete cleaning and unsatisfactory results. This method can be used when the pollution of the reverse osmosis device is relatively light.

　　2、 Offline cleaning

　　Offline cleaning refers to the process of removing membrane components from a reverse osmosis pressure vessel and placing them into a cleaning equipment for cleaning. Typically, the number of components cleaned at a time should not exceed 6. This cleaning method is simple and convenient to operate, thoroughly cleaned, and has good results. But when there are many membrane components, the cleaning time is longer. This method can be used when the reverse osmosis pollution is severe or the online cleaning effect is poor.

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• Industrial water treatment equipment