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Reverse Osmosis Device
  Reverse osmosis is a high and new membrane separation technology invented by Loeb and Suri Rajan of the University of California in 1960. Its pore diameter is very small, mostly ≤ 10 × It can remove salts, colloids, organics, bacteria, viruses, heat sources, etc. with small molecular weight in water. It has been widely used for water treatment in industries such as brackish water desalination, pure water for electronics, medicine, drinking water, space water, seawater desalination, reclaimed water and wastewater reuse, and it is also useful in scientific research such as biology and medicine;
  Reverse osmosis, also known as reverse osmosis (RO), is to separate the solvent in solution through reverse osmosis membrane (or semi permeable membrane) under certain pressure. Because it is opposite to natural infiltration, it is called reverse osmosis. According to the different osmotic pressures of various materials, the reverse osmosis method that is greater than the osmotic pressure can achieve the purposes of separation, extraction, purification and concentration;
A、Reverse Osmosis Principle:
  Permeation: the spontaneous flow of water from one side of the dilute solution to the other side of the concentrated solution through the semi permeable membrane in the natural state is called infiltration; The semi permeable membrane only allows water molecules to pass through, and prevents the passage of dissolved solids (salts); As shown in the figure on the left;
  Osmotic pressure: the concentrated solution is continuously diluted with the continuous inflow of water. When the pressure generated by the flow of water to the concentrated solution is sufficient to prevent the continuous inflow of water, the osmosis is in equilibrium, as shown in the middle figure above; When the water flows from either side to the other side in equilibrium, the water is equal, that is, in equilibrium. At this time, the pressure naturally formed on both sides of the semi permeable membrane is called osmotic pressure;   Reverse osmosis: when an external pressure is applied on the concentrated water side, and the pressure is greater than its osmotic pressure, the water in the concentrated solution will flow to the dilute solution side through the semi permeable membrane, making the concentration of the concentrated solution side higher. This process is the reverse process of osmosis, called reverse osmosis; As shown in the figure below;
B、Reverse Osmosis Membrane
  Reverse osmosis is the executive mechanism of the whole desalination system, which is used to remove soluble salts, colloids, organics and microorganisms in water. The reverse osmosis membrane of the system adopts the new type of polyamide composite membrane with large flux, pollution resistance and corrosion resistance from DOW, LG and YDRANAUTICS of the United States. The increase of water yield is achieved by increasing the membrane area, not by increasing the membrane flux and water supply pressure, so the low pollution and blockage rate can be maintained. In this way, the high flow rate can be maintained for a long time and the membrane life can be prolonged. Low operating pressure can enhance the operating economy of the system. The increase of membrane area can make the newly designed reverse osmosis reverse osmosis system use fewer components, thus making the system more compact and saving installation costs.
C、Reverse Osmosis Device
  The reverse osmosis device is the heart of the pre desalination of the project. The water treated by the reverse osmosis device can remove most of the inorganic salts, organic substances, microorganisms, bacteria and other impurities.
  RO device has no phase change in the water quality separation process, high desalination rate, small equipment volume, automatic operation, strong adaptability, wide application range, no environmental pollution and other advantages. The RO devices assembled by our company are mainly imported famous brand components.   Reverse osmosis membrane technology has been widely used in the fields of power plant boiler make-up water, ultrapure water treatment in electronics and semiconductor industries, pure water treatment in chemical and pharmaceutical industries, food, beverage, drinking water treatment, seawater, brackish water desalination, metallurgy, light industry, electroplating, leather and other industries.
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