Reverse osmosis equipment is mainly used to solve the elimination of drinking water and sea surface, as well as the softening of water. Many hospitals, clinics, and processing plants must use this machine equipment for purification, concentration, and separation. With the gradual and widespread use of reverse osmosis equipment, many production and manufacturing desalination water solution projects have achieved very good results and are also loved by the general public. So, do you understand the principle of reverse osmosis pure machine equipment? Today, the editor is here to introduce the principle of reverse osmosis pure machine equipment.

The reverse osmosis equipment consists of three parts: raw water preparation treatment, reverse osmosis purification system software, and super purification post-treatment process. Preparatory treatment mainly aims to ensure that the raw water undergoes purification treatment to meet the standards, and then enters the purification system software. This way, the raw water that has undergone the first purification treatment is less likely to cause harm to the subsequent machinery and equipment. The post-treatment process system software further removes small amounts of residues such as positive ions and organic compounds from reverse osmosis purified water based on integrated technology to meet customer water requirements.

Reverse osmosis is a separation technology driven by pressure difference, which has the characteristics of simplicity, high efficiency, high separation degree, and no change in direction. The pores of reverse osmosis membranes are as small as nanotechnology (1nm=10-8m), and under a certain working pressure, pure water in the raw water will seep in, leaving behind organic compounds and residues that must be purified.

Generally, when the conductivity of the raw water is< two hundred μ At S/cm, the conductivity of primary RO pure water is 5 μ S/cm, in compliance with the laboratory's third level water usage standards. For regions with high conductivity of raw water, in order to save the cost of post process cation resin ion exchange method epoxy resin replacement and improve the purity of water bodies, customers can consider selecting a secondary reverse osmosis purification system software, which has a conductivity of about 1-5 for secondary RO pure water μ S/cm, related to the raw water body. The basic principle and function of reverse osmosis: Place the same volume of dilute solution (such as water) and concentrated solution (such as sea surface or salt water) on both sides of a container, and isolate them with a semi permeable membrane in the middle. The organic solvents in the dilute solution will naturally cross the semi permeable membrane and flow towards the concentrated solution side. The liquid level on the concentrated solution side will be higher than the liquid level of the dilute solution by a certain aspect ratio, creating a pressure difference to achieve infiltration equilibrium. This type of pressure difference is determined by the size of the osmotic pressure, and the concentration value and temperature are not related to the characteristics of the semi permeable membrane. If a working pressure exceeding the osmotic pressure is released on the concentrated solution side, the organic solvents in the concentrated solution will flow towards the dilute solution, and the flow direction of such organic solvents will be reversed from the original infiltration direction. This entire process is called reverse osmosis.

After being treated with primary reverse osmosis water purification equipment, the conductivity of the produced water in general drinking water or surface water through reverse osmosis is improved; ten μ S/cm, conductivity of produced water after secondary reverse osmosis water purification equipment< five μ S/cm or even lower, with the addition of ion exchange machine equipment or EDI equipment after the reverse osmosis water purification equipment system software, an ultra pure water system can be produced, achieving a resistance of 18 megaohms (conductivity=1/resistance). Reverse osmosis uses sufficient working pressure to extract and infiltrate organic solvents (generally referring to water) from the aqueous solution according to the reverse osmosis membrane (a semi permeable membrane), and can be used to separate, purify, and concentrate the aqueous solution using reverse osmosis methods that exceed the osmotic pressure. The key separation target of reverse osmosis membranes is the cation category in aqueous solutions.

Reverse osmosis is a highly precise biological fiber facial mask liquid separation technology, which releases the actual operating pressure at the water seepage (concentrated solution) side to get rid of the natural osmotic pressure. When the actual operating pressure higher than the natural osmotic pressure is added to the concentrated solution side, the flow direction of water seepage will be reversed, and the water content in the water seepage (concentrated solution) will be subject to the purification treatment water yield at the dilute solution side according to the reverse osmosis membrane; Reverse osmosis machine equipment can block all soluble salts and organic compounds with a content exceeding 100%, but allows water to pass through. The desalination rate of reverse osmosis composite bags generally exceeds 98%. They are commonly used in industrial pure water and electronic device ultra pure water system production, edible mineral water production and manufacturing, heating furnace water supply and drainage, and other entire processes. Applying reverse osmosis machine equipment before ion exchange can significantly reduce the consumption of actual operating water and sewage.

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