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bz , ' >bzbr' 1.
bzbr' Overview of reverse osmosis water treatment device
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bzbr' With Industrial requirements for the use of water are getting higher and higher. Coupled with the continuous development of membrane materials and membrane production methods, membrane separation technology has also been greatly expanded. Among them, reverse osmosis membrane water treatment has also been well developed.
bz , ' >bzbr' 2.
bzbr' Principle of reverse osmosis water treatment device
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bzbr' The semipermeable membrane separates the solution from the pure solvent, because There is a concentration difference, and the pure solvent will diffuse to one side of the solution, which is called osmosis. If pressure is applied to one side of the solution to exceed the osmotic pressure, the solvent on one side of the solution will flow toward the pure solvent side, thus achieving the separation of solute and solvent. This is called reverse osmosis.
bz , ' >bzbr' 3.
bzbr' Characteristics of reverse osmosis membrane separation technology of reverse osmosis water treatment device
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bzbr' , not at normal temperature When a phase change occurs, the solute and water can be separated. It is suitable for the separation and concentration of heat-sensitive substances. Compared with separation methods with phase change, the energy consumption is lower.
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bzbr' , wide range of impurity removal, can remove inorganic salts, organic impurities, bacteria, viruses, etc.
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bzbr' , high desalination rate, can achieve greater than
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bzbr' , simple separation device, easy to operate, control and maintain.
bz , ' >bzbr' , there are certain requirements for incoming water quality, such as pollution density index (D), turbidity <., ensuring there is no residual chlorine or similar oxides, etc.
bz , ' >bzbr' 4. Application scope of reverse osmosis water treatment device
bz , ' >bzbr' It is mainly used in electronics, chemical industry, printing and dyeing, food, pharmaceutical and drinking pure water and other fields.
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bz , ' >bzbrd two-stage reverse osmosis equipment
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bzbr' includes two-stage R device, cleaning system and intermediate water tank.
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bzbr'Reverse osmosis mainly removes dissolved salts, organic matter, silica colloids, macromolecular substances and particulate matter not removed by pretreatment in water. The two-stage R process can effectively remove ions from the water and at the same time make the effluent meet the water inlet requirements of the subsequent D device process.
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bzbr' The reverse osmosis system consists of a filter, a high-pressure pump, a pressure vessel and a reverse osmosis membrane. The first-stage reverse osmosis device R is arranged according to:, using a series arrangement of branch-inch membranes, the water production volume is m/h, the recovery rate is % The second-stage reverse osmosis device R is arranged according to:, using a series arrangement of branch-inch membranes, the water production volume is m/h, recovery rate %. For the first stage of the membrane element, the low-pressure composite membrane of Haiderneng Company is selected, and for the second stage, the ultra-low-pressure composite membrane of Haiderneng Company is selected. (Select membrane)
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bzbr' In order to ensure the stable operation of the R device, a sterilizer and antiscalant dosing system are installed in front of the R. The sterilizer station has a processing capacity of /h. Its main function is to kill bacteria in the water and prevent the R membrane from being clogged. The emission wavelength of the ultraviolet lamp is m, the intensity is m/m, and the sterilization rate is %.
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bzbr' In order to prevent scaling on the concentrated water side of the R device, an anti-scaling agent must be added to the incoming water. The anti-scaling agent is used and the designed dosage is .m/ . Or use antiscalant, and the designed dosage is m/.
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bzbr' In order to remove pollutants in the water, H is added between the two levels of R to adjust the H value of the water from the first level R to . The design dosage of H is .m/ .
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bzbr'The cleaning system is a skid-mounted equipment, including a cleaning box, a mm filter and a cleaning pump. When the R system is scaled or clogged, the R device can be cleaned, and D can also be cleaned at the same time.
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bzbr' The function of the intermediate water tank is to store R produced water and adjust the water volume, so that the system operation can be flexibly adjusted.
bz, ' >bzbr' The conductivity of the water produced by the two-stage R system is
bzbr' Process flow
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bzbr' Raw water pressure pump multi-media filter activated carbon filter water softener security filtration First-stage reverse osmosis machine, second-stage reverse osmosis machine, water storage tank, pure water transfer pump, water point
bz, ' >bzbr' 2.
bzbr' Application scope of reverse osmosis device
bz, '>bzbr'. Purification of pure water, distilled water, food and beverage water.
bz, ' >bzbr'. Preparation of pure and ultrapure water in electronics, medicine, food and other industries.
bz, ' >bzbr'. It is used in process engineering for separation, concentration, and liquid decolorization in light textile, chemical, food and other industries.
bz, ' >bzbr'. Desalination of sea water and brackish water.
bz , ' >bzbr' 3.
bzbr' Characteristics of reverse osmosis
bz , ' >bzbr' . Large water permeability and high desalination rate. Under normal circumstances
bz, '>bzbr'. It has a high interception and removal effect on organic matter, colloids, particles, bacteria, viruses, heat sources, etc.
bz, ' >bzbr'. Low energy consumption, high water utilization, and lower operating costs than other desalination equipment.
bz, ' >bzbr'. There is no phase change in the separation process and it is reliable and stable.
bz, ' >bzbr'. The equipment is small in size, simple to operate, easy to maintain, has strong adaptability and has a long service life
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