What are the characteristics and problems of concentrated water in the reverse osmosis purified wate

What are the characteristics and problems of concentrated water in the reverse osmosis purified water treatment equipment system?

by:Ocpuritech     2021-05-21
Dense water purified by reverse osmosis water treatment equipment features of the system and what problems the article:? Once upon a time, purified water becomes part of industrial production and domestic water, reverse osmosis water purification equipment in the course of work will produce some concentration of water, concentrated Water is mainly produced in the reverse osmosis system in the reverse osmosis purified water treatment equipment. The discharge of concentrated water accounts for 25% of the total inflow. This has caused a great waste of water resources today when water resources are becoming increasingly scarce. This seriously hinders the further promotion of reverse osmosis technology. The following editor will introduce what problems are prone to the concentrated water discharged from the reverse osmosis purified water treatment equipment? The characteristics of the discharged concentrated water are: ① high salt and silica content, high pH, u200bu200band high alkalinity; ② scaling salt Its ion product is much greater than its solubility product, such as: CaCO3, CaSO4, BaSO4, SrSO4; ③ There are bacteria and organic matter. Discharged concentrated water is prone to problems: 1. Easy to scale. Because the concentrated water is concentrated four times, the silica content and alkalinity in this water are large, and many scale-forming salts such as CaCO3, CaSO4, BaSO4, SrSO4, etc., their ion product is far greater than their concentration product. If it is not controlled by effective methods, fouling is inevitable. 2. Easy to foul and block In reverse osmosis concentrated water, trace organic matter and colloids in the influent are enriched. If there is no effective control, it will also cause fouling of the reverse osmosis membrane. 3. Easy to pollute In reverse osmosis concentrated water, the microorganisms in the influent will accelerate their growth under the action of various enriched nutrients, which will cause biological pollution of the reverse osmosis membrane, so it must be effectively controlled. This is the end of the introduction of what problems are likely to occur in the concentrated water discharged from the reverse osmosis purified water treatment equipment. In order to reduce waste, the recovery of the concentrated water is very important. This reduces water consumption and does not require a very complicated pretreatment process.
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