Why water treatment plants be required in more places

Although the tap water used in daily use is filtered, large particles be removed, and sterilized through a variety of means, the water tested by the water plant can meet the national standards, but before it is discharged to each household, it has passed through different locations. Some water pipes may be damaged or intersect with some sewage pipes, long-term use will lead to the precipitation of some pollutants, thus polluting the tap water.

Although certain substances can be removed after boiling tap water, substances such as rust, lead, and phenol in water cannot be removed by boiling. At this time, water treatment plants can be used to remove substances in the water through physical and chemical means.

At present, there are many water treatment plants in the market, such as: reverse osmosis pure water treatment plants, ion exchange pure water treatment plants, ultrafiltration water treatment plants, softening water treatment plants, seawater desalination water treatment plants, etc.; first of all, the water treatment plants shall be designed based on different customer conditions (Raw Water Quality / Produced Water Requirements/Output Requirements) .

The most commonly used is reverse osmosis water treatment plants. Through a certain pressure on the water, water molecules and ionic mineral elements pass through the reverse osmosis membrane. The pore size of the reverse osmosis membrane is only 0.0001 microns, while the diameter of viruses is generally 0.02. -0.4 micron, the diameter of ordinary bacteria is 0.4-1 micron, so most of the inorganic salts (including heavy metals), organic matter, bacteria, and viruses dissolved in water cannot pass through the reverse osmosis membrane and will be discharged from the concentrated water outlet.

It should be noted that because the first reverse osmosis membrane does not have a thrust ring, once reverse cleaning is performed, it is very easy to cause extrusion deformation of the membrane element, so flow and pressure must be limited during reverse cleaning. At the same time, if there is fouling at the end, these salt crystals must be removed first. If you do not know, perform reverse cleaning directly. The sharp salt crystals are likely to cause damage to the membrane surface and cause more serious damage. Therefore, the reverse osmosis membrane cannot reverse If the membrane is fouled, the performance of the membrane can be restored by chemical cleaning or can consider to replace a new membrane.

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