The pre-treatment of water is the pre-treatment before water refining to achieve good water refining treatment effects, change water quality, and increase the service life of refining equipment. What are the main pre-treatment methods for industrial ultrapure water equipment

There are many methods for treating pure water equipment, such as pre settling, coagulation, clarification, filtration, softening, disinfection, etc. After pre-treatment using these methods, impurities such as suspended solids (turbidity), chromaticity, colloids, organic matter, iron, manganese, temporary hardness, microorganisms, volatiles, dissolved gases, etc. can be removed or reduced to a certain extent. Let's follow the editor to take a look.

Pre sedimentation: It is the natural sedimentation treatment of large volume and low flow pure water equipment such as sedimentation tanks and pre sedimentation tanks.

Coagulation: Pure water equipment uses coagulants such as iron salts, aluminum salts, and polymers to form large particle precipitates with impurities in the water through flocculation bridging, and then remove them through clarifiers, filters, and other equipment.

Clarification: The large particles and precipitates formed by the coagulation of pure water equipment are separated in the clarification tank, and the precipitates are removed to obtain clean water.

Filtering: Pure water equipment intercepts and removes impurities from the treated water through other filtering materials provided by the equipment, such as various filters.

Softening: using chemical agents such as lime water and soda powder to remove the hardness of bicarbonate in water; Alternatively, cation exchange resin can be used to remove calcium, magnesium, and iron ions from water. This process is called softening.

Disinfection: Add some substances such as liquid chlorine and bleach to ultrapure water equipment to kill microorganisms in the water.

High purity water equipment is a tool that combines reverse osmosis technology with ion exchange technology to prepare ultrapure water. Adopting a microcomputer intelligent program control system, it can automatically detect and display water quality, while maintaining the water output while obtaining good water.

Let's share the operating points of high-purity water equipment.

In order to intercept small particles in high-purity water equipment, the diameter of the fiber filter column should not exceed 5um, which plays an important role in maintaining inlet cleanliness and increasing the service life of downstream components. Use a pump to pressurize the outlet of the fiber tower, allowing pressurized water to enter the activated carbon tower.

2. Activated carbon, which is widely used in ultrapure water equipment, is an adsorbent that can adsorb inorganic and organic substances in water, but its adsorption capacity varies for different substances.

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