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Swimming pool water treatment
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Swimming pool water treatment

Views: 27     Author: Site Editor     Publish Time: 2019-09-02      Origin: Site

Types of swimming pools

There are various types of swimming pools. Swimming pools differ in function (tropical swimming pool, sauna), size and conditions such as water temperature, cleaning system and water disinfection mechanism. A division can be made in indoor and outdoor swimming pools.

There is a difference between swimming pools with a water recirculation system and swimming pools that undergo constant water refreshment. In circulation pools, the water is recicled from a water purification system. Part of the water is separated and carried away after treatment. The pool will be filled up with fresh water.

When a swimming pool has a continual flow, the water is continually refreshed. The water that is retreated from the pool is discharged into the sewer, or it will be transported to a water purification plant.

Most public swimming pools apply water recirculation.

Green pool water treatment before

Green pool water treatment before

Green pool water treatment after

Green pool water treatment after

Purification steps

(1) Swimming pool water is treated by means of various purification steps. The water is first transported from swimming pools to a water purification plant . In the water purification plant, it will flow through a hair removal filter , which removes raw pollutions, such as hairs, plasters and leaves, from water. 

(2) After that, a flocculant is added, which causes smaller colloids to bind together. Colloids are visible floating particles of organic matter, such as skin tissue and textile fibers. This group of pollutants also concerns colloidal pollutants, such as saliva, soap remains, cosmetic products and skin fats. When these pollutants are abundant, they cause turbidity.

(3) Parameters that indicate the presence of undissolved particles are water turbidity and potassium permanganate (KMnO4) demand of the water. Potassium permanganate is used as an indicator of organic matter oxidation.

(4) Floating particles are removed from water in a sandfilter. The sandfilter is backflushed periodically. Finally, pollutants are discharged into the sewer.