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Swimming pool water quality disinfection and water circulation requirements

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Update time : 2019-12-21 12:18:23

The swimming pool must be equipped with circulating water purification and disinfection equipment, and can meet the requirements of water quality treatment. The swimming pool water quality circulation purification and disinfection equipment should be kept complete and intact, establish a regular inspection and maintenance system, make regular inspections, maintenance and repairs and make records. When problems are found, they should be repaired in a timely manner, and emergency measures should be taken to ensure that all kinds of facilities and equipment operate normally and maintain a good condition.

First, the selection of circulating water purification and disinfection equipment should meet the following requirements:

(1) The equipment is simple, safe and reliable, and easy to operate and maintain;

(2) The measurement of the measuring device is accurate and flexible;

(3) The dosing system can be controlled automatically, and it is safe and reliable;

(4) The chlorinating machine shall be provided with at least one set of spare. The chlorinating machine shall have a stable and uninterrupted water source. The operation and stop of the chlorinating machine shall be interlocked with the operation and stop of the circulating water pump.

Second, swimming pool water disinfection

1. The choice of disinfectant should meet the following requirements:

(1) Strong sterilization ability and continuous sterilization function;

(2) Does not cause water and environmental pollution, and does not change the water quality of the pond water;

(3) No irritation or little irritation to the human body;

(4) Little corrosion to building structures, equipment and pipelines.

2. Swimming pool water should be disinfected with chlorine disinfectant. At present, the chlorine-containing disinfectants used in China's swimming pools are: liquid chlorine, bleaching powder, bleaching water, and strong chloric acid (TCCA). Refined bleaching powder is gradually eliminated due to residues that block the pipeline and affect water quality. Floating water contains extremely unstable chlorine, and its available chlorine will gradually decrease with the influence of factors such as environment, temperature, humidity, light and storage time. When using liquid chlorine disinfection, leakage prevention measures should be taken, including the water treatment machine room should be kept away from the swimming pool and closed, and the room should have emergency alarm devices. The liquid chlorine should be automatically added by vacuum, and the chlorine and the pool water should be fully mixed and contact Device; Strong chloric acid (TCCA) due to the conjugated group, gradually decomposes in water to release hypochlorous acid. The remaining cyanurate has a stabilizing effect on the available chlorine in water. It is non-toxic in itself and is quite stable in storage. In recent years, there are quite a few swimming pools in China that use TCCA as a pool water disinfectant.

3. Where conditions and needs arise, ozone, UV or other disinfection methods can be used. When using ozone or ultraviolet disinfection, it should be supplemented with chlorine disinfection to maintain the continuity of disinfection.

4. The amount of chlorine added to the pool water (including the fresh water continuously supplied by the children's wading pool) is calculated based on the free residual chlorine in the pool water of 0.3-0.5mg / L, and the amount of chlorine added to the foot disinfection pond water is 5 The calculation of -10mg / L confirms that the best time for dosing is 1-2 hours before opening. When the swimming place is open, regularly measure the residual chlorine in the pool water and make a record. When possible, the residual chlorine is measured every 2 hours when the indoor swimming place is open; the residual chlorine is measured every hour when the outdoor swimming place is open.

Third, in order to prevent the growth of algae in the artificial swimming pool, add 0.25-0.5mg / L copper sulfate in the pool water (at a rate of 2-3kg per 1000m3 of water). It is better to put 1-2 times.