The filtration equipment for swimming pool water treatment is mainly divided into: sand tank filter, hair filter, ultraviolet sterilizer, ozone reaction tank, etc. Sand tank filtration principle: Generally, a certain scale of quartz sand is placed in the sand tank. The size and specification of the quartz sand are different within a certain range. In the sand tank, the quartz sand is arranged from top to bottom, from small to large. , water enters from the upper layer of sand and comes out from the lower layer. When water flows through the filter layer from above, part of the solid suspended matter in the water enters the tiny holes formed by the upper layer of filter material and is trapped by the surface layer of the filter material due to adsorption and mechanical retention.
This filtering effect is not only on the surface of the filter layer, but also has this interception effect when water enters the middle filter layer. In order to distinguish it from the filtration of the surface layer, this effect is called osmotic filtration. In addition, because the sand particles are closely arranged with each other, when the suspended particles in the water flow through the tortuous channels in the sand layer, there will be more opportunities and time to collide and contact with the surface of the filter material. The suspended solids in the sand layer bond with the flocs on the particle surface of the sand layer to form a contact coagulation process. The hair collector is mainly used in reclaimed water treatment and swimming pool circulating water treatment systems. It is used as a pre-filtration treatment to remove hair, fibrous substances and larger suspended substances in the water, so as to prevent them from winding the impeller of the circulating water pump and ensure the normal operation of subsequent system equipment.
Working principle: There is a stainless steel filter screen inside the equipment, and the raw water is filtered through the internal metal filter screen to block debris in the screen, and the purified water flows out. There is a sewage outlet at the bottom of the container, which can remove sediment, hair, fibers and other sundries, and the filter can be removed from the inside for cleaning. The working principle of ultraviolet sterilizer The ultraviolet sterilizing band is mainly between 200-300, and the sterilizing ability of 253.7nm wavelength is the strongest.
When various bacterial viruses in water or air pass through the ultraviolet (253.7nm wavelength) irradiation area, the ultraviolet light penetrates the cell membrane and nucleus of the microorganism, destroys the molecular bonds of the nucleic acid (DNA or RNA), and makes it lose its ability to replicate or lose its activity. Death, thereby killing all bacteria and viruses in the water or air without using any chemicals. Ultraviolet disinfection and sterilization technology is the latest generation of disinfection technology that emerged in the late 1990s in the world. Guangdong Boying Environmental Protection Equipment Co., Ltd. is a professional company specializing in R&D, production and sales of environmental protection water treatment equipment. The main products are: stainless steel sand tank, hair collector, ultraviolet sterilizer, ozone reaction tank and other water treatment equipment.
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