Sewage purification method for field of environment-friendly water supply and drainage purification treatment

Abstract

The invention discloses a sewage purification method for the field of environment-friendly water supply and drainage purification treatment, wherein the method comprises the following processes: a, when the water level in a siphon rises to a preset height, an incremental structure is started to seal a water inlet pipe, so that the water level in a water inlet tank rises; and b, when the water level in the water inlet tank rises to a preset height, the increment structure is started to open the water inlet pipe, so that water in the water inlet tank surges into the siphon to empty air in the siphon, and then a siphon effect is formed. Through the arrangement of the increment device, the water level in the water inlet tank rises, so that the air in the siphon is flushed away, the siphon effect is achieved, stable conduction of backwashing is guaranteed, and the sewage purification method is more convenient and faster to use and simpler to operate.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a sewage purification method used in the field of environmental protection water supply and drainage purification treatment. Background technique [0002] Siphon filter is a form of fast filter, which is characterized by using the principle of siphon to enter water and discharge sand washing water, thus saving two gates. In addition, it uses the small resistance water distribution system and the water level of the pool itself for backwashing, without the need for additional flushing water tanks or pumps, and it is easier to use hydraulic power to automatically control the operation of the pool, so it has been widely used. [0003] However, since the siphon filter needs to use the water level, water volume, water pressure, air pressure, etc. to realize automatic filtration and backwashing, the data requirements are more accurate, but there are still some probl...

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Problems solved by technology

[0003] However, since the siphon filter needs to use the water level, water volume, water pressure, air pressure, etc. to realize automatic filtration and backwashing, the data requirements are more accurate, but there are still some problems in the existing siphon filter. The air is sucked in, resulting in air accumulation in the siphon tube and poor siphon effect, or the siphon effect is difficult to form or even impossible to form, which seriously affects the efficiency of sewage treatment

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