Sewage treatment tank, sewage circulating treatment method and sewage circulating treatment system

Abstract

The invention relates to a sewage treatment tank, a sewage circulating treatment method and a sewage circulating treatment system. The sewage treatment tank comprises a water purification vegetation area (2), and a solid particle filtering area (5) combined with the water purification vegetation area (2), wherein a water inlet (1) is formed in the upstream end of the water purification vegetationarea (2) in the length direction of the water purification vegetation area (2); a clear water area (3) and a microbial decomposition area (4) are arranged at the downstream end of the water purification vegetation area (2); and the water purification vegetation area (2), the clear water area (3) and the microbial decomposition area (4) communicate with one another in pairs. Particularly, the sewage treatment tank is provided with a water outlet (9), and a pressure pump (10) is used for guiding water to a pressure water tank (11); the pressure water tank (11) is used for guiding the water to water consumption equipment (12), and the water flows through a primary separation area (13) and flows into the sewage treatment tank; and the water flows to a membrane tank filtering area and then flows to the sewage treatment tank, so that the sewage circulating treatment method and the sewage circulating treatment system are formed. The oxygen content of the water can be increased.

Description

Technical field [0001] The invention relates to a sewage treatment tank, which includes a water purification vegetation area and a solid particle filtering area combined with the water purification vegetation area. [0002] The invention also relates to a sewage recycling method and a sewage recycling system that require the use of the sewage treatment tank. Background technique [0003] Chinese Invention Patent Application Publication CN104891641A, the publication date is 20150909, discloses a vegetation bed aeration tank sewage treatment device, including a tank body, a system inlet pipe, an aeration pipe, a vegetation bed unit, a system outlet pipe, and a system discharge pipe , Suspended filler; system inlet pipe, system outlet pipe and system vent pipe are located on both sides of the pool body, the aeration pipe is at the bottom of the pool body, the vegetation bed unit is at the top of the pool body, and the suspended filler is located below the vegetation bed unit. interna...

AI Technical Summary

Problems solved by technology

[0006] Although the above-mentioned 3 existing technologies all treat sewage, when in use, some need to filter the sewage from top to bottom, which is not conducive to the formation of flowing water on the surface, and in deep water, due to the effect of water pressure , often make the gas difficult to dissolve in water, and the oxygen content is not high, especially these 3 existing technologies all use the filtered water directly, lack of standing, resulting in the filtered water not being fully decomposed by microorganisms toxins, Microorganisms lack the time and oxygen required for decomposition, making it difficult to improve water quality

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