Domestic sewage treatment device and construction process thereof

Abstract

The invention discloses a domestic sewage treatment device and a construction process thereof. The domestic sewage treatment device comprises a hydrolysis regulating tank, an anaerobic filter tank, ade-nitrification tank, an MBR tank and an ecological tank, which are arranged in sequence; the hydrolysis regulating tank, the anaerobic filter tank, the MBR tank and the de-nitrification tank are respectively composed of glass fiber reinforced plastic tank bodies; a sewage inlet is formed in the hydrolysis regulating tank; the water outlet of the hydrolysis regulating tank is connected with the water inlet of the anaerobic filter tank through a pipeline; the water outlet of the anaerobic filter tank is connected with the water inlet of the de-nitrification tank through a pipeline, the water outlet of the de-nitrification tank is connected with the water inlet of the MBR tank through a pipeline, the water outlet of the MBR tank is connected with the water inlet of the ecological tank through a pipeline, and a water outlet is formed in the ecological tank. Compared with the prior art, sewage is treated for multiple times through the hydrolysis regulating tank, the anaerobic filter tank,the de-nitrification tank, the MBR tank and the ecological tank, and a biological treatment mode and a non-biological treatment mode are combined, so that the treatment effect is improved, and the environmental burden is reduced.

Description

technical field [0001] The invention relates to the field of domestic sewage treatment, in particular to a domestic sewage treatment device and a construction process thereof. Background technique [0002] Domestic sewage is the wastewater discharged from residents' daily life, mainly from residential buildings and public buildings, such as residences, institutions, schools, hospitals, shops, public places and industrial enterprise toilets. The pollutants contained in domestic sewage are mainly organic matter and a large number of pathogenic microorganisms. The organic matter present in domestic sewage is extremely unstable and easily rots to produce stench. Bacteria and pathogens reproduce in large numbers using organic matter in domestic sewage as nutrients, which can lead to the spread of infectious diseases. Therefore, domestic sewage must be treated before discharge. [0003] The existing sewage treatment equipment has certain defects in use. The existing sewage trea...

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Problems solved by technology

[0003] The existing sewage treatment equipment has certain defects in use. The existing sewage treatment equipment has a simple structure, and only simple filtration is used, which cannot effectively reduce the N and P content in the water body. The treatment efficiency is low and the operation is inconvenient.

[0004] FRP tank technology is widely used in the sewage field. During the construction of FRP tanks on the construction site, frequent deformation of the tank body, tearing of the partition, deformation of the head and water leakage, etc., affect the construction progress and customer satisfaction.

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