Small-scale buried domestic sewage treatment integrated device

Abstract

A small-sized underground domestic sewage treatment integrated device comprises a collection tank, a bioreactor and a miniature deodorization filter, wherein a grid is arranged in the collection tank, and a suction pump is arranged at the tank bottom; the bioreactor comprises a casing, the top end of the casing is sealed, the casing is divided into an upper cavity and a lower cavity by a taper hopper plate close to the bottom end, a partition cover is arranged in the upper cavity, the top end of the partition cover is in sealed connection with the top end of the casing, the lower end is open and is spaced with the taper hopper plate, an aerobic section is formed in the partition cover, a precipitation section is formed between the outer wall of the partition cover and the inner wall of the casing, a hydrolysis section is formed in the lower cavity, the suction pump is connected with the lower cavity through a backflow pipe, a flow guide water distribution pipe is arranged in the partition cover, a top end opening of the flow guide water distribution pipe is located close to the top end of the partition cover, a tail end opening penetrates through the taper hopper plate and extends into the lower cavity, and an exhaust pipe is arranged at the top end of the casing and connected with a water level constant-pressure regulation device outside the casing. The small-sized underground domestic sewage treatment integrated device has the advantages of small occupied area, simple structure, low energy consumption, high oxygen utilization ratio and avoidance of secondary pollution.

Description

Technical field [0001] The invention relates to the field of rural domestic sewage treatment, in particular to a buried small-scale integrated domestic sewage treatment device. Background technique [0002] In recent years, in order to promote the construction of beautiful villages and improve the quality of life of rural residents, rural water supply projects have been gradually implemented. However, rural drainage projects have been ignored, and most of the rural domestic sewage does not undergo any treatment. After being directly discharged into a river or discharged into an outdoor open space, it is allowed to seep into the ground. A small part of it is allowed to seep into the ground after simple treatment in a septic tank, seriously polluting river water and well water. With the development of the rural economy, the living standards in rural areas continue to improve, and the problem of non-point source pollution caused by rural domestic sewage has become increasingly serio...

AI Technical Summary

Problems solved by technology

Such as land treatment system, artificial wetland sewage treatment system, biological contact oxidation tank, ecological pond sewage treatment system, soil infiltration sewage treatment system, anaerobic digester sewage treatment and other technologies have problems such as low nitrogen and phosphorus removal efficiency and poor winter operation effect , seriously affected the effect of rural environmental improvement

[0005] Since the pollutants in domestic sewage are mainly organic matter, which has good biochemical properties, the treatment of domestic sewage usually adopts biological treatment methods. At present, rural domestic sewage devices in the market use a combination of multiple treatment processes , including primary sedimentation tank, anaerobic tank, aerobic tank, secondary sedimentation tank, dosing disinfection tank and other process sections. The equipment is bulky, occupies a large area, and the cost of civil construction is high. Fixed suspension filler and fixed aeration are used. system, etc., the maintenance and repair of equipment has great inconvenience and potential safety hazards

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