Strengthened land domestic sewage treatment device with built-in biological porcelain granule pipe

Abstract

The invention belongs to the technical field of water treatment, in particular to a strengthened land domestic sewage treatment device with a built-in biological porcelain granule pipe, comprising a surface layer, a local soil and find sand layer, a find sand layer and a gravel water-collecting layer from top to bottom; the local soil and find sand layer is provided with a water-distribution percolation tank which is internally provided with the biological porcelain granule pipe; the biological porcelain granule pipe is filled with biological porcelain granules; a gap between the water-distribution percolation tank and the biological porcelain granule pipe is also filled with biological porcelain granules; both ends of the biological porcelain granule pipe are provided with muffle plates;one end of the biological porcelain granule pipe is connected with an intake pipe; the other end is connected with a backwashing water pipe; the intake pipe is also used as the backwashing water pipe;the top of the water-distribution percolation tank is covered with permeable non-woven fabrics; an exhalent pipe is arranged below the gravel water-collecting layer; double opening standpipes are inserted from top to bottom, sequentially penetrate through the surface layer, the percolation layer and the gravel water-collecting layer and comprise an inner layer of drainpipes and an outer layer ofdrainpipes. The device lessens pollutants entering in a land treatment system, such as suspended substances, organic substances, and the like, so as to reduce soil blockage phenomenon, improve the hydraulic load and prolong the serviceable life of land sewage treatment. In addition, the double opening standpipes are arranged to enhance oxygen supply and are beneficial to monitoring the operation state of the system in an operation process.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a device for strengthening land domestic sewage treatment with a built-in biological ceramsite tube. Background technique [0002] my country is one of the 13 water-poor countries with a low level of economic development, and the construction and operation costs of traditional large-scale secondary sewage treatment plants are high. The sewage pipe network in many urban areas in my country is incomplete, and the pipe network reconstruction project is huge, which brings great difficulties to the collection and treatment of sewage. In the sewage treatment of relatively dispersed residential areas in villages and towns, the cost of pipeline construction accounts for the main part, even as high as 90%. Seriously restrict the promotion of sewage treatment. With the development of tourism and real estate in my country, a large number of tourist attractions, sanator...

AI Technical Summary

Problems solved by technology

[0007] (1) Dosing coagulation to strengthen the first-level treatment technology, although it can strengthen the pretreatment effect, but the process is complicated, there are many equipment and facilities, and the operation and management are troublesome, which greatly increases the cost of sewage treatment

[0008] (2) The dependence on the preprocessing system is strong, and the system technology integration is not high

For example, the publication number is CN1927733, and the title of the invention is "a high hydraulic load underground infiltration sewage treatment composite system". Although it can greatly increase the hydraulic load of the underground infiltration sewage treatment system, expand the scope of application of this technology, and reduce engineering costs, the integration of system technology is not high.

[0009] (3) In addition, the contradiction between the large oxygen consumption of the system and the insufficient oxygen supply capacity during operation has not been well resolved, and natural reoxygenation is difficult to improve the oxygen supply capacity of the system

However, for sewage containing a large amount of suspended solids, once the Nimi tank is blocked, it is difficult to recover

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