Expressway service area sewage comprehensive treatment device

Abstract

The invention belongs to the technical field of sewage treatment. An expressway service area sewage comprehensive treatment device is characterized by comprising a fermentation pool, a regulating pool, an aeration vertical flow wetland, a horizontal baffled flow wetland and a comprehensive biological pond; excrement of an excrement pool and catering sewage in an expressway service area are introduced into the fermentation pool through a Z-shaped first concealed pipe, and flushing sewage of a urine pool in the expressway service area is introduced into the regulating pool through a second concealed pipe; biogas residue at the bottom of the fermentation pool is discharged outside through a submersible sewage pump, and fermenting liquid in the fermentation pool overflows to the regulating pool through a Z-shaped concealed pipe; a submerged pump is arranged in the regulating pump and is connected with the aeration vertical flow wetland through a fourth concealed pipe, the aeration vertical flow wetland is connected with the horizontal baffled flow wetland through a fifth concealed pipe, the horizontal baffled flow wetland is connected with the comprehensive biological pond through an open channel, and the effluent of the comprehensive biological pond is discharged up to the standard or recycled. The expressway service area sewage comprehensive treatment device is simple in structure, low in energy consumption and suitable for high ammonia-nitrogen sewage characteristics and water quality and unstable water quantity in the expressway service area.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and more specifically relates to a comprehensive treatment device for sewage in expressway service areas, which is suitable for the management and maintenance of the ecological environment in expressway service areas. Background technique [0002] With the rapid development of the field of transportation construction, many expressways have been built in our country, and a large number of service areas have also been built accordingly. Most of these service areas are far away from the city's municipal pipelines and cannot use the sewage treatment system of the municipal pipeline network. At present, most of the sewage in the service area is directly discharged without treatment, which not only causes water pollution and soil pollution in the surrounding environment, but also causes a serious waste of water resources. [0003] In recent years, as governments at all levels have increased t...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a comprehensive treatment device for sewage in expressway service areas, which solves the problems of poor impact load resistance, low treatment efficiency, complicated maintenance and management, and low water recycling rate in the prior art. The device has a simple structure and low energy consumption.

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