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Multi-medium biological-ecological cooperative treatment system and multi-medium biological-ecological cooperative treatment method for sewage in highway affiliated facilities

An ancillary facility and collaborative processing technology, applied in the field of environmental protection, can solve problems such as delay in startup and commissioning, high construction costs, limited space, etc., and achieve the effects of easy management, convenient operation and management, and stable operation

Active Publication Date: 2014-10-08
CHINA ACAD OF TRANSPORTATION SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the application process of some projects, it was found that the technology had problems such as lag in startup and commissioning, high construction costs, easy blockage, and limited space.

Method used

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  • Multi-medium biological-ecological cooperative treatment system and multi-medium biological-ecological cooperative treatment method for sewage in highway affiliated facilities

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023]A multi-media biological ecological collaborative treatment system and method for highway auxiliary facilities sewage of the present invention is composed of a multi-media fixed biological bed and a tidal flow constructed wetland. A regulating pool (1) is provided in front, and the regulating pool is a buried pool provided with a water inlet and an inspection port, and the regulating pool is provided with a structural partition (2). The multi-medium fixed biological bed is a tower structure with a modular design, consisting of a water distribution system (11), a closed tower layer basket (4), a porous carrier packing basket (7), a functional carrier packing (8) and a water collection system ( 10) Composition. The heating support grid (6) is laid in the closed tower basket (4), and the hole-distributing carrier packing basket (7) is placed on the heating supporting grid (6), and the filling function of the hole-distributing carrier packing basket (7) is The carrier fille...

Embodiment 2

[0026] The multi-medium fixed biological bed is a square or circular tower layer structure. The system is 3m high. It adopts a layered module structure. It is divided into 4 layers, each layer is 40cm high, and the distance between each layer is 30cm. The first layer is macroporous polyether carrier 5-8mm, the second layer is: natural volcanic rock 8mm, the third layer is: microporous polyether carrier 3-5mm, the fourth layer is natural volcanic rock 2-3mm:

[0027] The tidal flow artificial wetland system is 1m high, with a breathable matrix layer of 10cm, a water distribution layer of 10cm, an ecological filter layer of 60cm, and a water collection layer of 20cm. There are 4 layers of multi-media filter layers, 1~3mm volcanic rock ceramsite: 1~3mm zeolite: 3~ 5mm volcanic rock ceramsite: 3~5mm natural volcanic rock = 1:1:1:1,

[0028] Multimedia fixed biological bed hydraulic load 2.0m 3 / m 2 d. Tidal flow constructed wetlands under a hydraulic load of 0.3m 3 / m 2 In the...

Embodiment 3

[0030] The method is the same as Example 2. The multi-medium fixed biological bed is a square tower structure with a system height of 3m. It adopts a layered module structure and is divided into 4 layers. Each layer is 40cm high and the distance between each layer is 30cm. The functional carrier filler is from top to bottom Fill the carrier filler in sequence: the first layer is macroporous polyether carrier 5-8mm, the second layer is: light volcanic rock ceramsite 8mm, the third layer is: microporous polyether carrier 3-5mm, the fourth layer is Volcanic rock 2-3mm.

[0031] The tidal flow artificial wetland system is 1m high, with a breathable matrix layer of 10cm, a water distribution layer of 10cm, a multi-media filter layer of 60cm, and a water collection layer of 20cm. ~5mm volcanic rock ceramsite: 3~5mm natural volcanic rock=1:1:1:1,

[0032] Multimedia fixed biological bed hydraulic load 4.0m 3 / m 2 d. Tidal flow constructed wetlands under the hydraulic load of 0.6m ...

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Abstract

The invention discloses a multi-medium biological-ecological cooperative treatment system and a multi-medium biological-ecological cooperative treatment method for sewage in highway affiliated facilities. The system comprises a multi-medium fixed biological bed and a multi-medium tidal flow ecological wetland. The treatment method of the system comprises the following steps: lifting sewage to enter the multi-medium fixed biological bed by virtue of a lift pump, under a micro-power ventilation condition, effectively degrading an organic substance and ammonia nitrogen by virtue of the multi-medium fixed biological bed, enabling the effluent from the multi-medium fixed biological bed to enter the tidal flow artificial wetland to further remove total nitrogen and total phosphorus. The method disclosed by the invention has the advantages that the multi-medium fixed biological bed and the tidal flow artificial wetland are organically combined and respective functional advantages are played to achieve the purposes that the organic substance, ammonia nitrogen, total nitrogen and total phosphorus in the sewage are efficiently removed simultaneously. The system has the advantages of low investment, low running cost, low maintenance and unattended operation, basically no residual sludge is produced and the deep nitrogen and phosphorus removal and recycling of sewage in highway ancillary facilities can be achieved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a system and method for multi-media biological ecological synergistic treatment of sewage from road ancillary facilities such as service areas, toll stations, maintenance work areas, and management offices. Background technique [0002] Currently, the sewage treatment technologies used in highway service areas mainly include septic tank treatment, biological treatment and ecological treatment. Due to the poor quality of effluent from septic tanks, it is rarely used directly in new service areas. The secondary treatment technology with impact load resistance and high treatment efficiency has become the mainstream. Among them, the biological treatment methods are mainly contact oxidation, SBR and MBR, and the ecological treatment methods are commonly used artificial wetlands and soil infiltration technology. [0003] In 2009, the survey results of high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
Inventor 刘学欣籍国东鲁亚义白雪原孔亚平高硕晗薛铸
Owner CHINA ACAD OF TRANSPORTATION SCI
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