Alpine area contact oxidation-artificial wetland combined treatment system and method thereof for treating rural domestic sewage

A technology for artificial wetlands and alpine regions, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as inability to use in alpine regions, strong seasonal influence, etc., to achieve heat preservation Good performance, reduced energy consumption, and the effect of preventing heat loss

Inactive Publication Date: 2011-07-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problem that the existing ecological engineering method is greatly affected by the season and cannot be used in the alpine region, and provides a contact oxidation-constructed wetland combined treatment system in the alpine region and a method for treating rural domestic sewage

Method used

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  • Alpine area contact oxidation-artificial wetland combined treatment system and method thereof for treating rural domestic sewage
  • Alpine area contact oxidation-artificial wetland combined treatment system and method thereof for treating rural domestic sewage
  • Alpine area contact oxidation-artificial wetland combined treatment system and method thereof for treating rural domestic sewage

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specific Embodiment approach 1

[0009] Specific implementation mode one: (see attached figure 1 And attached figure 2 ) The contact oxidation-constructed wetland combination treatment system in the alpine region of this embodiment is sequentially composed of a regulating pond, a primary sedimentation pond, a biological contact oxidation pond, a secondary sedimentation pond, a horizontal subsurface flow artificial wetland and a stabilization pond, wherein the regulating pond, the primary sedimentation pond and the secondary settling tank are built underground, and the tops of the regulating tank, primary settling tank and secondary settling tank are 1.60m to 2.00m above the ground; the biological contact oxidation tank is built in a room with a temperature of 10°C to 14°C, and the horizontal subsurface flow artificial wetland is added. The greenhouse is covered, and the temperature in the greenhouse is maintained at 8°C to 12°C. The horizontal subsurface flow artificial wetland is composed of the first secti...

specific Embodiment approach 2

[0011] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the bottom of the first section of the artificial wetland bed and the second section of the artificial wetland bed are laid with geotextiles, and the thickness of the top of the geotextiles is 0.25m ~ 0.35m The yellow clay layer has a gradient of 0.0015-0.0025 along the water flow direction, and the upper part of the yellow clay layer is a matrix layer with a thickness of 0.6m-0.8m. The matrix is ​​composed of gravel and slag in a volume ratio of 1:1- 1.3 It is formed by mixing, and above the base layer is a humus layer with a thickness of 0.5m to 0.6m, and emergent plants are planted in the humus. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0012] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the bottom of the first section of the constructed wetland bed area and the second section of the constructed wetland bed area are laid with geotextiles, and the top of the geotextiles is a 0.30m thick The yellow clay layer, the slope of the yellow clay layer along the water flow direction is 0.0020, the upper part of the yellow clay layer is the matrix layer, the thickness of the matrix layer is 0.7m, the matrix is ​​composed of gravel and slag in a volume ratio of 1:1.2, in the matrix layer Above is a humus soil layer with a thickness of 0.55m, and emergent plants are planted in the humus soil. Others are the same as in the first embodiment.

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Abstract

An alpine area contact oxidation-artificial wetland combined treatment system and a method thereof for treating rural domestic sewage relate to the system and method of sewage treatment. The invention solves the technical problem that the existing ecological engineering method is largely affected by reason and can not be used in the alpine area. The system of the invention consists of an adjusting tank, a primary settling tank, a biological contact oxidation tank, a secondary settling tank, a horizontal subsurface flow artificial wetland and a stabilization pond which are connected in turn, wherein the adjusting tank, the primary settling tank and the secondary settling tank are built underground, and the biological contact oxidation tank and the horizontal subsurface flow artificial wetland are built indoors. The method is as follows: the rural domestic sewage is treated by the adjusting tank, the primary settling tank, the biological contact oxidation tank and the subsurface flow artificial wetland in turn and enters the stabilization pond to complete the treatment. The effluent can be used as farmland irrigation water. The system and method is suitable for the treatment of the rural domestic sewage in the alpine areas.

Description

technical field [0001] The present invention relates to systems and methods for sewage treatment. Background technique [0002] The treatment methods for domestic sewage include activated sludge method and ecological engineering method. Although the traditional activated sludge method can achieve better treatment effect, it has high energy consumption, high sludge output and high treatment cost. Disadvantages of inconvenient operation and management; ecological engineering methods, such as the Chinese patent publication number CN101863584A, for the sewage treatment method disclosed by the biological contact oxidation + artificial wetland joint treatment system of gray water in the community, its biological contact oxidation pool and artificial wetland are both Built in an open-air environment, it is greatly affected by seasonality. When the temperature is lower than 10°C, especially in winter, the treatment effect of the system is difficult to guarantee, which limits the use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 高大文马放胡奇
Owner HARBIN INST OF TECH
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