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Enhanced carbon-nitrogen synchronous removing system of ecological control type artificial wetland

A technology of constructed wetlands and wetlands, applied in sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problems of low removal rate of COD, ammonia nitrogen and nitrate nitrogen, etc., to enhance the denitrification performance, alleviate the The effect of blocking, prolonging the contact time

Active Publication Date: 2015-08-12
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the traditional constructed wetland system is difficult to achieve synchronous and efficient removal of carbon / nitrogen in the same system, and the removal rate of COD, ammonia nitrogen and nitrate nitrogen is low, and to provide an ecological regulation type constructed wetland enhanced carbon Nitrogen synchronous removal system

Method used

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  • Enhanced carbon-nitrogen synchronous removing system of ecological control type artificial wetland

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specific Embodiment approach 1

[0014] Specific implementation mode 1: The ecologically regulated constructed wetland enhanced carbon and nitrogen synchronous removal system in this embodiment includes a reservoir 1, a water distribution area 4, a wetland primary filling area 5, a wetland secondary filling area 6, and a wetland tertiary filling area 7 , the upper covering area 8 and the catchment area 10, along the direction of water flow, the wetland primary filling area 5, the wetland secondary filling area 6 and the wetland tertiary filling area 7 are arranged in sequence, and the matrix filled in the wetland primary filling area 5 is slow Release carbon source or slag, the matrix filled in the wetland secondary fill area 6 is slow-release carbon source or slag, the matrix filled in the wetland tertiary fill area 7 is gravel or slag, wetland primary fill area 5, wetland secondary fill Area 6, wetland tertiary fill area 7 is separated by a partition 2, and there is a water hole 2-1 on the partition 2, and t...

specific Embodiment approach 2

[0017] Embodiment 2: This embodiment differs from Embodiment 1 in that the thickness of the matrix filled in the wetland primary fill area 5 , the wetland secondary fill area 6 and the wetland tertiary fill area 7 does not exceed 40 cm.

specific Embodiment approach 3

[0018] Embodiment 3: This embodiment differs from Embodiment 2 in that the thickness of the matrix filled in the wetland primary fill area 5 , the wetland secondary fill area 6 and the wetland tertiary fill area 7 is 30-38 cm.

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Abstract

The invention relates to an enhanced carbon-nitrogen synchronous removing system of an ecological control type artificial wetland, relating to the technical field of sewage treatment and aiming at solving the following problems in a traditional artificial wetland system: synchronous and high-efficiency removing of carbon / nitrogen is difficultly realized in the same system and the removing rates of COD, ammonia nitrogen and nitrate nitrogen are low. A first-stage wetland filling area, a second-stage wetland filling area and a third-stage wetland filling area are sequentially arranged in an ecological control type artificial wetland system along the water flowing direction; matrixes fill the various filling areas; the filling areas are separated through partition walls; water through holes are formed in the partition walls; an upper coverage area is over the filling areas; plants are planted on the upper coverage area; and a water distribution area and a water collection area are at two sides of the upper coverage area, respectively. By means of mixed operation of horizontal flow and vertical flow of wastewater in the enhanced carbon-nitrogen synchronous removing system of the ecological control type artificial wetland disclosed by the invention, the contact time of substrates and the matrixes is prolonged effectively; and synchronous removing of carbon and nitrogen is enhanced.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a horizontal underflow baffle artificial wetland system using agricultural biomass waste as a slow-release carbon source. Background technique [0002] At present, the traditional sewage treatment process has become the main technology for the vast majority of urban sewage treatment in my country, and has played a certain role in controlling urban water environment pollution. As well as the low level of operation and management technicians, the promotion of sewage treatment projects in rural areas and small towns has encountered huge resistance; at the same time, the traditional sewage treatment process has too much investment and high water treatment costs. The level requirements are strict, so it is not suitable for the actual situation in rural areas of our country, and direct discharge will inevitably lead to water pollution. Constructed wetland ecological treatment t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 李怀阎百兴王莉霞祝惠欧洋栾兆擎程龙
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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