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Multilevel compound coupling artificial wetland system and its application

A constructed wetland system and wetland technology, applied in water/sewage multi-stage treatment, sustainable biological treatment, water/sludge/sewage treatment, etc., to achieve enhanced purification effect, improved environmental carrying capacity, and concise design

Inactive Publication Date: 2013-05-22
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem to be solved in the present invention is to improve the cleaning efficiency by optimizing the combination and multi-stage treatment, constructing a composite coupled artificial wetland system and its application in the treatment of industrial wastewater and domestic sewage

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  • Multilevel compound coupling artificial wetland system and its application
  • Multilevel compound coupling artificial wetland system and its application
  • Multilevel compound coupling artificial wetland system and its application

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Embodiment Construction

[0025] The construction method of the multi-level composite coupling constructed wetland system includes construction, filling matrix, planting and operation and maintenance, that is, the construction of the wetland bed. First, the outer and inner walls of the wetland bed are built with cement, sand and bricks, and then artificially In the wetland, the communication pipes between water distribution, water collection pipes, water pumps and wetland beds at all levels are set; at the same time, flow regulators including flow control valves and flow meters are installed in front of each corresponding wetland bed, and then installed in the internal part of the constructed wetland. Lay the matrix composed of pebbles, ceramsite, and gravel that has been cleaned in advance; plant iris or water onion on the matrix; adjust the flow regulators in front of the reservoir and each level of wetland system to combine the two types of monomers Wetland beds are combined in a specific way to form...

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Abstract

The invention belongs to the technical field of sewage treatment, and concretely relates to a multilevel compound coupling artificial wetland system and its application. The system comprises a monomer wetland bed subsystem, a hydrodynamic modulation subsystem and a wetland coupling subsystem. A monomer wetland bed is divided into an underflow monomer wetland bed and a surface flow monomer wetland bed, three matrix layers are arranged in the monomer wetland bed, and water plants are planted in matrixes; and the hydrodynamic modulation subsystem comprises a water distribution and collection system. The underflow monomer wetland bed and the surface flow monomer wetland bed form the main body of the coupling subsystem, and different treatment modes comprising series connection, parallel connection, series-parallel connection and the like can be formed through opening different adjustment valves. Different types of sewage treatment units are formed through constructing different types of wetland beds, and the sewage treatment units are optimally combined to form the system, and sewage is treated in a multi-level grading manner to improve the sewage purifying capability of the artificial wetland.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a multi-stage composite coupled artificial wetland system and its application. Background technique [0002] According to patent and literature search, most of the sewage treatment in constructed wetlands is limited to a single wetland type. The composite vertical flow artificial wetland aeration system invented by the Institute of Hydrobiology, Chinese Academy of Sciences (Patent No. 200810197811), is characterized by the use of an emptying pipe at the bottom to optimize the aeration conditions for intermittent aeration to improve the denitrification effect, and use Vertical flow wetlands purify sewage. The Segmented Free Surface Flow Constructed Wetland Treatment Method and System (Patent No. CN200410062269.9) invented by Beijing Normal University transforms the existing river into a Segmented Free Surface Flow Constructed Wetland, allowing surface runoff ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/32C02F3/34
CPCY02W10/10
Inventor 安树青任丽君汪晓燕殷盛来王庆夏露
Owner NANJING UNIV
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