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Nested oxygen-enhanced landscape vertical current artificial wetland

A vertical flow wetland, nested technology, applied in aerobic and anaerobic process treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc. The effect of improving landscape value and improving water quality

Active Publication Date: 2010-05-19
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the shortcomings of the current vertical subsurface flow constructed wetland technology, and provide a nested aerobic landscape vertical flow constructed wetland with small footprint, good treatment effect, high landscape effect and relatively simple maintenance and management.

Method used

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  • Nested oxygen-enhanced landscape vertical current artificial wetland
  • Nested oxygen-enhanced landscape vertical current artificial wetland
  • Nested oxygen-enhanced landscape vertical current artificial wetland

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Such as figure 1 with figure 2 The vertical flow wetland of the present invention consists of descending pool 2, ascending pool 3 and landscape pool 4 sequentially nested from inside to outside. The main body of each pool is a concrete structure with anti-seepage treatment at the bottom to prevent sewage from infiltrating and polluting groundwater. The three pools are distributed in a concentric circle, and the height of the three pools decreases from the inside to the outside. The descending pool 2 is 15cm-20cm higher than the ascending pool 3. The bottom of the descending pool 2 is provided with equidistant holes to make the descending pool 2 communicate with the ascending pool 3, and the height of the peripheral landscape pool 4 is the lowest. A circular perforated aeration tube 7 is laid on the bottom of the descending tank 2, and one end of the aeration tube 7 is connected to the air compressor 5 through the air guide tube 6. The descending pool 2 and the ascending...

Embodiment 2

[0024] Such as Figure 4 As shown, the layout of this embodiment is opposite to that of Embodiment 1. From the inside to the outside of each nesting layer, there are landscape pool 4, ascending pool 3, and descending pool 2. The outermost periphery is descending pool 2, the middle is ascending pool 3, and the interior It is the landscape pool 4, and the internal structure of the descending pool 2 and the ascending pool 3 is the same as that of the first embodiment. The height of the three ponds is gradually reduced from the outside to the inside. The descending pond 2 is 15cm~20cm higher than the ascending pond 3. The upper part of the ascending pond 4 is covered with micro-holes, which is conducive to water discharge. The other structures are the same as in Example 1. The landscape pond 4 is collected and treated The latter water flows out of the pool body through the bottom draft tube 8.

Embodiment 3

[0026] Such as Figure 5 As shown, this embodiment is a landscape application example, and a wetland flowerbed 9 is constructed from the vertical flow wetland of the present invention. This wetland flowerbed 9 is composed of three identical vertical flow wetlands as described in Example 2. The descending pool 2 and the ascending pool 3 are nested together, and the interior is the descending pool 2 and the exterior is the ascending pool 3. The wetland flower bed 9 is provided with a plurality of nested combinations of descending pools 2 and ascending pools 3, a shared landscape pool 4 is set in the middle of the wetland flower bed 9, and a landscape nozzle 10 is provided in the landscape pool 4, and landscape plants are planted on the surface of the flower bed.

[0027] The operation mode of this embodiment is as follows: after sewage enters the descending pool 2, it enters the ascending pool 3 in the reverse direction after being processed, and flows into the landscape pool 4 in ...

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Abstract

The invention provides a nested oxygen-enhanced landscape vertical current artificial wetland. The artificial wetland comprises a downflow tank, an upflow tank and a landscape tank, wherein the downflow tank, the upflow tank and the landscape tank are arranged in a nesting manner, the heights of the three tanks are gradually reduced, the bottoms of the downflow tank and the upflow tank are communicated, at least three layers of substrate packings are paved in the downflow tank and the upflow tank, coarse sands are paved on the top layer, a water outlet groove is arranged on the upper part of the upflow tank, perforated aerator pipes are paved at the bottom of the downflow tank; and landscape plants are planted in the three tanks. The artificial wetland of the invention adopts the concentric nesting structure so as to increase the utilization rate of the land resource; and the effluent of the upflow tank falls into the landscape tank from all around in a high dropping manner and the dissolved oxygen content of the effluent is further increased during the dropping process, thus increasing the water quality of the effluent, promoting the removal of oxygen element in the sewage, improving the landscape value of the wetland system and facilitating that the wetland can be popularized widely.

Description

Technical field [0001] The invention belongs to the technical field of environmental engineering sewage treatment, and specifically relates to a composite oxygen-enhancing landscape vertical flow constructed wetland system. Background technique [0002] The constructed wetland sewage treatment system has the advantages of low capital investment, low operating costs, good effluent quality, and simple maintenance and management. It has been widely used in the treatment of domestic sewage, agricultural runoff and lake pollution prevention. [0003] Constructed wetlands are generally divided into two types: surface constructed wetlands and subsurface constructed wetlands. Compared with surface wetlands, the treatment process of subsurface flow constructed wetlands is less affected by climate, season and other factors, and can effectively prevent the breeding of mosquitoes and flies and the generation of odors in wetlands. Subsurface flow constructed wetlands can be divided into horiz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/32C02F3/30
CPCY02W10/10
Inventor 张建范金林张成禄李一冉徐景涛张金勇李聪
Owner SHANDONG UNIV
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