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Vertical flow constructed wetland sewage treatment device and system

A sewage treatment device and vertical flow wetland technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, anaerobic digestion treatment, etc., can solve the inability to achieve real-time adjustment and precise control of water level, and total nitrogen removal effect Limited, affecting the overall operation of the wetland system and other issues

Pending Publication Date: 2021-06-08
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The oxygen content level inside the constructed wetland is closely related to the water level of the wetland. However, at present, most constructed wetlands cannot realize real-time adjustment and precise control of the water level, which affects the overall operation effect of the wetland system, especially the removal effect of total nitrogen is limited.

Method used

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  • Vertical flow constructed wetland sewage treatment device and system
  • Vertical flow constructed wetland sewage treatment device and system
  • Vertical flow constructed wetland sewage treatment device and system

Examples

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Embodiment 1

[0032] refer to Figure 1 to Figure 6 As shown in , this embodiment provides a vertical flow constructed wetland sewage treatment device (hereinafter referred to as sewage treatment device), including a vertical flow wetland unit 10 and a water level adjustment unit 20; a filler matrix 30 is arranged in the vertical flow wetland unit 10, and the filler A water distribution pipe 40 for distributing water to the packing matrix 30 is arranged above the matrix 30 , and a water collection pipe 50 is arranged at the bottom of the packing matrix 30 .

[0033] Among them, refer to figure 1 and Figure 6 As shown in , the filler matrix 30 includes a surface layer 31, an unsaturated layer 32, and a saturated layer 33 stacked from top to bottom, and the thickness ratio of the surface layer 31, the unsaturated layer 32, and the saturated layer 33 is 3:5:8 The filler particle diameters of the surface layer 31, the unsaturated layer 32, and the saturated layer 33 gradually increase from t...

Embodiment 2

[0110] refer to Figure 1 to Figure 6 As shown in , the present disclosure also provides a vertical flow constructed wetland sewage treatment system, including a sewage purification device 90 and a vertical flow constructed wetland sewage treatment device.

[0111] Wherein, the sewage purification device 90 has a water inlet, and the water inlet is connected with the vertical flow artificial wetland sewage treatment device, so as to purify the sewage discharged from the accommodating chamber 22 .

[0112] In addition, the sewage purification device 90 may have various implementation forms, and it only needs to be able to deeply purify the sewage treated by the vertical flow constructed wetland sewage treatment device.

[0113] Exemplarily, the sewage purification device 90 is a surface flow constructed wetland sewage treatment device (hereinafter referred to as a surface flow constructed wetland). The water inlet of the surface flow constructed wetland is provided with an ecol...

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Abstract

The invention relates to a vertical flow constructed wetland sewage treatment device and system. The vertical flow constructed wetland sewage treatment device comprises a vertical flow wetland unit and a water level adjusting unit, a filler matrix is arranged in the vertical flow wetland unit, a water distribution pipe is arranged above the filler matrix, and a water collecting pipe is arranged at the bottom of the filler matrix; a partition wall is arranged in the adjusting unit, a containing cavity is formed between the partition wall and the side wall of the vertical flow wetland unit, and one end of the water collecting pipe penetrates through the side wall of the vertical flow wetland pool and extends to the bottom of the containing cavity, so that sewage treated by the filler matrix flows into the containing cavity; an overflow structure for adjusting the highest liquid level of the vertical flow wetland is arranged on the partition wall, so that the highest liquid level of the vertical flow wetland is not smaller than the top surface of the filler matrix, or the highest liquid level of the vertical flow wetland is flush with the top surface of the saturated layer of the filler matrix. The highest liquid level in the filler matrix can be adjusted through the overflow structure, and a microbial nitrification-denitrification environment is created so that deep nitrogen removal of tail water is realized.

Description

technical field [0001] The disclosure relates to the technical field of sewage treatment, in particular to a vertical flow artificial wetland sewage treatment device and system. Background technique [0002] As a collection and treatment unit of urban domestic sewage and industrial wastewater, sewage treatment plants have a significant effect on the reduction of organic matter, nitrogen, phosphorus and other pollutants in sewage. However, after upgrading and transformation, the effluent quality of most urban sewage treatment plants in my country is still much higher than the Class V standard of the "Environmental Quality Standards for Surface Water" (GB3838-2002), especially the total nitrogen (TN) is still at a high level. The direct discharge of tail water is still an important source of pollution to surrounding water bodies. [0003] Constructed wetland is a sewage ecological treatment technology that has emerged in recent years. It can be used for deep purification of ta...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/28
CPCC02F3/327C02F3/28
Inventor 张琼华刘晓源吴亚东
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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