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Sewage treatment device and method for self-cleaning type micro-aeration vertical baffled wetland

A sewage treatment device, self-cleaning micro technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of low dissolved oxygen, easy plugging of fillers, and large footprint and other problems to achieve the effect of reducing the accumulation of minerals, reducing the probability of clogging and prolonging the service life

Active Publication Date: 2016-01-13
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the dissolved oxygen in the traditional constructed wetland is relatively low, the occupied area is large, and the filler is easy to block

Method used

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  • Sewage treatment device and method for self-cleaning type micro-aeration vertical baffled wetland
  • Sewage treatment device and method for self-cleaning type micro-aeration vertical baffled wetland
  • Sewage treatment device and method for self-cleaning type micro-aeration vertical baffled wetland

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Embodiment 1

[0029] Embodiment 1 The structure of the device of the present invention

[0030] see figure 1 , figure 2 , image 3 with Figure 4 , The device of the present invention includes a water distribution area 1, a pool body 2, a water collection area 3, an inlet pipe 4, an outlet pipe 5, a valve 17, a backwash pipe 11, an aeration pipe, a packing layer 6, aquatic plants 7, and the like. The water inlet pipe 4 and the water outlet pipe 5 are respectively installed at the bottom of the water distribution area 1 and the water collection area 3. A valve 17 is installed on the water inlet pipe 4 and the water outlet pipe 5. The water outlet of the water distribution area 1 adopts the overflow method, and the pool body The outlet water of 2 flows into the catchment area 3 by way of overflow.

[0031] The pool body is composed of multi-level vertical baffle wetlands with different treatment functions connected in series. Along the water flow direction, there are anaerobic wetlands, ...

Embodiment 2

[0038] Embodiment 2 adopts the treatment system of the present invention to carry out sewage treatment

[0039] 1. When the system works normally, the implementation method is as follows:

[0040] Before the pool body 2 runs, the valves 17 on all backwash pipes are closed earlier. After a certain pre-treatment, the sewage flows into the water distribution area 1 through the water inlet pipe 4, and then flows from the water distribution area 1 into the pool body 2 filled with fillers with a depth of 700-1500 mm through the overflow method. Under the action of the retaining wall 19, the sewage passes up and down in the pool body 2, avoiding the stagnant water area. Under the combined action of the substrate, plants, water bodies, microorganisms and animals, the pollutants are reduced, and finally flow into the catchment area 3 through overflow, and finally discharged through the outlet pipe 5 .

[0041] When the sewage passes through the pool body 2, since the filler particle ...

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Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment device and a sewage treatment method for a self-cleaning type micro-aeration vertical baffled wetland. The invention discloses the sewage treatment device for the self-cleaning type micro-aeration vertical baffled wetland. The sewage treatment device consists of a water distribution region, a tank body and a water collecting region; to-be-treated sewage flows into the water distribution region through a water inlet tube, and then flows from the distribution region into the tank body by taking an overflow; outlet water treated by the tank body flows into the water collecting region by taking an overflow; and the tank body is formed by connecting a plurality of stages of vertical baffled wetlands with different treatment functions in series, in a water flow direction, namely an anaerobic wetland, a carbon oxidization wetland and a short-cut nitrification-denitrification wetland. The invention further provides a sewage treatment method by adopting the device. According to the device provided by the invention, the tank body is divided into an anaerobic section, an aerobic section and a micro-aerobic section in the water flow direction, and efficient removal of carbon pollutants and nitrogen pollutants can be realized; and the problems that a conventional constructed wetland is too low in dissolved oxygen, relatively great in land area, easy to block by stuffing and difficult to clean after being blocked are solved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a self-cleaning type micro-aeration vertical baffle wetland sewage treatment device and method. Background technique [0002] Constructed wetland is a sewage treatment technology that strengthens its purification ability through artificial construction and supervision and control based on the principle of natural wetland purification of sewage. It is a complex system composed of a permeable substrate, plants, water bodies, aerobic or anaerobic microbial populations and animals. After the sewage is treated in the constructed wetland, including biodegradation, filtration, precipitation and adsorption, the organic compounds, suspended solids, some nitrogenous compounds, phosphorus and pathogenic bacteria in the sewage have been greatly reduced. [0003] Constructed wetland treatment technology is a popular treatment technology for water quality improvement in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 何强翟俊肖海文胡学斌肖劲松符礼丹
Owner CHONGQING UNIV
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