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Self-cleaning micro-aeration compound constructed wetland sewage treatment system

A technology of sewage treatment system and constructed wetland, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Easy to block and other problems, to achieve the effect of strengthening aerobic-anoxic environment, saving energy consumption and reducing operating costs

Active Publication Date: 2018-02-13
CHONGQING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 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, the filler is easy to block, and the treatment effect on high-concentration sewage is poor.

Method used

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  • Self-cleaning micro-aeration compound constructed wetland sewage treatment system
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  • Self-cleaning micro-aeration compound constructed wetland sewage treatment system

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Embodiment 1

[0048] Embodiment 1 The structure of the sewage treatment system of the present invention is shown in Figure 2 and Figure 3. The self-cleaning micro-aeration composite constructed wetland sewage treatment system includes pretreatment structures 2 connected in sequence by pipelines, self-cleaning micro-aeration vertical folding Flow wetland sewage treatment device 3, lateral subsurface flow constructed wetland sewage treatment device that can realize ANAMMOX denitrification 4, biological observation pond 5.

[0049] The pretreatment structure 2 can be a sedimentation pond or biogas pond, or a natural pond.

[0050] As shown in Figure 4, the self-cleaning micro-aeration vertical baffle wetland sewage treatment device 3 consists of a water distribution area 31, a pool body 36, an aeration pipe, a backwash pipe, a water collection area 34, a packing layer 39 and aquatic plants 38 . Along the flow direction are anaerobic wetlands, carbon oxidation wetlands and short-range nitrific...

Embodiment 2

[0054] Example 2 Sewage treatment using the treatment system of the present invention

[0055] 1. When the system works normally, the implementation method is as follows, and the flow chart is shown in Figure 1:

[0056] Urban sewage enters the pretreatment structure through the system inlet pipe to remove floating solids, suspended solids, sediment and some organic matter with large particle sizes.

[0057] Sewage enters the pretreatment structure from the system inlet pipe, and then is sequentially treated by the self-cleaning micro-aeration vertical deflection wetland sewage treatment device and the ANAMMOX denitrification type lateral subsurface flow constructed wetland sewage treatment device, and then enters the biological observation pond. The tank body of the self-cleaning micro-aeration vertical baffle wetland sewage treatment device is divided into three sections: anaerobic, aerobic and micro-aerobic sections along the direction of water flow. For wetlands and carbo...

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Abstract

The invention belongs to the technical field of sewage treatment, and in particular relates to a self-cleaning micro-aeration compound constructed wetland sewage treatment system and a treatment method. The technical problems to be solved by the invention are that the traditional artificial wetland has low dissolved oxygen, large floor area, easy plugging of fillers, poor treatment effect on high-concentration sewage, and the like. The sewage treatment system of the present invention includes pretreatment structures successively connected by pipelines, a self-cleaning micro-aeration vertical deflection wetland sewage treatment device, an ANAMMOX denitrification type lateral subsurface flow artificial wetland sewage treatment device and a biological observation pond. . The sewage treatment system of the present invention has high treatment efficiency, can adapt to different water quality changes, and has good denitrification effect. The self-cleaning artificial wetland is not easy to be blocked, can be backwashed, and the effluent quality is stable, ensuring long-term stable operation of the wetland system.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a self-cleaning type micro-aeration compound artificial wetland sewage treatment system. 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 the future. It has t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 翟俊胡学斌梅龙跃符礼丹肖海文何强
Owner CHONGQING UNIV
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