Reinforced denitrification dephosphorization pretreatment method and device for micropolluted water treatment artificial wetland

A technology of artificial wetland, denitrification and phosphorus removal, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of low efficiency of nitrogen and phosphorus removal, and achieve operational results Effects of stability, reduction of processing load, and improvement of purification efficiency

Active Publication Date: 2013-11-27
SHENZHEN ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

[0003] The purpose of the present invention is to provide an enhanced denitrification and phosphorus removal pretreatment method and device for micro-polluted water treatment constructed wetlands in view of the low efficiency of denitrification and phosphorus removal in constructed wetland pretreatment devices used for advanced treatment

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  • Reinforced denitrification dephosphorization pretreatment method and device for micropolluted water treatment artificial wetland
  • Reinforced denitrification dephosphorization pretreatment method and device for micropolluted water treatment artificial wetland
  • Reinforced denitrification dephosphorization pretreatment method and device for micropolluted water treatment artificial wetland

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Embodiment 1

[0031] Embodiment 1, in order to achieve the purpose of strengthening nitrogen and phosphorus removal and reducing pollution load, this embodiment adopts the following technical measures:

[0032] In a treatment pool, use walls to enclose a rectangular treatment area, such as figure 1 As shown, the peripheral wall is called the pool wall 1, which is divided into 2 groups of 6 grids in the pool wall 1, and each grid is a relatively independent treatment area, which can be operated alternately, and each grid is a plant floating bed from top to bottom. Layer 2, microbial bed packing layer 3, packing layer 4 with high adsorption and high reactive ion content, perforated filter plate supporting layer 5 such as Figure 5 or Figure 6 shown. The filler layer 4 with high adsorption and high ion content can be further divided into three layers: zeolite filler layer, steel slag filler layer and limestone filler layer.

[0033] The water flow is purified step by step from top to botto...

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Abstract

The invention discloses a reinforced denitrification dephosphorization pretreatment method and device for micropolluted water treatment artificial wetland. The method is suitable for advanced treatment of micropolluted lake (river) water, sewage treatment plant tail water and the like. The device is composed of a plant floating bed layer, a microbial bed filler, a filling granular layer and a supporting layer from top to bottom, and is provided with a back flush plant. The device disclosed by the invention fully utilizes the space in the device, and the plant-microbe can intercept, adsorb, absorb, enrich and decompose part of pollutants; the zeolite-steel slag-limestone filler combination can effectively remove nitrogen, phosphorus and other pollutants in water, thereby ensuring that all the water-quality indexes of the effluent water of the subsequent artificial wetland can achieve the related high-quality water application standard; and the back flush process is beneficial to enhancing the purification efficiency and prolonging the service life of the device.

Description

technical field [0001] The present invention relates to the field of sewage treatment in environmental engineering, in particular to a pretreatment method and device for enhanced denitrification and phosphorus removal in artificial wetlands for micro-polluted water treatment, which is suitable for treating micro-polluted water: tail water of sewage treatment plants, micro-polluted lakes (rivers) water etc. Background technique [0002] With the rapid development of industrialization and urbanization in our country, the pollutants discharged by people in the production and living process have intensified the pollution of the water environment, and the pollutants in the water are increasing. Degradation and long-lasting effect lead to eutrophication of water body, and algal blooms occur from time to time. According to the law of minimum factors: Any specific factor lower than the minimum amount required by a certain organism is the fundamental factor that determines the survi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 王小江莫凤鸾林武廖波朱宝玉刘洋何艺林静
Owner SHENZHEN ACAD OF ENVIRONMENTAL SCI
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