Method for degrading pollutants in point-source-polluted water by using submerged plants and microbial film digestion bed

A technology of microbial membranes and submerged plants, applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc.

Inactive Publication Date: 2020-10-23
SHANGHAI NAN YANG MODEL HIGH SCHOOL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for degrading pollutants by using submerged plants + microbial membrane digestion bed for point source polluted waters, especially polluted waters close to V-class water and inferior V-class water

Method used

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  • Method for degrading pollutants in point-source-polluted water by using submerged plants and microbial film digestion bed
  • Method for degrading pollutants in point-source-polluted water by using submerged plants and microbial film digestion bed
  • Method for degrading pollutants in point-source-polluted water by using submerged plants and microbial film digestion bed

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Embodiment Construction

[0036] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0037] The invention provides a method for degrading pollutants in point source polluted waters by using a submerged plant digestion bed. figure 1 with figure 2 , its specific structure and method are as follows.

[0038] The baffle plate 6 forms a basic degradation unit, which is placed in the point source polluted water area, and the rain and sewage mixed flow discharge port 7 is connected through the front device 8. The filter unit is set in the front device 8 to remove solid impurities. Filter properly to prevent mixing into the internal waters of the degradation unit. In the space enclosed by the baffle plate 6, submerged plants 10 are planted as attachment bases for cultivating microorganisms. In order to control the height of the water level 11, a water outlet / overflow 9 is provided.

[0039] A plurality of baffles 3 ar...

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Abstract

The invention discloses a method for degrading pollutants in point-source-polluted water by adopting submerged plants and a microbial film digestion bed. The method comprises the following steps: 1, collecting a locally naturally grown or domesticated stain-resistant submerged plant variety as a seedling, planting the seedling in a water area defined by a fence type digestion unit, culturing a microbial film in a natural or human intervention environment by taking a submerged plant as a microbial attachment substrate; 2, determining the generation of the microbial film; 3, starting a self-circulation system to start a water body backflow state in the digestion unit, and conveying beneficial bacteria from the microbial film to the water area defined by the fence type digestion unit as extensive as possible by virtue of water body backflow, wherein a self-circulation water flow speed is 2-10 cm/s; and 4, constructing living environmental oxygen bacteria under the assistance of an aeration subsystem, maintaining aeration when the content of dissolved oxygen in water is close to a critical point for 2-4 hours, then stopping aeration, and starting the aeration subsystem again when the content of dissolved oxygen is reduced to 70-80% of a saturation value.

Description

technical field [0001] The present invention relates to the technical field of environmental protection, in particular to a kind of use of submerged plants + self-generated microbial film digestion bed (in the text or simply referred to as "submerged plant digestion bed") to treat point source polluted waters or water bodies, especially close to A method for degrading and treating pollutants in class V water and inferior class V water. Background technique [0002] In the urban sewage system, rivers are often polluted by mixed rainwater and sewage. Although there is a technical idea of ​​incorporating rainwater pipes into sewage treatment plants, it cannot be implemented due to the large volume of water. On the other hand, the water affairs department has also tried to use biological floating bed technology to treat sewage at the outlet where the rain and sewage are mixed. However, due to factors such as the inability to concentrate the drainage to the floating bed and the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/34C02F3/30
CPCC02F3/30C02F3/32C02F3/34C02F2103/007C02F2203/004
Inventor 姚天予吴国华李相驿沈乐阳吴汶聪吴建强吴彦君陈俣昊章佩翎
Owner SHANGHAI NAN YANG MODEL HIGH SCHOOL
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