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Method of carrying out sewage treatment by using ecology filter tank and earthworm tower type ecology filter tank

An ecological filter and sewage treatment technology, applied in the direction of biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve problems such as limitations, and achieve increased hydraulic retention time, good Treatment effect, good effect of sewage treatment

Inactive Publication Date: 2006-01-11
NANJING UNIV
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Problems solved by technology

[0013] First, the activities of earthworms are generally above 30cm above the surface of the soil-based filter material layer. Therefore, the area where the synergy between earthworms and microorganisms is used in the filter is limited.

Method used

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  • Method of carrying out sewage treatment by using ecology filter tank and earthworm tower type ecology filter tank
  • Method of carrying out sewage treatment by using ecology filter tank and earthworm tower type ecology filter tank
  • Method of carrying out sewage treatment by using ecology filter tank and earthworm tower type ecology filter tank

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] Earthworm tower type ecological filter tank of the present invention, as figure 2 , shown in Fig. 3, comprise three-layer filter tank, uppermost filter tank 7, middle layer filter tank 8, bottom layer filter tank 9, filter bed layer 2 and support layer are provided with filter bed layer 2 and supporting layer successively in the pond body of filter tank from top to bottom , the upper end of the uppermost filter tank 7 is provided with a water distributor 1, and the water distributor 1 is provided with a water inlet; the lower end of the filter tank 9 of the lowermost floor is provided with a drainage layer, and the drainage layer is provided with a water outlet. This embodiment adopts three layers of filter tanks arranged in a tower style, and each layer of filter tanks can also be called a tower layer. There is a certain interval 10 between each layer of filte...

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Abstract

The method of sewage processing has high nitrogen-phosphorus disloading ratio. It includes following process steps: pretreatment is to make sewage will be processed pass through grille to get rid of impurities; precipitating treatment is to do precipitating to the pretreated sewage in sedimention tank to get rid of grits; ecological filtering treatment is to send the sewage precipitation processed into worm lizard tower-type ecological filter to make the processed sewage reaching standard.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a sewage treatment method using an ecological filter and a special earthworm tower ecological filter. Background technique [0002] Vermibiofi1ter is a treatment technology for domestic sewage that was first developed in France and Chile in recent years. 【1-4】 . This technology is designed based on the ecological functions of earthworms such as improving soil water permeability and promoting the decomposition and transformation of organic matter. [0003] The use of biological filters to treat organic sewage is a commonly used sewage treatment method. In this process, the biological purification of water is combined with physical filtration, that is, the sewage is first treated by microbial aerobic and anaerobic fermentation in the water to degrade and transform the organic matter in it, and then it is filtered to achieve the purpose of sewage purification. Purpose. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32C02F9/02
Inventor 苏东辉郑正罗兴章王勇帖靖玺孔刚唐登勇胡文勇
Owner NANJING UNIV
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