CN201660496U

CN201660496U - Self-purification biological filter

Info

Publication number: CN201660496U
Application number: CN2009200159474U
Authority: CN
Inventors: 庞景宾
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-28
Filing date: 2009-07-28
Publication date: 2010-12-01
Anticipated expiration: 2019-07-28

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a self-purification biological filter. A filter body of the utility model is divided into an upper part and a lower part. The upper part is a biofiltration part and the lower part is a sedimentation and clarification part. One end of the filter body is provided with a water inlet pipe system, while the other end thereof is provided with a weir which can drain water. A plurality of guide plates are arranged between a water inlet end and a water outlet end. The biofiltration part is internally provided with a separation wall to form branch chambers of multi-chamber structure, which are communicated mutually. The lower parts of the branch chambers are respectively provided with an aeration pipe system. The bottom of the sedimentation and clarification part is provided with a sludge drain pipe. The self-purification biological filter of the utility model is suitable for a sewage biochemical treatment self-purification device, can remove pollutants, such as organic matter, ammonia nitrogen and the like, has the obvious characteristics of simple structure, backwashing avoidance and simple and convenient backwashing operation, is suitable for wide popularization and application and has better market application prospect.

Description

The self-cleaning biological filter

Technical field

The utility model relates to a kind of technical field of sewage treatment, relates in particular to a kind of self-cleaning biological filter.

Background technology

Biological filter or title BAF are the biological treatment equipment that is used for sewage disposal, have efficient, reliable characteristics, but there is the filler pickup in domestic present employed biological filter, and susceptible to plugging problem needs frequent backwash, just can guarantee works better.But owing to reasons such as biological mud viscositys, also exist the problem of backwash difficulty, need a large amount of air, water associating backwash.So just cause to consume greatly, therefore the shortcoming and defect part of troublesome poeration, has also limited its application.

The utility model content

The problem that the utility model exists at prior art, purpose provides a kind of self-cleaning biological filter, and this filter tank has the backwash of avoiding, or the easy distinguishing feature of backwash operation.

The utility model is realized by the following technical solutions:

Self-cleaning biological filter, pond body are divided into two portions up and down, and top is biological filtration fraction, and the bottom is precipitation clarification part; The Chi Tiyi end is provided with into water piping, but the other end is provided with the mill weir of draining, and feed-water end is provided with some flow deflectors in the middle of the water side; Be provided with divider wall in the biofiltration part, make it form the locellus of the multicell structure of up/down perforation; The locellus bottom is respectively equipped with the aeration piping; Precipitation clarification part bottom is provided with shore pipe.

Described precipitation clarification part can be flat, the awl end.

Described pond body can be circular, rectangle, and monomer available or many bodies also can be tank structures.

Be provided with filler in the described insulated chamber.

Described filler is the particle media material, can be the natural and synthetic materials of haydite, volcanics, shale pulverized particles, swash plate and other etc., also floating stuffing.

The utility model is applicable to the sewage biochemical treatment from cleaning device, can remove pollutents such as organism, ammonia nitrogen from sewage.Have simple in structure, avoid backwash, and the easy distinguishing feature of backwash operation.Be fit to large-scale popularization and use, have better market application.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of the another embodiment of the utility model;

Fig. 3 is the two dimensional structure synoptic diagram of Fig. 1;

Fig. 4 is the two dimensional structure synoptic diagram of Fig. 2.

Among the figure: pond body 1, filler 2, water inlet piping 4, mill weir 5, flow deflector 6, blast main 7, divider wall 8, biofiltration part 11, precipitation clarification part 12,

insulated chamber

1a, 1b, 1c,

aeration piping

3a, 3b, 3c.

Embodiment

Below embodiment of the present utility model is described in detail in conjunction with the accompanying drawings, but not limit by embodiment.

Embodiment 1:

As Fig. 1, shown in Figure 3, Fig. 1 is a structural representation of the present utility model; Fig. 3 is the two dimensional structure synoptic diagram of Fig. 1.

Divider wall 8 is set in the pond, makes its insulated chamber 1a that forms the multicell structure of up/down perforation, 1b; Insulated chamber 1a is provided with filler 2 or vacant in the 1b, blast main 7 is located in each insulated chamber.Filler 2 can be haydite, volcanics, shale pulverized particles, swash plate and other natural and synthetic materialss, and also floating stuffing, chemical property is stable, has sufficient intensity, and its surface can attached microbial; Insulated chamber 1a, the 1b bottom is respectively equipped with aeration piping 3a, 3b; Precipitation clarification part 12 bottoms are provided with shore pipe.

In the specific implementation, precipitation clarification part 12 described in the utility model can be that form flat, the awl end all can.Pond body 1 can be circular, rectangle, monomer available or many bodies.Filler 2 is particle media materials, can select for use haydite, volcanics, shale pulverized particles, swash plate and other natural and synthetic materials etc. all can, other is with embodiment 2.

The principle of work of filter tank self-cleaning technology is as follows:

1, sewage enters bottom, pond body 1 filter tank precipitation clarification part 12 through water inlet piping 4, flows upward through the suspension clear layer, and suspended substance is precipitated out therebetween, and contacts biological sludge in advance, the beginning scavenging process.

The separation cell of 2, biofiltration part 11 is insulated chamber 1a, 1b, and the aeration piping 3a among the 1c in the chamber at least 1,3b, 3c such as 3a implement aeration, and under the aeration effect, this chamber sewage is full of air, and proportion reduces.Adjacent insulated chamber water flows into aeration piping cell bottom downwards under the gravitational difference effect, thereby to the upper reaches, gets back to original insulated chamber, forms circulating water flow.

3, in working cycle, effluent stream is obtaining biopurification under the microbial process through filler 2 on the filler 2, and microorganism is that mud accumulates in filler 2 simultaneously.When sludge accumulation was arrived to a certain degree, biochemical action descended, and flow resistance increases.

4, switch aeration piping 3a and carry out aeration to other insulated chamber such as aeration piping 3b.At this moment, insulated chamber 1b water (flow) direction is changed into upwards and is flowed, and other insulated chamber water (flow) direction changes into downwards.The effect of process mesophytization is carried out as usual, and decide on water quality switching time at interval, general 2-8 hour.

5, the change of water (flow) direction produces two kinds of effects: the one, and the filter tank oxygenation state changes, and original oxygen enrichment zone becomes anoxic, and original anoxic zones becomes oxygen enrichment, and this alternating state provides nitrification and denitrification favourable condition; The 2nd, adhere to excessive mud on the filler and come off, make filler obtain backwash and regeneration.

6, the mud that comes off at precipitation settling section precipitation separation, is got rid of through shore pipe.

7, under water inlet promotes, purify waste water and discharge through effluent weir 5.Sewage forms spiral plug-flow process at the circulating water flow that forms under the above-mentioned aeration under the effect of flow deflector 6 therebetween, guarantees reaction process fully with stable, specially backwash process and equipment.

Aeration mode forms vertical circulating water flow, and can regularly switch and change the direction of a stream of water.Produce two kinds of effects: the one, the filter tank oxygenation state changes, and original oxygen enrichment zone becomes anoxic, and original anoxic zones becomes oxygen enrichment, and this alternating state provides nitrification and denitrification favourable condition; The 2nd, adhere to excessive mud on the filler and come off, make filler obtain backwash and regeneration.The mud that comes off separates at circulating water flow low spot bend place, falls into settling tank.Realize self-cleaning in the production process.

Embodiment 2:

The utility model self-cleaning biological filter is used for removing from sewage pollutents such as organism, ammonia nitrogen.As Fig. 2, shown in Figure 4, Fig. 2 is the structural representation of the another embodiment of the utility model; Fig. 4 is the two dimensional structure synoptic diagram of Fig. 2.

Sewage purifier self-cleaning described in the utility model biological filter is provided with a pond body 1, and this pond body also can be a tank body etc.Be provided with filler 2 within it, aeration piping 3 is used for aeration, supplies with microorganism and uses oxygen.Chi Tiyou advances the water inlet piping 4 of water distribution piping system, effluent weir 5 and pipe duct system.

Pond of the present utility model body 1 is divided into two portions up and down, and top is biological filtration fraction 11, and the bottom is precipitation clarification part 12; Body 1 one ends in pond are provided with into water piping 4, but the other end is provided with the mill weir 5 of draining, and feed-water end is provided with some flow deflectors 6 in the middle of the water side; Be provided with divider wall 8 in the biofiltration part 11, make its insulated chamber 1a that forms the multicell structure of up/down perforation, 1b, 1c; Insulated chamber 1a, 1b, be provided with in the 1c filler 2 or vacant all can, blast main 7 is located in each insulated chamber.Filler 2 is particle media materials, can be haydite, volcanics, shale pulverized particles, swash plate and other natural and synthetic materialss, also floating stuffing.Chemical property is stable, has sufficient intensity, and its surface can attached microbial.Insulated chamber 1a, 1b, the 1c bottom is respectively equipped with

aeration piping

3a, 3b, 3c; Precipitation clarification part 12 bottoms are provided with shore pipe.

Claims

1. self-cleaning biological filter is characterized in that: pond body (1) is divided into two portions up and down, and top is biological filtration fraction (11), and the bottom is precipitation clarification part (12); Body (1) one end in pond is provided with into water piping (4), but the other end is provided with the mill weir (5) of draining, and feed-water end is provided with some flow deflectors (6) in the middle of the water side; Be provided with divider wall (8) in the biofiltration part (11), make it form the insulated chamber (1a, 1b or 1c) of the multicell structure of up/down perforation; Insulated chamber (1a, 1b or 1c) bottom is respectively equipped with aeration piping (3a, 3b or 3c); Precipitation clarification part (12) bottom is provided with shore pipe.

2. self-cleaning according to claim 1 biological filter is characterized in that described precipitation clarification part (12) is flat, the awl end.

3. self-cleaning according to claim 1 biological filter is characterized in that described pond body (1) is circular, rectangle, is monomer or many bodies; Described pond body (1) is a tank structure.

4. self-cleaning according to claim 1 biological filter is characterized in that (1a, 1b are provided with filler (2) in 1c) to described insulated chamber.