CN211871533U

CN211871533U - Biological aerated filter

Info

Publication number: CN211871533U
Application number: CN202020119672.5U
Authority: CN
Inventors: 曾亮; 赵玉; 刘立; 刘志鹏; 王蓉莉; 吴静鹏; 陈龙
Original assignee: Jiangsu Lankong Environmental Protection Technology Co ltd; Lanshen Group Co ltd
Current assignee: Jiangsu Lankong Environmental Protection Technology Co ltd; Lanshen Group Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-11-06
Anticipated expiration: 2030-01-19

Abstract

The utility model provides a biological aerated filter, including the filtering pond that has water inlet and delivery port, be provided with the biomembrane filter material on the filtering pond, still include guide duct and aeration tuber pipe, aeration tuber pipe is located the biomembrane filter material, guide duct and aeration tuber pipe intercommunication, and the guide duct top stretches out the biomembrane filter material. Through the arrangement of the communicated air guide pipe and the aeration air pipe, the air-water combined cleaning is not required to be carried out manually by combining with back washing, and the wastes and the biological waste filter membrane are cleaned fully and efficiently.

Description

Biological aerated filter

Technical Field

The utility model belongs to the technical field of environmental protection, particularly, relate to a biological aerated filter.

Background

At present, biological filters are widely used for sewage treatment. The biological filter is to attach microorganisms to a carrier or a filter material and decompose organic matters in sewage through metabolism of the microorganisms. When the existing biological filter is used for biological treatment, a microorganism biofilm formation is directly formed on a filler, and the biological treatment is carried out on the wastewater. After working for a period of time, the microorganisms need to be cultured again to ensure the treatment quality of biological treatment, and the biological filter membrane needs to be washed back at intervals, including suspended matters intercepted by the filler and the aged biological membrane.

In practical application, the aeration and back flushing share the same air distributing pipe, but the air distribution is not uniform because the air demand for aeration is smaller than that for back flushing. The biological membrane filter material has certain requirements on the flushing strength, and the air volume for aeration during normal work is different from the air volume for aeration during backwashing, so that the risk of serious shedding of the biological filter membrane and damage and loss of the filler can be caused when the biological filter material shares the same aeration equipment.

Disclosure of Invention

An object of the utility model is to prior art, provide a biological aerated filter, can guarantee to reduce the risk that the biomembrane filter material runs off to carry out the air water to the filtering pond through back flush intaking and biological filter material layer aeration tuber pipe and unite the back flush, the efficient washs, improves the cleaning efficiency.

In order to solve the technical problem, the embodiment of the utility model provides an adopt following technical scheme:

the biological aerated filter is characterized by further comprising an air guide pipe and an aerated air pipe, wherein the aerated air pipe is positioned in the biological membrane filter material, the air guide pipe is communicated with the aerated air pipe, and the top end of the air guide pipe extends out of the biological membrane filter material.

As a preferred example, the water inlet comprises a backwash water inlet pipe and a wastewater water inlet, and the water outlet comprises a backwash water outlet and a wastewater water outlet.

As a preferred example, the water inlet is arranged at the lower part of one end of the filter tank, and the water outlet is arranged at the upper part of the other end of the filter tank.

Preferably, the biological filter further comprises a filter plate, and the filter plate is arranged at the lower part of the biological filter.

As a preferable example, the biological filter further comprises a gravel bearing layer, the gravel bearing layer is laid on the filter plate, and an aeration pipe is arranged in the gravel bearing layer.

Preferably, at least one filter head is arranged on the filter plate.

Preferably, the aeration air pipe is provided with an upward air hole.

Preferably, the air washing strength of the aeration air pipe is 15-20L/(m)²S) and the air washing time is 3-5 min.

As a preferred example, the strength of the backwashing water inlet pipe is 5.0-7L/(m)²S) and the washing time is 5-8 min.

Compared with the prior art, the utility model discloses biological aerated filter can guarantee to reduce the risk that the biomembrane filter material runs off to carry out the air water through back flush intaking and biological filter material layer aeration tuber pipe and unite the back flush to the filtering pond, the efficient washs, improves the cleaning efficiency. The biological aerated filter of the embodiment comprises an air guide pipe and an aerated air pipe, wherein the aerated air pipe is positioned in the biological membrane filter material, the air guide pipe is communicated with the aerated air pipe, and the top end of the air guide pipe extends out of the biological membrane filter material. Through arranging the communicated air guide pipe and the aeration air pipe, the full air-water combined cleaning is formed by combining back washing, and the waste and the biological waste filter membrane are efficiently cleaned.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

The figure shows that: the device comprises a water inlet 1, a water outlet 2, a filter tank 3, a biomembrane filter material 4, an air guide pipe 5, an aeration air pipe 6, a backwashing water inlet pipe 7, a wastewater inlet 8, a filter plate 9, a gravel supporting layer 10, an aeration pipe 11 and a filter head 12.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be described in detail with reference to the following embodiments, which are only used for explaining the present invention and do not limit the protection scope of the present invention.

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

As shown in fig. 1, the embodiment provides a biological aerated filter, which includes a filter 3 with a water inlet 1 and a water outlet 2, and a biological membrane filter material 4 is disposed on the filter 3, and is characterized by further including an air guide pipe 5 and an aerated air pipe 6, wherein the aerated air pipe 6 is located in the biological membrane filter material 4, the air guide pipe 5 is communicated with the aerated air pipe 6, and the top end of the air guide pipe 5 extends out of the biological membrane filter material 4.

In the biofilter of the above embodiment, preferably, the water inlet 1 includes a backwash water inlet pipe 7 and a wastewater water inlet 8, and the water outlet 2 includes a backwash water outlet and a wastewater water outlet. The wastewater is guided into the filter 3 through the wastewater inlet 8, is poured out from the backwashing water outlet after being treated, then starts backwashing, guides clean water into the backwashing water inlet pipe 7, and pours out the washed waste together from the wastewater outlet after the filter 3 is backwashed. The strength of the backwashing water in the backwashing water inlet pipe 7 is 5.0-7L/(m)²S) and the washing time is 5-8min, thereby achieving the maximum washing efficiency.

Preferably, the water inlet 1 is arranged at the lower part of one end of the filter tank 3, and the water outlet 2 is arranged at the upper part of the other end of the filter tank 3. The purpose of the arrangement is to ensure that the inlet and outlet water can be cleaned fully in the filter 3, increase the distance of the water in the filter and improve the water purification efficiency.

Preferably, the biological filter further comprises a filter plate 9, and the filter plate 9 is arranged at the lower part of the filter 3. Through setting up filter plate 9, carry out the primary filtration with waste water, filter the back with bold impurity, carry waste water further filtration upwards again. The filter plate 9 is provided with at least one filter head 12, and the filter head 12 can improve the filtering effect of the filter plate.

Preferably, the biological filter further comprises a gravel bearing layer 10, the gravel bearing layer 10 is laid on the filter plate 9, and an aeration pipe 11 is arranged in the gravel bearing layer 10. The gravel bearing layer 10 can further adsorb and remove impurities in the wastewater after the impurities are filtered by the filter plate 9, and then the wastewater is conveyed to the biomembrane filter material zone 4. Meanwhile, after the wastewater is discharged, the gravel bearing layer 10 is air-washed through the aeration pipe 11.

Preferably, the biomembrane filter material area 4 comprises an air guide pipe 5 and an aeration air pipe 6, the aeration air pipe 6 is positioned in the biomembrane filter material 4, the air guide pipe 5 is communicated with the aeration air pipe 6, and the top end of the air guide pipe 5 extends out of the biomembrane filter material 4. When the biological membrane filter material is used, the biological membrane filter material 4 decomposes organic matters in the wastewater, efficiently purifies the water, and then conveys the treated wastewater upwards to be discharged through the water outlet 2. Meanwhile, the air guide pipe 5 and the aeration air pipe 6 are arranged, so that after the water purification of the biological membrane filter material 4 is finished, air is introduced through the air guide pipe 5, the biological membrane filter material 4 is subjected to air washing through the aeration air pipe 6, and suspended matters intercepted on the filter material and aged microbial membranes are washed out, so that the cleaning efficiency is improved.

Preferably, the aeration air pipe 6 is provided with an upward air hole. The air washing strength of the aeration air pipe 6 is 15-20L/(m)²S) and the air washing time is 3-5 min. The purpose of setting up the gas pocket is in order to carry out the aeration in each position of aeration tuber pipe 6, fully carries out the air purge with biomembrane filter material 4, improves air purge efficiency.

The working process of the high-density clarification tank of the embodiment is as follows: waste water is led into the filter 3 through the waste water inlet 8, firstly enters the filter plate 9 part, coarse particles in the waste water are screened and filtered through the filter plate 9 and the filter head 12, then the treated waste water is discharged to the gravel bearing layer 10, the gravel bearing layer 10 can further adsorb and remove impurities in the waste water after the filter plate 9 filters the impurities, then the waste water is discharged to the biomembrane filter material area 4, and after entering the biomembrane filter material area 4, organic matters in the waste water are decomposed through the filter material 4, the waste water treatment work is completed, and then the waste water is discharged through the water outlet 2. And finally, performing back washing and air washing on the filter tank, flushing back-washed water into the filter tank 3 through a back washing water inlet pipe 7, fully washing the filter material 4, the filter plate 9 and the gravel bearing layer 10, performing air-water combined back washing on the filter material layer 4 and the gravel bearing layer 10 by combining the aeration air pipe 6, the aeration pipe 11 and the air guide pipe 5, fully removing residual impurities and waste filter membranes, and discharging the water with the residual impurities after back washing through a wastewater outlet to finish the use of the whole biological aerated filter tank.

Compared with the prior art, adopt the utility model discloses biological aerated filter through the guide duct 5 and the aeration tuber pipe 6 that set up the intercommunication, combines the back flush, forms abundant air water and jointly washs, high-efficient washing discarded object and biological abandonment filter membrane.

The embodiments of the present invention are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the content of the claims of the present invention should be regarded as the technical scope of the present invention.

Claims

1. The biological aerated filter comprises a filter (3) with a water inlet (1) and a water outlet (2), wherein a biological membrane filter material (4) is arranged on the filter (3), and the biological aerated filter is characterized by further comprising an air guide pipe (5) and an aerated air pipe (6), wherein the aerated air pipe (6) is positioned in the biological membrane filter material (4), the air guide pipe (5) is communicated with the aerated air pipe (6), and the top end of the air guide pipe (5) extends out of the biological membrane filter material (4).

2. A biological aerated filter according to claim 1, wherein the water inlet (1) comprises a backwash water inlet pipe (7) and a wastewater inlet (8), and the water outlet (2) comprises a backwash water outlet and a wastewater outlet.

3. A biological aerated filter according to claim 1, wherein the water inlet (1) is arranged at the lower part of one end of the filter (3) and the water outlet (2) is arranged at the upper part of the other end of the filter (3).

4. A biological aerated filter according to claim 1, further comprising a filter plate (9), wherein the filter plate (9) is disposed at a lower portion of the filter.

5. A biological aerated filter according to claim 4, further comprising a gravel support layer (10), wherein the gravel support layer (10) is laid on the filter plate (9), and the gravel support layer (10) is provided with the aeration pipe (11).

6. A biological aerated filter according to claim 5, wherein the filter plates (9) are provided with at least one filter head (12).

7. A biological aerated filter according to claim 1, wherein the air aeration pipe (6) is provided with upward air holes.

8. A biological aerated filter according to claim 1, wherein the air-wash strength of the air-wash duct (6) is 15-20L/(m)²S) and the air washing time is 3-5 min.

9. A biological aerated filter according to claim 2, wherein the backwash water inlet pipe (7) has a backwash water intensity of 5.0-7L/(m)²S) and the washing time is 5-8 min.