Integrated biological aerated filter

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an integrated biological aerated filter which comprises a biological aerated filter, one side of the biological aerated filter is fixedly connected with a treatment water tank through a pipeline, and one side, far away from the biological aerated filter, of the treatment water tank is fixedly connected with an oxygen feeding mixing tank through a pipeline. The other end of the oxygen feeding mixing tank is fixedly connected with a stair, the upper end of the stair is fixedly connected with a platform stair, and one side of the platform stair is fixedly connected to the upper ends of the biological aerated filter, the treatment water tank and the oxygen feeding mixing tank; according to the utility model, sewage flows in and is discharged into the biological aerated filter through the water inlet pipe, under the action of the single-hole aeration pipe, the sewage rolls over and is fully fused with a filter material added into the biological aerated filter, and the sewage flows to a certain height, and is prevented from overflowing through the water outlet weir, so that the water flow is uniformly distributed when flowing into the treatment water tank; meanwhile, the water level is controlled to ensure stable discharge, a buffer area is formed under the action of the reverse drainage weir, and the sewage treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an integrated aerated biological filter. Background Art

[0002] Aerated biological filter (BAF) is a new type of biofilm wastewater treatment process, and this process has been developed to remove nitrogen and phosphorus. This process has the functions of removing SS, COD, BOD, nitrification, denitrification, phosphorus removal, and removal of AOX (harmful substances). Aerated biological filter is a new process that integrates biological oxidation and interception of suspended solids.

[0003] An integrated aerated biological filter tank (publication number: CN 206359307 U) disclosed herein includes a tank body, a water outlet pipe, a flushing drain pipe, a water and air distribution device located at the bottom of the tank body, a filter plate located in the tank, and a filter head fixed on the filter plate. The filter plate is fixed to the upper part of the tank body and divides the inner cavity of the tank body into an upper chamber and a lower chamber. The upper chamber is provided with a water outlet communicated with the water outlet pipe, a gravity flushing water chamber is formed between the water outlet and the filter plate, a suspended filter material layer is provided in the lower chamber, and a drain outlet communicated with the flushing drain pipe is provided in the lower chamber below the suspended filter material layer.

[0004] Based on the search of the above patents and combined with the equipment in the prior art, it is found that the pollutants are blocked by the filter plate, which makes the filter device easy to be blocked, and the sewage cannot be fully treated, which increases the cost. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an integrated aerated biological filter to solve the problem of insufficient sewage treatment.

[0006] Based on the above purpose, the utility model provides an integrated aerated biological filter, including: an aerated biological filter, one side of the aerated biological filter is fixedly connected to a treatment tank via a pipeline, the side of the treatment tank away from the aerated biological filter is fixedly connected to an oxygenation mixing tank via a pipeline, the other end of the oxygenation mixing tank is fixedly connected to a staircase, the upper end of the staircase is fixedly connected to a platform staircase, and one side of the platform staircase is fixedly connected to the aerated biological filter, the treatment tank and the upper end of the oxygenation mixing tank.

[0007] As an optional embodiment, the upper end of the aerated biological filter is fixedly connected to a water outlet weir, the lower end of the water outlet weir is fixedly connected to a reverse drainage weir, the reverse drainage weir is fixedly connected to the aerated biological filter, a number of evenly distributed single-hole aeration tubes are fixed to the bottom end of the aerated biological filter, a number of evenly distributed aeration holes are fixed on the single-hole aeration tubes, and an aeration tube is connected to the single-hole aeration tube.

[0008] As an optional implementation, a plurality of evenly distributed filter heads are fixedly connected to the lower end of the single-hole aeration pipe.

[0009] As an optional implementation, an overflow pipe is fixedly connected above one end of the aerated biological filter away from the platform stairs, a maintenance manhole is fixedly connected to the lower end of the overflow pipe, and a vent pipe is fixedly connected to one side of the overflow pipe of the maintenance manhole.

[0010] As an optional embodiment, the aerated biological filter is fixedly connected to a water inlet pipe at one end away from the overflow pipe, the water inlet pipe is fixedly connected to a water outlet pipe at one side, the outlet pipe is fixedly connected to a backwash inlet pipe at one side away from the water inlet pipe, the backwash inlet pipe is fixedly connected to a backwash drain pipe at one end away from the water outlet pipe, and the backwash drain pipe is fixedly connected to a backwash water inlet pipe at one end away from the backwash inlet pipe.

[0011] As an optional embodiment, the upper end of the treatment water tank is fixedly connected to a water outlet weir, the lower end of the water outlet weir is fixedly connected to a reverse drainage weir, the bottom end of the treatment water tank is fixedly connected to a plurality of evenly distributed filter heads, the upper ends of the filter heads are fixedly connected to a plurality of evenly distributed single-hole aeration pipes, a plurality of cloud-distributed aeration holes are fixed on the single-hole aeration pipe, and an aeration pipe is fixedly connected to the single-hole aeration pipe.

[0012] As an optional embodiment, the upper end of the oxygenated mixing tank is fixedly connected to a water outlet weir, the lower end of the water outlet weir is fixedly connected to a backflow weir, filter material is added to the inside of the oxygenated mixing tank, a plurality of evenly distributed filter heads are fixed to the bottom end of the oxygenated mixing tank, a plurality of evenly distributed single-hole aeration tubes are fixed to the upper ends of the filter heads, a plurality of evenly distributed aeration holes are fixedly connected to the single-hole aeration tube, and an aeration tube is fixedly connected to one end of the single-hole aeration tube.

[0013] Beneficial effects of the utility model:

[0014] The utility model discharges sewage into an aerated biological filter tank through an inlet pipe, and under the action of a single-hole aeration pipe, the sewage is tumbled and fully integrated with filter materials added inside the aerated biological filter tank. When the sewage flows to a certain height, it is prevented from overflowing through an outlet weir to ensure that the water flow is evenly distributed when flowing into a treatment pool. At the same time, the water level is controlled to ensure stable discharge, and a buffer zone is formed under the action of a reverse drainage weir, thereby improving the effect of sewage treatment.

[0015] When cleaning the aerated biological filter, clean water flows into the aerated biological filter through the backwash inlet pipe. The aerated biological filter is cleaned under the action of the backwash inlet pipe, and the cleaned water is discharged through the vent pipe. Maintenance personnel can inspect and maintain the interior through the inspection manhole to ensure the filtration effect and increase the service life of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is an overall schematic diagram of an aerated biological filter tank according to an embodiment of the utility model;

[0018] Figure 2 This is a schematic top view of an aerated biological filter tank according to an embodiment of the utility model;

[0019] Figure 3 This is a side cross-sectional schematic diagram of an aerated biological filter tank according to an embodiment of the utility model;

[0020] Figure 4 It is a front cross-sectional schematic diagram of an aerated biological filter tank according to an embodiment of the utility model.

[0021] The markings in the figure are:

[0022] 1. Aerated biological filter; 2. Treatment tank; 3. Oxygen mixing tank; 4. Platform stairs; 101. Water inlet pipe; 102. Water outlet pipe; 103. Backwash inlet pipe; 104. Backwash drain pipe; 105. Backwash inlet pipe; 106. Stairs; 107. Single-hole aeration pipe; 108. Overflow pipe; 109. Inspection manhole; 110. Vent pipe; 111. Water outlet weir; 112. Backwash weir; 113. Aeration pipe; 114. Filter material; 115. Filter head; 116. Aeration hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figure 1-Figure 4 As shown, an integrated aerated biological filter comprises: an aerated biological filter 1, one side of the aerated biological filter 1 is fixedly connected to a treatment pool 2 through a pipeline, the side of the treatment pool 2 away from the aerated biological filter 1 is fixedly connected to an oxygenation mixing pool 3 through a pipeline, the other end of the oxygenation mixing pool 3 is fixedly connected to a staircase 106, the upper end of the staircase 106 is fixedly connected to a platform staircase 4, and one side of the platform staircase 4 is fixedly connected to the upper ends of the aerated biological filter 1, the treatment pool 2 and the oxygenation mixing pool 3.

[0026] In this way, after one filtration at 1, the filtered sewage flows into the treatment pool 2, and is filtered again through the treatment pool 2 and flows into the oxygen mixing pool 3. The sewage is filtered more fully through the oxygen mixing pool 3 for three times, and the filtering effect can be observed at any time through the platform stairs 4.

[0027] As an optional implementation, Figure 2 Figure 3As shown, an outlet weir 111 is fixedly connected to the upper end of the aerated biological filter 1, a reverse drainage weir 112 is fixedly connected to the lower end of the outlet weir 111, the reverse drainage weir 112 is fixedly connected to the aerated biological filter 1, a plurality of evenly distributed single-hole aeration pipes 107 are fixed to the lower end of the aerated biological filter 1, a plurality of evenly distributed aeration holes 116 are fixed to the single-hole aeration pipe 107, an aeration pipe 113 is connected to the single-hole aeration pipe 107, a plurality of evenly distributed filter heads 115 are fixedly connected to the lower end of the single-hole aeration pipe 107, an overflow pipe 108 is fixedly connected to the upper end of the aerated biological filter 1 away from the platform stairs 4, and the overflow pipe 108 is fixedly connected to the upper end of the aerated biological filter 1 away from the platform stairs 4. The lower end of the pipe 108 is fixedly connected to a maintenance manhole 109, and one side of the overflow pipe 108 of the maintenance manhole 109 is fixedly connected to a vent pipe 110. The end of the aerated biological filter 1 away from the overflow pipe 108 is fixedly connected to the water inlet pipe 101, and one side of the water inlet pipe 101 is fixedly connected to the water outlet pipe 102. The side of the water outlet pipe 102 away from the water inlet pipe 101 is fixedly connected to the backwash air inlet pipe 103, and the end of the backwash air inlet pipe 103 away from the water outlet pipe 102 is fixedly connected to the backwash drain pipe 104, and the end of the backwash drain pipe 104 away from the backwash air inlet pipe 103 is fixedly connected to the backwash water inlet pipe 105.

[0028] In this way, the sewage flows into the aerated biological filter 1 through the water inlet pipe 101. Under the action of the single-hole aeration pipe 107, the sewage is rolled and fully integrated with the filter material 114 added inside the aerated biological filter 1. The sewage flows into a certain height and passes through the outlet weir 111 to prevent the sewage from overflowing, ensuring that the water is evenly distributed when it flows into the treatment pool 2. At the same time, the water level is controlled to ensure stable discharge. Under the action of the backwash weir 112, a buffer zone is formed to ensure the effect of sewage treatment. When cleaning the aerated biological filter 1, clean water flows into the aerated biological filter 1 through the backwashing water inlet pipe 105. Under the action of the backwashing air inlet pipe 103, the aerated biological filter 1 is cleaned, and the cleaned water is discharged through the vent pipe 110. The maintenance personnel can inspect and maintain the interior through the inspection manhole 109.

[0029] As an optional implementation, Figure 3 , Figure 4 As shown, a water outlet weir 111 is fixedly connected to the upper end of the treatment pool 2, a reverse drainage weir 112 is fixedly connected to the lower end of the water outlet weir 111, a plurality of evenly distributed filter heads 115 are fixedly connected to the bottom end of the treatment pool 2, a plurality of evenly distributed single-hole aeration pipes 107 are fixedly connected to the upper end of the filter heads 115, a plurality of cloud-distributed aeration holes 116 are fixed on the single-hole aeration pipe 107, and an aeration pipe 113 is fixedly connected to the single-hole aeration pipe 107.

[0030] In this way, the sewage after one treatment flows into the treatment pool 2. Through the action of the outlet weir 111 and the back-drainage weir 112, the sewage can fully pass through the aeration holes 116 in the treatment pool 2 to fully float the filter material 114 in the sewage and then treat it.

[0031] As an optional implementation, Figure 3 , Figure 4 As shown, a water outlet weir 111 is fixedly connected to the upper end of the oxygenated mixing tank 3, a backflow weir 112 is fixedly connected to the lower end of the water outlet weir 111, filter material 114 is added to the oxygenated mixing tank 3, a plurality of evenly distributed filter heads 115 are fixed to the bottom end of the oxygenated mixing tank 3, a plurality of evenly distributed single-hole aeration tubes 107 are fixed to the upper end of the filter heads 115, a plurality of evenly distributed aeration holes 116 are fixedly connected to the single-hole aeration tube 107, and an aeration tube 113 is fixedly connected to one end of the single-hole aeration tube 107.

[0032] In this way, the sewage flowing into the oxygenated mixing tank 3 is tumbled by the single-hole aeration pipe 107 under the action of the back-drainage weir 112 and the outlet weir 111 so that the sewage is merged with the filter material 114, so that the pollutants in the water are completely filtered out.

[0033] In this embodiment, sewage flows into the aerated biological filter 1 through the water inlet pipe 101. Under the action of the single-hole aeration pipe 107, the sewage is rolled and fully integrated with the filter material 114 added inside the aerated biological filter 1. When the sewage flows to a certain height, it is prevented from overflowing through the outlet weir 111 to ensure that the water is evenly distributed when it flows into the treatment pool 2. At the same time, the water level is controlled to ensure stable discharge. Under the action of the backwash weir 112, a buffer zone is formed to ensure the effect of sewage treatment. When cleaning the aerated biological filter 1, clean water flows into the aerated biological filter 1 through the backwash water inlet pipe 105. Under the action of the backwash air inlet pipe 103, the clean water flows into the aerated biological filter 1. The aerated biological filter 1 is cleaned and the cleaned water is discharged through the vent pipe 110. The maintenance personnel can inspect and maintain the interior through the inspection manhole 109. The sewage after one treatment flows into the treatment pool 2. Through the action of the outlet weir 111 and the back-drainage weir 112, the sewage can fully pass through the aeration holes 116 in the treatment pool 2 to fully float the filter material 114 in the sewage and then treat it. The sewage flows into the oxygen mixing tank 3. Under the action of the back-drainage weir 112 and the outlet weir 111, the single-hole aeration pipe 107 rolls the sewage to make it merge with the filter material 114, so that the pollutants in the water are completely filtered out.

[0034] A person skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An integrated aerated biological filter, comprising: The aerated biological filter (1) is characterized in that one side of the aerated biological filter (1) is fixedly connected to a treatment pool (2) via a pipeline, the side of the treatment pool (2) away from the aerated biological filter (1) is fixedly connected to an oxygenation mixing pool (3) via a pipeline, the other end of the oxygenation mixing pool (3) is fixedly connected to a staircase (106), the upper end of the staircase (106) is fixedly connected to a platform staircase (4), and one side of the platform staircase (4) is fixedly connected to the upper ends of the aerated biological filter (1), the treatment pool (2) and the oxygenation mixing pool (3).

2. The integrated aerated biological filter according to claim 1, characterized in that: The upper end of the aerated biological filter (1) is fixedly connected to a water outlet weir (111), the lower end of the water outlet weir (111) is fixedly connected to a back-drainage weir (112), the back-drainage weir (112) is fixedly connected to the aerated biological filter (1), a plurality of evenly distributed single-hole aeration pipes (107) are fixed to the bottom end of the aerated biological filter (1), a plurality of evenly distributed aeration holes (116) are fixed to the single-hole aeration pipes (107), and an aeration pipe (113) is connected to the single-hole aeration pipe (107).

3. The integrated aerated biological filter according to claim 2, characterized in that: A plurality of evenly distributed filter heads (115) are fixedly connected to the lower end of the single-hole aeration pipe (107).

4. The integrated aerated biological filter according to claim 2, characterized in that: An overflow pipe (108) is fixedly connected to the top of one end of the aerated biological filter (1) away from the platform staircase (4), a maintenance manhole (109) is fixedly connected to the lower end of the overflow pipe (108), and a vent pipe (110) is fixedly connected to one side of the overflow pipe (108) through the maintenance manhole (109).

5. The integrated aerated biological filter according to claim 4, characterized in that: An end of the aerated biological filter (1) away from the overflow pipe (108) is fixedly connected to a water inlet pipe (101), one side of the water inlet pipe (101) is fixedly connected to a water outlet pipe (102), a side of the water outlet pipe (102) away from the water inlet pipe (101) is fixedly connected to a backwash air inlet pipe (103), an end of the backwash air inlet pipe (103) away from the water outlet pipe (102) is fixedly connected to a backwash drain pipe (104), and an end of the backwash drain pipe (104) away from the backwash air inlet pipe (103) is fixedly connected to a backwash water inlet pipe (105).

6. The integrated aerated biological filter according to claim 1, characterized in that: The upper end of the treatment water tank (2) is fixedly connected to a water outlet weir (111), the lower end of the water outlet weir (111) is fixedly connected to a back-drainage weir (112), the lower end of the treatment water tank (2) is fixedly connected to a plurality of evenly distributed filter heads (115), the upper end of the filter heads (115) is fixedly connected to a plurality of evenly distributed single-hole aeration pipes (107), a plurality of cloud-distributed aeration holes (116) are fixedly connected to the single-hole aeration pipe (107), and an aeration pipe (113) is fixedly connected to the single-hole aeration pipe (107).

7. The integrated aerated biological filter according to claim 1, characterized in that: The upper end of the oxygenated mixing tank (3) is fixedly connected to a water outlet weir (111), the lower end of the water outlet weir (111) is fixedly connected to a back-drainage weir (112), filter material (114) is added to the interior of the oxygenated mixing tank (3), a plurality of evenly distributed filter heads (115) are fixed to the bottom end of the interior of the oxygenated mixing tank (3), a plurality of evenly distributed single-hole aeration tubes (107) are fixed to the upper end of the filter heads (115), a plurality of evenly distributed aeration holes (116) are fixedly connected to the single-hole aeration tube (107), and an aeration tube (113) is fixedly connected to one end of the single-hole aeration tube (107).

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