CN216513325U - Nitrify deep bed filtering pond of denitrification and filterable multiple use type - Google Patents
Nitrify deep bed filtering pond of denitrification and filterable multiple use type Download PDFInfo
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- CN216513325U CN216513325U CN202122594716.7U CN202122594716U CN216513325U CN 216513325 U CN216513325 U CN 216513325U CN 202122594716 U CN202122594716 U CN 202122594716U CN 216513325 U CN216513325 U CN 216513325U
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Abstract
The utility model discloses a multi-purpose deep-bed filter for nitrification and denitrification and filtration, which relates to the technical field of water treatment, sewage treatment and industrial wastewater, and comprises an intelligent PLC control system and a plurality of multi-purpose deep-bed filters for nitrification and denitrification and filtration, wherein the bottom of the inner wall of the multi-purpose deep-bed filter for nitrification and denitrification and filtration is provided with a plurality of cross-flow type water and gas distribution type double-layer filter bricks, the top of the inner wall of the multi-purpose deep-bed filter for nitrification and denitrification and filtration is provided with coarse-grained quartz sand fillers, the multi-purpose deep-bed filter for nitrification and denitrification and filtration is provided with an automatic water inlet valve, the multi-purpose deep-bed filter for nitrification and denitrification and filtration is provided with an automatic wastewater discharge valve, and the multi-purpose deep-bed filter for nitrification and denitrification and filtration is provided with a back-flushing air pipe. The device has multiple processing functions of nitrification, denitrification and independent filtration, and can switch functions according to the concentration of ammonia nitrogen, nitro nitrogen and total nitrogen in inlet water.
Description
Technical Field
The utility model relates to the technical field of water treatment, sewage treatment and industrial wastewater, in particular to a multi-purpose deep bed filter for nitrification and denitrification and filtration.
Background
The total nitrogen in the sewage often exists in the form of ammonia nitrogen and nitro nitrogen. The ammonia nitrogen is converted into nitro-nitrogen in the aeration process, and the nitro-nitrogen is converted into nitrogen and biological sludge by utilizing a carbon source, so that the purpose of removing the total nitrogen is achieved.
At present, the application of advanced treatment ammoxidation and denitrification filter in a sewage treatment plant is not widely popularized and applied due to the blockage fault of an upflow biological filter. Due to the singleness of the application function of the deep bed filter, the deep bed filter is only used as a filter or a denitrification filter.
Therefore, a multi-purpose deep bed filter for nitrification and denitrification and filtration which can solve the above problems is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a multi-purpose deep-bed filter tank for nitrification, denitrification and filtration, which aims to solve the problem of the singleness of the application function of the deep-bed filter tank in the background technology.
In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a nitrify denitrification and filterable multi-purpose type deep bed filtering pond, includes that intelligent PLC control system and quantity are a plurality of nitrify denitrification and filterable multi-purpose type deep bed filtering pond, the bottom of nitrify denitrification and filterable multi-purpose type deep bed filtering pond inner wall is provided with the cross-flow type water distribution gas distribution type double-deck filter brick that quantity is a plurality of, the top of nitrify denitrification and filterable multi-purpose type deep bed filtering pond inner wall is provided with coarse grain quartz sand and packs, the one end at nitrify denitrification and filterable multi-purpose type deep bed filtering pond top is provided with into water automatic valve, the other end at nitrify denitrification and filterable multi-purpose type deep bed filtering pond top is provided with waste water drainage automatic valve, the one end at nitrify denitrification and filterable multi-purpose type deep bed filtering pond bottom is provided with the recoil trachea, the other end of recoil trachea is provided with air recoil automatic valve, the other end of air recoil automatic valve is provided with the recoil fan, an aeration by-pass pipe is arranged in the middle of the back-flushing air pipe, an aeration automatic valve is arranged at the other end of the aeration by-pass pipe, and an aeration fan is arranged at the other end of the aeration automatic valve.
Nitrify the other end of denitrification and filterable multi-purpose type deep bed filtering pond bottom have a water automatic valve and a water recoil automatic valve respectively, the other end of water recoil automatic valve is provided with the backwash water pump the other end of play water automatic valve is provided with the water header pipe nitrify the top in denitrification and filterable multi-purpose type deep bed filtering pond and be provided with the carbon source and throw the branch pipe, the bottom that the branch pipe was thrown to the carbon source is provided with the solenoid valve, the top of nitrifying denitrification and filterable multi-purpose type deep bed filtering pond is provided with the water header pipe, all be provided with ammonia nitrogen detector, nitro-nitrogen detector and dissolved oxygen detector between intelligent PLC control system and water header pipe and the water header pipe.
Optionally, the backflushing air pipe comprises a main backflushing air pipe and a plurality of sub-backflushing air pipes, and the other end of the main backflushing air pipe is connected with the plurality of sub-backflushing air pipes.
Optionally, the air backflushing automatic valve and the aeration bypass pipe are connected with the backflushing air pipe main pipe.
Optionally, the number of the ammonia nitrogen detectors is two, the number of the nitro nitrogen detectors is two, and the number of the dissolved oxygen detectors is two.
Optionally, an electromagnetic flowmeter is arranged between the intelligent PLC control system and the water inlet main pipe.
Optionally, the number of the carbon source adding branch pipes corresponds to that of the multi-purpose deep bed filter for nitrification, denitrification and filtration.
The utility model has the technical effects and advantages that:
1. the device has multiple processing functions of nitrification, denitrification and independent filtration, and can switch functions according to the concentration of ammonia nitrogen, nitro nitrogen and total nitrogen of inlet water.
2. The application of the cross-flow water distribution and air distribution type double-layer filter brick ensures the possibility of switching multiple treatment functions of nitrification, denitrification and independent filtration of the deep-bed filter. The cross-flow water and gas distribution type double-layer filter brick has the service life of more than 30 years, is a maintenance-free system, ensures the operation stability of the system and the water quality to reach the standard, and reduces the operation and maintenance cost.
3. The multi-purpose deep bed filter for nitrification and denitrification and filtration adopts a downward flow operation mode, suspended particles in inlet water and microbial films generated in a biochemical process are intercepted in a filter material layer and discharged along with wastewater from the top of the filter through air-water backwashing, and the sedimentation in a water and gas distribution system at the bottom of the filter is avoided, so that the filter is not blocked.
The downward-flow running multi-purpose deep-bed filter tank for nitrification and denitrification and filtration can resist the water inlet impact of higher suspended matter concentration. After the water inflow impact of higher suspended matter concentration, the deep bed filter can be quickly recovered through air-water backwashing, and the system is a carefree and stable multifunctional system.
Drawings
FIG. 1 is a diagrammatic illustration of an instrument and PLC control system configuration of the present invention;
FIG. 2 is a schematic view of the configuration of a carbon source feeding pipe according to the present invention;
FIG. 3 is a schematic view of the configuration of the aeration fan and the automatic aeration valve according to the present invention;
FIG. 4 is a schematic diagram of the multi-purpose deep-bed filter for nitrification and denitrification and filtration according to the present invention.
In the figure: 1 a multi-purpose deep bed filter for nitrification and denitrification and filtration, 2 a cross-flow type water and gas distribution type double-layer filter brick, 3 a coarse quartz sand filler, 4 a backwashing water pump, 5 a backwashing fan, 6 a water inlet automatic valve, 7 a water outlet automatic valve, 8 an air backwashing automatic valve, 9 a water backwashing automatic valve, 10 a wastewater drainage automatic valve, 11 an aeration fan, 12 an aeration automatic valve, 13 a carbon source adding branch pipe, 14 an electromagnetic valve, 15 an electromagnetic flow meter, 16 an ammonia nitrogen detector, 17 a nitro nitrogen detector, 18 a dissolved oxygen detector, 19 an intelligent PLC control system, 100 a water outlet main pipe, 101 a water inlet main pipe, 102 a backwashing air pipe and 103 an aeration bypass pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The utility model provides a nitrification and denitrification and filtration multipurpose deep-bed filter tank as shown in figures 1-4, which comprises an intelligent PLC control system 19 and a plurality of nitrification and denitrification and filtration multipurpose deep-bed filter tanks 1, wherein the bottom of the inner wall of the nitrification and denitrification and filtration multipurpose deep-bed filter tank 1 is provided with a plurality of cross-flow water and gas distribution type double-layer filter bricks 2, the top of the inner wall of the nitrification and denitrification and filtration multipurpose deep-bed filter tank 1 is provided with coarse-grained quartz sand fillers 3, one end of the top of the nitrification and denitrification and filtration multipurpose deep-bed filter tank 1 is provided with an automatic water inlet valve 6, the other end of the top of the nitrification and denitrification and filtration multipurpose deep-bed filter tank 1 is provided with an automatic wastewater drainage valve 10, one end of the bottom of the nitrification and denitrification and filtration multipurpose deep-bed filter tank 1 is provided with a backflushing gas tank 102, the backflushing gas tank 102 comprises a backflushing gas tank main pipe and a plurality of backflushing gas pipe sub-pipes, the other end of the main back-flushing air pipe is connected with a plurality of back-flushing air pipes in branch pipes, the other end of the back-flushing air pipe 102 is provided with an air back-flushing automatic valve 8, the other end of the air back-flushing automatic valve 8 is provided with a back-flushing fan 5, the middle part of the back-flushing air pipe 102 is provided with an aeration by-pass pipe 103, the air back-flushing automatic valve 8 and the aeration by-pass pipe 103 are connected with the main back-flushing air pipe, the other end of the aeration by-pass pipe 103 is provided with an aeration automatic valve 12, and the other end of the aeration automatic valve 12 is provided with an aeration fan 11.
The other end of the bottom of the multi-purpose deep-bed filter 1 for nitrification, denitrification and filtration is respectively provided with an automatic water outlet valve 7 and an automatic water backflushing valve 9, the other end of the automatic water backflushing valve 9, which is provided with a automatic water outlet valve 7 of a backflushing pump 4, is provided with a main water outlet pipe 100, the top of the multi-purpose deep-bed filter 1 for nitrification, denitrification and filtration is provided with a carbon source adding branch pipe 13, the number of the carbon source adding branch pipes 13 is corresponding to that of the multi-purpose deep-bed filter 1 for nitrification, denitrification and filtration, the bottom of the carbon source adding branch pipe 13 is provided with an electromagnetic valve 14, the top of the multi-purpose deep-bed filter 1 for nitrification, denitrification and filtration is provided with a main water inlet pipe 101, an intelligent PLC control system 19, an ammonia nitrogen detector 16, a nitro nitrogen detector 17 and a dissolved oxygen detector 18 are arranged between the main water outlet pipe 100 and the main water inlet pipe 101, the number of the ammonia nitrogen detectors 16 is two, the number of the nitro nitrogen detectors 17 is two, the number of the dissolved oxygen detectors 18 is two, and an electromagnetic flow meter 15 is arranged between the intelligent PLC control system 19 and the water inlet manifold 101.
The utility model adopts the deep bed filter and is provided with the cross-flow water and gas distribution type double-layer filter bricks 2, so that the downward flowing deep bed filter has the functions of aeration filtration and denitrification filtration. On the basis that the existing deep-bed filter is provided with five automatic valves, each grid of the multi-purpose deep-bed filter 1 for nitrification, denitrification and filtration is additionally provided with an automatic aeration and air intake valve. And a set of special intelligent control system is provided for realizing the switching of the nitrification function and the denitrification function and executing various operation operations of the filter tank system. The specific system composition, function switching principle and operation are as follows.
System Components and description
The multi-purpose deep-bed filter 1 for nitrification and denitrification and filtration is in a downward flow filtration operation mode, and inlet water enters from the top of the filter, passes through filter materials and is collected to a water collecting tank through filter bricks to be discharged.
The cross-flow water and gas distribution type double-layer filter brick 2 is installed as a water and gas distribution and aeration system. When the denitrification filtration is in operation, the cross-flow type water and gas distribution type double-layer filter brick 2 is used for water and gas distribution in the processes of gas and water backflushing in the same direction and gas release water backflushing; when the nitrification filtration is in operation, the cross-flow water and gas distribution type double-layer filter brick 2 is used for aeration gas distribution and collecting filtered water and gas distribution of the same-direction gas water backflushing of the filter;
when the filter is used for filtering alone, the cross-flow water distribution and gas distribution type double-layer filter brick 2 is used for gas-water backflushing in the same direction of gas water and collecting filtered water.
Installing coarse-grained quartz sand filler 3 as a filtering material, domesticating ammonia oxidizing autotrophic bacteria to grow on the surface of the filtering material during nitration operation, and oxidizing ammonia nitrogen into nitro nitrogen by aeration;
when in denitrification operation, denitrifying microorganisms are attached to the surface of the filter material on the upper half part of the filter material layer to grow, and the nitro nitrogen is converted into nitrogen by using an external carbon source to finish denitrification;
when the filter material is used for filtering alone, suspended matter particles in the inlet water are intercepted by the filter material, and then the wastewater is discharged through air water backflushing, so that the concentration of suspended matter in the wastewater is reduced.
A back flushing water pump 4, a back flushing fan 5 and an automatic valve are arranged, and an aeration air source system is added, wherein the aeration air source system comprises a fan, an electric control cabinet and aeration flow control measures.
The back-flushing air pipe 102 of the multi-purpose deep-bed filter 1 for nitrification and denitrification and filtration is provided with an aeration pipe bypass and a pneumatic or electric valve. When aeration filtration is carried out in the nitration operation, a back-flushing air valve on a back-flushing air pipe 102 is closed, an automatic valve on an aeration pipe bypass is opened, aeration air flow enters a cross-flow water and air distribution type double-layer filter brick 2, is transmitted by the filter brick to be distributed with air from a diffusion hole at the top of the filter brick to a filter material layer, ammoxidation aeration is carried out, when the filtration period is reached, the automatic valve on the aeration pipe bypass is closed, and air-water back flushing is carried out in the filter tank. When the denitrification filtration is in operation, the automatic valve on the bypass of the aeration pipe is closed, and the filter tank system operates according to a denitrification filtration mode.
Each filter cell is provided with a carbon source adding branch pipe 13, each branch pipe is provided with an electromagnetic valve 14, and the carbon source adding or non-adding of the carbon source to the filter cell can be controlled automatically. And in the filter tank for nitrification and filtration, the electromagnetic valve of the carbon source feeding branch pipe 13 is closed.
And in the filter for denitrification filtration, the electromagnetic valve of the carbon source adding branch pipe 13 is opened, and the carbon source is added into the grid filter.
The instrument and PLC control system is configured in such a way that an ammonia nitrogen detector 16, a nitro nitrogen detector 17 and a dissolved oxygen detector 18 are arranged on a main pipe or a main channel for water inlet and outlet of the multi-purpose deep-bed filter 1 for nitrification, denitrification and filtration, and an electromagnetic flowmeter 15 and an intelligent PLC control system 19 are arranged on a water inlet main pipe 101.
Second, function switching principle
The intelligent PLC control system 19 calculates by an algorithm according to the inflow water flow signal and the inflow ammonia nitrogen concentration signal, so that part or all of the filter tanks execute an aeration filtering operation mode, and then adjusts the aeration intensity according to the outflow ammonia nitrogen and the dissolved oxygen concentration. The intelligent PLC control system 19 calculates by an algorithm according to the inflow water flow signal and the inflow nitro-nitrogen concentration signal, so that part or all of the filter tanks execute a denitrification filter operation mode, and the denitrification filter tanks are subjected to accurate carbon source adding control.
Third, operation
The intelligent PLC control system 19 carries out algorithm calculation according to the flow and water quality signals fed back by the instrument, carries out nitrification, denitrification and independent filtration function configuration on the installed multi-purpose deep-bed filter 1 with all the grids for nitrification and denitrification and filtration, and respectively executes the nitrification filtration, denitrification filtration or independent filtration operation modes in the operation process of a plurality of filters or all filters.
In the deep bed filter for nitrification filtration, the airflow of an aeration fan 11 passes through an aeration by-pass pipe 103 of the filter according to a certain flow, then is aerated by a cross-flow type water and gas distribution type double-layer filter brick 2, ammonia nitrogen is oxidized into nitro nitrogen, no carbon source is added corresponding to the filter, no gas release control is performed, no constant water level operation control is performed, and aeration filtration control is performed.
In the deep bed filter for denitrification filtration, an automatic aeration valve 12 of an aeration by-pass pipe 103 is closed, the filter does not aerate, and constant water level operation control, gas release, gas-water back flushing and carbon source adding control are executed.
The automatic aeration valve 12 of the aeration by-pass pipe 103 is closed, the filter does not aerate, does not accurately feed carbon sources, does not release gas, and performs variable water level operation and gas-water back flushing control.
Claims (6)
1. The utility model provides a nitrify deep bed filtering pond of denitrification and filterable multi-purpose type, includes intelligent PLC control system (19) and quantity for a plurality of nitrify denitrification and filterable deep bed filtering pond of multi-purpose type (1), its characterized in that: the bottom of the inner wall of the multi-purpose deep bed filter tank (1) for nitrification and denitrification and filtration is provided with a plurality of cross-flow type water and gas distribution type double-layer filter bricks (2), the top of the inner wall of the multi-purpose deep bed filter tank (1) for nitrification and denitrification and filtration is provided with coarse-grained quartz sand fillers (3), one end of the top of the multi-purpose deep bed filter tank (1) for nitrification and denitrification and filtration is provided with a water inlet automatic valve (6), the other end of the top of the multi-purpose deep bed filter tank (1) for nitrification and denitrification and filtration is provided with a wastewater drainage automatic valve (10), one end of the bottom of the multi-purpose deep bed filter tank (1) for nitrification and denitrification and filtration is provided with a back flushing air pipe (102), the other end of the back flushing air pipe (102) is provided with an air automatic valve (8), and the other end of the air back flushing automatic valve (8) is provided with a back flushing fan (5), an aeration bypass pipe (103) is arranged in the middle of the backflushing air pipe (102), an aeration automatic valve (12) is arranged at the other end of the aeration bypass pipe (103), and an aeration fan (11) is arranged at the other end of the aeration automatic valve (12);
the other end of the bottom of the multi-purpose deep bed filter tank (1) for nitrification and denitrification and filtration is respectively provided with an automatic water outlet valve (7) and an automatic water backflushing valve (9), the other end of the water backflushing automatic valve (9) is provided with a backflushing water pump (4), the other end of the automatic water outlet valve (7) is provided with a water outlet main pipe (100), the top of the multi-purpose deep bed filter tank (1) for nitrification and denitrification and filtration is provided with a carbon source adding branch pipe (13), the bottom of the carbon source feeding branch pipe (13) is provided with an electromagnetic valve (14), the top of the multi-purpose deep bed filter tank (1) for nitrification, denitrification and filtration is provided with a water inlet main pipe (101), an ammonia nitrogen detector (16), a nitro nitrogen detector (17) and a dissolved oxygen detector (18) are arranged between the intelligent PLC control system (19) and the water outlet header pipe (100) and the water inlet header pipe (101).
2. The multi-purpose deep-bed filter for nitrification, denitrification and filtration according to claim 1, wherein: the backflushing air pipe (102) comprises a backflushing air pipe main pipe and a plurality of backflushing air pipe branch pipes, and the other end of the backflushing air pipe main pipe is connected with the plurality of backflushing air pipe branch pipes.
3. The multi-purpose deep-bed filter for nitrification, denitrification and filtration according to claim 2, wherein: the air recoil automatic valve (8) and the aeration bypass pipe (103) are connected with a recoil air pipe main pipe.
4. The multi-purpose deep-bed filter for nitrification, denitrification and filtration according to claim 1, wherein: the ammonia nitrogen detector (16) is two, the nitro nitrogen detector (17) is two, and the dissolved oxygen detector (18) is two.
5. The multi-purpose deep-bed filter for nitrification, denitrification and filtration according to claim 1, wherein: an electromagnetic flow meter (15) is arranged between the intelligent PLC control system (19) and the water inlet main pipe (101).
6. The multi-purpose deep-bed filter for nitrification, denitrification and filtration according to claim 1, wherein: the number of the carbon source feeding branch pipes (13) corresponds to that of the multi-purpose deep bed filter (1) for nitrification, denitrification and filtration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122594716.7U CN216513325U (en) | 2021-10-27 | 2021-10-27 | Nitrify deep bed filtering pond of denitrification and filterable multiple use type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122594716.7U CN216513325U (en) | 2021-10-27 | 2021-10-27 | Nitrify deep bed filtering pond of denitrification and filterable multiple use type |
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| Publication Number | Publication Date |
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| CN216513325U true CN216513325U (en) | 2022-05-13 |
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| CN202122594716.7U Active CN216513325U (en) | 2021-10-27 | 2021-10-27 | Nitrify deep bed filtering pond of denitrification and filterable multiple use type |
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| CN (1) | CN216513325U (en) |
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2021
- 2021-10-27 CN CN202122594716.7U patent/CN216513325U/en active Active
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