CN212356705U - Water distribution system and biological aerated filter device - Google Patents
Water distribution system and biological aerated filter device Download PDFInfo
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- CN212356705U CN212356705U CN201922269774.5U CN201922269774U CN212356705U CN 212356705 U CN212356705 U CN 212356705U CN 201922269774 U CN201922269774 U CN 201922269774U CN 212356705 U CN212356705 U CN 212356705U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The utility model relates to a water distribution system and an aeration biological filter device, which comprises a main water distribution channel and a plurality of water uniform distribution units, wherein each water uniform distribution unit is respectively communicated with the main water distribution channel, and the water uniform distribution units are respectively used for uniformly distributing waste water and respectively inputting the waste water into corresponding reaction tanks; the utility model provides a water distribution system and bological aerated filter device, compact structure, reasonable in design, on the one hand, can evenly distributed waste water, be favorable to the stable operation of bological filter device, on the other hand can effectively adjust waste water treatment capacity, and is convenient for carry out the back flush.
Description
Technical Field
The utility model relates to a biological sewage treatment technical field, concretely relates to water distribution system and biological aerated filter device.
Background
According to the requirements on black and odorous river treatment in the action plan for water pollution prevention, the target of black and odorous water body treatment is completed in the urban areas on the ground level and above before the end of 2020; at present, the government of the black and odorous river water body emergency treatment project in various regions clearly puts forward that the water quality of the discharged water needs to be executed according to the first-class B standard or the first-class A standard GB18918-2002 discharge Standard of pollutants for municipal Sewage treatment plants.
The aeration biological filter tank is a novel sewage treatment technology developed in Europe and America at the end of the last 80 th century, has a unique filler type design, uses the advantages of the biological filter tank and a biological contact oxidation method for reference, integrates various wastewater treatment processes such as filtration, adsorption, biological metabolism and the like, has the advantages of high hydraulic load, strong impact resistance, low sludge yield, no sludge bulking and the like, can effectively play a role in removing SS, COD, BOD, nitrification, denitrification, phosphorus removal and AOX (harmful substances), and is particularly suitable for treating municipal domestic sewage and treating black and odorous rivers.
However, the conventional biofilter device in the prior art is generally inconvenient to uniformly distribute the wastewater to be treated, which may cause the wastewater not to be uniformly distributed to each treatment unit (such as a reaction tank), not only resulting in poor wastewater treatment effect, but also seriously affecting the treatment capacity and treatment efficiency of the biofilter device, and on the other hand, being unfavorable for the stable operation of the biofilter device; in addition, the existing biological filter device also has the problems of complex structure, inconvenient adjustment of treatment capacity, inconvenient back washing and the like, and needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
For improving the defects existing in the prior art, the utility model provides a water distribution system which has compact structure and reasonable design, can evenly distribute waste water and can evenly distribute the waste water and a biological filter device provided with the water distribution system.
The utility model adopts the technical proposal that:
a water distribution system comprises a main water distribution channel and a plurality of water uniform distribution units, wherein each water uniform distribution unit is respectively communicated with the main water distribution channel, and the water uniform distribution units are respectively used for uniformly distributing waste water and respectively inputting the waste water into a reaction tank. In this scheme, through setting up total distribution canal to hold the waste water that needs to handle and eliminate the fluctuation of waste water as far as possible, then, the waste water can get into water equipartition unit respectively, then in getting into the reaction tank via water equipartition unit, realizes the function of evenly distributed waste water through water equipartition unit, makes the waste water that needs to handle can get into the reaction tank through water equipartition unit respectively in, thereby reaches the purpose of equipartition water.
In one scheme, the water uniform distribution unit comprises a water channel and water uniform distribution grooves arranged on two sides of the water channel, a water inlet weir plate is arranged between the water channel and the water uniform distribution grooves, one end of the water channel is communicated with the main water distribution channel, and the two water uniform distribution grooves in the same water uniform distribution unit are respectively communicated with the same reaction tank.
Preferably, the bottom of the water body uniform distribution groove is provided with an opening for connecting a water inlet pipe.
In another scheme, the total water distribution channel and the water uniform distribution unit are of an integral structure.
Preferably, the main water distribution channel is divided into a first water inlet tank and a second water inlet tank by a first partition plate, a plurality of baffles are arranged in the second water inlet tank and used for dividing the second water inlet tank into a plurality of water uniform distribution units, the first partition plate is provided with a plurality of water inlet holes, and the water inlet holes are respectively communicated with the water uniform distribution units.
Preferably, water inlet weir plates are respectively arranged in each water uniform distribution unit and on two sides of the water inlet hole, the two water inlet weir plates divide the water uniform distribution unit into a water passing groove and water uniform distribution grooves respectively located on two sides of the water passing groove, and openings used for connecting water inlet pipes are respectively arranged at the bottoms of the water uniform distribution grooves.
The biological aerated filter device comprises a water distribution system and a reaction tank, wherein the water distribution system is arranged in the reaction tank, a plurality of reaction chambers are arranged in the reaction tank, the bottom of each reaction chamber is respectively provided with a water distribution groove, the number of water uniform distribution units is the same as that of the reaction chambers, and each water uniform distribution unit is respectively communicated with the water distribution groove in the corresponding reaction chamber through a water inlet pipe.
Preferably, the reaction tank is of a cuboid structure, a plurality of partition plates are arranged in the reaction tank, the partition plates are arranged along the length direction of the reaction tank, and a plurality of reaction cavities are separated from the reaction tank.
Preferably, the water distribution system is welded or riveted or connected to the upper part of one side of the reaction tank through a bolt.
The reaction tank is characterized by further comprising a water outlet tank and overflow tanks respectively arranged in the reaction chambers, wherein the water outlet tank is arranged at one end of the reaction tank, the reaction chambers are respectively provided with overflowing holes, and the overflow tanks are respectively communicated with the water outlet tank through the corresponding overflowing holes.
Furthermore, a second partition plate is arranged in the water outlet groove, the second partition plate is provided with water outlet holes, overflow weir plates are arranged around the water outlet holes, the water outlet groove is divided into two areas by the second partition plate, a back flush wastewater pipe is connected to the bottom plate close to one side of the reaction tank, and a water outlet pipe is connected to the bottom plate of the other area and used for discharging the treated wastewater.
Compared with the prior art, the water distribution system and the biological aerated filter device provided by the utility model have the following beneficial effects:
1. the water distribution system has compact structure and reasonable design, can uniformly distribute the wastewater, and is favorable for the stable operation of the biological filter device.
2. The biological filter device comprises the water distribution system, and can effectively adjust the wastewater treatment capacity and facilitate backwashing.
3. This biological filter device adopts the steel construction to make, and the structure is simpler, need not be under construction at the scene, not only has characteristics such as construction cycle is short, area is littleer, is convenient for carry out the modularization equipment moreover, is favorable to shifting and removing, is particularly useful for black smelly river to administer and municipal wastewater emergency sewage interception is administered.
4. The biological filter device is provided with two sets of gas distribution devices to respectively configure process gas and backwashing gas for the reaction tank, so that the gas quantity of the process gas and the gas quantity of the backwashing gas can be independently controlled, the problems of uneven gas distribution, small gas quantity or overlarge gas quantity and the like in the prior art can be effectively avoided, and the influence on the growth and falling of a biological membrane of the biological filter can be avoided, so that the non-blocking biological aerated filter device has better wastewater treatment effect and treatment efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a top view of a water distribution system provided in embodiment 1 of the present invention.
Fig. 2 is a top view of another water distribution system provided in embodiment 1 of the present invention.
Fig. 3 is a front view of a biofilter unit according to embodiment 1 of the present invention.
Fig. 4 is a partial top view of fig. 3.
Fig. 5 is a partial left side view of fig. 3.
Fig. 6 is a partial plan view of the bottom of a biofilter unit according to example 1 of the present invention.
Fig. 7 is a sectional view of a single reaction chamber in a biofilter unit according to example 1 of the present invention.
Fig. 8 is a schematic cross-sectional view of a filter brick layer of a biofilter unit according to embodiment 1 of the present invention, in which first branch pipes and second branch pipes are arranged in a staggered manner.
Fig. 9 is a schematic cross-sectional view of an overflow trough in a biofilter unit according to example 1 of the present invention.
Fig. 10 is a side view of a joint between a trough plate and an effluent weir plate in a biofilter unit according to example 1 of the present invention.
Description of the drawings
A reaction tank 100, a side wall 101 of the reaction tank, a partition plate 102, a reaction chamber 103,
A main water distribution channel 201, a water uniform distribution unit 202, a water passing groove 202, a water uniform distribution groove 203, a water inlet weir plate 204, an opening 205, a first clapboard 206, a water inlet pipe 208, a water distribution groove 209, a water distribution cover plate 210, a support part 211, a first water inlet groove 212, a second water inlet groove 213, a baffle plate 214, a water inlet hole 215, a water outlet groove 203, a water outlet,
A filter brick layer 301, filter bricks 302,
An overflow channel 401, a channel plate 402, an effluent weir plate 403, a strip hole 404, an overflow port 405, a bolt 406,
A water outlet groove 501, a second clapboard 502, a water outlet hole 503, an overflow weir plate 504, a water outlet pipe 505, a back flush waste water pipe 506, a valve 507,
A filler 601,
A process gas main pipe 701, a first main pipe 702, a first branch pipe 703, a first joint 704, a second joint 705,
A main backwash gas pipe 801, a second main pipe 802, and a second branch pipe 803.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 3, 4 and 5, the embodiment provides a biofilter device, including a water distribution system and a reaction tank 100, where the water distribution system is disposed in the reaction tank 100, the water distribution system includes a main water distribution channel 201 and a plurality of water distribution units 202, each of the water distribution units 202 is respectively communicated with the main water distribution channel 201, a plurality of reaction chambers 103 are disposed in the reaction tank 100, the bottom of each reaction chamber 103 is respectively provided with a water distribution tank 209, the number of the water distribution units 202 is the same as that of the reaction chambers 103, each water distribution unit 202 is respectively communicated with the water distribution tank 209 in the corresponding reaction chamber 103 through a water inlet pipe 208, and the water distribution system is configured to uniformly distribute and input wastewater to be treated into the corresponding reaction chamber 103, so as to achieve the purpose of uniform distribution of water, thereby being more beneficial to treating wastewater.
For example, in this embodiment, the reaction tank 100 is a rectangular parallelepiped structure, a plurality of partition plates 102 are disposed in the reaction tank 100, the partition plates 102 are disposed along the length direction of the reaction tank 100, and a plurality of reaction chambers 103 are partitioned in the reaction tank 100, and each reaction chamber 103 is used for separately performing wastewater treatment, thereby being beneficial to improving the treatment effect.
As shown in fig. 4, in the present embodiment, a filter brick layer 301 and a filler 601 are respectively disposed in each reaction chamber 103, and the filler 601 is disposed above the filter brick layer 301 so as to purify waste water; the number of the water distribution grooves 209 in each reaction chamber 103 can be determined according to actual requirements, for example, in this embodiment, a water distribution groove 209 is respectively disposed at the middle position of the bottom of each reaction chamber 103, the water distribution grooves 209 are disposed along the length direction of the reaction chamber 103, when a plurality of water inlet pipes 208 are disposed, each water inlet pipe 208 is respectively connected to different positions on the side surface of each water distribution groove 209, the top of each water distribution groove 209 is provided with a plurality of water distribution cover plates 210, and a water passing gap is disposed between two adjacent water distribution cover plates 210, which can be used for overflowing wastewater and can effectively prevent blockage.
As shown in fig. 3 and 5, in order to support the filler 601, in a further embodiment, support members 211 are respectively disposed on both sides of the water distribution tank 209, and an upper surface of each support member 211 is flush with an upper surface of the water distribution cover plate 210. Therefore, the bottom of the reaction cavity 103 is a regular plane, which is convenient for installing the filter brick layer 301, and can uniformly bear the pressure of the filter brick layer 301 and the filler 601 above the filter brick layer 301, thereby realizing the stable support of the filter brick layer 301 and the filler 601 above the filter brick layer 301.
In a preferred scheme, the supporting part 211 may be a concrete structure or a steel frame structure, the steel frame structure includes a supporting frame and a supporting plate disposed at the top of the supporting frame, and an upper surface of the supporting plate is flush with an upper surface of the water distribution cover plate 210; it will be appreciated that when the support member 211 is a steel frame structure, the support plate should have a good sealing effect with the side wall of the reaction chamber 103 and the water distribution tank 209, such as welding, so as to effectively prevent the waste water to be treated from flowing below the support plate and forming dead water.
In order to facilitate uniform distribution of water bodies, in a preferred embodiment, the water uniform distribution unit 202 includes a water passing tank 202 and water uniform distribution grooves 203 disposed at two sides of the water passing tank 202, a water inlet weir plate 204 is disposed between the water passing tank 202 and the water uniform distribution grooves 203, as shown in fig. 1, so as to maintain the height of wastewater, so that wastewater can stably and uniformly enter the reaction tank 100, one end of the water passing tank 202 is communicated with the main water distribution channel 201, two water uniform distribution grooves 203 in the same water uniform distribution unit 202 are respectively used for communicating with the same reaction tank 100, specifically, in this embodiment, two water uniform distribution grooves 203 in the same water uniform distribution unit 202 are respectively used for communicating with the same reaction chamber 103 in the same reaction tank 100, as shown in fig. 4 and 5, openings 205 for connecting water inlet pipes 208 are respectively disposed at the bottoms of the water uniform distribution grooves 203, and the two openings 205 of the same water uniform distribution unit 202 are respectively communicated with water distribution grooves 209 in corresponding reaction chambers 103 through two water inlet pipes 208 And the water distribution tank is communicated with and connected to different positions of the water distribution tank 209, so that water bodies can be distributed uniformly.
In another preferred scheme, the main distribution channel 201 and the water uniform distribution unit 202 can be of an integral structure. For example, as shown in fig. 2, 3 and 4, in one embodiment, the main water distribution channel 201 is divided into a first water inlet groove 212 and a second water inlet groove 213 by a first partition plate 206, a plurality of baffles 214 are disposed in the second water inlet groove 213 for dividing the second water inlet groove 213 into a plurality of water distribution units 202, the first partition plate 206 is provided with a plurality of water inlet holes 215, and the water inlet holes 215 are respectively communicated with the water distribution units 202, so that the wastewater can enter the water distribution units 202 in the second water inlet groove 213 through the first water inlet groove 212 and the water inlet holes 215 of the main water distribution channel 201, so as to uniformly distribute the wastewater, thereby facilitating the uniform distribution of the water and achieving a better wastewater treatment effect.
As shown in fig. 2 and 4, in a preferred embodiment, water inlet weir plates 204 are respectively disposed in each water body uniform distribution unit 202 and on two sides of the water inlet hole 215, the two water inlet weir plates 204 divide the water body uniform distribution unit 202 into a water passing trough 202 and water body uniform distribution troughs 203 respectively located on two sides of the water passing trough 202, and openings 205 for connecting water inlet pipes 208 are respectively disposed at bottoms of the water body uniform distribution troughs 203. By adopting the design, on one hand, the wastewater can uniformly enter the reaction cavity 103 by utilizing the gravity of the wastewater; on the other hand, waste water gets into behind the first intake antrum 212, can be so that the flow of waste water is more steady, and can be through the steady and even outflow of intake weir plate 204, in addition, the height of intake weir plate 204 is certain, thereby make the liquid level height between the tip of second intake antrum 213 and the intake weir plate 204 that corresponds relatively more stable, thereby make waste water can be more even get into reaction chamber 103 through the inlet tube 208 that corresponds, and adopt two inlet tubes 208 to supply water, and with waste water drainage to reaction chamber 103 different positions department, thereby reach the purpose of equipartition waste water.
In a preferred embodiment, the water distribution system may be connected to an upper portion of one side of the reaction tank 100 by welding or riveting or by bolts 406, as shown in fig. 3, so as to feed the wastewater into the reaction tank 100 by gravity.
In this embodiment, the water distribution system, the water outlet tank 501, the overflow tank 401 and the reaction tank 100 may be made of steel structures instead of concrete structures, and other components required to be installed in the reaction tank 100 are integrated in the reaction tank 100 and form an integrated structure, so that the biofilter device does not need to be constructed on site, and has the characteristics of short construction period, small floor area and the like, is convenient for modular assembly, is beneficial to transfer and movement, and is particularly suitable for black and odorous river treatment and municipal wastewater emergency sewage interception treatment.
In a preferred scheme, the reactor further comprises a water outlet tank 501 and overflow tanks 401 respectively arranged in the reaction cavities 103, wherein the water outlet tank 501 is arranged at one end of the reaction tank 100 and is parallel to the main water distribution channel 201, each reaction cavity 103 is respectively provided with an overflowing hole, and each overflow tank 401 is respectively communicated with the water outlet tank 501 through the corresponding overflowing hole; the wastewater treated by the reaction chamber 103 can overflow into the overflow groove 401 and enter into the water outlet groove 501 along the overflow groove 401, so that the treated wastewater can be smoothly output from the biofilter device.
In order to improve the water outlet efficiency, as shown in fig. 4, in a further scheme, each reaction chamber 103 includes two overflow tanks 401, and the two overflow tanks 401 are respectively disposed at two sides of the reaction chamber 103 (disposed at the partition plate 102 and the partition plate 102, or the partition plate 102 and the side wall 101 of the reaction tank), so as to effectively improve the wastewater treatment efficiency.
In a preferred embodiment, at least one side wall of the overflow trough 401 is an effluent weir plate 403 or is provided with an effluent weir plate 403, for example, as shown in fig. 9 and 10, in this embodiment, the overflow trough 401 is surrounded by a side wall of the reaction chamber 103 (partition plate 102 or side wall 101 of the reaction tank) and a trough plate 402 welded to the side wall, and the top of the trough plate 402 is disposed at the overflow port 405 or the trough plate 402 is connected with the effluent weir plate 403 with adjustable height; in this embodiment, the trough plate 402 is disposed along the length direction of the reaction chamber 103, the trough plate 402 is provided with a through hole, the water outlet weir plate 403 is provided with a strip hole 404, the top of the water outlet weir plate 403 is provided with an overflow port 405, and the trough plate 402 and the water outlet weir plate 403 are connected by a bolt 406, so that the height of the water outlet weir plate 403 can be effectively adjusted, the purpose of adjusting the water outlet height is achieved, and the adjustment of the wastewater amount of the whole reaction tank 100 is facilitated.
In order to facilitate back flushing, in a further scheme, a second partition plate 502 is arranged in the water outlet tank 501, the second partition plate 502 is provided with a water outlet hole 503, an overflow weir plate 504 is arranged around the water outlet hole 503, the water outlet tank 501 is divided into two areas by the second partition plate 502, a back flushing wastewater pipe 506 is connected to the bottom plate of the area close to one side of the reaction tank 100, and a water outlet pipe 505 is connected to the bottom plate of the other area for discharging treated wastewater. As shown in fig. 3 and 4, in this embodiment, a valve 507, such as an electromagnetic valve 507, when the back flushing is not performed, the valve 507 is in a closed state, so that the purified wastewater (cleaning water) overflowing from the reaction chamber 103 can be discharged through the water outlet pipe 505, during the back flushing, the valve 507 is in an open state, so that the back flushing wastewater overflowing from the reaction chamber 103 is blocked by the overflow weir plate 504, can be directly discharged out of the reaction chamber 103 through the back flush wastewater pipe 506, cannot be directly discharged due to pollution of the back flush wastewater, needs to be treated, therefore, the backwash wastewater pipe 506 is generally communicated with the main distribution channel 201, so that backwash wastewater can be conveniently input into the main distribution channel 201 for subsequent wastewater treatment.
In this embodiment, each reaction chamber 103 is further provided with a first gas distribution device for distributing process gas, so as to provide process gas (i.e. aeration) required by microorganisms to the reaction chamber 103, so that the reaction chamber 103 can normally operate and purify wastewater; for example, as shown in fig. 3, fig. 5, fig. 6, fig. 7, and fig. 8, the first gas distribution device includes a process gas main pipe 701 and a process gas uniform distribution device, the process gas uniform distribution device includes a first main pipe 702 and a plurality of first branch pipes 703, one end of each of the first branch pipes 703 is connected to the first main pipe 702, the other end is sealed, a plurality of first gas holes are disposed on a side surface of the first branch pipe 703, and the process gas input from the blower sequentially passes through the first main pipe 702 and the first branch pipes 703 and enters the reaction chamber 103 through the first gas holes of the first branch pipes 703, so that the process gas can be uniformly distributed on a cross section where the process gas uniform distribution device is located in the reaction chamber 103; the lower end of the process gas main pipe 701 is communicated with the first main pipe 702, the upper end of the process gas main pipe 701 is used for connecting a gas supply device or a gas supply pipeline, and the amount of the process gas can be independently controlled by using a first gas distribution device, as shown in fig. 7 and 8, in this embodiment, the process gas uniform distribution device is arranged below the filter brick layer 301.
In this embodiment, each reaction chamber 103 is further provided with a second gas distribution device for providing back-flushing gas, so as to periodically back-flush the filler 601, so that the reaction chambers 103 can maintain efficient wastewater treatment efficiency; for example, as shown in fig. 3, fig. 5, fig. 6, fig. 7, and fig. 8, the second gas distribution device includes a main backwash gas distribution pipe 801 and a backwash gas distribution device, the backwash gas distribution device includes a main backwash gas distribution pipe 802 and a plurality of second branch pipes 803, one end of each of the second branch pipes 803 is connected to the main backwash gas distribution pipe 802, the other end of each of the second branch pipes is sealed, a plurality of second gas holes are formed in the side surface of each of the second branch pipes 803, backwash gas input from a blower sequentially passes through the main backwash gas distribution pipe 802 and the second branch pipes 803, and respectively enters the reaction chamber 103 through the second gas holes of the second branch pipes 803, so that backwash gas can be uniformly distributed on the cross section of the backwash gas distribution device in the reaction chamber 103; the lower end of the main back-flushing gas pipe 801 is communicated with the second main pipe 802, the upper end of the main back-flushing gas pipe 801 is used for connecting a gas supply device or a gas supply pipeline, and the amount of the process gas can be independently controlled by using the second gas distribution device, as shown in fig. 7 and 8, in this embodiment, the process gas uniform distribution device is arranged below the filter brick layer 301.
In order to distribute the process gas and the backwash gas more uniformly in the reaction chamber 103, in the preferred embodiment provided in this embodiment, the process gas uniform distribution device and the backwash gas uniform distribution device are arranged in a staggered manner, so that the gas discharged from the process gas uniform distribution device and the backwash gas uniform distribution device can be uniformly distributed, as shown in fig. 7 and 8, in this embodiment, two sets of gas distribution devices are provided to respectively configure the process gas and the backwash gas for the reaction chamber 103, so as to independently control the gas amount of the process gas and the gas amount of the backwash gas, thereby effectively avoiding the problems of uneven gas distribution, too small or too large gas amount, and the like existing in the prior art, and avoiding affecting the growth and falling of the biofilm in the biofilter, so that the biofilter device has better wastewater treatment effect and treatment efficiency.
It can be understood that the air supply device may be a blower commonly used in the prior art, the first air distribution device and the second air distribution device may be connected to two blowers respectively, or may be connected to the same blower, and when one blower is used, a control valve, such as a three-way valve, needs to be configured to control the conveying direction of the air.
In the wastewater treatment process, the required amount of process gas and the required amount of backwash gas have great difference, so the size and the number of the first air holes on the first branch pipe 703 and the size and the number of the second air holes on the second branch pipe 803 can be respectively different, so as to meet the requirement that the amount of process gas and the amount of backwash gas are different, thereby effectively avoiding the problems that the growth and the falling of a biological membrane of a biological filter are influenced, and the treatment effect is influenced, and the like, because the uneven distribution of gas, the too small amount of gas or the too large amount of gas which occur when the same set of gas distribution device is adopted.
For convenience of connection and installation, in a preferred scheme, two ends of the first main pipe 702 and the second main pipe 802 are respectively closed, and a first joint 704 and a plurality of second joints 705 are arranged on the side surfaces of the first main pipe 702 and the second main pipe 802, wherein the first joint 704 is used for connecting the process gas main pipe 701 or the back flush gas main pipe 801, and the second joints 705 are used for connecting the first branch pipes 703 or the second branch pipes 803. It is understood that the first joint 704 and the second joint 705 may be pipe joints commonly used in the art, such as flange joints, and the like, and are not described herein again.
In order to make the structure of the non-clogging biological aerated filter device more compact and the layout more reasonable, in a preferred scheme, the first main pipe 702 and the second main pipe 802 are respectively arranged at two sides of the reaction cavity 103 so as to carry out pipe connection operation during assembly; the first branch pipes 703 and the second branch pipes 803 are distributed alternately, that is, the first branch pipes 703 and the second branch pipes 803 may be staggered with each other, so that the first branch pipes 703 and the second branch pipes 803 are distributed alternately.
In this embodiment, the process gas uniform distribution device and the backwash gas uniform distribution device are respectively disposed above the water distribution tank 209 and the support member 211, the filter brick layer 301 is formed by assembling a plurality of adjacently disposed filter bricks 302, and the filter brick layer 301 is disposed above the process gas uniform distribution device and the backwash gas uniform distribution device, as shown in fig. 3 and 7, gas discharged from the first branch pipe 703 and the second branch pipe 803 can respectively move upward through a gap between two adjacent filter bricks 302 of the filter brick layer 301, and by adopting such a design, on one hand, gas distribution is more uniform, on the other hand, blockage can be effectively prevented, and the filler 601 can be directly disposed on the filter brick layer 301.
The flow for distributing water by adopting the biofilter device provided by the embodiment comprises the following steps: the wastewater enters a first water inlet groove 212 of a main water distribution channel 201 through a lift pump, enters a second water inlet groove 213 through a water inlet hole 215, then enters a water distribution groove 209 at the bottom of a reaction cavity 103 through a water body uniform distribution unit 202 and a water inlet pipe 208 to realize uniform distribution of water bodies, then overflows upwards through a water gap between two adjacent water distribution cover plates 210 and enters the lower part of a filter brick layer 301, overflows upwards through gaps among filter bricks 302 in the filter brick layer 301, then continuously overflows upwards and passes through a filler 601, and sequentially enters an overflow groove 401 and a water outlet groove 501, when backwashing is not performed, a valve 507 arranged on a backwashing wastewater pipe 506 is closed, and the purified wastewater can enter a water outlet pipe 505 through a water outlet hole 503 and an overflow weir plate 504 and is discharged through the water outlet pipe 505; if the valve 507 provided in the backwash wastewater pipe 506 is opened during the backwash, the backwash wastewater can be discharged through the backwash wastewater pipe 506.
The process of configuring the process gas (namely aeration) by adopting the biofilter device provided by the embodiment comprises the following steps: the process gas enters the first main pipe 702 through the process gas main pipe 701 under the action of the blower, and synchronously enters each first branch pipe 703 through the first main pipe 702, finally uniformly enters the lower part of the filter brick layer 301 in the reaction cavity 103 through the first air holes on each first branch pipe 703, and then the process gas moves upwards through the gaps among the filter bricks 302 in the filter brick layer 301, finally passes through the filler 601 and is discharged out of the reaction cavity 103, and the purpose of supplying the microorganisms in the reaction cavity 103 is achieved in the process.
Similarly, the flow of the backwash gas configured by the biofilter device provided by the embodiment is as follows: the backwash gas enters the second main pipe 802 through the backwash gas main pipe 801 under the action of the blower, enters the second branch pipes 803 through the second main pipe 802 synchronously, finally enters the lower part of the filter brick layer 301 in the reaction cavity 103 through the second air holes on the second branch pipes 803, then moves upwards through the gaps among the filter bricks 302 in the filter brick layer 301, finally passes through the filler 601 and is discharged out of the reaction cavity 103, and the purpose of flushing the filler 601 is achieved in the process.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (9)
1. A water distribution system is characterized by comprising a main water distribution channel and a plurality of water uniform distribution units, wherein each water uniform distribution unit is respectively communicated with the main water distribution channel,
the water uniform distribution unit comprises a water passing groove and water uniform distribution grooves arranged on two sides of the water passing groove, a water inlet weir plate is arranged between the water passing groove and the water uniform distribution grooves, one end of the water passing groove is communicated with the main water distribution channel, two water uniform distribution grooves in the same water uniform distribution unit are respectively used for communicating the same reaction tank,
the water uniform distribution units are respectively used for uniformly distributing the wastewater and respectively inputting the wastewater into the reaction tanks.
2. The water distribution system of claim 1, wherein the bottom of the water equalization trough is provided with an opening for connection to a water inlet pipe.
3. The water distribution system of claim 1, wherein the main distribution channel is integral with the water distribution unit.
4. The water distribution system of claim 3, wherein the main distribution channel is divided into a first inlet channel and a second inlet channel by a first partition, wherein a plurality of baffles are disposed in the second inlet channel for dividing the second inlet channel into a plurality of water distribution units, wherein the first partition is provided with a plurality of inlet holes, and wherein each inlet hole is respectively communicated with the water distribution units.
5. The water distribution system of claim 4, wherein water inlet weir plates are respectively arranged in each water uniform distribution unit and on two sides of the water inlet hole, the two water inlet weir plates divide the water uniform distribution unit into a water passing trough and water uniform distribution troughs respectively positioned on two sides of the water passing trough, and openings for connecting water inlet pipes are respectively arranged at the bottoms of the water uniform distribution troughs.
6. An aeration biological filter pool device, which is characterized in that the device comprises the water distribution system and a reaction pool according to any one of claims 1 to 5, wherein the water distribution system is arranged in the reaction pool, a plurality of reaction cavities are arranged in the reaction pool, the bottom of each reaction cavity is respectively provided with a water distribution groove, the number of the water uniform distribution units is the same as that of the reaction cavities, and each water uniform distribution unit is respectively communicated with the water distribution groove in the corresponding reaction cavity through a water inlet pipe.
7. A biological aerated filter apparatus according to claim 6, wherein the reaction tank is of a rectangular parallelepiped configuration, and a plurality of partition plates are provided in the reaction tank, the partition plates being disposed along the length of the reaction tank and dividing the reaction tank into a plurality of reaction chambers.
8. An aeration biological filter device according to claim 6, further comprising a water outlet tank and overflow tanks respectively arranged in each reaction chamber, wherein the water outlet tank is arranged at one end of the reaction chamber, each reaction chamber is respectively provided with an overflowing hole, and each overflow tank is respectively communicated with the water outlet tank through the corresponding overflowing hole.
9. A biological aerated filter device according to claim 8, wherein a second baffle is provided in the outlet tank, the second baffle is provided with an outlet hole, an overflow weir plate is provided around the outlet hole, the second baffle divides the outlet tank into two regions, a back flush wastewater pipe is connected to the bottom plate of one region near the reaction tank, and an outlet pipe is connected to the bottom plate of the other region for discharging the treated wastewater.
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