CN211170340U - High-suspension wastewater treatment device for biological aerated filter - Google Patents
High-suspension wastewater treatment device for biological aerated filter Download PDFInfo
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- CN211170340U CN211170340U CN201922008383.8U CN201922008383U CN211170340U CN 211170340 U CN211170340 U CN 211170340U CN 201922008383 U CN201922008383 U CN 201922008383U CN 211170340 U CN211170340 U CN 211170340U
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- sludge
- filter
- aeration
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- pipeline
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- 239000000725 suspension Substances 0.000 title claims abstract description 16
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 14
- 239000010802 sludge Substances 0.000 claims abstract description 95
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 238000005273 aeration Methods 0.000 claims abstract description 55
- 238000001914 filtration Methods 0.000 claims abstract description 36
- 238000011001 backwashing Methods 0.000 claims abstract description 35
- 239000007921 spray Substances 0.000 claims abstract description 13
- 238000011084 recovery Methods 0.000 claims abstract description 10
- 238000007790 scraping Methods 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 21
- 238000000746 purification Methods 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 239000000945 filler Substances 0.000 abstract description 7
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 description 11
- 238000007599 discharging Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Abstract
The utility model relates to a high-suspension wastewater treatment device of an aeration biological filter, which comprises a filter and an aeration biological filter, wherein a back flush spray pipe is arranged in a water inlet area right below the aeration biological filter, and a plurality of back flush spray heads are arranged on the back flush spray pipe; a sludge discharge tank is arranged on one side of the filter tank, the sludge discharge tank is communicated with a sludge discharge port at the bottom of the filter tank through a sludge discharge pipeline, the sludge discharge tank is communicated with a sludge dewatering device through a sludge pipeline provided with a lift pump, and a water outlet of the sludge dewatering device is communicated with a water inlet pipe through a recovery pipeline; sludge generated after aeration filtration can be discharged in time, and the sludge in the filter tank is fully cleaned by matching with backwashing, so that the phenomena of filler hardening and the like are avoided, the pollutant carrying capacity of the filter tank is enhanced, meanwhile, the cleaned sludge is subjected to sludge treatment after backwashing, water in the sludge is separated out, the separated water is flushed into a filter tank for filtering treatment, the utilization rate of water resources is effectively improved, and the waste of water resources is avoided.
Description
Technical Field
The utility model relates to an aeration biofiltration technical field, concretely relates to high suspension effluent treatment plant of aeration biofilter.
Background
The Biological Aerated Filter (BAF) is a special form of biological contact oxidation process, i.e. a bioreactor is filled with granular filler with high specific surface area to provide a carrier for microbial film growth, aeration is provided at the lower part of a filter material layer, air is contacted with sewage in a reverse or same direction, organic pollutants in the sewage and the biofilm on the surface of the filler are degraded through biochemical reaction, and the filler simultaneously plays a role in physical filtration. The Biological Aerated Filter (BAF) integrates adsorption, oxidation and filtration, and the biomembrane is renewed by periodic back washing; the oxygen transmission efficiency is high, the oxygen supply power consumption is small, the treatment effect is good, particularly, the treatment effect on ammonia nitrogen is obvious, the sludge amount is small, the effluent suspended matter is low, and a sedimentation tank can not be arranged subsequently.
However, the biological aerated filter is not provided with a sludge discharge function, the removal of the adsorbed suspension is realized only by backwashing, the pollutant carrying capacity is limited, and when high-suspension wastewater enters, the phenomena of filler hardening and the like are easily caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a high-suspension wastewater treatment device for an aeration biological filter, which can remove the sludge in a UI aeration tank in time, enhance the pollutant carrying capacity of the filter, reduce the occurrence of phenomena such as hardening of filter materials caused by sludge accumulation and the like
In order to achieve the purpose, the utility model adopts the following technical scheme, a high-suspension wastewater treatment device of an aeration biological filter, which comprises a filter, an aeration biological filter device which is arranged in the filter and divides the filter into a water purification area and a water inlet area from top to bottom, wherein the filter on the outer wall of the water inlet area is provided with a water inlet pipe communicated with the water inlet area, the aeration biological filter device is internally provided with an aeration pipe, the aeration pipe is provided with a plurality of aeration ports, the end part of the aeration pipe is communicated with an aeration inlet pipeline arranged outside the filter, a back washing spray pipe is arranged in the water inlet area right below the aeration biological filter device, the back washing spray pipe is provided with a plurality of back washing nozzles, the back washing nozzles are just opposite to the bottom of the aeration biological filter device, and one side of the back;
one side of filtering pond is equipped with row mud pond, arrange the mud mouth of mud pond and filtering pond bottom and pass through row mud pipeline intercommunication, and be equipped with the mud valve on this row mud pipeline, arrange the mud pond and communicate with sludge dewatering device through the mud pipeline that is equipped with the elevator pump, sludge dewatering device's delivery port and inlet tube pass through the recovery pipeline intercommunication.
The water inlet end of the back flushing pipeline extends to the upper part of the filter tank and is communicated with the water purification area, and a back flushing pump is arranged on the back flushing pipeline.
The mud discharging port is a horn-mouth-shaped mud discharging port, and the diameter of the horn-shaped mud discharging port in the filter tank is reduced in outward smooth transition.
The sludge dewatering device comprises a sludge dewatering tank body, a sludge water inlet and a sedimentation water outlet are respectively arranged on two sides of the upper end of the sludge dewatering tank body, a plurality of flow baffle plates vertical to the bottom of the sludge dewatering tank body are arranged in the sludge dewatering tank body, each flow baffle plate is provided with a flow opening, the position of the flow opening on the flow baffle plate close to the end part of the sludge water inlet is lower than the positions of the flow openings on other flow baffle plates, and the sedimentation water outlet is communicated with a recovery pipeline.
The position of the flow opening on the flow baffle close to the end part of the sludge water inlet is positioned at the middle lower part of the flow baffle, and the positions of the flow openings on other flow baffles are positioned at the middle upper part of the flow baffle.
And a sludge scraping device used for scraping sludge precipitated at the bottom of the filter tank to one side of a sludge discharge port is arranged at the bottom of the filter tank.
The mud scraping device is including establishing in the filtering pond bottom and with the mud scraping plate of filtering pond bottom perpendicular contact, the both sides of mud scraping plate respectively with the filtering pond around both ends be equipped with remove nut and slider fixed connection, both ends be equipped with respectively with filtering pond both sides vertically slide bar and drive screw around the filtering pond, remove nut threaded connection on drive screw, the slider cover is established on the slide bar, and this slider slides along the slide bar, one side of filtering pond is fixed and is equipped with drive motor, this drive motor's transmission shaft extends to in the filtering pond in drive screw fixed connection, and drives drive screw and rotate.
And a plurality of water leakage holes are formed in the mud scraping plate.
The utility model has the advantages that: sludge generated after aeration filtration can be discharged in time, and the sludge in the filter tank is fully cleaned by matching with backwashing, so that the phenomena of filler hardening and the like are avoided, the pollutant carrying capacity of the filter tank is enhanced, meanwhile, the cleaned sludge is subjected to sludge treatment after backwashing, water in the sludge is separated out, the separated water is flushed into a filter tank for filtering treatment, the utilization rate of water resources is effectively improved, and the waste of water resources is avoided.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of a side view of the mud scraping device of the present invention;
FIG. 3 is a schematic view of the top mounting structure of the mud scraping device of the utility model;
FIG. 4 is a schematic structural view of the sludge dewatering device of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" 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 otherwise specified.
Examples
As shown in fig. 1, a high-suspension wastewater treatment device for an aeration biological filter tank comprises a filter tank 1 and an aeration biological filter device 4 arranged in the filter tank 1 and dividing the filter tank 1 into a water purification area 5 and a water inlet area 6 from top to bottom, wherein a water inlet pipe 7 communicated with the water inlet area 6 is arranged on the filter tank 1 on the outer wall of the water inlet area 6, an aeration pipe 10 is arranged in the aeration biological filter device 4, a plurality of aeration ports are arranged on the aeration pipe 10, the end part of the aeration pipe 10 is communicated with an aeration inlet pipeline 9 arranged outside the filter tank 1, a back washing spray pipe 8 is arranged in the water inlet area 6 right below the aeration biological filter device 4, a plurality of back washing nozzles 11 are arranged on the back washing spray pipe 8, the back washing nozzles 11 are right opposite to the bottom of the aeration biological filter device 4, and one side of the back washing spray; the aeration biological filtering device 4 is the most commonly used filtering device at present, particularly, the aeration biological filtering device is filled with granular fillers with high specific surface area to provide carriers for microbial film growth, the aeration pipe 10 provides aeration for the aeration biological filtering device, and the aeration mainly provides oxygen for microbial growth in the filtering device; in the using process, the sewage enters the filtering tank through the water inlet pipe 7, in order to ensure that the water inlet pipe 7 only feeds water but does not discharge water, the water inlet pipe 7 can be provided with a one-way valve to ensure that the sewage can not flow back, namely, the sewage enters the filtering tank, the water level is continuously increased and enters the aeration biological filtering device from top to bottom, the sewage is biologically filtered, and the sewage passing through the biological filtering device is purified and discharged through the purifying area due to the continuous rising of the water level, when the aeration biofilter needs to be backwashed and cleaned, the water inlet pipe 7 stops feeding water, the drain outlet is opened at the moment, the water in the water purification area descends to carry out the backwashing for one time on the aeration biofilter, meanwhile, the back washing water enters the aeration biological filtering device through the back washing pipeline to carry out secondary back washing on the aeration biological filtering device, so that the sludge in the aeration biological filtering device can be fully cleaned;
meanwhile, in order to ensure that the sludge precipitated at the bottom of the filter tank can be cleaned out in the filtering process, the pollutant carrying capacity of the filter tank is improved, and the hardening of the filter material caused by sludge accumulation is reduced;
one side of the filter tank 1 is provided with a sludge discharge tank 2, the sludge discharge tank 2 is communicated with a sludge discharge port 12 at the bottom of the filter tank 1 through a sludge discharge pipeline, a sludge discharge valve 13 is arranged on the sludge discharge pipeline, the sludge discharge tank 2 is communicated with a sludge dewatering device 3 through a sludge pipeline provided with a lift pump 14, and a water outlet of the sludge dewatering device 3 is communicated with a water inlet pipe 7 through a recovery pipeline 18. The mud that deposits in the filtering pond bottom enters into row mud pond 2 through the mud valve and collects, when collecting, mud and sewage that collect in the row mud pond go into sludge dewatering device 3 through elevator pump 14 pump and carry out the sedimentation processing, the supernatant after the sediment enters into inlet tube 7 through retrieving pipeline 18, carry out biofiltration processing in newly entering into the filtering pond, the water of back flush and mud washing has been retrieved and has been recycled, the waste of resource has been avoided, simultaneously through carrying out timely clearance with the mud in the filtering pond, avoid mud the phenomenon that hardens to appear in the filtering pond, cause the sewage treatment effect in filtering pond to take place to degrade.
When the biological aerated filter is backwashed through the backwashing nozzle, the backwashing water level is ensured to be pure water, no impurities enter the biological aerated filter in the backwashing process, the water inlet end of the backwashing pipeline 16 extends to the upper part of the filter 1 to be communicated with the water purification area 5, and the backwashing pipeline 16 is provided with a backwashing pump 17. When the backwashing is needed, the backwashing pump 17 is started to pump the treated water in the water purification area into the backwashing nozzle, and the backwashing treatment is carried out on the aeration biological filter device.
In order to stably feed the sludge in the filter tank into the sludge discharge tank, the sludge discharge port 12 is a bell-mouth-shaped sludge discharge port, and the diameter of the bell-mouth-shaped sludge discharge port in the filter tank 1 is reduced in outward smooth transition. The inboard bore of filtering pond is big, can make abundant entering into of mud in the mud discharging port, and outside bore diminishes gradually, can promote the velocity of flow that makes the mud water that enters into in the mud discharging port, makes its quick entering into in the mud discharging pipeline through the mud discharging port and then entering into mud discharging pond 2.
In order to allow sludge water to enter the sludge dewatering device and to rapidly settle and separate sludge and water, as shown in fig. 4, the sludge dewatering device 3 includes a sludge dewatering tank 301, a sludge water inlet 302 and a settling water outlet 303 are respectively disposed on two sides of an upper end of the sludge dewatering tank 301, a plurality of flow baffles 304 perpendicular to a bottom of the sludge dewatering tank 301 are disposed in the sludge dewatering tank 301, each flow baffle 304 is provided with a flow opening 305, a position of the flow opening 305 on the flow baffle 304 near an end of the sludge water inlet 302 is lower than positions of the flow openings 305 on other flow baffles 304, and the settling water outlet 303 is communicated with the recovery pipeline 18.
The flow opening 305 of the baffle plate 304 near the end of the sludge inlet 302 is located at the lower middle portion of the baffle plate 304, and the flow openings 305 of the other baffle plates 304 are located at the upper middle portion of the baffle plate 304.
The sludge enters the leftmost cavity through the sludge inlet 302 and firstly enters the leftmost cavity shown in fig. 4, because the flow opening on the leftmost baffle plate is lower, part of the sludge can be blocked, most of the sludge water passes through the flow opening on the baffle plate and enters the middle cavity, because the position of the flow opening on the baffle plate on the right side of the middle cavity is higher, the sewage entering the middle cavity is deposited for one time, because the water level rises continuously, supernatant liquid deposited in the middle cavity enters the cavity of the next stage through the flow opening in sequence and the like for multiple times of deposition, and the supernatant liquid enters the last cavity for final deposition and then enters the recovery pipeline 18 and the water inlet pipe 7 through the deposition water outlet, and then enters the filter tank for treatment from a new time, the sewage is recovered and reused, in order to accelerate the flow rate of the recovered water, a recovery pump may be provided on the recovery line to accelerate recovery of water.
Further, in order to ensure that the sludge at the bottom of the filter tank can be sufficiently cleaned, a sludge scraping device 15 for scraping the sludge precipitated at the bottom of the filter tank 1 to one side of the sludge discharge port 12 is arranged at the bottom of the filter tank 1.
The mud scraping device 15 as shown in fig. 2 and fig. 3 comprises a mud scraping plate 1501 which is arranged at the bottom of the filter tank 1 and vertically contacted with the bottom of the filter tank 1, wherein two sides of the mud scraping plate 1501 are respectively fixedly connected with a moving nut 1502 and a sliding block 1504 which are arranged at the front end and the rear end of the filter tank 1, the front end and the rear end of the filter tank 1 are respectively provided with a sliding rod 1505 and a transmission screw 1503 which are vertical to two sides of the filter tank 1, the moving nut 1502 is in threaded connection with the transmission screw 1503, the sliding block 1504 is sleeved on the sliding rod 1505, the sliding block 1504 slides along the sliding rod 1505, one side of the filter tank 1 is fixedly provided with a transmission motor 1507, and a transmission shaft of the transmission motor 1507 extends into the filter tank 1 and. The filter comprises a filter chamber, a transmission screw rod, a sliding block, a bearing, a driving motor, a driving screw rod, a movable nut, a mud scraping plate and a mud scraping plate, wherein the transmission screw rod and the sliding rod can be arranged in the front wall and the rear wall of the filter chamber, holes parallel to the sliding rod and the transmission screw rod are formed in the front wall and the rear wall of the filter chamber, the two sides of the scraping plate can be fixedly connected with the sliding block and the movable nut, the two ends of the sliding rod are fixedly connected with the filter chamber, the two sides of the transmission screw rod are connected with the filter chamber through the bearing, the transmission screw rod can be rotated, the transmission motor drives the transmission screw rod to rotate, the movable nut moves left and right on. Can ensure that the sludge at the bottom of the filter tank is fully treated.
In order to ensure that the power of the scraper is reduced during the scraping process, a plurality of water leakage holes 1506 are arranged on the scraper plate 1501. During the mud scraping process, water in the mud can be left through the water leakage holes 1506, and the power required by the mud scraping is reduced.
The above embodiments are merely examples of the present invention, and do not limit the protection scope of the present invention, and all designs the same as or similar to the present invention belong to the protection scope of the present invention.
Claims (8)
1. A high-suspension wastewater treatment device of an aeration biological filter tank comprises the filter tank (1), and an aeration biological filter device (4) which is arranged in the filter tank (1) and divides the filter tank (1) into a water purification area (5) and a water inlet area (6) from top to bottom, wherein a water inlet pipe (7) communicated with the water inlet area (6) is arranged on the filter tank (1) at the outer wall of the water inlet area (6), an aeration pipe (10) is arranged in the aeration biological filter device (4), a plurality of aeration ports are arranged on the aeration pipe (10), the end part of the aeration pipe (10) is communicated with an aeration inlet pipeline (9) arranged outside the filter tank (1), a backwashing spray pipe (8) is arranged in the water inlet area (6) under the aeration biological filter device (4), a plurality of backwashing spray nozzles (11) are arranged on the backwashing spray pipe (8), and the backwashing spray pipe (11) is just opposite to the bottom of the biological filter device (, one side of the back washing spray pipe (8) is communicated with a back washing pipeline (16) outside the filter tank (1); it is characterized in that the preparation method is characterized in that,
one side in filtering pond (1) is equipped with row mud pond (2), arrange mud pond (2) and the row mud mouth (12) of filtering pond (1) bottom through arranging mud pipeline intercommunication, and be equipped with mud valve (13) on this row mud pipeline, arrange mud pond (2) and sludge dewatering device (3) intercommunication through the sludge pipeline that is equipped with elevator pump (14), the delivery port and the inlet tube (7) of sludge dewatering device (3) are through retrieving pipeline (18) intercommunication.
2. A high-suspension wastewater treatment device for an aeration biological filter tank as claimed in claim 1, wherein the water inlet end of the back flush pipeline (16) extends to the upper part of the filter tank (1) to be communicated with the water purification area (5), and the back flush pipeline (16) is provided with a back flush pump (17).
3. A high-suspension wastewater treatment device for an aeration biological filter tank as claimed in claim 1, wherein the sludge discharge port (12) is a bell-mouth-shaped sludge discharge port, and the diameter of the bell-mouth-shaped sludge discharge port located in the filter tank (1) is reduced in outward smooth transition.
4. An aeration biological filter tank high suspension wastewater treatment device according to claim 1, characterized in that the sludge dewatering device (3) comprises a sludge dewatering tank body (301), a sludge water inlet (302) and a sedimentation water outlet (303) are respectively arranged on two sides of the upper end of the sludge dewatering tank body (301), a plurality of flow baffle plates (304) vertical to the bottom of the sludge dewatering tank body (301) are arranged in the sludge dewatering tank body (301), each flow baffle plate (304) is provided with a flow opening (305), the position of the flow opening (305) on the flow baffle plate (304) close to the end part of the sludge water inlet (302) is lower than the position of the flow opening (305) on the other flow baffle plates (304), and the sedimentation water outlet (303) is communicated with a recovery pipeline (18).
5. A biological aerated filter high-suspension wastewater treatment plant according to claim 4, wherein the flow opening (305) of the flow baffle (304) near the end of the sludge inlet (302) is located at the lower middle portion of the flow baffle (304), and the flow openings (305) of the other flow baffles (304) are located at the upper middle portion of the flow baffle (304).
6. A high-suspension wastewater treatment device of a biological aerated filter according to claim 1, wherein the bottom of the biological aerated filter (1) is provided with a sludge scraping device (15) for scraping sludge settled at the bottom of the biological aerated filter (1) to one side of the sludge discharge port (12).
7. The high-suspension wastewater treatment device of the biological aerated filter according to claim 6, wherein the sludge scraping device (15) comprises a sludge scraping plate (1501) which is arranged at the bottom of the filter (1) and vertically contacts with the bottom of the filter (1), two sides of the sludge scraping plate (1501) are respectively and fixedly connected with a moving nut (1502) and a sliding block (1504) which are arranged at the front end and the rear end of the filter (1), a sliding rod (1505) and a transmission lead screw (1503) which are vertical to two sides of the filter (1) are respectively arranged at the front end and the rear end of the filter (1), the moving nut (1502) is in threaded connection with the transmission lead screw (1503), the sliding block (1504) is sleeved on the sliding rod (1505), the sliding block (1504) slides along the sliding rod (1505), a transmission motor (1507) is fixedly arranged at one side of the filter (1), and a transmission shaft of the transmission motor (1507) extends into the filter (1) and is fixedly connected with the transmission lead screw (1503, and drives the transmission screw (1503) to rotate.
8. A highly suspended wastewater treatment plant for biological aerated filter according to claim 7, wherein said scraper (1501) is provided with a plurality of water leakage holes (1506).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922008383.8U CN211170340U (en) | 2019-11-19 | 2019-11-19 | High-suspension wastewater treatment device for biological aerated filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922008383.8U CN211170340U (en) | 2019-11-19 | 2019-11-19 | High-suspension wastewater treatment device for biological aerated filter |
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| Publication Number | Publication Date |
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| CN211170340U true CN211170340U (en) | 2020-08-04 |
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| CN201922008383.8U Expired - Fee Related CN211170340U (en) | 2019-11-19 | 2019-11-19 | High-suspension wastewater treatment device for biological aerated filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114405075A (en) * | 2022-02-15 | 2022-04-29 | 郑州亿众环境科技有限公司 | Inclined tube sedimentation sewage treatment equipment with back flush and travelling type sludge suction |
-
2019
- 2019-11-19 CN CN201922008383.8U patent/CN211170340U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114405075A (en) * | 2022-02-15 | 2022-04-29 | 郑州亿众环境科技有限公司 | Inclined tube sedimentation sewage treatment equipment with back flush and travelling type sludge suction |
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