CN114212878A - Oxidation ditch sewage treatment process and equipment - Google Patents
Oxidation ditch sewage treatment process and equipment Download PDFInfo
- Publication number
- CN114212878A CN114212878A CN202111469527.5A CN202111469527A CN114212878A CN 114212878 A CN114212878 A CN 114212878A CN 202111469527 A CN202111469527 A CN 202111469527A CN 114212878 A CN114212878 A CN 114212878A
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- Prior art keywords
- groove
- rotation axis
- sewage
- guide wall
- block
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1257—Oxidation ditches
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Sewage (AREA)
Abstract
The utility model provides an oxidation ditch sewage treatment device, including main part, butterfly aeration machine and guide wall, the gomphosis of main part middle part is provided with butterfly aeration machine, main part middle part fixedly connected with guide wall, guide wall middle part gomphosis is provided with the rotation axis, guide wall middle part opening is provided with rectangle fluting and connects the rotation axis, rectangle fluting middle part both sides opening is provided with supports the groove, supports the groove middle part gomphosis and is provided with the friction axle, the gomphosis is provided with the circular arc piece around the rotation axis. The rotation axis that crosses the device setting can impact its rotation axis and rotate when rivers turn to and carry out the circulation flow, can throw the collection that the rotation axis removed to the plastics pocket that has and paper garbage impurity in the sewage simultaneously and prescribe a limit to, then will collect the rubbish of prescribing a limit to through the rotation axis of being strikeed the rotation by rivers and carry out certain processing, let it can not float and can't deposit on the surface of water and be difficult to handle.
Description
Technical Field
The invention relates to the technical field of sewage purification treatment processes, in particular to the technical field of an oxidation ditch sewage treatment process and equipment.
Background
The sewage treatment refers to a process of purifying sewage generated in life or industry, wherein the sewage treatment oxidation ditch is used for flowing the sewage into a closed circulating flow ditch, oxidizing sludge, dirt and the like in the sewage through the flow of water flow and aeration treatment and then performing sedimentation treatment.
Disclosure of Invention
Problem (A)
In conclusion, the oxidation ditch sewage treatment process and equipment are provided, and are used for solving the problem that when sludge sewage is treated by the existing oxidation ditch sewage treatment equipment, some garbage floats on the water surface, so that the sludge sewage cannot be precipitated and is difficult to treat when the sludge sewage is precipitated.
(II) technical scheme
The utility model provides an oxidation ditch sewage treatment device, including main part, butterfly aeration machine and guide wall, the gomphosis of main part middle part is provided with butterfly aeration machine, main part middle part fixedly connected with guide wall, guide wall middle part gomphosis is provided with the rotation axis, guide wall middle part opening is provided with rectangle fluting and connects the rotation axis, rectangle fluting middle part both sides opening is provided with supports the groove, supports the groove middle part gomphosis and is provided with the friction axle, the gomphosis is provided with the circular arc piece around the rotation axis.
Furthermore, the guide wall is including the rectangle fluting, the gomphosis groove, support the groove, well cavity, friction axle and clutch blocks, the rectangle fluting is the fluting that the opening set up at the guide wall middle part, the gomphosis groove is both ends cylinder shape recess about the rectangle fluting, support the groove for the recess that a plurality of circular-arc slopes of rectangle fluting left and right sides extend, well cavity is for supporting groove circular-arc fluting surface middle part cylinder shape recess, and well cavity recess side surface is for being linked together the fluting with guide wall cavity inside, the friction axle is the protruding part embedding gomphosis and sets up the round axle at well cavity groove opening part, the clutch blocks is a plurality of triangle-shaped lugs around the friction axle.
Furthermore, the rotating shaft comprises an arc block and an arc groove, the arc block is a triangular square block which is arranged by arc bending and is embedded around the rotating shaft, groove marks which are embedded with threads on the surface of the round shaft at the upper end and the lower end of the friction shaft are arranged at the upper end and the lower end of the surface of the arc block, and the arc groove is an arc groove which is connected with the arc block around the rotating shaft and is embedded with the arc block.
Further, the circular arc piece is including lift axle, limiting block and restricted groove, and the lift axle is the circular axle that circular arc piece connection circular arc groove one end gomphosis set up, and limiting block is lift axle one side fixed surface connection rectangular form lug, and the restricted groove is circular arc piece connection lift axle fluting one side and limiting block gomphosis recess.
Furthermore, the circular arc groove comprises a lifting groove, the lifting groove is formed by connecting the upper end and the lower end of one end of the circular arc block with the lifting shaft thread embedded groove through the circular arc groove, and the top end of the lifting groove is connected with the top end of the lifting shaft through a spring.
(III) advantageous effects
(1) The rotation axis that sets up through the device can impact its rotation axis and rotate when rivers turn to and carry out the circulation flow, can throw the collection that the rotation axis removed to the plastics pocket that has and paper garbage impurity in the sewage simultaneously and prescribe a limit, then will collect the rubbish of prescribing a limit through the rotation axis of being strikeed the rotation by rivers and carry out certain processing, let it can not float and can't deposit on the surface of water and be difficult to handle.
(2) The device still is provided with and supports the groove, can force its circular arc piece by water impact on every side to contract through supporting the groove when the rotation axis is rotatory, let its rotation axis can rotate along the rectangle fluting, the circular arc piece removes the shrink along supporting the groove simultaneously and can drive the friction axle and rotate, the rotation through the friction axle carries out certain friction application of force with the rubbish debris that circular arc piece heavy object surface collection was injectd and pulls, drive it into main part and water conservancy diversion wall inner hollow and collect.
(3) The device still is provided with the lift axle, can drive it through the lift axle in the circular arc piece shrink and go up and down along the lift groove to let the lift axle can carry out the application of force to one end spring, thereby the elasticity through lift axle one end spring resets, lets the circular arc piece can support the groove after removing and reset by oneself.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a side sectional view of the main body of the present invention.
FIG. 3 is a schematic side sectional view of the guide wall of the present invention.
Fig. 4 is an enlarged schematic view of the structure at a in fig. 3 according to the present invention.
Fig. 5 is a schematic view of the overall structure of the arc block of the present invention.
Fig. 6 is an enlarged view of the structure at B in fig. 3 according to the present invention.
In fig. 1 to 6, the corresponding relationship between the part names or lines and the reference numbers is: the butterfly aerator comprises a main body 1, a butterfly aerator 101, a guide wall 102, a rectangular open groove 1021, an embedding groove 1022, a butting groove 1023, a hollow groove 1024, a friction shaft 1025, a friction block 1026, a rotating shaft 2, an arc block 201, a lifting shaft 2011, a limiting block 2012, a limiting groove 2013, an arc groove 202 and a lifting groove 2021.
Detailed Description
Please refer to fig. 1 to 6
The utility model provides an oxidation ditch sewage treatment device, includes main part 1, butterfly aeration machine 101 and guide wall 102, and the gomphosis in 1 middle part of main part is provided with butterfly aeration machine 101, and 1 middle part fixedly connected with guide wall 102 of main part, its characterized in that: the rotation shaft 2 is arranged in the middle of the guide wall 102 in an embedded mode, the rectangular open groove 1021 is arranged at an opening in the middle of the guide wall 102 and connected with the rotation shaft 2, the abutting grooves 1023 are arranged at openings in two sides of the middle of the rectangular open groove 1021, the friction shaft 1025 is arranged in the middle of the abutting grooves 1023 in an embedded mode, and the arc blocks 201 are arranged around the rotation shaft 2 in an embedded mode.
Preferably, the guide wall 102 includes a rectangular slot 1021, an engagement slot 1022, a support slot 1023, a hollow slot 1024, a friction shaft 1025 and a friction block 1026, the rectangular slot 1021 is a slot with an opening arranged in the middle of the guide wall 102, the engagement slot 1022 is cylindrical grooves at the upper and lower ends of the rectangular slot 1021, the support slot 1023 is a plurality of circular arc grooves obliquely extending on the left and right sides of the rectangular slot 1021, the hollow slot 1024 is a cylindrical groove in the middle of the circular arc groove surface of the support slot 1023, one side surface of the groove of the hollow slot 1024 is communicated with the hollow interior of the guide wall 102, the friction shaft 1025 is a circular shaft with a protruding part embedded and engaged in the opening of the groove of the hollow slot 1024, and the friction block 1026 is a plurality of triangular projections around the friction shaft 1025. When the laminating of circular arc piece 201 is supported groove 1023 and is carried out the shrink, the friction axle 1025 that the circular arc piece 201 surface can be engaged and is supported on groove 1023 middle part cavity groove 1024 rotates, the rotation through friction axle 1025 can let the friction piece 1026 around can collect to limit winding rubbish impurity to circular arc piece 201 and scrape, make it rotate through friction axle 1025 and will scrape the rubbish impurity of getting and enter into cavity groove 1024 recess one side and the fluting that main part 1 closed the guide wall 102 cavity department intercommunication, let its rubbish drop.
Preferably, the rotating shaft 2 includes an arc block 201 and an arc groove 202, the arc block 201 is a triangular block with curved arc and fitted around the rotating shaft 2, the upper and lower ends of the surface of the arc block 201 are provided with groove marks screwed with the surface of the round shaft at the upper and lower ends of the friction shaft 1025, and the arc groove 202 is an arc groove around the rotating shaft 2 and engaged with the arc block 201. When water flow flows to the guide wall 102 and turns to the circulation flow, garbage impurities with certain volume and weight in the water flow can swing to the inner wall surface of the main body 1 and the surface of the guide wall 102 due to centrifugal force, then impact on the arc block 201 around the rotating shaft 2 through impact of the water flow, and simultaneously garbage impurities with inner walls in the swinging belt can be impacted on the arc block 201 to perform certain limit collection, then the rotating shaft 2 rotates due to force application of the water flow to impact the arc block 201, the rotating shaft 2 rotates along the rectangular slot 1021, when the rotating shaft 2 rotates to drive the arc block 201 to move to the edge of the rectangular slot 1021, the arc block 201 can abut against the abutting grooves 1023 on two sides of the rectangular slot 1021, and the arc block 201 can abut against the abutting grooves 1023 to contract through arc arrangement of the corresponding grooves 1023 and the arc block 201, so that the arc block 201 around the rotating shaft 2 can abut against the abutting grooves 1023 to contract, the arc block 201 is contracted into the arc groove 202 and is engaged with the arc groove, so that the rotating shaft 2 can smoothly rotate along the rectangular open groove 1021.
Preferably, the arc block 201 includes a lifting shaft 2011, a limiting block 2012 and a limiting groove 2013, the lifting shaft 2011 is a circular shaft which is formed by embedding the arc block 201 in one end of the arc groove 202, the limiting block 2012 is a rectangular projection fixedly connected to the surface of one side of the lifting shaft 2011, and the limiting groove 2013 is a groove which is formed by embedding the arc block 201 in one side of the groove of the lifting shaft 2011 in the limiting block 2012. When circular arc piece 201 contracts into circular arc groove 202, the slope shrink of circular arc piece 201 can let the lift axle 2011 of one end can the gomphosis carry out certain rotation at lift groove 2021 in circular arc groove 202, then because lift axle 2011 and lift groove 2021's screw gomphosis, make lift axle 2011 can go up and down along lift groove 2021 when rotatory, and lift axle 2011 itself is through the gomphosis of injecing groove 2013 on injecing piece 2012 and the circular arc piece 201, make circular arc piece 201 can drive lift axle 2011 and rotate, and lift axle 2011 also can go up and down, the lift through lift axle 2011 comes to compress the one end spring and makes circular arc piece 201 can reset by oneself.
Preferably, the arc groove 202 includes a lifting groove 2021, the lifting groove 2021 is formed by connecting the upper end and the lower end of one end of the arc block 201 with the arc groove 202 and engaging the groove with the lifting shaft 2011 through threads, and the top end of the lifting groove 2021 is connected with the top end of the lifting shaft 2011 through a spring.
An oxidation ditch sewage treatment process comprises the following steps;
in the first step, sewage to be treated is introduced into the main body 1, and then the sewage is caused to flow in a closed circulation along the inside of the main body 1.
And secondly, when the sewage circularly flows along the inside of the main body 1, certain blocking and guiding are carried out on the direction of flowing water through the guide wall 102, so that the water flow can smoothly flow circularly along the main body 1.
In the third step, while the sewage is circulated along the inside of the main body 1, the flow of the sewage is aerated to a certain extent by the rotation of the butterfly aerator 101.
In the second step, when rivers passed through the separation guide of guiding wall 102, rivers can carry out certain turning to with in the sewage on some impurity whipping to rotation axis 2, and rotation axis 2 lets rotation axis 2 rotate because rivers impact on circular arc piece 201, circular arc piece 201 also can carry out certain limited collection to the rubbish debris that impact and come simultaneously, then the rotation through rotation axis 2 will collect the rubbish of injecing on the circular arc piece 201 and drive hollow groove 1024 and drive to remove to main part 1 and the inside cavity department of guiding wall 102 by friction axis 1025 and collect, make some rubbish debris that have in its sewage float to the surface of water carry out certain collection and prescribe a limit, let it can not float and can't deposit on the surface of water and be difficult to handle.
(IV) working principle
The invention provides an oxidation ditch sewage treatment process and equipment, firstly, sewage to be treated flows into a main body 1, then the sewage flows circularly in the main body 1 under the guidance of a guide wall 102, then the sewage is aerated by a butterfly aerator 101, then the sewage is precipitated and treated, when the water flows to the guide wall 102 and turns to the circular flow, garbage impurities with certain volume and weight in the water flow are thrown to the surface of the inner wall of the main body 1 and the surface of the guide wall 102 by the centrifugal force, then the garbage impurities impact on an arc block 201 around a rotating shaft 2 by the impact of the water flow, and simultaneously the garbage impurities with the inner wall of the thrown belt are also impacted on the arc block 201 to perform certain limit collection, then the rotating shaft 2 is also forced to rotate by the water flow impacting the arc block 201, and the rotation of rotation axis 2 is gone on along rectangle fluting 1021, when rotation axis 2 rotatory drive circular arc piece 201 moved to rectangle fluting 1021 edge, circular arc piece 201 can support to in the groove 1023 of supporting of rectangle fluting 1021 both sides, through supporting the circular arc setting that groove 1023 and circular arc piece 201 are unanimous, make circular arc piece 201 around when rotation axis 2 is rotatory can support to support and support groove 1023 to contract, let circular arc piece 201 can contract gomphosis in circular arc groove 202, make its rotation axis 2 can be smooth rotate along rectangle fluting 1021, then when circular arc piece 201 laminating support groove 1023 contracts, circular arc piece 201 surface can engage and support the friction axle 1025 on the groove 1024 in the middle part of groove 1023 and rotate, can let friction piece 1026 around can collect to prescribe a limit winding rubbish impurity to collection to circular arc piece 201 through the rotation of friction axle 1025 and scrape, make it rotate to come into the rubbish impurity of scraping and close the water conservancy diversion wall with main part 1 to the groove 1024 one side through friction axle 1025 that the rubbish impurity of scraping gets into to the hollow groove 1024 102 fluting of cavity department intercommunication, let its rubbish drop, at last when circular arc piece 201 contracts into circular arc groove 202, the slope shrink of circular arc piece 201 can let the lift axle 2011 of one end can the gomphosis carry out certain rotation at lift groove 2021 in circular arc groove 202, then because the screw thread gomphosis of lift axle 2011 and lift groove 2021, can go up and down along lift groove 2021 when making lift axle 2011 rotatory, and lift axle 2011 itself is through the gomphosis of injecing groove 2013 on injecing piece 2012 and the circular arc piece 201, make circular arc piece 201 can drive lift axle 2011 and rotate, and lift axle 2011 also can go up and down, the lift through lift axle 2011 comes to compress the one end spring and makes circular arc piece 201 reset by oneself.
Claims (5)
1. The utility model provides an oxidation ditch sewage treatment device, includes main part (1), butterfly aerator (101) and guide wall (102), main part (1) middle part releasable connection has butterfly aerator (101) and guide wall (102), its characterized in that: the flow guide wall is characterized in that the middle of the flow guide wall (102) is movably connected with a rotating shaft (2) through a rectangular open groove (1021), the periphery of the rotating shaft (2) is movably connected with a circular arc block (201) which is embedded with a butt groove (1023) in the rectangular open groove (1021), and hollow grooves (1024) in two sides of the rectangular open groove (1021) are provided with friction shafts (1025) meshed with the surface of one side of the circular arc block (201).
2. The oxidation ditch sewage treatment device of claim 1, wherein: the flow guide wall (102) comprises a rectangular open groove (1021), an embedding groove (1022), a resisting groove (1023), a hollow groove (1024), a friction shaft (1025) and a friction block (1026), wherein the resisting groove (1023) and the embedding groove (1022) are grooves formed in the rectangular open groove (1021), the friction shaft (1025) is a round shaft embedded in the hollow groove (1024) in the resisting groove (1023), and the friction block (1026) is a convex block around the friction shaft (1025).
3. The oxidation ditch sewage treatment device of claim 1, wherein: the rotating shaft (2) comprises an arc block (201) and an arc groove (202), and the arc groove (202) is a groove connected with the arc block (201) around the rotating shaft (2).
4. The oxidation ditch sewage treatment device of claim 1, wherein: the arc block (201) comprises a lifting shaft (2011), a limiting block (2012) and a limiting groove (2013), and the limiting groove (2013) is a groove which is formed in the arc block (201) and is embedded with a protruding block of the limiting block (2012) on one side of the lifting shaft (2011).
5. The oxidation ditch sewage treatment device of claim 1, wherein: the arc groove (202) comprises a lifting groove (2021), and the lifting groove (2021) is a groove in the arc groove (202);
an oxidation ditch sewage treatment process comprises the following steps;
firstly, sewage to be treated flows into a main body (1), and then the sewage flows in a closed circulation mode along the interior of the main body (1);
secondly, when sewage circularly flows along the inside of the main body (1), certain blocking and guiding are carried out on the flowing water direction through the guide wall (102) of the sewage, so that the water flow can smoothly and circularly flow along the main body (1);
in the third step, when the sewage circularly flows along the inside of the main body (1), the rotation of the butterfly aerator (101) is used for carrying out certain aeration treatment on the sewage flow;
in the second step, when rivers passed through the separation guide of guiding wall (102), rivers can carry out certain turning to with in the sewage on some impurity whipping rotation axis (2), and rotation axis (2) let rotation axis (2) rotate on circular arc piece (201) because rivers impact, circular arc piece (201) also can carry out certain limited collection to the rubbish debris that the impact was come simultaneously, then the rotation through rotation axis (2) will collect on circular arc piece (201) rubbish of injecing and drive to hollow groove (1024) and drive to remove main part (1) and guiding wall (102) inside cavity department by friction shaft (1025) and collect, make some rubbish debris that can float to the surface of water in its sewage carry out certain collection and inject, let it can not float and can't deposit on the surface of water and be difficult to handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111469527.5A CN114212878A (en) | 2021-12-04 | 2021-12-04 | Oxidation ditch sewage treatment process and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111469527.5A CN114212878A (en) | 2021-12-04 | 2021-12-04 | Oxidation ditch sewage treatment process and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114212878A true CN114212878A (en) | 2022-03-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111469527.5A Pending CN114212878A (en) | 2021-12-04 | 2021-12-04 | Oxidation ditch sewage treatment process and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114212878A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1148673A (en) * | 1979-08-01 | 1983-06-21 | Paul M. Thayer | Ring channel aeration apparatus and method |
| CN2605252Y (en) * | 2002-12-13 | 2004-03-03 | 聂原 | Efficient dephosphorizing-denitrificating improved oxydation channel |
| CN201056512Y (en) * | 2007-05-29 | 2008-05-07 | 山东大学 | Film component integrated oxidation ditch |
| CN202988836U (en) * | 2013-01-07 | 2013-06-12 | 成都首创环境工程有限公司 | Combined Orbal oxidation ditch system |
| CN206417877U (en) * | 2016-12-23 | 2017-08-18 | 内蒙古金河环保科技股份有限公司 | A kind of pretreatment unit of high-concentration hardly-degradable organic wastewater containing ammonia |
| CN108516615A (en) * | 2018-04-19 | 2018-09-11 | 安徽建筑大学 | A kind of oxidation ditch using pump-type impeller surface aerating machine |
| CN109987699A (en) * | 2019-04-25 | 2019-07-09 | 于萍 | A method of strengthening air lift pulling flow type oxidation ditch effect with suspending carrier |
| CN110130290A (en) * | 2019-05-23 | 2019-08-16 | 张玉杰 | A kind of marine float refuse collector |
| CN113620416A (en) * | 2021-07-15 | 2021-11-09 | 储晨晨 | Sewage treatment reactor |
| CN113684805A (en) * | 2021-08-26 | 2021-11-23 | 安徽机电职业技术学院 | Marine garbage cleaner and cleaning method thereof |
-
2021
- 2021-12-04 CN CN202111469527.5A patent/CN114212878A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1148673A (en) * | 1979-08-01 | 1983-06-21 | Paul M. Thayer | Ring channel aeration apparatus and method |
| CN2605252Y (en) * | 2002-12-13 | 2004-03-03 | 聂原 | Efficient dephosphorizing-denitrificating improved oxydation channel |
| CN201056512Y (en) * | 2007-05-29 | 2008-05-07 | 山东大学 | Film component integrated oxidation ditch |
| CN202988836U (en) * | 2013-01-07 | 2013-06-12 | 成都首创环境工程有限公司 | Combined Orbal oxidation ditch system |
| CN206417877U (en) * | 2016-12-23 | 2017-08-18 | 内蒙古金河环保科技股份有限公司 | A kind of pretreatment unit of high-concentration hardly-degradable organic wastewater containing ammonia |
| CN108516615A (en) * | 2018-04-19 | 2018-09-11 | 安徽建筑大学 | A kind of oxidation ditch using pump-type impeller surface aerating machine |
| CN109987699A (en) * | 2019-04-25 | 2019-07-09 | 于萍 | A method of strengthening air lift pulling flow type oxidation ditch effect with suspending carrier |
| CN110130290A (en) * | 2019-05-23 | 2019-08-16 | 张玉杰 | A kind of marine float refuse collector |
| CN113620416A (en) * | 2021-07-15 | 2021-11-09 | 储晨晨 | Sewage treatment reactor |
| CN113684805A (en) * | 2021-08-26 | 2021-11-23 | 安徽机电职业技术学院 | Marine garbage cleaner and cleaning method thereof |
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