CN111013205A - Waste water sedimentation equipment for preliminary treatment of waste water - Google Patents
Waste water sedimentation equipment for preliminary treatment of waste water Download PDFInfo
- Publication number
- CN111013205A CN111013205A CN202010080910.0A CN202010080910A CN111013205A CN 111013205 A CN111013205 A CN 111013205A CN 202010080910 A CN202010080910 A CN 202010080910A CN 111013205 A CN111013205 A CN 111013205A
- Authority
- CN
- China
- Prior art keywords
- cavity
- chamber
- sedimentation
- filter screen
- wall
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0006—Settling tanks provided with means for cleaning and maintenance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
- B01D21/2472—Means for fluidising the sediments, e.g. by jets or mechanical agitators
Abstract
The invention discloses a wastewater sedimentation device for primary treatment of wastewater, which comprises a treatment tank, a sedimentation cavity with an upward opening is arranged in the treatment box, a power cavity communicated with the sedimentation cavity is arranged in the inner wall of the sedimentation cavity, a sliding piston capable of sliding left and right is arranged in the power cavity, a connecting rod is fixedly arranged on the end surface of one side of the sliding piston, which is close to the sedimentation cavity, the invention combines a sedimentation method and a filtration method, the bottom of the sedimentation tank adopts the filter screen, when the impurities in the waste water are fully precipitated, the invention can deform the filter screen into a funnel shape, so that the impurities are gathered at the middle position of the filter screen, the waste water is discharged through the periphery of the filter screen, in addition, the invention can automatically remove impurities, thereby avoiding the problems that the filter screen occupies too large space and the impurities are too dispersed and are not easy to remove.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a wastewater precipitation device for performing primary treatment on wastewater.
Background
In modern industry, the inevitable generation of waste water is one of the most main water pollution sources, for most waste waters, the treatment thereof can be generalized to a three-stage treatment, in a first stage of pretreatment, mainly removes larger particles in the wastewater, the common treatment methods are a precipitation method and a filtration method, but when the precipitated wastewater is treated in the next step, impurities at the bottom of the tank are easy to stir in the transfer process of the wastewater, so that the prior precipitation treatment effect is greatly reduced, the filtering method is to select a gauze with proper mesh number to filter the wastewater according to the particle diameter of particles in the wastewater, the particles easily block the gauze, in order to ensure the flow and reduce the influence of blockage on the flow speed, the area of the filter screen is often made to be large, which not only occupies space, and the filtered impurities are dispersed and not easy to clean, so the invention is provided for solving the problems.
Disclosure of Invention
The present invention provides a wastewater precipitation apparatus for the preliminary treatment of wastewater, which overcomes the above-mentioned problems.
The invention is realized by the following technical scheme.
A waste water sedimentation device for primarily treating waste water comprises a treatment box, wherein an upward opening sedimentation chamber is arranged in the treatment box, a power chamber communicated with the sedimentation chamber is arranged in the inner wall of the sedimentation chamber, a sliding piston capable of sliding left and right is arranged in the power chamber, the sliding piston is close to a side end face of the sedimentation chamber and is fixedly provided with a connecting rod, a filter screen is arranged in the sedimentation chamber, four corners of the filter screen are fixedly connected with the connecting rod, an intermediate chamber which is positioned at the lower side of the sedimentation chamber and is communicated with the sedimentation chamber is arranged in the treatment box, a drain pipe is fixedly arranged on the bottom wall of the intermediate chamber, a fixed box is fixedly arranged on the rear wall of the intermediate chamber, an upward opening movement chamber is arranged in the fixed box, a connecting pipe capable of sliding up and down is arranged in the movement chamber, the upper side of the connecting pipe is fixedly connected with the filter screen, and an, the collecting cavity is internally provided with a valve mechanism for closing the collecting cavity, the rear wall of the moving cavity is internally provided with a communicating cavity with a backward opening, waste water is fully precipitated in the precipitating cavity, the connecting pipe descends, the sliding piston is close to the precipitating cavity in the direction, so that the filter screen becomes funnel-shaped, impurities can be gathered on the upper side of the connecting pipe, after the waste water is completely discharged, the valve mechanism is opened to enable the impurities to enter the moving cavity, the front side of the moving cavity is provided with a pushing mechanism, the pushing mechanism is used for enabling the impurities in the moving cavity to pass through the communicating cavity to be pushed out, the rear side of the processing box is provided with a drain pipe communicated with the communicating cavity, the inner wall of the precipitating cavity is internally provided with a washing mechanism, and the washing mechanism can wash the filter screen.
Furthermore, a mounting groove is formed in the inner wall of the movement cavity, a first electric guide rail is fixedly arranged in the mounting groove, and a sliding block of the first electric guide rail is fixedly connected with the connecting pipe.
Further, the valve mechanism comprises a containing cavity arranged in the inner wall of the collecting cavity, a second electric guide rail is arranged in the containing cavity, and a valve plate is installed on the front side of the second electric guide rail and used for sealing the collecting cavity.
Furthermore, a drainage groove for auxiliary drainage is arranged in the inner wall of the middle cavity.
Furthermore, a cylinder is arranged in the power cavity, and the sliding piston is fixedly connected with a piston rod of the cylinder.
Further, wash the mechanism including set up in the installation cavity in the precipitation intracavity wall, the fixed electronic slide rail that is equipped with of installation cavity roof, the install bin is installed to electronic slide rail downside, be equipped with downwardly opening's adjustment chamber in the install bin, the fixed adjustment motor that is equipped with of adjustment cavity roof, the fixed nozzle that is equipped with on the rotation axis of adjustment motor.
Furthermore, the pushing mechanism comprises an accommodating box fixedly arranged on the front end face of the fixed box, a hydraulic cavity communicated with the movement cavity is arranged in the accommodating box, a hydraulic cylinder is fixedly arranged on the front wall of the hydraulic cavity, and a pushing plate is fixedly arranged at the rear end of a hydraulic rod on the rear side of the hydraulic cylinder.
Further, the fixed stopper that is located of motion intracavity wall the intercommunication chamber upside, impurity are difficult to gather when collecting in the chamber, make connecting pipe express delivery circulation up-and-down motion, during the decline the connecting pipe with the stopper collision produces the vibration, makes impurity gather collect in the chamber.
The invention has the beneficial effects that: the invention combines the precipitation method and the filtration method, the bottom of the sedimentation tank adopts the filter screen, when the impurities in the wastewater are fully precipitated, the filter screen can be deformed into a funnel shape, the impurities are gathered at the middle position of the filter screen, the wastewater is discharged through the periphery of the filter screen, in addition, the impurities can be automatically removed, and the problems that the filter screen occupies too large space and the impurities are too dispersed and are not easy to remove are avoided.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure at A-A in FIG. 1;
FIG. 3 is a schematic view of the structure at B-B in FIG. 1;
FIG. 4 is a schematic cross-sectional view of the containment tank of FIG. 3;
fig. 5 is a schematic view of the structure at C in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
With reference to the accompanying drawings 1-5, the waste water sedimentation device for primary treatment of waste water mainly comprises a treatment box 10, wherein an upward opening sedimentation chamber 11 is arranged in the treatment box 10, a power chamber 32 communicated with the sedimentation chamber 11 is arranged in the inner wall of the sedimentation chamber 11, a sliding piston 31 capable of sliding left and right is arranged in the power chamber 32, the sliding piston 31 is close to one side end face of the sedimentation chamber 11 and is fixedly provided with a connecting rod 30, a filter screen 18 is arranged in the sedimentation chamber 11, four corners of the filter screen 18 are fixedly connected with the connecting rod 30, an intermediate chamber 28 which is positioned at the lower side of the sedimentation chamber 11 and is communicated with the sedimentation chamber 11 is arranged in the treatment box 10, a drain pipe 26 is fixedly arranged on the bottom wall of the intermediate chamber 28, a fixed box 24 is fixedly arranged on the rear wall of the intermediate chamber 28, and an upward opening movement chamber 22 is arranged in the fixed box 24, the movable sewage treatment device is characterized in that a connecting pipe 17 capable of sliding up and down is arranged in the movable cavity 22, the upper side of the connecting pipe 17 is fixedly connected with the filter screen 18, a collecting cavity 16 with an upward opening is arranged in the connecting pipe 17, a valve mechanism 62 for sealing the collecting cavity 16 is arranged in the collecting cavity 16, a communicating cavity 25 with a backward opening is arranged in the rear wall of the movable cavity 22, after waste water is fully precipitated in the precipitation cavity 11, the connecting pipe 17 descends, the sliding piston 31 approaches to the direction of the precipitation cavity 11, so that the filter screen 18 becomes funnel-shaped, impurities can be gathered on the upper side of the connecting pipe 17, after the waste water is completely discharged, the valve mechanism 62 is opened, so that the impurities enter the movable cavity 22, a pushing mechanism 61 is arranged on the front side of the movable cavity 22, the pushing mechanism 61 is used for pushing out the impurities in the movable cavity 22 through the communicating cavity 25, a sewage discharge pipe 34 communicated with the communicating cavity 25 is arranged on the rear, a washing mechanism 60 is arranged in the inner wall of the sedimentation chamber 11, and the washing mechanism 60 can wash the filter screen 18.
Advantageously, a mounting groove 19 is formed in the inner wall of the movement cavity 22, a first motor-driven rail 23 is fixedly arranged in the mounting groove 19, and the sliding block 20 of the first motor-driven rail 23 is fixedly connected with the connecting pipe 17.
Advantageously, the valve mechanism 62 comprises a housing chamber 21 disposed in the inner wall of the collection chamber 16, the housing chamber 21 is provided with a second electric rail 14, a valve plate 15 is mounted on the front side of the second electric rail 14, and the valve plate 15 is used for closing the collection chamber 16.
Advantageously, a drainage channel 29 for auxiliary drainage is provided in the inner wall of said intermediate chamber 28.
Advantageously, a cylinder 33 is arranged in the power chamber 32, and the sliding piston 31 is fixedly connected with a piston rod of the cylinder 33.
Advantageously, the flushing mechanism 60 comprises a mounting cavity 12 arranged in the inner wall of the settling chamber 11, a top wall of the mounting cavity 12 is fixedly provided with a motor-driven slide rail 40, a mounting box 13 is mounted on the lower side of the motor-driven slide rail 40, a downward-opening adjusting cavity 41 is arranged in the mounting box 13, a top wall of the adjusting cavity 41 is fixedly provided with an adjusting motor 39, and a rotating shaft 43 of the adjusting motor 39 is fixedly provided with a nozzle 42.
Advantageously, the pushing mechanism 61 comprises a containing box 35 fixedly arranged on the front end face of the fixed box 24, a hydraulic chamber 37 communicated with the moving chamber 22 is arranged in the containing box 35, a hydraulic cylinder 36 is fixedly arranged on the front wall of the hydraulic chamber 37, and a pushing plate 38 is fixedly arranged on the rear end of a hydraulic rod on the rear side of the hydraulic cylinder 36.
Advantageously, a limit block 27 located on the upper side of the communication cavity 25 is fixedly arranged on the inner wall of the movement cavity 22, when impurities are difficult to gather in the collection cavity 16, the connection pipe 17 is enabled to move up and down in a circulating mode, and when the connection pipe 17 is descended, the connection pipe 17 collides with the limit block 27 to generate vibration, so that the impurities are gathered in the collection cavity 16.
The working steps are as follows: adding wastewater into the precipitation cavity 11, precipitating the wastewater in the precipitation cavity 11, allowing a part of the wastewater to enter the intermediate cavity 28 through the filter screen 18 and to be discharged through the drain pipe 26, and gradually blocking holes in the filter screen 18 by impurities in the wastewater precipitation process;
after the wastewater is completely precipitated, the cylinder 33 and the first electric guide rail 23 are started, so that the sliding piston 31 drives the connecting rod 30 to move towards the precipitation cavity 11, the connecting pipe 17 descends, so that the filter screen 18 is funnel-shaped, impurities on the filter screen 18 will collect in the collection chamber 16, the waste water is discharged at the side of the filter screen 18 through the drainage channel 29 into the intermediate chamber 28, after the wastewater in the sedimentation chamber 11 is fully discharged, the first electric guide rail 23 is started to enable the connecting pipe 17 to circularly move up and down, the connecting pipe 17 collides with the limiting block 27 to generate vibration when descending, so that impurities are gathered in the collection chamber 16, after the impurities are gathered and aggregated, the second electric guide rail 14 is started, the valve plate 15 is accommodated in the accommodating cavity 21, the collection cavity 16 is opened, impurities enter the movement cavity 22, the hydraulic cylinder 36 is started to enable the pushing plate 38 to move backwards to enter the communication cavity 25 to push out the impurities, and the impurities are discharged through the sewage discharge pipe 34;
when the impurities on the filter screen 18 are difficult to fall off, the electric slide rail 40 is started to enable the installation box 13 to move into the precipitation cavity 11, the nozzle 42 is opened to spray water onto the filter screen 18 to remove the impurities, and the adjusting motor 39 starts the adjustable nozzle 42 to spray water and remove wind direction.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a waste water precipitation equipment of preliminary treatment is carried out waste water, includes and handles the case, be equipped with the precipitation chamber of upwards opening in the case of handling, its characterized in that: a power cavity communicated with the sedimentation cavity is arranged in the inner wall of the sedimentation cavity, a sliding piston capable of sliding left and right is arranged in the power cavity, a connecting rod is fixedly arranged on the end surface of one side of the sliding piston close to the sedimentation cavity, a filter screen is arranged in the sedimentation cavity, four corners of the filter screen are fixedly connected with the connecting rod, a middle cavity which is positioned at the lower side of the sedimentation cavity and is communicated with the sedimentation cavity is arranged in the treatment box, a drain pipe is fixedly arranged on the bottom wall of the middle cavity, a fixed box is fixedly arranged on the rear wall of the middle cavity, an upward opening motion cavity is arranged in the fixed box, a connecting pipe capable of sliding up and down is arranged in the motion cavity, the upper side of the connecting pipe is fixedly connected with the filter screen, an upward opening collection cavity is arranged in the connecting pipe, a valve mechanism for sealing the collection cavity is arranged in the collection cavity, and a backward opening, waste water is in after fully deposiing in the sedimentation chamber, the connecting pipe descends, sliding piston to the sedimentation chamber direction is close to, makes the filter screen becomes to leak hopper-shaped, and impurity can gather the connecting pipe upside, treat waste water exhaust back, valve mechanism opens, makes impurity get into in the motion chamber, motion chamber front side is equipped with pushing mechanism, pushing mechanism be used for with impurity in the motion chamber passes through the intercommunication chamber is released, handle the case rear side be equipped with the blow off pipe of intercommunication chamber intercommunication, be equipped with in the sedimentation intracavity wall and wash the mechanism, it can be right to wash the mechanism the filter screen washes.
2. A wastewater treatment plant for the preliminary treatment of wastewater according to claim 1, characterized in that: the motion cavity is characterized in that a mounting groove is formed in the inner wall of the motion cavity, a first electric guide rail is fixedly arranged in the mounting groove, and a sliding block of the first electric guide rail is fixedly connected with the connecting pipe.
3. A wastewater treatment plant for the preliminary treatment of wastewater according to claim 1, characterized in that: the valve mechanism comprises a containing cavity arranged in the inner wall of the collecting cavity, a second electric guide rail is arranged in the containing cavity, and a valve plate is installed on the front side of the second electric guide rail and used for sealing the collecting cavity.
4. A wastewater treatment plant for the preliminary treatment of wastewater according to claim 1, characterized in that: and a drainage groove for auxiliary drainage is arranged in the inner wall of the middle cavity.
5. A wastewater treatment plant for the preliminary treatment of wastewater according to claim 1, characterized in that: and a cylinder is arranged in the power cavity, and the sliding piston is fixedly connected with a piston rod of the cylinder.
6. A wastewater treatment plant for the preliminary treatment of wastewater according to claim 1, characterized in that: the washing mechanism is including setting up in the installation cavity in the precipitation intracavity wall, the installation cavity roof is fixed to be equipped with electronic slide rail, the install bin is installed to electronic slide rail downside, be equipped with downwardly opening's adjustment chamber in the install bin, the fixed adjustment motor that is equipped with of adjustment cavity roof, the fixed nozzle that is equipped with on the rotation axis of adjustment motor.
7. A wastewater treatment plant for the preliminary treatment of wastewater according to claim 1, characterized in that: the pushing mechanism comprises a containing box fixedly arranged on the front end face of the fixed box, a hydraulic cavity communicated with the movement cavity is arranged in the containing box, a hydraulic cylinder is fixedly arranged on the front wall of the hydraulic cavity, and a pushing plate is fixedly arranged at the rear end of a hydraulic rod on the rear side of the hydraulic cylinder.
8. A wastewater treatment plant for the preliminary treatment of wastewater according to claim 1, characterized in that: the motion intracavity wall is fixed to be equipped with and is located the stopper of intercommunication chamber upside, impurity is difficult to gather when collecting in the chamber, make connecting pipe express delivery circulation up-and-down motion, during the decline the connecting pipe with the stopper collision produces the vibration, makes impurity gather collect in the chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010080910.0A CN111013205A (en) | 2020-02-05 | 2020-02-05 | Waste water sedimentation equipment for preliminary treatment of waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010080910.0A CN111013205A (en) | 2020-02-05 | 2020-02-05 | Waste water sedimentation equipment for preliminary treatment of waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111013205A true CN111013205A (en) | 2020-04-17 |
Family
ID=70203366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010080910.0A Withdrawn CN111013205A (en) | 2020-02-05 | 2020-02-05 | Waste water sedimentation equipment for preliminary treatment of waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111013205A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481975A (en) * | 2020-05-12 | 2020-08-04 | 金华宣亚环保技术有限公司 | Device capable of dredging sewage filter screen |
| CN112870843A (en) * | 2021-01-28 | 2021-06-01 | 长烁环保能源科技(湖北)有限公司 | Sewage resource energy treatment equipment |
| CN114100211A (en) * | 2021-12-08 | 2022-03-01 | 无锡星亿智能环保装备股份有限公司 | Multi-stage treatment mechanism for chromium-containing electroplating wastewater |
| CN115140789A (en) * | 2022-08-31 | 2022-10-04 | 浙江蓝景科技有限公司杭州分公司 | Pretreatment device is stored to ocean cloud storehouse boats and ships pollutant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE444513B (en) * | 1977-09-22 | 1986-04-21 | Davy Loewy Ltd | SET DRAINAGE METAL POWDER AND SEDIMENTATION TANK |
| WO2012161478A2 (en) * | 2011-05-20 | 2012-11-29 | Kim Chang Gil | Apparatus for early rainwater purification |
| KR20140100449A (en) * | 2014-02-25 | 2014-08-14 | 서울과학기술대학교 산학협력단 | facility decreasing non-point source pollution for Railway Facilities |
| CN203989981U (en) * | 2014-07-02 | 2014-12-10 | 河南新大新材料股份有限公司 | Industrial Wastewater Treatment desludging device |
| CN209020054U (en) * | 2018-09-04 | 2019-06-25 | 山东伊亲水处理设备有限公司 | A kind of household sewage recycling and processing device |
| WO2019195997A1 (en) * | 2018-04-10 | 2019-10-17 | 龚金凤 | Printing and dyeing wastewater pre-treatment apparatus |
| CN209790987U (en) * | 2018-12-20 | 2019-12-17 | 北京汉能光伏投资有限公司 | Residual liquid recovery device |
| CN110577341A (en) * | 2019-11-04 | 2019-12-17 | 新昌德劳污水处理有限公司 | Rural plant effluent treatment plant |
| CN110607829A (en) * | 2019-09-28 | 2019-12-24 | 天台云层自动化科技有限公司 | Set up in preventing blockking up outlet on urban road surface |
-
2020
- 2020-02-05 CN CN202010080910.0A patent/CN111013205A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE444513B (en) * | 1977-09-22 | 1986-04-21 | Davy Loewy Ltd | SET DRAINAGE METAL POWDER AND SEDIMENTATION TANK |
| WO2012161478A2 (en) * | 2011-05-20 | 2012-11-29 | Kim Chang Gil | Apparatus for early rainwater purification |
| KR20140100449A (en) * | 2014-02-25 | 2014-08-14 | 서울과학기술대학교 산학협력단 | facility decreasing non-point source pollution for Railway Facilities |
| CN203989981U (en) * | 2014-07-02 | 2014-12-10 | 河南新大新材料股份有限公司 | Industrial Wastewater Treatment desludging device |
| WO2019195997A1 (en) * | 2018-04-10 | 2019-10-17 | 龚金凤 | Printing and dyeing wastewater pre-treatment apparatus |
| CN209020054U (en) * | 2018-09-04 | 2019-06-25 | 山东伊亲水处理设备有限公司 | A kind of household sewage recycling and processing device |
| CN209790987U (en) * | 2018-12-20 | 2019-12-17 | 北京汉能光伏投资有限公司 | Residual liquid recovery device |
| CN110607829A (en) * | 2019-09-28 | 2019-12-24 | 天台云层自动化科技有限公司 | Set up in preventing blockking up outlet on urban road surface |
| CN110577341A (en) * | 2019-11-04 | 2019-12-17 | 新昌德劳污水处理有限公司 | Rural plant effluent treatment plant |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481975A (en) * | 2020-05-12 | 2020-08-04 | 金华宣亚环保技术有限公司 | Device capable of dredging sewage filter screen |
| CN112870843A (en) * | 2021-01-28 | 2021-06-01 | 长烁环保能源科技(湖北)有限公司 | Sewage resource energy treatment equipment |
| CN114100211A (en) * | 2021-12-08 | 2022-03-01 | 无锡星亿智能环保装备股份有限公司 | Multi-stage treatment mechanism for chromium-containing electroplating wastewater |
| CN115140789A (en) * | 2022-08-31 | 2022-10-04 | 浙江蓝景科技有限公司杭州分公司 | Pretreatment device is stored to ocean cloud storehouse boats and ships pollutant |
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Application publication date: 20200417 |
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