CN214060125U - Micro-nano air-flotation rotary drum micro-filtration type algae-water separation system - Google Patents
Micro-nano air-flotation rotary drum micro-filtration type algae-water separation system Download PDFInfo
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- CN214060125U CN214060125U CN202023213710.2U CN202023213710U CN214060125U CN 214060125 U CN214060125 U CN 214060125U CN 202023213710 U CN202023213710 U CN 202023213710U CN 214060125 U CN214060125 U CN 214060125U
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Abstract
The utility model provides a micro-nano air-flotation rotary drum micro-filtration algae-water separation system, including the open-topped separation box body and the separator, the separator includes air-flotation mechanism, algae-water separation mechanism and the guide baffle plate that separates the box body interior into left air-flotation chamber and right separation chamber between the two, the air-flotation mechanism includes separation water inlet, micro-nano bubble generator and micro-nano bubble releaser; the algae-laden water separation mechanism comprises a rotary drum type microfiltration component, an algae separation outlet, an algae scraping component, a pull type filter screen and a separation water outlet; the algae-laden water mixture to be separated enters the left air flotation cavity from the separation water inlet, is guided by the guide partition plate to enter the right separation cavity under the action of rising buoyancy of the micro-nano bubbles released by the micro-nano bubble generator and then flows to the drum type micro-filtration component, is filtered by the rotation of the drum type micro-filtration component to separate algae and water, and is discharged out of the separation box body through the algae scraping component and the separation water outlet. The system has low energy consumption, no chemical pollution, no damage to algae structure, easy separation of algae and water and high separation efficiency.
Description
Technical Field
The utility model belongs to algae-laden water separation field, concretely relates to micro-nano air supporting rotary drum micro-filtration formula algae-laden water separation system.
Background
In the prior art, chemical agent assisted collection and physical collection methods are commonly adopted for collecting algae
Chemical agent auxiliary collection methods, including chemical agent auxiliary air flotation collection method, flocculation method etc. need to add chemical agent, though be favorable to separating the alga, nevertheless retrieve the alga and need remove the remaining chemical agent in the alga and increase recovery cost and still bring secondary pollution easily, and chemical agent auxiliary air flotation collection method still has following problem moreover: the used gas dissolving water is formed by compressed air and return water in a gas dissolving tank, an air compressor is required to compress the air, the energy consumption is high, and once the return water contains impurities, a releaser is easy to block, the gas dissolving water cannot be formed, so that the equipment cannot normally run; the diameter of the gas-dissolving water micro-bubble is larger, so that the dosage needs to be increased, and the cost is increased; when the air compressor runs, the noise of the machine is high.
Physical collection methods include filtration, natural sedimentation, centrifugation, and traditional screen filtration. The filtration method for separating algae usually needs to add a filter aid to prevent algae cells from prematurely penetrating through a filter column, and the filter aid can damage the algae structure and is not beneficial to algae recovery. The natural sedimentation method has the lowest operation cost, but the sedimentation efficiency is only 50-80%, and the sedimentation time is longer; the centrifugal method has the characteristics of short separation time, high sedimentation efficiency, complete collected algae cells and the like; but the energy consumption is higher, and the device belongs to a sequencing batch reactor, and is more suitable for harvesting and separating functional algae; the single screen type filtering intercepts algae through the screen, and liquid flows out through the meshes to realize the separation of the algae and the liquid, but part of the algae can be attached to the screen and is not easy to clean, so that the single screen type filtering has certain limitation.
In conclusion, an algae-laden water separation device which has low energy consumption, no chemical pollution, no damage to algae structure, easy algae-laden water separation and high separation efficiency is in urgent need of development.
SUMMERY OF THE UTILITY MODEL
In view of the above disadvantages of the prior art, the present invention provides a micro-nano air flotation drum micro-filtration algae-water separation system, which has the characteristics of low energy consumption, no chemical pollution, no damage to algae structure, easy separation of algae-water and high precipitation efficiency;
an object of the utility model is to provide a micro-nano air supporting rotary drum micro-filtration formula algae water separation system reaches the purpose of acquireing high dehydration rate algae sediment.
In order to achieve the above and other related objects, the present invention provides a micro-nano air-flotation rotary drum micro-filtration algae-water separation system, which comprises a separation box for holding an algae-water mixture to be separated and a separation device arranged inside the separation box for separating solid from liquid of the algae-water mixture, wherein the top of the separation box is open, the separation device comprises an air-flotation mechanism, an algae-water separation mechanism and a flow guide partition plate arranged between the air-flotation mechanism and the separation box for partitioning the inner part of the separation box into a left air-flotation cavity and a right separation cavity, wherein the air-flotation mechanism comprises a separation water inlet arranged on the side wall of the left air-flotation cavity, a micro-nano bubble generator arranged outside the separation box and a micro-nano bubble releaser connected with the micro-nano bubble generator through a pipeline and arranged in the left air-flotation cavity below the separation water inlet; the algae-laden water separation mechanism comprises a rotary drum type microfiltration component fixedly suspended at the upper part of the right separation cavity and parallel to the diversion partition plate, a separation algae outlet arranged at the top of the side wall of the right separation cavity parallel to the rotary drum type microfiltration component, an algae scraping component arranged at the algae outlet, a pull type filter screen arranged below the rotary drum type microfiltration component and parallel to but not in contact with the bottom of the right separation cavity, and a separation water outlet arranged on the side wall of the right separation cavity below the pull type filter screen, wherein the rotary drum type microfiltration component is close to but not against the algae scraping component on the upper edge of the diversion partition plate; the algae-water mixture to be separated enters the left air flotation cavity from the separation water inlet, under the action of rising buoyancy of the micro-nano bubbles generated by the micro-nano bubble generator and released by the micro-nano bubble releaser and the flow guide of the flow guide partition plate, the micro-nano bubbles enter the right separation cavity and flow onto the drum type microfiltration component, the algae and water are separated under the rotation and filtration of the drum type microfiltration component, the algae are scraped by the algae scraping component and slide out of the separation box, and the water is discharged out of the separation box through the separation water outlet.
Preferably, the drum type microfiltration component comprises a drum inner support frame, a drum filter screen wrapped outside the drum inner support frame, a rotating shaft driving the drum inner support frame to rotate and a motor driving the rotating shaft to rotate, and the rotating shaft is arranged on two opposite side walls of the separation box body and is parallel to the diversion partition plate; the aperture of the drum filter screen is 100-1250 meshes.
Preferably, the micro-nano bubble releaser is connected with the micro-nano bubble generator through a hose.
Preferably, the height of the flow guide partition plate is lower than that of the side wall of the separation box body.
Preferably, the height of the upper edge of the diversion baffle plate is lower than the height of the axis of the rotating shaft, and the height difference is not greater than the inner diameter of the drum filter screen; the horizontal distance from the upper edge of the diversion baffle plate to the left side of the rotary drum filter screen is larger than zero and smaller than 5 cm.
Preferably, the pull-out filter screen is taken out or inserted through a pull-out opening provided in a side wall of the right separation chamber.
Preferably, the algae scraping component comprises a scraping plate which is arranged at the algae separation outlet and is opposite to the rotation direction of the drum filter screen, and a guide inclined plate which is connected with the tail end of the scraping plate and extends towards the inclined right lower part; the upper edge line of the scraper is parallel to the axis of the rotating shaft, the height of the upper edge line of the scraper is lower than the height of the axis of the rotating shaft, and the height difference is not more than the inner diameter of the drum filter screen; the length of the upper edge line of the scraper is not more than the length of the drum filter screen; the horizontal distance from the upper edge line of the scraper to the right side of the drum filter screen is more than zero and less than 5 cm; the drum strainer rotates clockwise.
Preferably, the front side and the rear side of the scraping plate and the guide inclined plate are respectively provided with a baffle.
Preferably, the included angle between the scraper and the horizontal plane is 45-90 degrees; the included angle between the inclined guide plate and the horizontal plane is 45-90 degrees.
Preferably, the separation system further comprises a screw extrusion dehydrator, which comprises a machine body, and an algae inlet, a water outlet and an algae outlet of the screw extrusion dehydrator, which are arranged on the machine body; the algae inlet of the screw extrusion dehydrator is connected with the tail end of the guide inclined plate, the water outlet of the screw extrusion dehydrator is communicated with the separation water outlet through a pipeline, and the algae outlet of the screw extrusion dehydrator is connected with the algae collecting box.
The micro-nano air-flotation rotary drum micro-filtration algae-water separation system provided by the scheme has the following beneficial effects:
1) the micro-nano air flotation rotary drum micro-filtration algae-water separation system has low energy consumption, no chemical pollution, no damage to algae structure, easy separation of algae and high precipitation efficiency;
2) the micro-nano bubbles adopted by the micro-nano air-flotation rotary drum micro-filtration algae-water separation system have the characteristics of small bubble size, large specific surface area, high adsorption efficiency, slow ascending speed in water and the like, so that the algae removal rate is higher, the separation and enrichment speed is much faster than precipitation or coprecipitation separation, the enrichment times are large, and the separation efficiency is high;
3) the micro-nano bubble air-flotation process adopted by the micro-nano air-flotation rotary drum micro-filtration algae-water separation system can improve the pretreatment speed, has the advantages of high separation efficiency, low operating cost, short separation time and the like, can effectively remove organic pollutants and suspended matters, and realizes the separation of algae and water to achieve the purification of water quality;
4) the rotary drum type micro-filter adopted by the micro-nano air flotation rotary drum micro-filter type algae-water separation system has the advantages of no corrosion, no pollution, high strength and light weight; the installation is easy, the use is convenient, and the maintenance cost is low; no medicament, continuous operation and large production capacity (250-3/d)；
5) The micro-nano air flotation rotary drum micro-filtration algae-water separation system effectively separates algae water by using gravity through the rotation of the rotary drum and the structure of the filter screen, the flow speed of algae slurry is high during the separation of the algae water, the algae and the water are easy to discharge, the filter screen is not easy to block, the performance is stable, the operation is safe and reliable, the separation effect of the algae water is good, and the mechanical automation level is high; meanwhile, algae adhered to the rotary drum in the separation process can be removed through the scraper device, so that the separation efficiency is improved;
6) the micro-nano air flotation rotary drum micro-filtration algae-water separation system of the utility model is additionally provided with the pull type filter screen, further separates algae water falling from the rotary drum, and can also prevent the water outlet from being blocked;
7) the micro-nano air flotation rotary drum micro-filtration algae-water separation system has the advantages of refined technology, simple and easily managed equipment and stable water quality treatment effect, reduces the concentration of pollutants in wastewater, relieves smell, relieves water environment burden, and is beneficial to restoration of water environment;
8) the utility model discloses micro-nano air supporting rotary drum micro-filtration formula algae water separation system handles the scale and can design according to actual need is nimble, can provide technical support for china's lake algae is administered, and easy operation is convenient, and application prospect is good.
Drawings
FIG. 1 is a schematic front view of a micro-nano air flotation rotary drum micro-filtration algae-water separation system according to embodiment 1 of the present invention;
FIG. 2 is a schematic front view of a micro-nano air-flotation rotary drum micro-filtration algae-water separation system according to embodiment 1 of the present invention;
fig. 3 is a schematic plan view of the micro-nano air flotation rotary drum micro-filtration algae-water separation system according to embodiment 1 of the present invention;
fig. 4 is a schematic front view of a micro-nano air flotation rotary drum micro-filtration algae-water separation system according to embodiment 2 of the present invention;
fig. 5 is a schematic front view of a micro-nano air-flotation rotary drum micro-filtration algae-water separation system in embodiment 2 of the present invention;
fig. 6 is a schematic plan view of a micro-nano air flotation rotary drum micro-filtration algae-water separation system according to embodiment 2 of the present invention;
wherein: 1-separating the box body; 11-left air-bearing cavity; 12-a right separation chamber; 2-a separation device; 21-an air floatation mechanism; 211-a separation water inlet; 212-micro nano bubble generator; 213-micro nano bubble releaser; 214-a hose; 22-algae-laden water separating mechanism; 221-drum microfiltration unit; 2211-inner supporting frame of the rotary drum; 2212-drum strainer; 2213-rotating shaft; 2214-electric machine; 222-separating an algae outlet; 223-algae scraping component; 2231-a scraper; 2232-a guide inclined plate; 2233-baffle plate; 224-a pull-out screen; 225-a separate water outlet; 226-pull port; 3-a flow guide clapboard; 4-screw extrusion dewaterer; 41-body; 42-an algae inlet of the screw extrusion dehydrator; 43-water outlet of screw extrusion dewaterer; 44-an algae outlet of the screw extrusion dehydrator; 45-taper screw axis; 46-variable diameter helical blades; 5-algae collecting box.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Referring to fig. 1 to 6, the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used to limit the limit conditions that the present invention can be implemented, so that the present invention has no essential technical significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the terms such as "top", "bottom", "upper", "lower", "inner" and "outer" used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are considered to be the scope of the present invention without substantial technical changes.
Example 1:
as shown in fig. 1-3, the utility model provides a micro-nano air supporting rotary drum micro-filtration formula algae-water separation system, its separation box 1 that includes the algae-water mixture that the holding is waited to separate and place separation box 1 inside separator 2 with algae-water mixture solid-liquid separation in, separation box top is uncovered, separator 2 includes air supporting mechanism 21, algae-water separation mechanism 22 and places in between and separates into left air supporting chamber 11, the water conservancy diversion baffle 3 of right separation chamber 12 with separation box 1 inside, wherein, air supporting mechanism 21 is including locating separation water inlet 211 on the left air supporting chamber lateral wall, placing in the outer micro-nano bubble generator 212 of separation box and with micro-nano bubble generator 212 pipe connection and the micro-nano bubble releaser 213 of placing in separation water inlet below left air supporting chamber 11; the algae-laden water separation mechanism 22 comprises a rotary drum type microfiltration component 221 fixedly suspended at the upper part of the right separation cavity and parallel to the diversion partition plate 3, a separated algae outlet 222 arranged at the top of the side wall of the right separation cavity parallel to the rotary drum type microfiltration component 221, an algae scraping component 223 arranged at the algae outlet 222, a pull type filter screen 224 arranged below the rotary drum type microfiltration component and parallel to but not in contact with the bottom of the right separation cavity, and a separation water outlet 225 arranged on the side wall of the right separation cavity below the pull type filter screen, wherein the rotary drum type microfiltration component 221 is close to but not in contact with the algae scraping component 223 on the upper edge of the diversion partition plate; the algae-water mixture to be separated enters the left air flotation cavity 11 from the separation water inlet 211, enters the right separation cavity 12 under the action of rising buoyancy of the micro-nano bubbles generated by the micro-nano bubble generator 212 and released by the micro-nano bubble releaser 213 and is guided by the flow guide partition plate to flow onto the drum type microfiltration component 221, algae and water are separated under the rotation and filtration of the drum type microfiltration component 221, the algae are scraped by the algae scraping component 223 and slide out of the separation box, and the water is discharged out of the separation box through the separation water outlet 225.
The drum type microfiltration component 221 comprises a drum inner support 2211, a drum filter 2212 wrapped outside the drum inner support, a rotating shaft 2213 for driving the drum inner support 2211 to rotate and a motor 2214 for driving the rotating shaft 2213 to rotate, wherein the rotating shaft 2213 is arranged on two opposite side walls of the separation box body 1 and is parallel to the diversion partition plate 3; the aperture of the drum filter screen is 100-1250 meshes.
The micro-nano bubble releaser 213 is connected with the micro-nano bubble generator 212 through a hose 214.
The height of the diversion baffle plate is lower than that of the side wall of the separation box body.
The height of the upper edge of the diversion baffle plate is lower than the height of the axis of the rotating shaft, and the height difference is not more than the inner diameter of the drum filter screen; the horizontal distance from the upper edge of the diversion baffle plate to the left side of the rotary drum filter screen is larger than zero and smaller than 5 cm.
The pull-out screen 224 is removed or inserted through a pull-out opening 226 provided in the side wall of the right separation chamber.
The algae scraping component 223 comprises a scraping plate 2231 which is arranged at the algae separating outlet 222 and is opposite to the rotating direction of the drum filter 2212, and a guide inclined plate 2232 which is connected with the tail end of the scraping plate and extends towards the lower right; the upper edge line of the scraper is parallel to the axis of the rotating shaft, the height of the upper edge line of the scraper is lower than the height of the axis of the rotating shaft, and the height difference is not more than the inner diameter of the drum filter screen; the length of the upper edge line of the scraper is not more than the length of the drum filter screen; the horizontal distance from the upper edge line of the scraper to the right side of the drum filter screen is more than zero and less than 5 cm; the drum screen 2212 rotates clockwise.
Baffles 2233 are arranged on the front side and the rear side of the scraper 2231 and the guide sloping plate 2232.
The included angle between the scraper 2231 and the horizontal plane is 45-90 degrees; the included angle between the inclined guide plate 2232 and the horizontal plane is 45-90 degrees.
Example 2:
as shown in fig. 4-6, the utility model provides a micro-nano air-flotation rotary drum micro-filtration algae-water separation system, except that there are the same separation box 1, separator 2 with embodiment 1, still include screw extrusion dehydrator 4 (can purchase the finished product as required), as shown in fig. 5, it includes, organism 41, the screw extrusion dehydrator who locates on organism 41 advances algae mouth 42, screw extrusion dehydrator delivery port 43 and screw extrusion dehydrator goes out algae mouth 44; an algae inlet 42 of the screw extrusion dehydrator is connected with the tail end of the guide inclined plate, a water outlet 43 of the screw extrusion dehydrator is communicated with a separation water outlet 225 through a pipeline, an algae outlet 44 of the screw extrusion dehydrator is connected with the algae collecting box 5, algae residues after air floatation and drum microfiltration are jointly extruded by an inner taper screw shaft 45 (driven by a motor) and a reducing screw blade 46 in the machine body 41, and water of the algae residues is discharged through the water outlet 43 of the screw extrusion dehydrator; the water content of the compressed algae residue is greatly reduced, and the algae residue falls into the algae collecting box 5 through the algae outlet 44 of the screw extrusion dehydrator.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A micro-nano air-flotation rotary drum micro-filtration algae-water separation system comprises a separation box body for containing an algae-water mixture to be separated and a separation device which is arranged in the separation box body and used for separating solid from liquid of the algae-water mixture, wherein the top of the separation box body is open, the micro-nano air-flotation rotary drum micro-filtration algae-water separation system is characterized in that the separation device comprises an air-flotation mechanism, an algae-water separation mechanism and a flow guide partition plate which is arranged between the air-flotation mechanism and the algae-water separation mechanism and used for dividing the inner part of the separation box body into a left air-flotation cavity and a right separation cavity, wherein,
the air floatation mechanism comprises a separation water inlet arranged on the side wall of the left air floatation cavity, a micro-nano bubble generator arranged outside the separation box body and a micro-nano bubble releaser which is connected with the pipeline of the micro-nano bubble generator and arranged in the left air floatation cavity below the separation water inlet;
the algae-laden water separation mechanism comprises a rotary drum type microfiltration component which is fixedly suspended at the upper part of the right separation cavity and is parallel to the diversion baffle plate, a separation algae outlet which is arranged at the top of the side wall of the right separation cavity parallel to the rotary drum type microfiltration component, an algae scraping component which is arranged at the separation algae outlet, a pull type filter screen which is arranged below the rotary drum type microfiltration component and is parallel to the bottom of the right separation cavity but is not contacted with the bottom of the right separation cavity, and a separation water outlet which is arranged on the side wall of the right separation cavity below the pull type filter screen, wherein,
the drum-type microfiltration component is close to but not against the upper edge of the flow guide clapboard and the algae scraping component,
the algae-water mixture to be separated enters the left air flotation cavity from the separation water inlet, under the action of rising buoyancy of the micro-nano bubbles generated by the micro-nano bubble generator and released by the micro-nano bubble releaser and the flow guide of the flow guide partition plate, the micro-nano bubbles enter the right separation cavity and flow onto the drum type microfiltration component, the algae and water are separated under the rotation and filtration of the drum type microfiltration component, the algae are scraped by the algae scraping component and slide out of the separation box, and the water is discharged out of the separation box through the separation water outlet.
2. The micro-nano air-flotation drum microfiltration type algae-water separation system according to claim 1, wherein the drum microfiltration component comprises a drum inner support frame, a drum filter screen wrapped outside the drum inner support frame, a rotating shaft driving the drum inner support frame to rotate and a motor driving the rotating shaft to rotate; the rotating shaft is arranged on two opposite side walls of the separation box body and is parallel to the flow guide partition plate; the aperture of the drum filter screen is 100-1250 meshes.
3. The micro-nano air-flotation drum micro-filtration algae-water separation system according to claim 2, wherein the micro-nano bubble releaser is connected with the micro-nano bubble generator through a hose.
4. The micro-nano air-flotation drum micro-filtration algae-water separation system according to claim 3, wherein the height of the flow guide partition plate is lower than that of the side wall of the separation box body.
5. The micro-nano air-flotation drum micro-filtration algae-water separation system according to claim 4, wherein the height of the upper edge of the flow guide partition plate is lower than the axis height of the rotating shaft, and the height difference is not greater than the inner diameter of the drum filter screen; the horizontal distance from the upper edge of the diversion baffle plate to the left side of the rotary drum filter screen is larger than zero and smaller than 5 cm.
6. The micro-nano air-flotation drum micro-filtration algae-water separation system according to claim 5, wherein the pull-out filter screen is taken out or inserted through a pull-out opening arranged on the side wall of the right separation chamber.
7. The micro-nano air-flotation drum micro-filtration algae-water separation system according to any one of claims 2 to 6, wherein the algae scraping component comprises a scraping plate arranged at an algae separation outlet and opposite to the rotation direction of the drum filter screen, and a guide inclined plate connected with the tail end of the scraping plate and extending obliquely to the lower right; the upper edge line of the scraper is parallel to the axis of the rotating shaft, the height of the upper edge line of the scraper is lower than the height of the axis of the rotating shaft, and the height difference is not more than the inner diameter of the drum filter screen; the length of the upper edge line of the scraper is not more than the length of the drum filter screen; the horizontal distance from the upper edge line of the scraper to the right side of the drum filter screen is more than zero and less than 5 cm; the drum strainer rotates clockwise.
8. The micro-nano air-flotation drum micro-filtration algae-water separation system according to claim 7, wherein baffles are arranged on the front side and the rear side of the scraper and the inclined guide plate.
9. The micro-nano air-floating drum micro-filtration algae-water separation system of claim 8, wherein an included angle between the scraper and a horizontal plane is 45-90 degrees; the included angle between the inclined guide plate and the horizontal plane is 45-90 degrees.
10. The micro-nano air-flotation rotary drum micro-filtration algae-water separation system according to claim 1, 2, 3, 4, 5, 6, 8 or 9, wherein the separation system further comprises a screw extrusion dehydrator, which comprises a machine body, and a screw extrusion dehydrator algae inlet, a screw extrusion dehydrator water outlet and a screw extrusion dehydrator algae outlet which are arranged on the machine body; the algae inlet of the screw extrusion dehydrator is connected with the tail end of the guide inclined plate, the water outlet of the screw extrusion dehydrator is communicated with the separation water outlet through a pipeline, and the algae outlet of the screw extrusion dehydrator is connected with the algae collecting box.
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| CN202023213710.2U CN214060125U (en) | 2020-12-28 | 2020-12-28 | Micro-nano air-flotation rotary drum micro-filtration type algae-water separation system |
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| CN202023213710.2U CN214060125U (en) | 2020-12-28 | 2020-12-28 | Micro-nano air-flotation rotary drum micro-filtration type algae-water separation system |
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