CN108569816B - Little algae collection device of water treatment - Google Patents
Little algae collection device of water treatment Download PDFInfo
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- CN108569816B CN108569816B CN201810433207.6A CN201810433207A CN108569816B CN 108569816 B CN108569816 B CN 108569816B CN 201810433207 A CN201810433207 A CN 201810433207A CN 108569816 B CN108569816 B CN 108569816B
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- microalgae
- magnetic medium
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- pipe
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
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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
- C02F1/00—Treatment of water, waste water, or sewage
Abstract
The invention discloses a water treatment microalgae collecting device, which collects microalgae by adopting an electromagnetic principle, wherein electromagnetic media such as magnetic seeds and the like are added into a microalgae adsorption tank, the microalgae and the magnetic seeds can form polymers, then, when the microalgae pass through the microalgae collecting tank, an electromagnet ball cage can well adsorb the polymers, then, after the polymers are washed, separation liquid is used for separation, and then, the polymers are cleaned and recycled, so that the microalgae treatment efficiency is greatly improved, and the treatment cost is reduced.
Description
Technical Field
The invention relates to a microalgae collecting device for water treatment, belonging to the technical field of water treatment equipment.
Background
At present, scholars at home and abroad make a great deal of research on the aspects of developing deep purification of microalgae sewage and production potential of renewable energy sources, and make positive progress on aspects of sewage purification mechanism, algae species screening, reactor design, process condition control, algae cell processing and utilization and the like.
The common methods for separating the microalgae comprise a centrifugal method, a filtration method (comprising membrane filtration), an air floatation method, a direct gravity settling method, a flocculation method and the like, wherein the centrifugal method is a rapid and reliable separation and collection method, but does not have the potential of large-scale engineering application under the current technical conditions due to extremely high energy consumption and investment and operation cost. The filtration method has low energy consumption and cost only when separating filamentous algae, is very easy to form membrane pollution to non-filamentous algae, has high energy consumption and operation cost, and cannot meet the requirements of high-efficiency and low-cost collection. The air flotation method is only suitable for harvesting unicellular algae, and can not be generally suitable under the condition of sewage mixed culture, in addition, because a large amount of micro bubbles are generated, the investment and operation cost/energy consumption are high, even the over-centrifugation method is possibly high, the direct gravity settling method is the separation and harvesting method with the lowest cost, but the time consumption is long, and the separation effect and the reliability are the worst.
With the continuous development and maturity of the magnetic recovery technology, the magnetic recovery technology is adopted to realize the collection and treatment of microalgae, and the device has the characteristics of good economic benefit, low cost and high efficiency, so that how to design an electromagnetic recovery microalgae collection device has an extremely important effect on sewage treatment.
Aiming at the problems, the invention provides a water treatment microalgae collecting device, which improves the microalgae collecting efficiency and reduces the collecting cost.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a water treatment microalgae collecting device comprises a microalgae adsorption tank, a microalgae collecting tank, a magnetic medium separation tank and a magnetic medium cleaning and recovering tank which are sequentially connected, and is characterized in that a magnetic medium adding hopper for adding a magnetic medium is arranged at the upper end of the microalgae adsorption tank 1, the upper part of the microalgae adsorption tank is also connected with a treatment water inlet, the bottom of the microalgae adsorption tank is connected to the left end of the microalgae collecting tank through a water pipe, a plurality of rotatable electromagnet ball cages are arranged in the microalgae collecting tank, the right end of the microalgae collecting tank is connected with a treatment water discharge pipe, and a flushing component is also arranged on the microalgae collecting tank;
the bottom of the microalgae collecting tank is connected to the magnetic medium separating tank through a flushing recovery pipe, and a control valve for controlling the on-off of the flushing recovery pipe is arranged on the flushing recovery pipe;
a separation liquid adding pipe is arranged at the upper end of the magnetic medium separation tank, and the bottom of the magnetic medium separation tank is connected to the magnetic medium cleaning and recovering tank through a delivery pump;
and a cleaning component is arranged at the top of the magnetic medium cleaning and recovering tank.
Further, as preferred, the washing subassembly includes high pressure flushing joint, washing dish and high pressure nozzle, wherein, high pressure flushing joint sets up the top of little algae collecting tank, high pressure flushing joint with set up little algae collecting tank's washing dish intercommunication, be provided with a plurality of high pressure nozzle on the washing dish, the orientation of each high pressure nozzle all faces electromagnet ball cage sets up.
Further, as preferred, the electromagnet ball cage is a spherical netted cage structure, and the whole spherical cage structure is made of an electromagnetic material.
Further, as preferred, little algae collection tank's top is provided with a plurality of motor framves, is provided with the motor on every motor frame, the output of motor is connected to the dwang, the dwang stretches into little algae collection tank is interior, just the center of electro-magnet ball cage passes the dwang sets up, so that by the dwang drives the rotation.
Further, as preferred, the cleaning assembly comprises a cleaning liquid adding pipe and a cleaning spray head, wherein the cleaning liquid adding pipe is arranged at the top of the magnetic medium cleaning and recovering tank, and the cleaning spray head is arranged at one end, extending into the magnetic medium cleaning and recovering tank, of the cleaning liquid adding pipe.
Further, as preferred, the bottom in the magnetic medium washs the recovery jar is provided with the filter screen, the pump sending pipe of delivery pump stretches into upwards stretch out behind the magnetic medium washs the recovery jar the filter screen, the filter screen top that the pump sent the pipe is provided with the check valve, the pipe end of the upper end of check valve is provided with out the basin.
Further, preferably, a magnetic medium discharging door is arranged above the filter screen of the magnetic medium cleaning and recycling tank.
Further, preferably, the separation liquid added to the separation liquid addition pipe at the upper end of the magnetic medium separation tank is acidic hydrochloric acid.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the microalgae is collected by adopting an electromagnetic principle, electromagnetic media such as magnetic seeds and the like are added into the microalgae adsorption tank, the microalgae and the magnetic seed media can form polymers, then, when the microalgae pass through the microalgae collection tank, the polymers can be well adsorbed by the electromagnet ball cage, then, after the polymers are washed, the polymers are separated by using a separation liquid, and then, the polymers are cleaned and recycled, so that the microalgae treatment efficiency is greatly improved, and the treatment cost is reduced.
Drawings
FIG. 1 is a schematic view of a water treatment microalgae collection apparatus according to the present invention;
FIG. 2 is a schematic diagram of a microalgae collection tank of a water treatment microalgae collection apparatus of the present invention;
FIG. 3 is a schematic diagram of a magnetic medium cleaning and recovering tank of a water treatment microalgae collecting device according to the present invention;
the device comprises a microalgae adsorption tank 1, a microalgae collection tank 2, a magnetic medium separation tank 3, a magnetic medium cleaning and recovery tank 4, a magnetic medium charging hopper 5, a magnetic medium charging hopper 6, a treated water inlet 7, a high-pressure flushing joint 8, a flushing disc 9, a motor frame 10, a motor 11, a high-pressure spray head 12, an electromagnet ball cage 13, a flushing recovery pipe 14, a treated water discharge pipe 15, a separation liquid charging pipe 16, a cleaning liquid charging pipe 17, a water outlet disc 18, a one-way valve 19, a filter screen 20, a cleaning liquid discharge pipe 21, a delivery pump 22, a cleaning spray head 23 and a magnetic medium discharge door.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a water treatment microalgae collecting device comprises a microalgae adsorption tank 1, a microalgae collection tank 2, a magnetic medium separation tank 3 and a magnetic medium cleaning and recovery tank 4 which are sequentially connected, and is characterized in that the upper end of the microalgae adsorption tank 1 is provided with a magnetic medium adding hopper 5 for adding a magnetic medium, the upper part of the microalgae adsorption tank is also connected with a treated water inlet 6, the bottom of the microalgae adsorption tank 1 is connected to the left end of the microalgae collection tank 2 through a water pipe, a plurality of rotatable electromagnet ball cages 12 are arranged in the microalgae collection tank 2, the right end of the microalgae collection tank 2 is connected with a treated water discharge pipe 14, and the microalgae collection tank is also provided with a flushing component;
the bottom of the microalgae collecting tank 2 is connected to the magnetic medium separating tank 3 through a flushing recovery pipe, and a control valve for controlling the on-off of the flushing recovery pipe is arranged on the flushing recovery pipe;
a separation liquid adding pipe 15 is arranged at the upper end of the magnetic medium separation tank 3, and the bottom of the magnetic medium separation tank 3 is connected to the magnetic medium cleaning and recovering tank 4 through a delivery pump 21;
and a cleaning component is arranged at the top of the magnetic medium cleaning and recovering tank 4.
In this embodiment, the washing subassembly includes high pressure flushing joint 7, washing dish 8 and high pressure nozzle 11, wherein, high pressure flushing joint 7 sets up little algae collecting tank 2's top, high pressure flushing joint 7 with set up little algae collecting tank in washing dish 8 intercommunication, be provided with a plurality of high pressure nozzle 11 on the washing dish 8, the orientation of each high pressure nozzle 11 all faces the setting of electro-magnet ball cage.
The electromagnet ball cage is of a spherical reticular cage body structure, and the whole spherical cage body structure is made of an electromagnetic material. The top of little algae collecting tank is provided with a plurality of motor framves 9, is provided with motor 10 on every motor frame, the output of motor is connected to the dwang, the dwang stretches into in little algae collecting tank, just the center of electro-magnet ball cage 12 passes the dwang sets up, so that by the dwang drives the rotation.
The cleaning assembly comprises a cleaning liquid adding pipe 16 and a cleaning spray head 22, wherein the cleaning liquid adding pipe 16 is arranged at the top of the magnetic medium cleaning and recovering tank, and the cleaning spray head 22 is arranged at one end, extending into the magnetic medium cleaning and recovering tank, of the cleaning liquid adding pipe 16.
The bottom in the magnetic medium washs recovery tank is provided with filter screen 19, the pump delivery pipe of delivery pump 21 stretches into upwards stretch out behind the magnetic medium washs recovery tank filter screen 19, the filter screen top of pump delivery pipe is provided with check valve 18, the pipe end of the upper end of check valve is provided with out basin 17.
In order to facilitate the taking out of the magnetic medium, a sealed magnetic medium discharging door 23 is arranged above the filter screen of the magnetic medium cleaning and recycling tank.
The separating medium added into the separating medium adding pipe at the upper end of the magnetic medium separating tank is acidic hydrochloric acid.
According to the invention, the microalgae is collected by adopting an electromagnetic principle, electromagnetic media such as magnetic seeds and the like are added into the microalgae adsorption tank, the microalgae and the magnetic seed media can form polymers, then, when the microalgae pass through the microalgae collection tank, the polymers can be well adsorbed by the electromagnet ball cage, then, after the polymers are washed, the polymers are separated by using a separation liquid, and then, the polymers are cleaned and recycled, so that the microalgae treatment efficiency is greatly improved, and the treatment cost is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A water treatment microalgae collecting device comprises a microalgae adsorption tank, a microalgae collecting tank, a magnetic medium separation tank and a magnetic medium cleaning and recovering tank which are sequentially connected, and is characterized in that a magnetic medium adding hopper for adding a magnetic medium is arranged at the upper end of the microalgae adsorption tank, the upper part of the microalgae adsorption tank is also connected with a treatment water inlet, the bottom of the microalgae adsorption tank is connected to the left end of the microalgae collecting tank through a water pipe, a plurality of rotatable electromagnet ball cages are arranged in the microalgae collecting tank, the right end of the microalgae collecting tank is connected with a treatment water discharge pipe, and a flushing component is also arranged on the microalgae collecting tank;
the bottom of the microalgae collecting tank is connected to the magnetic medium separating tank through a flushing recovery pipe, and a control valve for controlling the on-off of the flushing recovery pipe is arranged on the flushing recovery pipe;
a separation liquid adding pipe is arranged at the upper end of the magnetic medium separation tank, and the bottom of the magnetic medium separation tank is connected to the magnetic medium cleaning and recovering tank through a delivery pump;
the top of the magnetic medium cleaning and recovering tank is provided with a cleaning component;
the washing assembly comprises a high-pressure washing connector, a washing disc and high-pressure spray heads, wherein the high-pressure washing connector is arranged at the top of the microalgae collecting tank and is communicated with the washing disc arranged in the microalgae collecting tank, the washing disc is provided with a plurality of high-pressure spray heads, and the orientation of each high-pressure spray head faces to the electromagnet ball cage;
the electromagnet ball cage is of a spherical net cage body structure, and the whole spherical cage body structure is made of electromagnetic materials.
2. The water treatment microalgae collecting device of claim 1, wherein: the top of little algae collecting tank is provided with a plurality of motor framves, is provided with the motor on every motor frame, the output of motor is connected to the dwang, the dwang stretches into in little algae collecting tank, just the center of electro-magnet ball cage passes the dwang sets up, so that by the dwang drives the rotation.
3. The water treatment microalgae collecting device of claim 1, wherein: the cleaning assembly comprises a cleaning liquid adding pipe and a cleaning spray head, wherein the cleaning liquid adding pipe is arranged at the top of the magnetic medium cleaning and recovering tank, and the cleaning spray head is arranged at one end, extending into the magnetic medium cleaning and recovering tank, of the cleaning liquid adding pipe.
4. The water treatment microalgae collecting device of claim 1, wherein: the bottom in the magnetic medium washs recovery jar is provided with the filter screen, the pump send pipe of delivery pump stretches into upwards stretch out behind the magnetic medium washs recovery jar the filter screen, the filter screen top that the pump sent the pipe is provided with the check valve, the pipe end of the upper end of check valve is provided with out the basin.
5. The water treatment microalgae collecting device of claim 4, wherein: and a magnetic medium discharge door is arranged above the filter screen of the magnetic medium cleaning and recycling tank.
6. The water treatment microalgae collecting device of claim 4, wherein: the separation liquid added into the separation liquid adding pipe at the upper end of the magnetic medium separation tank is hydrochloric acid.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433207.6A CN108569816B (en) | 2018-05-08 | 2018-05-08 | Little algae collection device of water treatment |
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| CN201810433207.6A CN108569816B (en) | 2018-05-08 | 2018-05-08 | Little algae collection device of water treatment |
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| CN108569816A CN108569816A (en) | 2018-09-25 |
| CN108569816B true CN108569816B (en) | 2020-10-20 |
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| CN110684655B (en) * | 2019-10-18 | 2023-03-17 | 江苏大学 | Microalgae separation gradient magnetic stabilization fluidized bed device and microalgae harvesting method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691263A (en) * | 2009-09-27 | 2010-04-07 | 中国船舶重工集团公司第七〇二研究所 | Magnetically-adsorptive algae-laden water separation method and separation device thereof |
| CN201520695U (en) * | 2009-09-27 | 2010-07-07 | 中国船舶重工集团公司第七〇二研究所 | Magnetic force absorbing algae-water separating device |
| CN102234617A (en) * | 2010-05-07 | 2011-11-09 | 中国科学院过程工程研究所 | Method for separating and collecting microalgae by using magnetic medium |
| CN203033811U (en) * | 2013-01-05 | 2013-07-03 | 徐煜明 | Magnetic separation algae water separator |
| CN103289895A (en) * | 2013-05-16 | 2013-09-11 | 中国科学院过程工程研究所 | Magnetic separating device and method for microalgae recovery |
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- 2018-05-08 CN CN201810433207.6A patent/CN108569816B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691263A (en) * | 2009-09-27 | 2010-04-07 | 中国船舶重工集团公司第七〇二研究所 | Magnetically-adsorptive algae-laden water separation method and separation device thereof |
| CN201520695U (en) * | 2009-09-27 | 2010-07-07 | 中国船舶重工集团公司第七〇二研究所 | Magnetic force absorbing algae-water separating device |
| CN102234617A (en) * | 2010-05-07 | 2011-11-09 | 中国科学院过程工程研究所 | Method for separating and collecting microalgae by using magnetic medium |
| CN203033811U (en) * | 2013-01-05 | 2013-07-03 | 徐煜明 | Magnetic separation algae water separator |
| CN103289895A (en) * | 2013-05-16 | 2013-09-11 | 中国科学院过程工程研究所 | Magnetic separating device and method for microalgae recovery |
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