CN215479925U - Water treatment device - Google Patents
Water treatment device Download PDFInfo
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- CN215479925U CN215479925U CN202121022956.3U CN202121022956U CN215479925U CN 215479925 U CN215479925 U CN 215479925U CN 202121022956 U CN202121022956 U CN 202121022956U CN 215479925 U CN215479925 U CN 215479925U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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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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Abstract
The present invention provides a water treatment apparatus, comprising: the electrolytic cell comprises a cathode chamber provided with a cathode and an anode chamber provided with an anode, a raw water inlet for introducing raw water into the cathode chamber and the anode chamber, an acidic electrolyzed water outlet for discharging acidic electrolyzed water, an alkaline electrolyzed water outlet for discharging alkaline electrolyzed water, a cathode exhaust port for discharging gas generated in the cathode chamber, and an anode exhaust port for discharging gas generated in the anode chamber, wherein the cathode and the anode are both formed in hollow cylindrical shapes. By the water treatment device, the cell wall is not damaged when the blue algae is removed, the growth of the blue algae can be effectively inhibited, and the generation of blue algae toxin and blue algae peculiar smell substances can be inhibited.
Description
Technical Field
The present invention relates to a water treatment apparatus, and more particularly to a water treatment apparatus for preventing and removing blue-green algae, cyanobacteria toxins, and cyanobacteria odor substances in reservoirs, lakes, rivers, and the like.
Background
At present, water eutrophication becomes an environmental problem which seriously affects water quality, can cause water quality pollution and destroy the ecological environment. Wherein, the cyanobacterial bloom is an important characteristic of water eutrophication. Blue algae, also known as Cyanobacteria (Cyanobacteria), can produce a series of highly toxic natural toxins (cyanobacterials) and odorous substances that endanger human health. When the blue algae in the reservoir, lake or river are propagated in large quantities to form water bloom, great harm is brought to human beings.
The existing technology for removing blue algae is mainly divided into a physical treatment technology and a chemical treatment technology, wherein the physical technology for removing blue algae is mainly used for carrying out physical treatment by spraying pressurized water from a nozzle, and the chemical technology for removing blue algae is mainly used for dissolving chemical substances in water and enabling the chemical substances to react with blue algae.
SUMMERY OF THE UTILITY MODEL
When blue-green algae is removed by the above-mentioned conventional techniques, the cell wall of the blue-green algae is easily broken, and toxins (e.g., microcystins) in the cells of the blue-green algae flow out, which not only causes secondary pollution to water, but also cannot be food for other aquatic animals.
In addition, many algae utilize carbon dioxide (CO)2) As a carbon source for photosynthesis. The cyanobacteria can utilize bicarbonate ions (HCO) in addition to carbon dioxide gas3 -). If the blue algae are abnormally proliferated on the surface layer of a reservoir, lake or river, pH rises and carbon dioxide gas becomes bicarbonate ion or carbonate ion (CO)3 2-) Since algae other than cyanobacteria cannot utilize carbon dioxide as a carbon nutrient salt, the growth of algae other than cyanobacteria is inhibited. Since the competitive proliferation of cyanobacteria is inhibited, only cyanobacteria preferentially proliferate.
The following formula 1 represents a reaction of carbon dioxide in water.
[ formula 1]
In the above formula 1, the left side is an acidic environment, and the right side is a basic environment.
If the pH is lowered by acidic ionized water and the above formula is shifted to the left to increase the proportion of carbonic acid gas, the proliferation of green algae, diatoms and other photosynthetic algae, which are competitive algae for blue algae, can be promoted, and the preferential proliferation of blue algae can be prevented.
Further, if the oxygen depletion of the bottom layer, which causes the production of blue-green algae, can be improved, the growth of blue-green algae can be effectively suppressed.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a water treatment apparatus which can effectively suppress the growth of blue-green algae without destroying cell walls when removing blue-green algae, and can suppress the generation of blue-green algae toxins and blue-green algae odor substances.
The present invention provides a water treatment apparatus, comprising: the electrolytic cell comprises a cathode chamber and an anode chamber, wherein a cathode is arranged in the cathode chamber, and an anode is arranged in the anode chamber; a raw water introduction unit connected to the cathode chamber and the anode chamber, respectively, for introducing raw water into the cathode chamber and the anode chamber; an alkaline electrolyzed water discharge unit connected to the cathode chamber for discharging alkaline electrolyzed water; an acidic electrolyzed water discharge unit connected to the anode chamber for discharging acidic electrolyzed water, and a cathode exhaust port provided at an upper portion of the cathode chamber for discharging gas generated in the cathode chamber; and an anode exhaust port provided at an upper portion of the anode chamber for exhausting gas generated in the anode chamber, wherein the cathode and the anode are formed in a hollow cylindrical shape.
Optionally, the cross-sectional shapes of the cathode and the anode are circular, elliptical, or polygonal.
Optionally, the cathode and the anode have a multilayer structure with a surface coated with a conductive material, or a single-layer structure made of a conductive material, and the conductive material is at least one of graphite, superconducting carbon, acetylene black, carbon black, ketjen black, carbon dots, carbon nanotubes, graphene, carbon nanotubes, titanium, zinc, tin, lithium, silver, palladium, platinum, and gold.
Optionally, the raw water is a liquid containing at least one of cyanobacteria, cyanobacteria toxins and cyanobacteria odor substances.
The water treatment device can fully electrolyze electrolyte components in raw water to generate acidic electrolyzed water and alkaline electrolyzed water. The generated acidic electrolyzed water can be directly discharged to the blue algae on the surface layers of reservoirs, lakes or rivers and the like, the blue algae can be killed in a mode of not damaging cell walls, the growth of the blue algae can be effectively inhibited, and the generation of blue algae toxins and blue algae peculiar smell substances can be inhibited. Furthermore, the water treatment apparatus can decompose water molecules into hydrogen gas and oxygen gas, the hydrogen gas can be recycled as a raw material, and the oxygen gas can be mixed into the aeration air of the bottom oxygen-poor water area which causes the phosphorus acid and the like to be ionized under the reducing environment and to provide nutrition to the blue algae, so that the oxygen gas can be effectively supplied to better inhibit the growth of the blue algae compared with the conventional aeration technology.
Optionally, the water treatment device may further include: a cathode water guide plate arranged in the cathode chamber, formed to surround the hollow cylindrical cathode, and used for enabling the liquid in the cathode chamber to flow back up and down along the cathode water guide plate; and an anode water guide plate disposed in the anode chamber and formed to surround the hollow cylindrical anode, for allowing the liquid in the anode chamber to flow back up and down along the anode water guide plate.
Optionally, the shape of the cathode water guide plate corresponds to the shape of the cathode, and the shape of the anode water guide plate corresponds to the shape of the anode.
The water guide plate of the water treatment apparatus can form a vertical return flow in the cathode chamber or the anode chamber, thereby further sufficiently electrolyzing electrolyte components and water molecules in the cathode chamber or the anode chamber and more effectively guiding gas generated in the vicinity of the cathode or the anode to the upper side of the cathode chamber or the anode chamber.
Optionally, the water treatment device may further include: a cathode gas-liquid separation plate disposed between the cathode and the cathode exhaust port in the cathode chamber, for blocking gas-liquid flowing to the cathode exhaust port and separating the gas-liquid into liquid and gas; and an anode gas-liquid separation plate disposed between the anode and the anode exhaust port in the anode chamber, for blocking gas-liquid flowing to the anode exhaust port and separating the gas-liquid into liquid and gas.
Optionally, the cathode gas-liquid separation plate is disposed above the cathode water guide plate and between the cathode gas outlet, and is formed such that a vertical projection thereof covers a vertical projection range of the cathode water guide plate, and the anode gas-liquid separation plate is disposed above the anode water guide plate and between the anode gas outlet, and is formed such that a vertical projection thereof covers a vertical projection range of the anode water guide plate.
Optionally, the cathode gas-liquid separation plate and the anode gas-liquid separation plate are in a separate body shape or an integrated body shape connected with each other.
The gas-liquid separation plate of the water treatment apparatus not only forms a vertical return flow together with the water guide plate, but also effectively separates gas and liquid to recover gas generated in the cathode chamber or the anode chamber.
Alternatively, in the above water treatment apparatus, a diaphragm that allows ions to flow between the cathode chamber and the anode chamber but does not allow water molecules to flow between the cathode chamber and the anode chamber is provided between the cathode chamber and the anode chamber in the electrolytic cell.
Through the diaphragm, an independent reflux system can be formed in the cathode chamber and the anode chamber respectively. Thus, not only can more alkaline and acidic electrolyzed water be electrolytically generated in the cathode chamber and the anode chamber, but also hydrogen gas generated in the vicinity of the cathode and oxygen gas generated in the vicinity of the anode can be better recovered.
Drawings
FIG. 1 is a schematic configuration diagram of a water treatment apparatus according to a first embodiment of the present invention;
fig. 2 is an example of a sectional structure of a cathode and an anode of the first embodiment of the present invention;
FIG. 3 is a schematic structural view of a water treatment apparatus according to a second embodiment of the present invention;
fig. 4 is one example of a sectional structure of a cathode water guide plate and an anode water guide plate of a second embodiment of the present invention;
FIG. 5 is a schematic structural view of a water treatment apparatus according to a third embodiment of the present invention;
fig. 6 is a schematic configuration diagram of a water treatment apparatus according to a fourth embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the water treatment apparatus according to the present embodiment is described by way of example as being used in a reservoir, lake, river, or the like, but the present invention is not limited thereto. For example, the method can be applied to various water such as marshland, seawater, soda water (also called semi-seawater), sewage and the like. The present invention is not limited to the following embodiments.
A first embodiment of the present invention will be described below with reference to fig. 1 and 2. Fig. 1 is a schematic configuration diagram of a water treatment apparatus according to a first embodiment of the present invention.
As shown in fig. 1, the water treatment apparatus of the first embodiment includes an electrolytic bath 10, a raw water inlet 20, an alkaline electrolyzed water outlet 30, an acidic electrolyzed water outlet 40, a cathode vent 50, and an anode vent 60. The electrolytic cell 10 has a cathode chamber 110 and an anode chamber 120, wherein a cathode 111 is provided in the cathode chamber 110, and an anode 121 is provided in the anode chamber 120.
The raw water introduction unit 20 has one end connected to the outside by a pump or the like to introduce raw water from the outside into the electrolytic cell 10, and the other end connected to the cathode chamber 110 and the anode chamber 120 by a branch structure to introduce raw water into the cathode chamber 110 and the anode chamber 120, respectively. The raw water introduction unit 20 may be provided at any position on the wall of the electrolytic cell 10 as long as it can introduce external raw water into the cathode chamber 110 and the anode chamber 120. As an example, the raw water introduction part 20 may be disposed below the electrolytic bath 10. In this case, the raw water can flow vertically in the electrolytic cell 10 and easily flow between the cathode and the anode, and thus the electrolyte contained in the raw water can be efficiently electrolyzed. Thus, acidic electrolyzed water and alkaline electrolyzed water can be obtained from raw water.
The alkaline electrolyzed water discharging part 30 has one end connected to the cathode chamber 110 and the other end connected to a water discharging means such as a pipe. The user can discharge the alkaline electrolyzed water into the lower water region below the surface water region through the alkaline electrolyzed water discharge part 30 to neutralize the low pH value at which phosphate ions and the like are easily eluted in the bottom region of a reservoir, a lake, a river or the like, thereby increasing the pH value to near neutrality, for example, 6 to 7, and can supply cations for immobilizing phosphoric acid, thereby suppressing elution of phosphate, preventing proliferation of plankton of microcystis, and achieving the purpose of water purification.
One end of the acidic electrolyzed water discharge unit 40 is connected to the anode chamber 120, and the other end is connected to a water discharge device such as a pipe. The user can discharge the acidic electrolyzed water to the surface layer of a reservoir, lake, river or the like where the blue-green algae easily grow through the acidic electrolyzed water discharge part 40 to kill the blue-green algae. Moreover, since the acidic electrolyzed water can lower the pH value, the above formula 1 can be moved to the left side, and the proportion of the carbonic acid gas is increased, so that the proliferation of green algae, diatoms and other photosynthetic algae which are competitive algae of blue algae can be promoted, and further the preferential proliferation of blue algae can be effectively prevented, and further the generation of blue algae toxins and blue algae odor substances can be prevented.
In the present embodiment, the cathode 111 and the anode 121 are each formed in a hollow cylindrical shape, and the sectional shape thereof is a circle, an ellipse, or a polygon, preferably, a circle or a regular polygon. The cathode 111 and the anode 121 may be integrally formed electrodes, or may be an electrode sheet group formed by a plurality of electrode sheets. The cathode 111 and the anode 121 may have the same or different cross-sectional shapes. The heights of the cathode 111 and the anode 121 may be the same or different. The cathode 111 and the anode 121 may be made of the same material or different materials.
Fig. 2 shows an example in which the cathode 111 and the anode 121 are each constituted by four electrode sheets. Since the cathode 111 and the anode 121 each have a hollow cylindrical shape, hydrogen gas can be easily generated from water molecules in the cathode chamber 110, and oxygen gas can be easily generated from water molecules in the anode chamber 120.
The hydrogen gas generated in the cathode chamber 110 moves upward and is discharged to the outside through the cathode vent 50 provided at the upper portion of the cathode chamber 110. These hydrogen gases can be recovered and utilized as fuel for fuel cells and the like.
The oxygen gas generated in anode chamber 120 moves upward and is discharged to the outside through anode gas outlet 60 provided at the upper portion of anode chamber 120. Specifically, these oxygen gases can be mixed into the aeration air of the bottom oxygen-depleted water area, which causes the phosphorus acid or the like to be ionized in the reducing environment and to supply nutrients to the blue algae, and therefore, compared with the conventional aeration technique, the oxygen gases can be effectively supplied to suppress the growth of the blue algae more effectively, and further, the production of the cyanobacteria toxins and the cyanobacteria odor substances can be suppressed.
Next, a second embodiment of the present invention will be described with reference to fig. 3 and 4. In the structure of the water treatment apparatus of the second embodiment, the same contents as those of the water treatment apparatus of the first embodiment are omitted.
Fig. 3 is a schematic configuration diagram of a water treatment apparatus according to a second embodiment of the present invention. The water treatment apparatus according to the second embodiment is different from the water treatment apparatus according to the first embodiment in that a cathode water guide plate 112 and an anode water guide plate 122 may be further provided.
As shown in fig. 3, a cathode water guide plate 112 is disposed in the cathode chamber 110 and formed to surround the hollow cylindrical cathode 111, and an anode water guide plate 122 is disposed in the anode chamber 120 and formed to surround the hollow cylindrical anode 121.
In the cathode chamber 110, the liquid may flow back up and down along the cathode water guide plate 112, and specifically, the liquid may flow from top to bottom outside the cathode water guide plate 112 after being guided from bottom to top in the cathode water guide plate 112 to above the cathode water guide plate 112. By this backflow, more electrolyte flows between the cathode 111 and the anode 121, and further, the electrolyte can be more sufficiently efficiently decomposed. Further, since the cathode water guide plate 112 is disposed outside the cathode 111 and guides the liquid in the cathode water guide plate 112 to flow upward from below, it is possible to more effectively bring the hydrogen gas generated near the cathode 111 to above the cathode chamber 110, thereby being more advantageous to effectively recover the hydrogen gas generated in the cathode chamber 110.
Also, the liquid may flow back up and down along the anode water guide plate 122 in the anode chamber 120, and specifically, the liquid may flow from top to bottom outside the anode water guide plate 122 after being guided from bottom to top above the anode water guide plate 122 in the anode water guide plate 122. By this backflow, more electrolyte flows between the cathode 111 and the anode 121, and further, the electrolyte can be more sufficiently efficiently decomposed. Further, since the anode water guide plate 122 is disposed outside the anode 121 and guides the liquid in the anode water guide plate 122 to flow upward from below, oxygen generated near the anode 121 can be more effectively carried to the upper side of the anode chamber 120, which is more advantageous for effectively recovering the oxygen generated in the anode chamber 120.
The cross-sectional shapes of the cathode water guide plate 112 and the anode water guide plate 122 may be any shape, and may be the same or different. Preferably, the cathode water guide plate 112 has a cross-sectional shape corresponding to the cross-sectional shape of the cathode 111, and the anode water guide plate 122 has a cross-sectional shape corresponding to the cross-sectional shape of the anode 112. Fig. 4 shows an example in which the sectional shapes of the cathode water guide plate 112 and the anode water guide plate 122 correspond to the sectional shapes of the cathode 111 and the anode 112, respectively.
The heights of the cathode water guide plate 112 and the anode water guide plate 122 may be the same or different. The heights of the cathode water guide plate 112 and the cathode 111 may be the same or different, but it is preferable that the heights of the cathode water guide plate 112 and the cathode 111 are substantially the same. The heights of the anode water guide plate 122 and the anode 121 may be the same or different, but it is preferable that the heights of the anode water guide plate 122 and the anode 121 are substantially the same.
Preferably, the cathode water guide plate 112 corresponds to the cathode 111 in shape, and the anode water guide plate 122 corresponds to the anode 121 in shape. With this configuration, the liquid in the cathode water guide 112 containing the liquid in the cathode 111 can be more favorably refluxed, and the liquid in the anode water guide 122 containing the liquid in the anode 121 can be more favorably refluxed, so that the electrolyte can be more effectively decomposed, and the generated gas can be brought above the cathode chamber 110 and the anode chamber 120, respectively.
Next, a third embodiment of the present invention will be described with reference to fig. 5. In the structure of the water treatment apparatus according to the third embodiment, the same contents as those of the water treatment apparatus according to the second embodiment are omitted.
Fig. 5 is a schematic configuration diagram of a water treatment apparatus according to a third embodiment of the present invention. The water treatment apparatus of the third embodiment is different from the water treatment apparatus of the second embodiment in that it may further include a cathode gas-liquid separation plate 113 and an anode gas-liquid separation plate 123.
As shown in fig. 5, the cathode gas-liquid separation plate 113 is disposed between the cathode 111 in the cathode chamber 110 and the cathode exhaust port 50, and separates the gas-liquid flowing into the cathode exhaust port 50 into liquid and gas. The anode gas-liquid separation plate 123 is provided between the anode 121 and the anode gas outlet 60 in the anode chamber 120, and blocks gas-liquid flowing to the anode gas outlet 60 to separate the gas-liquid into liquid and gas.
In the present embodiment, the shapes of the cathode gas-liquid separation plate 113 and the anode gas-liquid separation plate 123 are not particularly limited, and may be any shape. Preferably, however, the cathode gas-liquid separation plate 113 is disposed between the cathode gas discharge port 50 and the cathode water guide plate 112, and is formed such that the vertical projection thereof covers the vertical projection range of the cathode water guide plate 112; the anode gas-liquid separation plate 123 is disposed between the anode water guide plate 122 and the anode gas outlet 60, and is formed such that a vertical projection thereof covers a vertical projection range of the anode water guide plate 122.
In the cathode chamber 110, the liquid in the cathode water guide plate 112 containing the liquid in the cathode 111 may flow from bottom to top along the cathode water guide plate 112, diffuse around the cathode gas-liquid separation plate 113, and flow from top to bottom along the wall of the cathode chamber 110, whereby the backflow may be better formed. On the other hand, by such a backflow, more electrolyte is guided between the cathode 111 and the anode 121, and more alkaline electrolyzed water can be generated by decomposition to neutralize a low pH value at which phosphate ions and the like are easily dissolved in the bottom region of a reservoir, a lake, a river or the like, so that the pH value can be increased to a near neutral range, thereby suppressing dissolution of phosphate, and inhibiting proliferation of plankton of microcystis, thereby achieving the purpose of water purification. On the other hand, by such a reflux, the hydrogen gas generated in the vicinity of the cathode 111 is better guided to the vicinity of the cathode gas-liquid separation plate 113, moves to the cathode exhaust port 50 along the wall portion of the cathode gas-liquid separation plate 113, and is discharged to the outside through the cathode exhaust port 50, so that it can be recovered and utilized as a fuel for a fuel cell or the like.
Similarly, in the anode chamber 120, the liquid in the anode water guide plate 122 containing the liquid in the anode 121 may flow from bottom to top along the anode water guide plate 122, diffuse around the anode gas-liquid separation plate 123, and flow from top to bottom along the wall of the anode chamber 120, whereby the return flow may be formed better. On the one hand, more electrolyte is guided between the cathode 111 and the anode 121 by the reflux, more acidic electrolyzed water can be generated by decomposition to kill the blue algae, and the acidic electrolyzed water can reduce the pH value, increase the proportion of carbonic acid gas, promote the proliferation of green algae, diatoms and other photosynthetic algae which are competitive algae of the blue algae, further effectively prevent the preferential proliferation of the blue algae, and inhibit the generation of blue algae toxins and blue algae odor substances. On the other hand, by such a backflow, oxygen generated in the vicinity of the anode 121 is better guided to the vicinity of the anode gas-liquid separation plate 123, moves along the wall of the anode gas-liquid separation plate 123 to the anode exhaust port 60, and is exhausted to the outside through the anode exhaust port 60, and specifically, this oxygen can be mixed into the aeration air of the bottom oxygen-depleted water area which is a cause for supplying nutrition to the blue algae by ionizing phosphoric acid or the like in the reducing environment, so that the growth of the blue algae can be better suppressed, and the generation of cyanobacterial toxins and cyanobacterial odor substances can be suppressed.
The cathode gas-liquid separation plate 113 and the anode gas-liquid separation plate 123 may be separate bodies or may be integrally connected to each other, and may be designed as needed.
Next, a fourth embodiment of the present invention will be described with reference to fig. 6. In the structure of the water treatment apparatus according to the fourth embodiment, the same contents as those of the water treatment apparatus according to the third embodiment are omitted.
Fig. 6 is a schematic configuration diagram of a water treatment apparatus according to a fourth embodiment of the present invention. The water treatment apparatus according to the fourth embodiment is different from the water treatment apparatus according to the third embodiment in that a diaphragm 130 may be provided between the cathode chamber 110 and the anode chamber 120.
In the present invention, the cathode chamber 110 and the anode chamber 120 in the electrolytic cell 10 may be connected or disconnected. Fig. 6 shows an example in which a diaphragm 130 is provided between the cathode chamber 110 and the anode chamber 120 in the electrolytic cell 10. The membrane 130 may be a water permeable membrane to exchange only ions, not water, between the cathode chamber 110 and the anode chamber 120.
With this structure, an independent return system can be formed in each of the cathode chamber 110 and the anode chamber 120. Thus, on the one hand, more alkaline electrolyzed water can be electrolytically generated in the cathode chamber 110 for neutralizing a low pH value at which phosphate ions and the like are easily dissolved in the bottom area of a reservoir, lake, river or the like; on the other hand, hydrogen gas generated in the vicinity of the cathode 111 can be recovered more favorably. Also, on the one hand, more acidic electrolyzed water can be electrolyzed in the anode chamber 120 to kill the blue algae; on the other hand, oxygen generated near the anode 121 can be recovered better.
To better explain the effects of the present invention, the utility model of the present application purifies the polluted river in the Wenzhou city using the water treatment apparatus according to the fourth embodiment of the present invention.
First, water from a contaminated river in Wenzhou city was put into a 500-ml beaker, and a device was installed in the beaker to monitor the change before and after the treatment. The apparatus used a KPS-3005D charging apparatus manufactured by McXin corporation, 3 cm square titanium electrodes were used for both electrodes, the distance between the two electrodes was set to 5 cm, and a 2 mm pressure fiber water flow membrane was used in the middle of the electrodes. The electrodes are made into a positive electrode and a negative electrode, and are divided into treated water regions on the sides. The overvoltage was treated at 20V and 0.14A.
Then, the oxygen generated in the present experiment was mixed into the aerated air at 25 ℃, and the test results before and after mixing of the oxygen generated in the above experiment were measured. In the experiment, the aeration rate was 1L/min, and the water amount was 10L. Table 1 shows the oxygen content in water in mg/L after aeration for 0, 5 and 10 minutes.
[ Table 1]
To demonstrate the blue algae inhibiting effect of the technology of the present application, 10L of water was mixed with blue algae, green algae and diatoms, and 30 minutes of the acidic electrolyzed water produced in the present application was added to the water surface at a flow rate of 1 mL/min. The addition was made once daily. The proportion of each algae was compared after 5 days. At this time, the culture conditions of the blue algae, green algae and diatom are 3000Lux 24hr at 20 ℃. Table 2 shows the experimental results.
[ Table 2]
The above tables 1 and 2 show that the water treatment apparatus of the present invention can sufficiently electrolyze the electrolyte component in the raw water to produce acidic electrolyzed water and alkaline electrolyzed water, and the produced acidic electrolyzed water can not only kill blue-green algae without destroying the cell wall but also effectively inhibit the growth of blue-green algae. Furthermore, the water treatment apparatus can decompose water molecules into hydrogen gas and oxygen gas, the hydrogen gas can be recycled as a raw material, and the oxygen gas can be mixed into the aeration air of the bottom oxygen-poor water area which causes the phosphorus acid and the like to be ionized under the reducing environment and to provide nutrition to the blue algae, so that the oxygen gas can be effectively supplied to better inhibit the growth of the blue algae compared with the conventional aeration technology.
In the first to fourth embodiments described above, the cathode 111 and the anode 121 may have a multilayer structure in which a surface is coated with a conductive material, or a single-layer structure composed of a conductive material, the conductive material being at least one of graphite, superconducting carbon, acetylene black, carbon black, ketjen black, carbon dots, carbon nanotubes, graphene, carbon nanometers, titanium, zinc, tin, lithium, silver, palladium, platinum, and gold.
In addition, in the first to fourth embodiments described above, a pH sensor may be further provided in at least one of the cathode chamber 110 and the anode chamber 120. A pH threshold value of alkalinity and/or acidity of the cathode chamber 110 and/or the anode chamber 120 may be previously set, and when the pH value of the cathode chamber 110 and/or the anode chamber 120 exceeds the threshold value, the electrolyzed water is discharged to the outside.
Further, in the first to fourth embodiments described above, a water level sensor may be further provided in at least one of the cathode chamber 110 and the anode chamber 120. By providing the water level sensor, it is possible to monitor not only the water level of the cathode chamber 110 and/or the anode chamber 120 but also whether or not the liquid in the cathode chamber 110 and/or the anode chamber 120 flows over the cathode gas-liquid separation plate 113 and/or the anode gas-liquid separation plate 123, thereby affecting the effect of the gas-liquid separation plate.
It should be noted that, in the above description of the present invention, an electrolytic cell having a cathode chamber and an anode chamber is exemplified, but it is possible to have an electrolytic cell having a plurality of cathode chambers and an anode chamber, to have an electrolytic cell having a cathode chamber and a plurality of anode chambers, or to have an electrolytic cell having a plurality of cathode chambers and a plurality of anode chambers.
In the description of the present invention, one electrolytic cell is exemplified, but a plurality of electrolytic cells may be connected in parallel, in series, in a combination of parallel and series to more efficiently perform electrolysis of electrolyte components and water molecules.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "rear", "up-down", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention is not limited to the above-described embodiments, and can be modified as appropriate without departing from the scope of the utility model. The above embodiments include substantially the same embodiments, and may be combined as appropriate. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Claims (11)
1. A water treatment apparatus, characterized in that the water treatment apparatus comprises:
the electrolytic cell comprises a cathode chamber and an anode chamber, wherein a cathode is arranged in the cathode chamber, and an anode is arranged in the anode chamber;
a raw water introduction unit connected to the cathode chamber and the anode chamber, respectively, for introducing raw water into the cathode chamber and the anode chamber;
an alkaline electrolyzed water discharge unit connected to the cathode chamber for discharging alkaline electrolyzed water;
an acidic electrolyzed water discharge portion connected to the anode chamber for discharging acidic electrolyzed water,
a cathode exhaust port provided at an upper portion of the cathode chamber for exhausting gas generated in the cathode chamber; and
an anode exhaust port provided at an upper portion of the anode chamber for exhausting gas generated in the anode chamber,
wherein the cathode and the anode are each formed in a hollow cylindrical shape.
2. The water treatment device of claim 1, further comprising:
a cathode water guide plate disposed in the cathode chamber, formed to surround the hollow cylindrical cathode, and configured to allow liquid in the cathode chamber to flow back up and down along the cathode water guide plate; and
and the anode water guide plate is arranged in the anode chamber, is formed to surround the hollow cylindrical anode and is used for enabling the liquid in the anode chamber to flow back up and down along the anode water guide plate.
3. The water treatment device of claim 1, further comprising:
a cathode gas-liquid separation plate disposed between the cathode and the cathode exhaust port in the cathode chamber, for blocking gas-liquid flowing to the cathode exhaust port and separating the gas-liquid into liquid and gas; and
and an anode gas-liquid separation plate disposed between the anode and the anode exhaust port in the anode chamber, for blocking gas-liquid flowing to the anode exhaust port and separating the gas-liquid into liquid and gas.
4. The water treatment device of claim 2, further comprising:
a cathode gas-liquid separation plate disposed between the cathode and the cathode exhaust port in the cathode chamber, for blocking gas-liquid flowing to the cathode exhaust port and separating the gas-liquid into liquid and gas; and
and an anode gas-liquid separation plate disposed between the anode and the anode exhaust port in the anode chamber, for blocking gas-liquid flowing to the anode exhaust port and separating the gas-liquid into liquid and gas.
5. The water treatment apparatus as recited in claim 4,
the cathode gas-liquid separation plate is arranged between the upper part of the cathode water guide plate and the cathode exhaust port and forms a vertical projection covering the vertical projection range of the cathode water guide plate,
the anode gas-liquid separation plate is arranged between the upper part of the anode water guide plate and the anode exhaust port and forms a vertical projection covering the vertical projection range of the anode water guide plate.
6. The water treatment apparatus as claimed in claim 3 or 4,
the cathode gas-liquid separation plate and the anode gas-liquid separation plate are in a split shape or an integrated shape connected with each other.
7. The water treatment apparatus according to claim 1 or 2,
the cross-sectional shapes of the cathode and the anode are circular, elliptical or polygonal.
8. The water treatment apparatus as recited in claim 2,
the shape of the cathode water guide plate corresponds to that of the cathode, and the shape of the anode water guide plate corresponds to that of the anode.
9. The water treatment apparatus according to claim 1 or 2,
within the cell, a diaphragm is disposed between the cathode and anode chambers, the diaphragm allowing ions to flow between the cathode and anode chambers and not water molecules to flow between the cathode and anode chambers.
10. The water treatment apparatus according to claim 1 or 2,
the cathode and the anode have a multilayer structure with a conductive material coated on the surface thereof or a single-layer structure composed of a conductive material,
the conductive material is at least one of graphite, superconducting carbon, acetylene black, carbon black, ketjen black, carbon dots, carbon nanotubes, graphene, carbon nano-particles, titanium, zinc, tin, lithium, silver, palladium, platinum and gold.
11. The water treatment apparatus according to claim 1 or 2,
the raw water is a liquid containing at least one of blue algae, blue algae toxin and blue algae peculiar smell substances.
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