CN212198715U - Metal wastewater treatment device - Google Patents
Metal wastewater treatment device Download PDFInfo
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- CN212198715U CN212198715U CN202020686409.4U CN202020686409U CN212198715U CN 212198715 U CN212198715 U CN 212198715U CN 202020686409 U CN202020686409 U CN 202020686409U CN 212198715 U CN212198715 U CN 212198715U
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Abstract
The utility model discloses a metal wastewater treatment device relates to heavy metal pollution waste water treatment field. The device includes: the device comprises a power supply, a shell, a carbon rod, a filling area and aquatic plants, wherein the carbon rod, the filling area and the aquatic plants are positioned in the shell; the carbon rod is positioned at the edge of the shell; the filler area is used for placing fillers and fillers; aquatic plants are planted in the filling area; the carbon rod is connected with a power supply. The utility model discloses plant aquatic plant in metal waste water treatment device, become metal waste water treatment device into constructed wetland, be connected for the carbon-point circular telegram through the carbon-point with the power, combine together constructed wetland and electrolytic method, absorb constructed wetland and electrolytic method advantage of getting rid of pollutant waste water separately, the treatment effeciency that has improved chromium-containing waste water, effectively solve constructed wetland and handle the unsatisfactory scheduling problem of high concentration chromium-containing waste water effect, simultaneously through external power supply for constructed wetland lasts, the efficient operation provides the guarantee.
Description
Technical Field
The utility model relates to a heavy metal pollution waste water treatment field especially relates to a metal waste water treatment device.
Background
The problem of chromium pollution is now very severe, and hexavalent chromium is considered to be a very harmful environmental pollutant. The artificial wetland has the advantages of low cost, high efficiency and the like, is widely applied to the treatment of heavy metal wastewater, but the artificial wetland also has the defects of not ideal effect on treating high-concentration chromium wastewater, unstable treatment effect after long-term operation and the like. Therefore, the prior constructed wetland for treating the high-concentration chromium-containing wastewater has the problem of low treatment efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a metal wastewater treatment device has solved the problem that current constructed wetland handles high concentration chromium-containing wastewater treatment efficiency is low.
In order to achieve the above object, the utility model provides a following scheme:
a metal wastewater treatment apparatus comprising: the device comprises a power supply, a shell, a carbon rod, a filling area and aquatic plants, wherein the carbon rod, the filling area and the aquatic plants are positioned in the shell;
the carbon rod is positioned at the edge position of the shell;
the filler area is used for placing fillers and fillers;
the aquatic plants are planted in the filling area;
the carbon rod is connected with the power supply.
Optionally, the carbon rods comprise a first carbon rod and a second carbon rod;
the first carbon rod and the second carbon rod are respectively positioned at two opposite ends of the shell.
Optionally, the power supply is a direct current power supply;
the first carbon rod is connected with the positive pole of the direct current power supply, and the second carbon rod is connected with the negative pole of the direct current power supply.
Optionally, the filler in the filler area is crushed stone.
Optionally, the filler in the filler region is a conductive filler.
Optionally, the aquatic plants include canna, calamus, pinus gracilis, and leersia hexandra.
Optionally, the housing includes: a water inlet, an on-way sampling port and a water outlet;
the water inlet is arranged at the lower part of the shell and is used for introducing the metal wastewater into the metal wastewater treatment device;
the on-way sampling port is arranged on the shell at a position corresponding to the filling area and is used for obtaining liquid in the metal wastewater treatment device;
the water outlet is arranged at the upper part of the shell and used for leading out liquid in the metal wastewater treatment device.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect: the utility model provides a metal wastewater treatment device. The device includes: the device comprises a power supply, a shell, a carbon rod, a filling area and aquatic plants, wherein the carbon rod, the filling area and the aquatic plants are positioned in the shell; the carbon rod is positioned at the edge of the shell; the filler area is used for placing fillers and fillers; aquatic plants are planted in the filling area; the carbon rod is connected with a power supply. The utility model discloses plant aquatic plant in metal waste water treatment device, become metal waste water treatment device into constructed wetland, be connected for the carbon-point circular telegram through the carbon-point with the power, combine together constructed wetland and electrolytic method, absorb constructed wetland and electrolytic method advantage of getting rid of pollutant waste water separately, the treatment effeciency of high concentration chromium-containing waste water has been improved, effectively solve constructed wetland and handle the unsatisfactory scheduling problem of high concentration chromium-containing waste water effect, it lasts for constructed wetland through external power supply simultaneously, the efficient operation provides the guarantee, and has convenient operation, green economy, and advantages such as recoverable energy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a view showing a construction of a metal wastewater treatment apparatus according to an embodiment of the present invention.
Description of the symbols: 1. an on-way sampling port; 2. a filler; 3. an aquatic plant; 4. monitoring the electrode rod; 5. a second carbon rod; 6. a copper wire; 7. a ring-shaped copper electrode; 8. a direct current power supply; 9. a filler; 10. a water inlet; 11. and (7) a water outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a metal wastewater treatment device has solved the problem that current constructed wetland handles high concentration chromium-containing wastewater treatment efficiency is low.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
This embodiment provides a metal waste water treatment device, and figure 1 is the structure diagram of the metal waste water treatment device of the embodiment of the utility model. Referring to fig. 1, the metal wastewater treatment apparatus includes: a power source, a housing (not shown in the figures) and a carbon rod, a filler zone and aquatic plants 3 located inside the housing.
The housing is made of Polyvinyl chloride (PVC). The housing was cylindrical in shape, with a height of 1.2 meters (m) and a diameter of 0.3 m.
The carbon rod is positioned at the edge of the shell. The carbon rod is a cylindrical carbon rod with the height of 1.2m and the diameter of 0.03 m.
The carbon rods include a first carbon rod and a second carbon rod 5. The first and second carbon rods 5 are located at opposite ends of the housing, respectively.
The filler area is used for placing filler 9 and filler 2. The filler 9 is positioned at the bottom of the shell, the filler 9 is crushed stone, the filler 2 is positioned on the filler 9, the filler 2 is conductive filler, and preferably, the filler 2 is coke. The filler 9 fills the part 0 cm-20 cm away from the bottom of the shell, the filler 2 fills the part 20cm-80cm away from the bottom of the shell, and the height of the filler area is 100 cm.
The carbon rod is connected with a power supply. The carbon rod is connected with a power supply through a copper wire 6, and the power supply is a direct current power supply 8. The first carbon rod is connected with the positive pole of the direct current power supply 8, and the second carbon rod 5 is connected with the negative pole of the direct current power supply 8.
The direct current power supply 8 is used as a power supply body, the first carbon rod and the second carbon rod 5 are used as positive and negative electrodes, and liquid in the metal wastewater treatment device transfers current to form a current loop.
The housing includes: water inlet 10, sampling port 1 and water outlet 11.
The water inlet 10 is arranged at the lower part of the shell, and the water inlet 10 is used for introducing the metal wastewater into the metal wastewater treatment device. In the embodiment, the metal wastewater is high-concentration chromium-containing wastewater, and the chromium concentration of the high-concentration chromium-containing wastewater is more than or equal to 35mg/L (milligram per liter).
The on-way sampling port 1 is arranged at a position, corresponding to the filling area, on the shell, and the on-way sampling port 1 is used for obtaining liquid in the metal wastewater treatment device, and is specifically used for obtaining liquid in the metal wastewater treatment device before and after electrification in each electrification period. The number of the sampling ports 1 is plural, and in the present embodiment, there are three sampling ports.
The water outlet 11 is arranged at the upper part of the shell, and the water outlet 11 is used for leading out liquid in the metal wastewater treatment device.
This metal waste water treatment facilities still includes: a copper electrode and a monitoring electrode rod 4 fixed in the housing.
The monitoring electrode rod 4 is fixed in the central area of the metal wastewater treatment device, and the copper electrode is arranged on the monitoring electrode rod 4. The monitoring electrode rod 4 is used for monitoring the metal wastewater treatment device.
The copper electrodes are annular copper electrodes 7, a plurality of annular copper electrodes 7 are mounted on each monitoring electrode rod 4, preferably 18 annular copper electrodes 7 can be mounted, the copper electrodes are annularly and parallelly fixed on the monitoring electrode rods 4, and the distance between every two adjacent annular copper electrodes 7 is 5 cm.
The monitoring electrode rod 4 is hollow, each annular copper electrode 7 is connected with a copper wire, and the copper wires extend out of the monitoring electrode rod 4. The copper wire connected with the annular copper electrode 7 is used for connecting other testing devices, and the monitoring electrode rod 4 is specifically used for monitoring the distribution condition of an electric field in the metal wastewater treatment device at the later stage.
The metal wastewater treatment apparatus of this example was filled with crushed stones, fillers and aquatic plants, and then, about 40L of chromium-containing wastewater was poured into the apparatus, and the fillers were kept submerged in the chromium-containing wastewater, and the distance from the horizontal surface of the chromium-containing wastewater to the bottom of the interior of the housing was 1 m.
The embodiment also provides a use flow of the metal wastewater treatment device, which comprises the following steps:
a carbon rod is placed inside the housing.
Filling the filler and the filler in the filler area. The filler is filled in a part which is 0 centimeter (cm) -20cm away from the bottom of the shell, the filler is filled in a part which is 20cm-80cm away from the bottom of the shell, and the height of the filler area is 100 cm.
And planting aquatic plants in the filling area, and particularly planting the aquatic plants on the filling.
The carbon rod is connected with a power supply. The carbon rod is connected with a direct current power supply through a copper wire.
Introducing the domestic sewage into a metal wastewater treatment device. Domestic sewage is led into the metal wastewater treatment device through a water inlet at the lower part of the shell, and the filler is always kept in a sewage saturation state, namely the domestic sewage is kept in a state of submerging the filler.
And when the time for introducing the domestic sewage into the metal wastewater treatment device reaches the preset time, introducing the metal wastewater into the metal wastewater treatment device.
And adjusting the current of the power supply according to the metal concentration of the metal wastewater, turning on the power supply, electrifying the carbon rod, and treating the metal wastewater. And when the power supply is turned on, a current loop is formed between the carbon rod and the power supply, and the current input to the metal wastewater treatment device is controlled by changing the current of the direct-current power supply according to the chromium concentration of the chromium wastewater.
The embodiment also provides a process for specifically treating chromium-containing wastewater by using the metal wastewater treatment device, which comprises the following steps: the planted aquatic plant is Leersia hexandra Swartz, domestic sewage is introduced into the metal wastewater treatment device, the hexavalent chromium-containing wastewater is introduced after the aquatic plant grows for 30 days, the initial chromium concentration of the wastewater is 5mg/L (milligram per liter), and the chromium concentration of the wastewater is gradually increased. The metal wastewater treatment device is electrified for 24 hours every day, three days are taken as a period, the metal wastewater treatment device continuously runs for 30 days, and the change condition of the chromium concentration of the wastewater before and after the metal wastewater treatment device is electrified is measured in each period. In practical application, different current magnitudes can be used for treating the chromium-containing wastewater with the same chromium concentration, the heavy metal removal effect of the metal wastewater treatment device is judged by measuring the change condition of the chromium concentration of the wastewater in each period, and the current magnitude with the best removal effect of the metal wastewater treatment device for treating the chromium-containing wastewater with different chromium concentrations is determined.
The utility model plants aquatic plants in the metal wastewater treatment device, changes the metal wastewater treatment device into the artificial wetland, and uses the external direct current power supply to electrify the carbon rod, combines the artificial wetland and the electrolysis method, absorbs the advantages of removing pollutant wastewater by the artificial wetland and the electrolysis method respectively, changes the chemical form of pollutants by the electrolysis of the electrode system consisting of the carbon rod and the power supply, and removes the pollutants by the actions of oxidation reduction, electric flocculation, electrodeposition and the like; the electric field generated by the electrode system is utilized to induce plants, activate microorganisms and migrate pollutants, so that the migration and transformation rates of the pollutants are accelerated, the biotransformation capacity is enhanced, and the removal of the pollutants is promoted. The utility model combines the artificial wetland and the electrolysis method, absorbs the advantages of the artificial wetland and the electrolysis method for removing pollutant wastewater respectively, improves the treatment efficiency of the chromium-containing wastewater, and effectively solves the problem that the artificial wetland has unsatisfactory effect on treating the high-concentration chromium-containing wastewater; through the external power supply, the problem of unstable effect of treating chromium-containing wastewater by the artificial wetland in long-term operation is effectively solved, the continuous and efficient operation of the artificial wetland is guaranteed, and the method has the advantages of convenience in operation, environmental friendliness, economy, energy recovery and the like.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (7)
1. A metal wastewater treatment apparatus, comprising: the device comprises a power supply, a shell, a carbon rod, a filling area and aquatic plants, wherein the carbon rod, the filling area and the aquatic plants are positioned in the shell;
the carbon rod is positioned at the edge position of the shell;
the filler area is used for placing fillers and fillers;
the aquatic plants are planted in the filling area;
the carbon rod is connected with the power supply;
the metal wastewater treatment device further comprises: the copper electrode and a monitoring electrode rod are fixed in the shell;
the monitoring electrode rod is fixed in the central area of the metal wastewater treatment device, and the copper electrode is arranged on the monitoring electrode rod;
the copper electrodes are annular copper electrodes, a plurality of annular copper electrodes are mounted on each monitoring electrode rod, the copper electrodes are annularly and parallelly fixed on the monitoring electrode rods, and the distance between every two adjacent annular copper electrodes is 5 cm;
the monitoring electrode rod is hollow, each annular copper electrode is connected with a copper wire, and the copper wires extend out of the monitoring electrode rod.
2. The metallic wastewater treatment apparatus according to claim 1, wherein the carbon rod includes a first carbon rod and a second carbon rod;
the first carbon rod and the second carbon rod are respectively positioned at two opposite ends of the shell.
3. The metal wastewater treatment apparatus according to claim 2, wherein the power supply is a direct current power supply;
the first carbon rod is connected with the positive pole of the direct current power supply, and the second carbon rod is connected with the negative pole of the direct current power supply.
4. The metal wastewater treatment apparatus according to claim 1, wherein the filler of the filler zone is crushed stone.
5. The metal wastewater treatment apparatus according to claim 1, wherein the filler of the filler zone is an electrically conductive filler.
6. The metal wastewater treatment apparatus according to claim 1, wherein the aquatic plant includes canna, calamus, pinus gracilis, and leersia hexandra.
7. The metallic wastewater treatment apparatus according to claim 1, wherein the housing includes: a water inlet, an on-way sampling port and a water outlet;
the water inlet is arranged at the lower part of the shell and is used for introducing the metal wastewater into the metal wastewater treatment device;
the on-way sampling port is arranged on the shell at a position corresponding to the filling area and is used for obtaining liquid in the metal wastewater treatment device;
the water outlet is arranged at the upper part of the shell and used for leading out liquid in the metal wastewater treatment device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020686409.4U CN212198715U (en) | 2020-04-29 | 2020-04-29 | Metal wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020686409.4U CN212198715U (en) | 2020-04-29 | 2020-04-29 | Metal wastewater treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212198715U true CN212198715U (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020686409.4U Active CN212198715U (en) | 2020-04-29 | 2020-04-29 | Metal wastewater treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212198715U (en) |
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2020
- 2020-04-29 CN CN202020686409.4U patent/CN212198715U/en active Active
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