Water body heavy metal pollution cyclic remediation equipment

Abstract

The utility model relates to a kind of water body heavy metal pollution cyclic repair equipment, its structure is: three purification columns are positioned in the shell inner cavity circumference, heavy metal chelate particles are equipped in purification column;Water tank is connected at the lower end of shell, three water tanks of upper open are distributed in the circumference in water tank, the top of water tank corresponds with the position of purification column, the top of water tank is connected inlet pipe, extends water tank, pipe end portion has butterfly valve, the bottom of water tank is connected outlet pipe, extends water tank, pipe end portion has three-way valve;Positioning plate is connected at the upper end of shell, three water circulation pumps are peripherally arranged in positioning plate, the water inlet of water circulation pump upper end is communicated with the inner cavity of corresponding water tank by outlet pipe, the water outlet position of water circulation pump lower end corresponds with the upper end opening position of purification column. The repair equipment can repair heavy metal pollution water body by the purification column filled with adsorption material, and through water circulation system, improve water body repair efficiency, realize heavy metal recovery and the reuse of adsorption material.

Description

Technical Field

[0001] This utility model relates to a water heavy metal pollution recycling and remediation device, belonging to the technical field of water pollution treatment equipment. Background Technology

[0002] Heavy metal wastewater mainly originates from industries such as metallurgy, electroplating, mining, and chemicals, including mine drainage, leaching water from waste rock dumps, tailings drainage from ore dressing plants, wastewater from non-ferrous metal smelters, pickling water from non-ferrous metal processing plants, washing water from electroplating plants, pickling wastewater from steel plants, as well as industrial wastewater from electrolysis, pesticides, pharmaceuticals, paints, and pigments. The types, concentrations, and forms of heavy metal ions in these wastewaters vary significantly depending on the type of production. With the continuous increase in human activities related to the mining, smelting, and processing of heavy metals, the quantity and types of heavy metal wastewater have increased significantly, leading to large amounts of heavy metals entering lakes, rivers, and other water bodies, causing serious heavy metal pollution problems.

[0003] Current methods for treating heavy metal pollution in water include physical adsorption, chemical precipitation, electrolysis, and phytoremediation. However, these methods all have some drawbacks, such as incomplete remediation, unstable remediation compounds leading to the re-release of heavy metals, and secondary pollution. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a water heavy metal pollution recycling and remediation device. This remediation device can adsorb heavy metals from polluted water through a purification column filled with adsorption material, enrich the heavy metals in the purification column, and improve the water remediation efficiency through a water circulation system. It can also utilize the characteristics of the adsorption material to achieve the recovery of heavy metals and the reuse of the adsorption material after acid washing and water washing of the purification column.

[0005] To solve the above problems, the specific technical solution of this utility model is as follows: A water heavy metal pollution recycling and remediation device, comprising three purification columns positioned circumferentially within the inner cavity of the outer shell, the surface of the purification columns being an organic polymer membrane, and heavy metal chelating particles being disposed within the purification columns; a water tank is connected to the lower end of the outer shell, and three water tanks with open tops are distributed circumferentially within the water tank, the tops of the water tanks corresponding to the positions of the purification columns, the tops of the water tanks being connected to inlet pipes, the ends of the inlet pipes extending out of the water tank and connected to butterfly valves, and the bottoms of the water tanks being connected to outlet pipes, the ends of the outlet pipes extending out of the water tank and connected to three-way valves; a positioning plate is connected to the upper end of the outer shell, and three water circulation pumps are arranged circumferentially on the positioning plate, the inlets at the upper ends of the water circulation pumps being connected to the corresponding three-way valves via flexible hoses, and the outlets at the lower ends of the water circulation pumps corresponding to the openings at the upper ends of the purification columns.

[0006] The water tank has a central column at the top center, a rotating plate on the central column, and a rotation drive motor on the rotating plate. The small gear connected to the output end of the rotation drive motor meshes with the large gear on the central column, causing the rotating plate to rotate 120°, 240° or 360°.

[0007] The positioning plate is symmetrically equipped with miniature hydraulic push rods, and the movable part of the miniature hydraulic push rod is connected to the top of the outer shell.

[0008] The organic polymer membrane on the outer surface of the purification column is a polytetrafluoroethylene membrane.

[0009] The top of the water tank is provided with a circular recess, and the bottom of the purification column is inserted into the circular recess.

[0010] When the butterfly valve is opened, the liquid medium enters the water tank through the valve.

[0011] The three-way valve has an inlet, a circulation outlet, and a drain outlet. When the valve is open, the liquid medium in the water tank enters the valve through the inlet and flows out of the valve through the circulation outlet, and is connected to the water inlet at the top of the water circulation pump through a hose. When the valve core reverses, the liquid medium in the water tank enters the valve through the inlet and flows out of the valve through the drain outlet. When the valve is closed, the liquid medium in the water tank cannot flow out.

[0012] The heavy metal chelating particles in the purification column are macroporous adsorption resin particles and membrane material matrix with natural and synthetic heavy metal ion chelating agents fixed thereon, which chelate and adsorb metal elements in the water.

[0013] The water heavy metal pollution recycling remediation device of this application adopts the above structure, which can effectively improve the efficiency of heavy metal pollution treatment, realize the recycling of heavy metals and the reuse of adsorption materials, and achieve the effect of efficient and green treatment of heavy metal pollution. Attached Figure Description

[0014] Figure 1 This is a rendering of the appearance of this application.

[0015] Figure 2 This is the AA sectional view of this application.

[0016] Figure 3 This is a top view of the water tank.

[0017] Figure 4 This is a schematic diagram of the water cycle in this application. Detailed Implementation

[0018] like Figures 1 to 4As shown, a water heavy metal pollution recycling and remediation device includes a positioning plate 2 connected to the upper end of the outer shell 4. Three water circulation pumps 1 are arranged circumferentially around the positioning plate 2, with the water outlet at the lower end of each pump corresponding to the opening at the upper end of a purification column 5. Three purification columns 5 are positioned circumferentially within the inner cavity of the outer shell 4. The surface of each purification column 5 is a polytetrafluoroethylene (PTFE) organic polymer membrane, and heavy metal chelating particles are placed inside. A water tank 9 is connected to the lower end of the outer shell 4. Three water tanks 10 with openings at the top are distributed circumferentially within the water tank 9. The inner cavity of each water tank 10 is shaped like an inverted frustum. The top of each water tank 10 corresponds to the position of a purification column 5. An inlet pipe is connected to the top of each water tank 10, with its end extending out of the water tank 9 and connected to a butterfly valve 11. An outlet pipe is connected to the bottom of each water tank 10, with its end extending out of the water tank 9 and connected to a three-way valve 12.

[0019] The water tank 9 has a central column 8 at its top center, a rotating plate 6 on the central column 8, and a rotation drive motor 7 on the rotating plate 6. The small gear connected to the output end of the rotation drive motor 7 meshes with the large gear on the central column 8, causing the rotating plate 6 to rotate 120°, 240°, or 360°. The water in the water tank 10 can be purified by different purification columns 5 through the rotated rotating plate 6 to complete different processes.

[0020] The positioning plate 2 is symmetrically equipped with miniature hydraulic push rods 3, and the movable part of the miniature hydraulic push rod 3 is connected to the top of the outer shell 4. When the miniature hydraulic push rod 3 is activated, the height of the water circulation pump 1 is adjusted via the positioning plate 2.

[0021] like Figure 3 As shown, the top of the water tank 9 has a circular recess, and the bottom of the purification column 5 is inserted into the circular recess. This ensures that the purification column 5 rotates smoothly, and the water falling into the circular recess slides into the water tank 10.

[0022] like Figure 4 As shown, the three-way valve 12 has an inlet 12-1, a circulation outlet 12-2, and a drain outlet 12-3. When the valve is open, the liquid medium in the water tank 10 enters the valve from the inlet 12-1 and flows out of the valve from the circulation outlet 12-2, and is connected to the water inlet at the upper end of the water circulation pump 1 through a hose. When the valve core reverses, the liquid medium in the water tank 10 enters the valve from the inlet 12-1 and flows out of the valve from the drain outlet 12-3. When the valve is closed, the liquid medium in the water tank 10 cannot flow out.

[0023] The heavy metal chelating particles in the purification column 5 consist of macroporous adsorption resin particles and a membrane material matrix immobilized with natural and synthetic heavy metal ion chelating agents, which chelate and adsorb metal elements in the water. The heavy metal ion chelating agents include: Yersiniabactin (Ybt) and its derivatives, Enterobactin (MGE) and its derivatives, deferoxamine B (DFOB) and its derivatives, deferoxamine (DFO) and its derivatives, mycobactin (MBT) and its derivatives, methanobactin (Mb) and its derivatives, aerobactin and its derivatives, mycobactin S and its derivatives, and Exochelin-MS (Exo-MS). EDTA and its derivatives, diethyltriaminepentaacetic acid (DTPA) and its derivatives, 6-hydrazinenicotinic acid (HYNIC) and its derivatives, 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracarboxylic acid (DOTA) and its derivatives, and EDDS and its derivatives. Example 1

[0024] The water circulation pump 1 and the movable plate 2 are rigidly connected and are perpendicular to the three purification columns 5 respectively. Open the butterfly valve 11 to fill the three inverted frustum-shaped water tanks 10 in the water tank 9 with an appropriate amount of sewage.

[0025] Open the three-way valve 12 and connect the inlet 12-1 of the three-way valve 12 to the inlet of the water circulation pump 1 using an external water pipe. Each water circulation pump 1 allows sewage to flow sequentially from the water tank 9 into the water circulation pump 1, and after flowing out of the water circulation pump 1, it enters the purification column 5 and flows back to the water tank 9. There are three purification columns 5, each forming an independent water circulation system, which can achieve multiple cycles through the water circulation pump 1, greatly improving the water pollution treatment effect. After the circulation is completed, adjust the valve core of the three-way valve 12 to reverse the direction, and let the treated water flow out of the water tank 10 through the drain outlet 12-3. Example 2

[0026] The rotary drive motor 7 drives the rotating plate 6 to rotate around the central column 8 at angles of 120°, 240°, and 360°, allowing for three rotations. To prevent collisions between the purification column 5 and the water circulation pump 1 during rotation, the micro hydraulic push rod 3 is activated before each rotation of the rotating plate 6 to push the positioning plate 2 and raise the height of the water circulation pump 1. After each rotation, the water circulation pump 1, purification column 5, and water tank 10 are vertically aligned, thus enabling the purification column 5 to be sequentially connected to the three water circulation systems by rotating the rotating plate 6. After completing the rotation, the micro hydraulic push rod 3 is retracted, and the water circulation pump 1 is adjusted back to its normal height.

[0027] Open butterfly valve 11 and fill the three inverted frustum-shaped water tanks 10 in water tank 9 with appropriate amounts of sewage, hydrochloric acid solution of a certain concentration, and clean water, respectively. Open three-way valve 12 and connect the inlet 12-1 of the three-way valve to the inlet of water circulation pump 1 using an external water pipe to establish sewage circulation, acid circulation, and clean water circulation, respectively. The purification columns 5 are filled with large-pore adsorption resin particles containing natural and synthetic heavy metal ion chelating agents. There are three purification columns 5, which in this embodiment are named first purification column 5-1, second purification column 5-2, and third purification column 5-3, respectively. The specific implementation process is shown in Table 1.

[0028] When the rotating plate 6 is in its initial position, the first purification column 5-1 is connected to the wastewater circulation system to adsorb heavy metal pollutants in the water and concentrate the heavy metals in the purification column 5. The second purification column 5-2 and the third purification column 5-3 are not connected to the water circulation system at this time.

[0029] After a period of time, the rotating plate is rotated 6120°, connecting the first purification column 5-1 to the acid circulation system. Heavy metals are eluted from the first purification column 5-1 using hydrochloric acid, accumulating them in the hydrochloric acid solution. After long-term accumulation, the heavy metals are reused by recovering the acid. Simultaneously, the second purification column 5-2 is connected to the wastewater circulation system to adsorb heavy metal pollutants from the water. The third purification column 5-3 is not connected to the water circulation system at this time.

[0030] After a period of time, the rotating plate is rotated 6240°, and the first purification column 5-1 is connected to the clean water circulation system. The residual acid in the purification column 5 is rinsed out with clean water, restoring the adsorption capacity of the large-pore adsorption resin particles with natural and synthetic heavy metal ion chelating agents. At the same time, the second purification column 5-2 is connected to the acid circulation system, and the heavy metals are eluted from the first purification column 5-1 with hydrochloric acid water. The third purification column 5-3 is connected to the sewage circulation system to adsorb heavy metal polluted water.

[0031] After a period of time, the rotating plate can be rotated 6360° or returned to its original position. The first purification column 5-1 can then be connected to the wastewater circulation system to start a new round of adsorption, or it can be disconnected from the water circulation system. At the same time, the second purification column 5-2 is connected to the clean water circulation system to flush out the residual acid in the second purification column 5-2, and the third purification column 5-3 is connected to the acid circulation system to elute heavy metals from the third purification column 5-3 with hydrochloric acid.

[0032] After a period of time, rotating the rotating plate 6480° allows the second purification column 5-2 to be connected to the wastewater circulation system to start a new round of adsorption, or it can be disconnected from the water circulation system. Simultaneously, the third purification column 5-3 is connected to the clean water circulation system to flush out any residual acid. After another period of time, rotating the rotating plate 6600° allows the third purification column 5-3 to be connected to the wastewater circulation system to start a new round of adsorption, or it can be disconnected from the water circulation system.

[0033] After the circulation is completed, adjust the valve core of the three-way valve 12 to reverse the direction, and let the repaired water flow out from the water tank 10 through the drain outlet 12-3.

[0034] Implementing this example can quickly enable the reuse of adsorbent materials, further reducing costs and shortening treatment time.

[0035] .

Claims

1. A water heavy metal pollution recycling remediation device, characterized in that: Three purification columns (5) are positioned around the inner cavity of the outer shell (4). The surface of the purification column (5) is an organic polymer membrane, and heavy metal chelating particles are provided inside the purification column (5). A water tank (9) is connected to the lower end of the outer shell (4). Three water tanks (10) with openings at the top are distributed around the inner circumference of the water tank (9). The top of the water tank (10) corresponds to the position of the purification column (5). The top of the water tank (10) is connected to the water inlet pipe. The end of the water inlet pipe extends out of the water tank (9) and is connected to the butterfly valve (11). The bottom of the water tank (10) is connected to the water outlet pipe. The end of the water outlet pipe extends out of the water tank (9) and is connected to the three-way valve (12). A positioning plate (2) is connected to the upper end of the outer shell (4). Three water circulation pumps (1) are set around the circumference of the positioning plate (2). The water inlet at the upper end of the water circulation pump (1) is connected to the three-way valve (12) at the corresponding position through a hose. The water outlet at the lower end of the water circulation pump (1) corresponds to the opening position at the upper end of the purification column (5).

2. The water heavy metal pollution recycling remediation equipment according to claim 1, characterized in that: The water tank (9) has a central column (8) at the top center, a rotating plate (6) on the central column (8), a rotating drive motor (7) on the rotating plate (6), and a small gear connected to the output end of the rotating drive motor (7) meshing with a large gear on the central column (8) to rotate the rotating plate (6) by 120°, 240° or 360°.

3. The water heavy metal pollution recycling remediation equipment according to claim 1, characterized in that: The positioning plate (2) is symmetrically provided with micro hydraulic push rods (3), and the movable part of the micro hydraulic push rods (3) is connected to the top of the outer shell (4).

4. The water heavy metal pollution recycling remediation equipment according to claim 1, characterized in that: The organic polymer membrane on the outer surface of the purification column (5) is a polytetrafluoroethylene membrane.

5. The water heavy metal pollution recycling remediation equipment according to claim 1, characterized in that: The top of the water tank (9) is provided with a circular recess, and the bottom of the purification column (5) is inserted into the circular recess.

6. The water heavy metal pollution recycling remediation equipment according to claim 1, characterized in that: When the butterfly valve (11) is opened, the liquid medium enters the water tank (10) through the valve.

7. The water heavy metal pollution recycling remediation equipment according to claim 1, characterized in that: The three-way valve (12) is provided with an inlet (12-1), a circulation outlet (12-2), and a drain outlet (12-3). When the valve is open, the liquid medium in the water tank (10) enters the valve through the inlet (12-1), flows out of the valve through the circulation outlet (12-2), and is connected to the water inlet at the upper end of the water circulation pump (1) through a hose. When the valve core is reversed, the liquid medium in the water tank (10) enters the valve through the inlet (12-1) and flows out of the valve through the drain outlet (12-3). When the valve is closed, the liquid medium in the water tank (10) cannot flow out.

8. The water heavy metal pollution recycling remediation equipment according to claim 1, characterized in that: The heavy metal chelating particles of the purification column (5) are macroporous adsorption resin particles and membrane material matrix with natural and synthetic heavy metal ion chelating agents fixed thereon, which chelate and adsorb metal elements in the water.

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