CN-122007141-A - Electric plant cooperative restoration system and method for heavy metal contaminated soil

Abstract

The invention discloses an electric plant cooperative restoration system and method for heavy metal contaminated soil, which relate to the field of heavy metal contaminated soil restoration and comprise a support frame, wherein the support frame is rotationally connected with two mounting shafts, the outer surface of each mounting shaft is in transmission connection with a first driving mechanism connected with the support frame, the first driving mechanism is used for driving the installation shaft to rotate, and the electric plant cooperative restoration system and method for the heavy metal contaminated soil are used for remarkably improving the purification effect of the heavy metal contaminated soil through the cooperative effects of electric restoration, plant restoration and microorganisms. In phytoremediation, the super-accumulated plant root system secretes organic acid, chelating agent and the like, activates and releases heavy metals to soil solution, improves the bioavailability of the heavy metals, and promotes migration and enrichment of the heavy metal ions in cooperation with the electrokinetic remediation.

Inventors

• ZHENG MING
• He Yexia
• Zheng Hedie
• BIAN XINGBAO

Assignees

• 常州厚绩管理咨询有限公司

Dates

Publication Date

20260512

Application Date

20260330

Claims (8)

1. 1. The utility model provides an electronic plant cooperative repair system for heavy metal contaminated soil, its characterized in that, including support frame (1), support frame (1) internal rotation is connected with two installation axle (2), the surface transmission of installation axle (2) is connected with the first actuating mechanism that is connected with support frame (1), first actuating mechanism is used for driving installation axle (2) and rotates, two fixedly connected with purifying box (3) between installation axle (2), be provided with negative pole case (4) and positive pole case (5) in purifying box (3), all fixedly connected with filter plate (6) on negative pole case (4) and positive pole case (5), all be provided with graphite electrode (7) in negative pole case (4) and positive pole case (5), the input of graphite electrode (7) is through electric wire electric connection, negative pole case (4) and positive pole case (5) are last all through pipeline fixedly connected with purifying box (3) fixedly connected's two-way pump body (8); The utility model discloses a solar energy planting device, including support frame (1), first flexible driving piece (9) of fixedly connected with in the support frame (1), output fixedly connected with planting board (10) of first flexible driving piece (9), a plurality of planting holes (11) have been seted up at the top of planting board (10), a plurality of soil release grooves (12) have been seted up at the top of planting board (10), rotate on purifying box (3) and be connected with mounting tube (13), the surface transmission of mounting tube (13) is connected with the second actuating mechanism who is connected with purifying box (3), second actuating mechanism is used for driving mounting tube (13) and rotates, sliding connection has transfer line (14) in mounting tube (13), the surface fixedly connected with transmission piece (15) of transfer line (14), set up in transfer line (14) with transmission groove (16) of transmission piece (15) sliding connection, the top fixedly connected with spiral pipe (17).
2. 2. An electric plant cooperative repair system for heavy metal contaminated soil according to claim 1, wherein the first driving mechanism comprises a second telescopic driving piece (21) fixedly connected with the supporting frame (1), an output end of the second telescopic driving piece (21) is fixedly connected with a transmission rack (22) which is slidably connected with the supporting frame (1), and one side of the transmission rack (22) is in meshed connection with a transmission gear (23) fixedly sleeved with the mounting shaft (2).
3. 3. An electric plant cooperative repair system for heavy metal contaminated soil according to claim 1, wherein the second driving mechanism comprises a rotation driving part (31) fixedly connected with the purifying box (3), an output end of the rotation driving part (31) is fixedly connected with a first transmission shaft (32) rotationally connected with the purifying box (3), the outer surface of the first transmission shaft (32) is connected with a plurality of second transmission shafts (33) rotationally connected with the purifying box (3) through a transmission wheel and a transmission belt, the outer surface of the second transmission shaft (33) is connected with a third transmission shaft (34) rotationally connected with the purifying box (3) through a transmission wheel and a transmission belt, the outer surfaces of the second transmission shaft (33) and the third transmission shaft (34) are fixedly sleeved with a first gear (35), and the outer surface of the first gear (35) is in meshed connection with a second gear (36) fixedly sleeved with the mounting pipe (13).
4. 4. An electric plant cooperative repair system for heavy metal contaminated soil according to claim 1, characterized in that the outer surface of the purifying box (3) is fixedly connected with a third telescopic driving piece (41), the output end of the third telescopic driving piece (41) is fixedly connected with a transmission box (42), the transmission box (42) is rotationally connected with the bottom end of the transmission pipe (14), a plurality of liquid outlet holes (43) are formed in the outer surface of the spiral pipe (17), and a supply mechanism connected with the supporting frame (1) is arranged on the transmission box (42) and is used for supplying nutrient solution to the transmission box (42).
5. 5. An electric plant cooperative remediation system for heavy metal contaminated soil according to claim 4, wherein the supply mechanism comprises a liquid supply pump (51) fixedly connected with a support frame (1), an output end of the liquid supply pump (51) is fixedly connected with a first connecting pipe (52), one end of the first connecting pipe (52) is fixedly connected with a second connecting pipe (53), an outer surface of the second connecting pipe (53) is fixedly connected with a hose (54) fixedly connected with a transmission case (42), and an electromagnetic valve is arranged on the first connecting pipe (52).
6. 6. An electric plant cooperative remediation system for heavy metal contaminated soil according to claim 5, wherein the outer surface of the second connecting pipe (53) is fixedly connected with a third connecting pipe (55), one end of the third connecting pipe (55) is fixedly connected with a blower (56), and an electromagnetic valve is arranged on the third connecting pipe (55).
7. 7. The electric plant cooperative repair system for heavy metal contaminated soil according to claim 1, wherein a fixing plate is fixedly connected to the bottom of the supporting frame (1), and a plurality of fixing holes are formed in the fixing plate.
8. 8. An electric plant cooperative repair method for heavy metal contaminated soil, characterized by adopting the electric plant cooperative repair system for heavy metal contaminated soil according to any one of claims 1 to 7, comprising the steps of: firstly, pouring heavy metal soil into a purifying box (3), then planting plants in planting holes (11) on a planting plate (10), and then driving the planting plate (10) to move downwards to cover the top of the purifying box (3); Step two, deionized water is pumped into the cathode box (4), the anode box (5) and the purifying box (3) through a two-way pump on the purifying box (3), and then the graphite electrode (7) is electrified, so that heavy metal ions in soil are enriched into the cathode box (4) and the anode box (5); Step three, driving the spiral tube (17) to rotate through the second driving mechanism in the enrichment and purification process, and simultaneously supplying nutrient solution and air to the spiral tube (17) to promote the purification of heavy metal soil in the purification box (3); And fourthly, after the soil in the purifying box (3) is purified, the first driving mechanism drives the installation shaft (2) and the purifying box (3) to rotate, the purifying box (3) pours out the purified soil, then the soil to be purified is put into the purifying box (3), and then the steps are repeated to purify the heavy metal soil.

Description

Electric plant cooperative restoration system and method for heavy metal contaminated soil Technical Field The invention relates to a heavy metal contaminated soil remediation technology, in particular to an electric plant cooperative remediation system and method for heavy metal contaminated soil. Background The problem of heavy metal contaminated soil has become a global environmental challenge, severely threatening ecological safety and human health. The traditional repair technology such as chemical leaching, soil dressing replacement and the like can partially remove heavy metals, but has the defects of high cost, secondary pollution risk, soil structure damage and the like. Under the background, the electric repair technology is an emerging in-situ repair means, and is gradually paid attention to by virtue of the advantages of low operation cost, simple installation, suitability for low permeability soil and the like. The core principle of the electric remediation technology is that inert electrodes are implanted into two ends of polluted soil and a direct current electric field is applied, and various electric effects (including electrodialysis, electromigration, electrophoresis, diffusion and the like) caused by the electric field are utilized to drive charged heavy metal ions in the soil to directionally migrate along the direction of the electric field, so that the heavy metals are finally enriched to the area nearby the electrodes for centralized treatment. However, the single electric remediation technology still faces various limitations in practical application, such as limited removal effect on steady-state heavy metals (such as iron-manganese oxide combined state and residue state) in soil, and poor remediation dead zone caused by uneven electric field distribution, which results in poor purification effect on heavy metal soil and influences on recovery of ecological functions of soil. Disclosure of Invention The invention aims to provide an electric plant cooperative restoration system and method for heavy metal contaminated soil, which are used for solving the problem of poor effect of removing heavy metal in heavy metal soil in the prior art. In order to achieve the aim, the invention provides the technical scheme that the electric plant cooperative restoration system for heavy metal contaminated soil comprises a support frame, wherein two installation shafts are connected in a rotating manner, a first driving mechanism connected with the support frame is connected to the outer surface of each installation shaft in a transmission manner, the first driving mechanism is used for driving the installation shafts to rotate, a purifying box is fixedly connected between the two installation shafts, a cathode box and an anode box are arranged in each purifying box, filter plates are fixedly connected to the cathode box and the anode box, graphite electrodes are arranged in each cathode box and each anode box, the input ends of the graphite electrodes are electrically connected with a direct current power supply through wires, and a bidirectional pump body fixedly connected with the purifying box is fixedly connected to each cathode box and each anode box through a pipeline; The utility model discloses a solar energy collection device, including support frame, first flexible driving piece of fixedly connected with in the support frame, the output fixedly connected with planting board of first flexible driving piece, a plurality of planting holes have been seted up at the top of planting board, a plurality of soil grooves of putting have been seted up at the top of planting board, rotate on the purifying box and be connected with the installation pipe, the surface transmission of installation pipe is connected with the second actuating mechanism who is connected with the purifying box, the second actuating mechanism is used for driving the installation pipe and rotates, sliding connection has the transfer line in the installation pipe, the surface fixedly connected with transfer line of transfer line, set up the transfer line with transfer line sliding connection in the transfer line, the top fixedly connected with spiral pipe of transfer line. Further, the first driving mechanism comprises a second telescopic driving piece fixedly connected with the supporting frame, the output end of the second telescopic driving piece is fixedly connected with a transmission rack which is in sliding connection with the supporting frame, and one side of the transmission rack is in meshed connection with a transmission gear which is fixedly sleeved with the mounting shaft. Further, the second actuating mechanism includes the rotation driving piece of purifying box fixed connection, the output fixedly connected with of rotation driving piece rotates the first transmission shaft of being connected with the purifying box, the surface of first transmission shaft is connected with a plurality of second transmission sha