CN216420626U

CN216420626U - Soil remediation device

Info

Publication number: CN216420626U
Application number: CN202122746262.0U
Authority: CN
Inventors: 刘璐; 张静; 李勋颖; 宋俊锋; 李风; 肖海峰
Original assignee: Xiangnan University
Current assignee: Xiangnan University
Priority date: 2021-07-19
Filing date: 2021-11-10
Publication date: 2022-05-03
Anticipated expiration: 2031-11-10

Abstract

The utility model relates to a soil pollution prosthetic devices technical field, its aim at provides a soil prosthetic devices. The adopted technical scheme is as follows: a soil remediation device comprises a box body, a water spraying device and a heat preservation material; the water spraying device is arranged on the box body, and a water outlet part of the water spraying device faces the box body; the heat insulation material is laid in the box body; the side plate of the box body is made of light-tight material. The utility model discloses can utilize the earthworm to restore heavy metal contaminated soil based on the bioremediation technique. Specifically, the utility model discloses in the implementation, can place the soil of the certain thickness that is polluted by the heavy metal in the box to place the earthworm in soil, water jet equipment is used for spraying water in to soil, in order to keep the humidity of soil, and insulation material is used for keeping warm in the box, and the curb plate of box sets up to light-tight material simultaneously, so that is fit for the living environment of earthworm in the box, restores heavy metal pollution soil through the earthworm.

Description

Soil remediation device

Technical Field

The utility model relates to a soil pollution prosthetic devices technical field especially relates to a soil prosthetic devices.

Background

Heavy metal pollution has become one of the most widely polluted and most harmful environmental problems in current soil pollution. Cd. Hg, As, Pb and Cr are used As heavy metal 'penta-toxic' elements, have the characteristics of high mobility, high toxicity, incapability of degradation and the like in soil, are easily absorbed and enriched by crops in production activities, seriously affect the yield and quality of the crops, and accumulate in human bodies in a food chain mode to harm the health of the human bodies. At present, the remediation of the heavy metal contaminated soil is an urgent need for national and regional ecological safety and sustainable development, and the research and the use of an efficient and low-cost soil bioremediation technology have an important propulsion effect on the remediation of the heavy metal contaminated soil.

In the prior art, the soil remediation technology mainly comprises physical remediation, chemical remediation, biological remediation and the like, wherein the physical remediation and the chemical remediation have the defects of high cost, limited application scale, easy soil degradation, easy damage to soil biological diversity, easy secondary pollution and the like although the remediation effect is good and the remediation speed is high. Bioremediation refers to a process of reducing the content of heavy metals in contaminated soil or weakening the toxicity thereof by using life metabolic activities, so that the soil is partially or completely restored to an original state, and compared with physical remediation and chemical remediation, the bioremediation has the unique advantages of low cost, high benefit and difficulty in generating secondary pollution.

As the largest component of the biomass of soil animals, the earthworms can improve the soil structure and improve the effectiveness of soil nutrients. The activity of the earthworms in the soil influences the conversion of organic matters and the release of nutrient elements in the soil, and can enhance the microbial activity of the soil. During the life activities of feeding, digging and excreting of the earthworms, the biological effectiveness of the heavy metals in the soil is directly or indirectly influenced, so that the growth of the plants is promoted, the adsorption of the plants on the heavy metals is increased to a certain extent, and the effect of repairing the soil is achieved. Groenigen et al (Groenigen JWV, Lubbers IM, Vos HMJ, et al. Earth works in growth plant production: a meta-analysis [ J ] Scientific Reports,2014,4(1):812-818.) by statistical analysis of the 58 sets of data in reference 462, earthworms were found to increase the biomass of the aerial part of the plant by 23%, the biomass of the underground part by 20%, and the total biomass by 21%. However, the research on animal remediation of soil heavy metal pollutants is still in the beginning stage at present, and a mature remediation case which can be applied to the actual polluted soil area in a large scale is not found yet. Therefore, there is a need for a soil remediation device that can remediate heavy metal contaminated soil using earthworms based on bioremediation technology.

SUMMERY OF THE UTILITY MODEL

In order to solve above-mentioned technical problem to a certain extent at least, the utility model provides a soil remediation device.

The utility model adopts the technical proposal that:

a soil remediation device comprises a box body, a water spraying device and a heat preservation material; the water spraying device is arranged on the box body, and a water outlet part of the water spraying device faces the box body; the heat insulation material is laid in the box body; the side plate of the box body is made of light-tight material.

Preferably, the soil remediation device further comprises a sliding rail, a sliding block and a supporting plate; the sliding rail is arranged at the top of the box body, the sliding rail extends along the length direction of the box body, the sliding block is arranged on the sliding rail in a sliding mode, the supporting plate is connected with the sliding block, and the supporting plate is horizontally arranged at the top of the box body; the water spraying device is arranged on the supporting plate, a water outlet hole is formed in the supporting plate, and a water outlet portion of the water spraying device is arranged towards the supporting plate.

Furthermore, the water spraying device comprises a spray head, a valve and a water tank, the water tank is communicated with the spray head, the valve is arranged between the spray head and the water tank, and the spray head faces the support plate; the soil remediation device also comprises a controller, a temperature sensor and a humidity sensor which are arranged in the box body; and the valve, the temperature sensor and the humidity sensor are all electrically connected with the controller.

Preferably, a breathable net is laid on the heat insulation material.

Preferably, the side plates of the box body are adjustable in height.

Preferably, a magic tape is attached to the side plate of the box body.

Preferably, the bottom of the box body is provided with a plurality of rollers.

The beneficial effects of the utility model are concentrated and are embodied in:

1) the earthworm can be used for remediating heavy metal contaminated soil based on a bioremediation technology. Specifically, in the implementation process of the utility model, soil with a certain thickness polluted by heavy metal can be placed in the box body, earthworms are placed in the soil, the water spraying device is used for spraying water into the soil to keep the humidity of the soil, the heat insulation material is used for preserving the heat in the box body, and meanwhile, the side plate of the box body is made of light-tight material, so that the interior of the box body is suitable for the living environment of the earthworms, and the heavy metal polluted soil is repaired by the earthworms;

2) the supporting plate is realized by adopting a fine mesh sieve type ventilation plate, and has the functions of supporting the water spraying device, shading the box body and the like; the sliding rails and the sliding blocks can realize the movement of the supporting plate and the water spraying device, so that the water spraying operation can be conveniently carried out on the soil at different positions in the box body;

3) the controller can be according to the size of temperature and humidity, the switching or the degree of opening of adjustment valve to realize the automatic control to the internal humiture of box, and then make the internal temperature of box and humidity suit the living environment of earthworm all the time.

Drawings

FIG. 1 is a schematic structural view of a soil remediation device according to the present invention;

FIG. 2 is a cross-sectional view of the housing of the arrangement shown in FIG. 1;

fig. 3 is a control block diagram in the present invention.

In the figure: 1-a box body; 2-heat insulation material; 3-a slide rail; 4-a slide block; 5-a support plate; 6-a spray head; 7-a valve; 8-a controller; 9-a temperature sensor; 10-a humidity sensor; 11-a breathable net; 12-magic tape; 13-a roller; 14-soil; 15-baffle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

In the description of the embodiments of the present invention, the terms "disposed", "mounted" and "connected" should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Example 1:

the embodiment provides a soil remediation device, as shown in fig. 1 and 2, comprising a box body 1, a water spraying device and a heat preservation material 2; the water spraying device is arranged on the box body 1, and a water outlet part of the water spraying device faces the inside of the box body 1; the heat insulation material 2 is laid in the box body 1; the side plate of the box body 1 is made of light-tight material.

The embodiment can be used for repairing heavy metal contaminated soil by using earthworms based on a bioremediation technology. Specifically, this embodiment is in the implementation, can place the soil 14 of the certain thickness that is polluted by the heavy metal in box 1 to place the earthworm in soil 14, water jet equipment is used for spraying water in soil 14, in order to keep the humidity of soil 14, and insulation material 2 is used for keeping warm in the box 1, and the curb plate of box 1 sets up to light tight material simultaneously, so that be fit for the living environment of earthworm in the box 1, restores heavy metal pollution soil through the earthworm.

In this embodiment, the soil remediation device further comprises a slide rail 3, a slide block 4 and a support plate 5; the sliding rail 3 is arranged at the top of the box body 1, the sliding rail 3 extends along the length direction of the box body 1, the sliding block 4 is arranged on the sliding rail 3 in a sliding mode, the supporting plate 5 is connected with the sliding block 4, and the supporting plate 5 is horizontally arranged at the top of the box body 1; the water spraying device is arranged on the supporting plate 5, a water outlet hole is formed in the supporting plate 5, and a water outlet portion of the water spraying device is arranged towards the supporting plate 5. Specifically, in this embodiment, the supporting plate 5 is implemented by a fine mesh sieve type air permeable plate, which plays a role in supporting the water spraying device and keeping the box body 1 away from light; the sliding rails 3 and the sliding blocks 4 are arranged, so that the supporting plate and the water spraying device can be moved, and the water spraying operation on the soil 14 at different positions in the box body is facilitated.

In this embodiment, the periphery of the supporting plate 5 is further provided with a baffle 15, and the baffle 15 is used for protecting the water spraying device.

Specifically, the water spray device includes a spray head 6, a valve 7 (not shown in fig. 1) and a water tank (not shown in fig. 1), the water tank is arranged to communicate with the spray head 6, the valve 7 is arranged between the spray head 6 and the water tank, and the spray head 6 is arranged toward the support plate 5; the soil remediation device further comprises a controller 8, a temperature sensor 9 and a humidity sensor 10 which are arranged in the box body 1; as shown in fig. 3, the valve 7, the temperature sensor 9 and the humidity sensor 10 are all electrically connected to the controller 8. It should be noted that the temperature sensor 9 is used for sensing the temperature in the box body 1 and sending the temperature to the controller 8, the humidity sensor 10 is used for sensing the humidity in the box body 1 and sending the humidity to the controller 8, and the controller 8 can adjust the opening and closing or opening degree of the valve 7 according to the temperature and humidity, so as to realize the automatic control of the temperature and humidity in the box body 1, and further enable the temperature and humidity in the box body 1 to be suitable for the living environment of the earthworms all the time.

In this embodiment, the controller 8 may be implemented by, but not limited to, a single chip microcomputer of the model STM32F103RCT6, and the STM32F103C8T6 is an ST (intentionally made semiconductor) push-out kernel STM32F4 series high performance microcontroller, which employs a 90 nm NVM process and an ART (adaptive real-time memory accelerator), where the ART technology enables zero-wait execution of a program, improves the efficiency of program execution, and brings the performance of cortex-M4 into full play, so that the STM32F4 series can reach 210DMIPS @168 MHz. Meanwhile, the STM32F4 series of microcontrollers integrate single-cycle DSP instructions and FPUs (floating point units), so that the computing power is improved, and some complex computations and control can be performed.

It should be understood that a power supply (not shown) is also disposed within the housing 1 for providing electrical support to the controller 8 and the valve 7. In this embodiment, the controller 8, the valve 7, the temperature sensor 9, and the humidity sensor 10 are all connected to the controller 8, and the connections between the above components are all electrically connected, and the connection manners are common knowledge of those skilled in the art, and are not described herein again.

In this embodiment, the air permeable net 11 is laid on the heat insulating material 2. It should be noted that the air permeable net 11 is used for isolating the thermal insulation material 2 from the soil to be repaired, so as to prevent the thermal insulation material 2 from being polluted, damaged and the like, and facilitate the realization of the recycling of the thermal insulation material 2.

In this embodiment, the height of the side plate of the box body 1 is adjustable. It should be noted that, the side plate of the box body 1 can be set as a telescopic plate, and the user can adjust the height of the side plate of the box body 1 according to the requirement.

In this embodiment, the side plate of the box body 1 is provided with a magic tape 12. Specifically, the inner wall and the outer wall of the side plate of the box body 1 are both provided with magic tapes 12. The magic tapes 12 are sewn on the gauze or nylon net, the gauze or nylon net is attached to the inner wall or the outer wall of the side plate of the box body 1, the magic tapes 12 arranged on the inner wall of the side plate of the box body 1 can play a role of preventing earthworms from escaping, and when the earthworms climb to the magic tapes 12, the earthworms can fall back into the box body; magic subsides 12 of the outer wall of the curb plate of setting at box 1 can be convenient for operating personnel through magic subsides 12 with a plurality of box connection as an organic wholes, be convenient for realize polluting the unified processing of soil.

In this embodiment, the bottom of the box 1 is provided with a plurality of rollers 13, and the rollers 13 are provided. It should be noted that the rollers 13 are provided to facilitate the movement of the box 1.

Finally, it should be noted that the above-mentioned embodiments should not be construed as limiting the scope of the present invention, which is defined in the following claims, which are intended to be interpreted only in accordance with the purpose of the present disclosure.

Claims

1. A soil remediation device characterized by: comprises a box body (1), a water spraying device and a heat insulation material (2); the water spraying device is arranged on the box body (1), and a water outlet part of the water spraying device faces the inside of the box body (1); the heat insulation material (2) is laid in the box body (1); the side plate of the box body (1) is made of light-tight material.

2. A soil remediation device according to claim 1, wherein: the soil remediation device further comprises a sliding rail (3), a sliding block (4) and a supporting plate (5); the sliding rail (3) is arranged at the top of the box body (1), the sliding rail (3) extends along the length direction of the box body (1), the sliding block (4) is arranged on the sliding rail (3) in a sliding mode, the supporting plate (5) is connected with the sliding block (4), and the supporting plate (5) is horizontally arranged at the top of the box body (1); the water spraying device is arranged on the supporting plate (5), a water outlet hole is formed in the supporting plate (5), and a water outlet portion of the water spraying device is arranged towards the supporting plate (5).

3. A soil remediation device according to claim 2, wherein: the water spraying device comprises a spray head (6), a valve (7) and a water tank, the water tank is communicated with the spray head (6), the valve (7) is arranged between the spray head (6) and the water tank, and the spray head (6) faces the support plate (5); the soil remediation device further comprises a controller (8), a temperature sensor (9) and a humidity sensor (10) which are arranged in the box body (1); the valve (7), the temperature sensor (9) and the humidity sensor (10) are all electrically connected with the controller (8).

4. A soil remediation device according to claim 1, wherein: and a breathable net (11) is laid on the heat-insulating material (2).

5. A soil remediation device according to claim 1, wherein: the height of the side plate of the box body (1) is adjustable.

6. A soil remediation device according to claim 1, wherein: the side plate of the box body (1) is provided with a magic tape (12).

7. A soil remediation device according to claim 1, wherein: the bottom of box (1) is provided with gyro wheel (13), gyro wheel (13) are provided with a plurality ofly.