CN103418607A - Magnetic-assistance electrokinetic remediation device for contaminated soil - Google Patents

Abstract

Translated fromChinese

本发明公开了一种污染土壤磁助电动修复装置。通过外加电场和磁场的作用，使土壤中的污染物质加速富集于规定区域，达到清洁土壤的目的。本发明装置包括电极液添加管、阳极板、处理区、阴极柱、电极室、磁铁、外壳、电极液排放管。将污染土壤置于处理区，电极液经过管道进入电极室区，然后在外加电磁场的作用下土壤中的污染物迅速迁移，提高了局部污染物的浓度。本发明结构简单、建造成本低、易于操作，而且可以实现了土壤中多种污染物的降解去除。

The invention discloses a magnetically assisted electric restoration device for polluted soil. Through the action of external electric field and magnetic field, the pollutants in the soil can be accelerated and enriched in the specified area, so as to achieve the purpose of cleaning the soil. The device of the invention comprises an electrode liquid adding pipe, an anode plate, a treatment area, a cathode column, an electrode chamber, a magnet, a shell, and an electrode liquid discharge pipe. The contaminated soil is placed in the treatment area, and the electrode solution enters the electrode chamber area through the pipeline, and then the pollutants in the soil migrate rapidly under the action of an external electromagnetic field, which increases the concentration of local pollutants. The invention has the advantages of simple structure, low construction cost and easy operation, and can realize the degradation and removal of various pollutants in the soil.

Description

Translated fromChinese

一种污染土壤磁助电动修复装置A magnetic-assisted electric restoration device for polluted soil

技术领域technical field

     本发明属于污染土壤处理技术领域，具体地说，它涉及一种污染土壤磁助电动修复装置，用于处理污染土壤中的重金属或者有机污染物。     The invention belongs to the technical field of contaminated soil treatment, in particular, it relates to a magnetic-assisted electric restoration device for contaminated soil, which is used for processing heavy metals or organic pollutants in the polluted soil.

背景技术Background technique

土壤作为一种典型的复合污染介质，其污染具有累积性、滞后性、隐蔽性和不可逆性，极难进行恢复和处理。土壤中的污染物可以通过多种途径进入土壤，使土壤的性质、组成及性状等发生变化，破坏土壤的自然动态平衡，从而导致土壤自然功能失调、土壤质量恶化、影响作物的生长发育、产品的产量和质量下降，产生一定的环境效应，并通过食物链对生物和人类造成威胁。As a typical compound polluted medium, soil pollution is cumulative, hysteresis, concealment and irreversible, and it is extremely difficult to restore and deal with it. Pollutants in the soil can enter the soil through various channels, causing changes in the properties, composition and properties of the soil, and destroying the natural dynamic balance of the soil, resulting in soil natural dysfunction, deterioration of soil quality, and affecting the growth and development of crops. The yield and quality of the food will decline, produce certain environmental effects, and pose a threat to organisms and humans through the food chain.

目前，国内外科研人员已经发展了多种土壤处理修复技术，虽然取得了一定的成果，但单一的修复技术在适用范围和经济性上具有一定限制，将多种方法结合起来的复合修复技术及其相关装置成为了研究的热点。电动修复技术是利用外加电场在土壤两侧形成电场梯度，土壤中污染物在电场作用下定向迁移被带到电极附近，从而清洁污染土壤。而磁场会对土壤以及污染物的机械物理和电化学性质产生影响。该发明将电动修复技术与磁处理技术结合起来，利用两种物理场提供能量加速土壤中污染物的去除。At present, researchers at home and abroad have developed a variety of soil treatment and restoration technologies. Although certain results have been achieved, a single restoration technology has certain limitations in the scope of application and economy. The composite restoration technology that combines multiple methods and Its related devices have become a research hotspot. Electrokinetic remediation technology uses an external electric field to form an electric field gradient on both sides of the soil, and the pollutants in the soil migrate directionally under the action of the electric field and are brought to the vicinity of the electrode, thereby cleaning the polluted soil. Magnetic fields can affect the mechanophysical and electrochemical properties of soil and pollutants. The invention combines electrodynamic remediation technology with magnetic treatment technology, using two physical fields to provide energy to accelerate the removal of pollutants in soil.

发明内容Contents of the invention

本发明的目的在于提供一种结构简单、建造成本低、易于操作的污染土壤磁助电动修复装置，旨在实现土壤中多种污染物的降解去除。 The object of the present invention is to provide a magnetic-assisted electrodynamic restoration device for polluted soil with simple structure, low construction cost and easy operation, aiming at realizing the degradation and removal of various pollutants in the soil. the

为实现上述目的，采用以下技术方案：一种污染土壤磁助电动修复装置，包括：电极液添加管、阳极板、处理区、阴极柱、电极室、磁铁、外壳、电极液排放管；所述装置为敞口状，最外层为外壳；所述电极室位于外壳内部，所述电极液添加管位于装置上部，伸入电极室内；所述阳极板设于电极室内部；电极室内部的区域为处理区；所述阴极柱位于处理区的中心；所述磁铁镶嵌于电极室与外壳之间；在装置下部设有从电极室伸出的电极液排放管。In order to achieve the above purpose, the following technical solutions are adopted: a magnetically assisted electric restoration device for polluted soil, comprising: an electrode solution adding pipe, an anode plate, a treatment area, a cathode column, an electrode chamber, a magnet, a casing, and an electrode solution discharge pipe; The device is open, and the outermost layer is a casing; the electrode chamber is located inside the casing, and the electrode liquid addition pipe is located on the upper part of the device and extends into the electrode chamber; the anode plate is arranged inside the electrode chamber; the area inside the electrode chamber It is a processing area; the cathode column is located in the center of the processing area; the magnet is embedded between the electrode chamber and the shell; an electrode liquid discharge pipe protruding from the electrode chamber is provided at the bottom of the device.

所述电极室5的内壁为多孔板。The inner wall of the electrode chamber 5 is a porous plate.

装置为圆柱状或长方体状。The device is cylindrical or cuboid.

所述装置适用电势梯度为0.5～1.5V/cm 。The applicable potential gradient of the device is 0.5-1.5V/cm.

本发明的关键在于通过在电场和磁场的共同作用下，实现土壤中的污染物加速定向迁移，达到清洁污染土壤的目的。本发明结构简单、建造成本低、易于操作，而且可以实现了土壤中多种污染物的降解去除。The key of the present invention is to realize the accelerated directional migration of pollutants in the soil under the joint action of electric field and magnetic field, so as to achieve the purpose of cleaning polluted soil. The invention has the advantages of simple structure, low construction cost and easy operation, and can realize the degradation and removal of various pollutants in the soil.

附图说明Description of drawings

图1是本发明一种污染土壤磁助电动修复装置的俯视图。Fig. 1 is a top view of a magnetic-assisted electric restoration device for polluted soil according to the present invention.

图2是本发明一种污染土壤磁助电动修复装置的侧面剖视图。Fig. 2 is a side sectional view of a magnetic-assisted electrodynamic restoration device for polluted soil according to the present invention.

附图标记：1—电极液添加管，2—阳极板，3—处理区，4—阴极柱，5—电极室，6—磁铁，7—外壳，8—电极液排放管。Reference signs: 1—electrode liquid adding pipe, 2—anode plate, 3—processing area, 4—cathode column, 5—electrode chamber, 6—magnet, 7—shell, 8—electrode liquid discharge pipe.

具体实施方式Detailed ways

下面对照附图和具体实施例对本发明做进一步的说明。The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

如图1和2所示，本装置包括电极液添加管1、阳极板2、处理区3、阴极柱4、电极室5、磁铁6、外壳7、电极液排放管8。装置为敞口圆柱形，最外层为外壳7。电极室5位于外壳内部，电极液添加管1位于装置上部，伸入电极室5内。阳极板2设于电极室5内部，电极室5内部的区域为处理区3。阴极柱4位于处理区3的中心。在电极室5与外壳7之间镶嵌有磁铁6。在装置下部设有从电极室5伸出的电极液排放管8。电极室5接触处理区3接触的内壁为多孔板。装置适用电势梯度为0.5～1.5V/cm。As shown in Figures 1 and 2, the device includes an electrode solution adding pipe 1, an anode plate 2, a treatment area 3, a cathode column 4, an electrode chamber 5, a magnet 6, a casing 7, and an electrode solution discharge pipe 8. The device is an open cylinder, and the outermost layer is the shell 7. The electrode chamber 5 is located inside the casing, and the electrode solution adding pipe 1 is located on the upper part of the device and extends into the electrode chamber 5 . The anode plate 2 is arranged inside the electrode chamber 5 , and the area inside the electrode chamber 5 is the treatment area 3 . The cathode column 4 is located in the center of the treatment zone 3 . A magnet 6 is embedded between the electrode chamber 5 and the casing 7 . An electrode solution discharge pipe 8 protruding from the electrode chamber 5 is provided at the lower part of the device. The inner wall of the electrode chamber 5 in contact with the treatment area 3 is a porous plate. The applicable potential gradient of the device is 0.5-1.5V/cm.

装置也可为敞口长方体状。The device can also be in the shape of an open cuboid.

使用本装置时，首先将污染土壤分层压实置于处理区内；以自来水或者电解质溶液作为电极液由电极液添加管进入电极室内，并通过多孔内壁进入处理区；然后用导线将阳极板和阴极柱连接于直流电源的正负极，调节电势梯度为0.5～1.5V/cm；在电磁场作用下，装置运行24h；反应结束后，电极液由电极液排放管排出。When using this device, the contaminated soil is first layered and compacted in the treatment area; tap water or electrolyte solution is used as the electrode liquid to enter the electrode chamber through the electrode liquid addition tube, and enter the treatment area through the porous inner wall; Connect the positive and negative poles of the DC power supply with the cathode column, adjust the potential gradient to 0.5-1.5V/cm; under the action of the electromagnetic field, the device runs for 24 hours; after the reaction, the electrode solution is discharged from the electrode solution discharge pipe.

虽然本发明已以较佳实施例公开如上，但实施例和附图并不是用来限定本发明，任何熟悉此技艺者，在不脱离本发明之精神和范围内，自当可作各种变化或润饰，但同样在本发明的保护范围之内。因此本发明的保护范围应当以本申请的权利要求保护范围所界定的为准。Although the present invention has been disclosed above with preferred embodiments, the embodiments and accompanying drawings are not intended to limit the present invention, and any person familiar with the art can make various changes without departing from the spirit and scope of the present invention. Or modification, but also within the protection scope of the present invention. Therefore, the protection scope of the present invention should be defined by the protection scope of the claims of the present application.

Claims (4)

1. a contaminated soil magnetic helps electronic prosthetic device, it is characterized in that comprising: electrode solution adding tube (1), positive plate (2), treatment region (3), cathode column (4), electrode chamber (5), magnet (6), shell (7), electrode solution delivery pipe (8); Described device is uncovered shape, and outermost layer is shell (7); Described electrode chamber (5) is positioned at enclosure, and described electrode solution adding tube (1) is positioned at device top, stretches in electrode chamber (5); Described positive plate (2) is located at electrode chamber (5) inside; The inner zone of electrode chamber (5) is treatment region (3); Described cathode column (4) is positioned at the center for the treatment of region (3); Described magnet (6) is embedded between electrode chamber (5) and shell (7); Be provided with in the device bottom electrode solution delivery pipe (8) stretched out from electrode chamber (5).

2. help electronic prosthetic device according to the described contaminated soil magnetic of claims 1, it is characterized in that: the inwall of described electrode chamber (5) is porous plate.

3. help electronic prosthetic device according to the described contaminated soil magnetic of claims 1, it is characterized in that: described device is cylindric or rectangular-shaped.

4. help electronic prosthetic device according to the described contaminated soil magnetic of claims 1, it is characterized in that: the applicable potential gradient of described device is 0.5～1.5V/cm.

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