A method for recycling heavy metal filter element using electric power

Abstract

The present invention discloses an electro-powered resource processing method for a heavy metal filter element, comprising the following steps: (1) preparing a device container, arranging a base support in a container body, the base support being provided with a groove with an opening facing upward, a graphite electrode being fixed in the groove, and a titanium plate electrode being arranged on the periphery; (2) placing a heavy metal filter element in the base support, placing a graphite electrode in the center of the heavy metal filter element as a cathode, arranging the titanium plate electrode outside the heavy metal filter element as an anode, and filling an electrolyte in the container body so that the heavy metal filter element is completely immersed in the electrolyte; (3) connecting the cathode and the anode to the direct current power supply and a multimeter through a wire, turning on the direct current power supply and increasing the voltage gradient from 1 V / cm to 9-11 V, and running continuously for 3 days; (4) after running for 3 days, the heavy metal ions are enriched on the surface of the anode through electromigration, turning off the direct current power supply, taking out the titanium plate electrode, and recovering the heavy metals precipitated on the surface, thereby realizing recycling.

Description

Technical Field

[0001] The invention belongs to the technical field of heavy metal filter element purification treatment, and specifically relates to an electric power resource treatment method for a heavy metal filter element. Background Art

[0002] Industrial heavy metal filter elements are widely used, and are often used in water treatment, chemical industry, petroleum, medicine and other fields. After long-term use, heavy metal filter elements will be clogged by impurities and the filtering effect will be weakened. Used metal filter elements are treated as hazardous waste. The heavy metals generated during the disposal process cannot be centrally treated and recycled, which can easily cause environmental pollution. At the same time, the recycling cost and difficulty of metal filter elements are high, which is not conducive to energy conservation and environmental protection, and cannot realize the reuse value of the material. Therefore, it is necessary to develop a stable, economical and efficient method for treating heavy metal filter elements. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an electric power resource processing method for heavy metal filter elements, which solves the problems in the above-mentioned background technology that the heavy metals in the used waste heavy metal filter elements cannot be centrally processed and recycled, which easily pollutes the environment, and the recycling cost is high and difficult.

[0004] The technical solution adopted by the present invention to solve the technical problem is: to provide a method for recycling the electric power of a heavy metal filter element, comprising the following steps:

[0005] (1) A preparation device container is provided with a base support in the container body, wherein the base support is provided with a groove with an opening facing upward, a graphite electrode is fixed in the groove, and a titanium plate electrode is provided on the periphery;

[0006] (2) inserting a heavy metal filter into the base support of the container body, inserting the graphite electrode into the center of the heavy metal filter as a cathode, arranging the titanium plate electrode outside the heavy metal filter as an anode, and filling the container body with electrolyte so that the heavy metal filter is completely immersed in the electrolyte;

[0007] (3) connecting the cathode and the anode to the DC power supply and the multimeter through wires, turning on the DC power supply and raising the voltage gradient from 1 V / cm to 9-11 V, and running it continuously for 3 days;

[0008] (4) After running for 3 days, heavy metal ions are enriched on the anode surface through electromigration. The DC power supply is turned off, the titanium plate electrode is removed, and the heavy metals precipitated on the surface are recovered, thereby achieving recycling.

[0009] In a preferred embodiment of the present invention, the container body is cylindrical.

[0010] In a preferred embodiment of the present invention, the container body and the base support are made of polyvinyl chloride.

[0011] In a preferred embodiment of the present invention, the electrolyte is a 1.0-2.0 mol / L sodium chloride solution.

[0012] In a preferred embodiment of the present invention, the number of the titanium plate electrodes is 4 and the electrode shape is sheet-shaped.

[0013] In a preferred embodiment of the present invention, the number of the graphite electrode is one and the electrode is in a rod shape.

[0014] In a preferred embodiment of the present invention, the main component of the heavy metal filter element is copper. After voltage is applied, a current is formed between the titanium plate electrode and the graphite electrode. The copper ions migrate toward the anode under the action of the current, and are enriched on the surface of the titanium plate electrode through the effect of electromigration. Finally, the heavy metals precipitated on the titanium plate electrode are collected for recycling.

[0015] Compared with the background technology, this technical solution has the following advantages:

[0016] 1. This device: ① has a wide range of applications, especially suitable for heavy metal filter elements of various specifications; ② is energy-saving and environmentally friendly, with low operating costs; ③ is simple to operate, and has a high electric power resource utilization effect; ④ uses titanium plate electrodes as anodes, which have high current efficiency, good energy-saving effects, and excellent corrosion resistance. At the same time, the electrodes have a long service life and good practical usability; ⑤ The graphite electrode plate has good electrical conductivity, high stability, low loss, and low price.

[0017] 2. The titanium plate electrode of the device adopts a sheet structure, which increases the contact area with the electrolyte. Through the effect of electromigration between the titanium plate electrode and the graphite electrode, it is beneficial to the enrichment and precipitation of heavy metals on the anode surface.

[0018] 3. After the waste heavy metal filter element is treated by electrodynamic resource processing, the device enriches and precipitates heavy metals on the titanium plate electrode, thus realizing the recycling of heavy metals. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic diagram of the device for electric power resource processing of heavy metal filter elements in Example 1.

[0021] Among them, 1-graphite electrode, 2-titanium plate electrode, 3-heavy metal filter element, 4-base bracket, 5-DC power supply, 6-container body. DETAILED DESCRIPTION

[0022] It should be noted that the orientation or positional relationship indicated by the terms "center", "bottom", "inside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] Example 1

[0024] A method for recycling electric power of a heavy metal filter element 3 in this embodiment includes the following steps:

[0025] (1) Preparation Figure 1 Device:

[0026] The device includes a container body 6, a DC power supply 5 and a multimeter; the container body 6 is used to install a titanium plate electrode 2, a graphite electrode 1, and a base support; wherein the container body 6 is a cylindrical container, and it and the base support 4 are both made of polyvinyl chloride material; the base support 4 is arranged at the center bottom of the container body 6, and the base support 4 is provided with a groove with an opening facing upward, which is used to fix the heavy metal filter element 3 and the graphite electrode 1;

[0027] (2) A rod-shaped graphite electrode 1 is fixed at its bottom in the groove, and the graphite electrode 1 is placed in the center of a heavy metal filter element 3 as a cathode; four sheet-shaped titanium plate electrodes 2 are arranged outside the heavy metal filter element 3 as anodes; 1 mol / L sodium chloride solution is added into the device as an electrolyte, so that the device is completely immersed in the electrolyte;

[0028] (3) A DC power supply 5 and a multimeter are connected between the cathode and anode electrodes through wires; the wires are connected, a DC voltage of 10.0 V (voltage gradient is 1 V / cm) is set, the power supply is turned on and operated at this voltage for 3 days;

[0029] (4) After running for 3 days, the DC power supply 5 is turned off, and the heavy metal ions in the waste heavy metal filter element 3 are enriched on the anode surface through electromigration. The titanium plate electrode 2 is taken out, and the heavy metals precipitated on the surface can be further recovered, thereby realizing recycling.

[0030] The method of this embodiment is energy-saving and environmentally friendly, with low operating costs; the manufacturing device is simple to operate, and a titanium plate electrode 22 is used as the anode, with high current efficiency, good energy-saving effect, and excellent corrosion resistance. At the same time, the electrode has a long service life and good practical usability; ⑤ The graphite electrode 11 plate has good electrical conductivity, high stability, low loss, and low price; the container body 6 has no restrictions on the shape of the heavy metal filter element 3, and can be applied to heavy metal filter elements 3 of various specifications, with a wide range of applications and strong industrial applicability.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for recycling heavy metal filter elements using electric power, characterized in that: The steps include: (1) A preparation device container is provided with a base support in the container body, wherein the base support is provided with a groove with an opening facing upward, a graphite electrode is fixed in the groove, and a titanium plate electrode is provided on the periphery; (2) inserting a heavy metal filter into the base support of the container body, inserting the graphite electrode into the center of the heavy metal filter as a cathode, arranging the titanium plate electrode outside the heavy metal filter as an anode, and filling the container body with electrolyte so that the heavy metal filter is completely immersed in the electrolyte; (3) connecting the cathode and the anode to a DC power supply and a multimeter through wires, turning on the DC power supply and raising the voltage gradient from 1 V / cm to 9-11 V, and running it continuously for 3 days; (4) After running for 3 days, heavy metal ions are enriched on the anode surface through electromigration. The DC power supply is turned off, the titanium plate electrode is removed, and the heavy metals precipitated on the surface are recovered, thereby achieving recycling.

2. The method for recycling electric power of a heavy metal filter element according to claim 1, characterized in that: The container body is cylindrical.

3. The method for recycling electric power of a heavy metal filter element according to claim 1, characterized in that: The container body and the base support are made of polyvinyl chloride.

4. The method for recycling electric power of a heavy metal filter element according to claim 1, characterized in that: The electrolyte is a 1.0-2.0 mol / L sodium chloride solution.

5. The method for recycling electric power of a heavy metal filter element according to claim 1, characterized in that: The number of the titanium plate electrodes is 4, and the electrode shape is sheet-shaped.

6. The method for recycling electric power of a heavy metal filter element according to claim 1, characterized in that: The number of the graphite electrode is one, and the electrode shape is a rod.

7. The method for recycling electric power of a heavy metal filter element according to claim 1, characterized in that: The heavy metals include copper.

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