TWI653073B - Tcs (triclosan) treatment system and method thereof for soil, sludge and water - Google Patents

Abstract

A method for treating triclosan comprises: providing an electric power rectifying device; arranging a triclosan to be rectified into the electric power rectifying device, and the triclosan to be treated comprises a triclosan contaminant; The divalent metal-iron/aluminum composite metal oxide electrode is disposed on the triclosan to be rectified in the electrodynamic rectification device, and the divalent metal-iron/aluminum composite metal oxidation electrode comprises an electrode core layer and a composite metal electrode outer layer And the electrode core layer is made of an aluminum-containing metal material, and the outer layer of the composite metal electrode is made of a divalent metal-iron composite metal material; an oxidation is formed between the electrode core layer and the outer layer of the composite metal electrode Reducing the reaction zone; and suitably combining the persulfate material with the aluminum-containing metal material and the divalent metal-iron composite metal material for proper catalytic degradation or mineralization treatment of the triclosan of the triclosan to be treated Things.

Description

Triclosan treatment system and method thereof in soil, sediment and water body

The present invention relates to a system and method for treating triclosan (TCS, Triclosan) in soil, sediment and water; in particular, a method for treating triclosan in soil, sediment and water body and method thereof Metal-iron/aluminum composite metal oxide electrode; more particularly, a system for treating triclosan in soil, sediment and water body and method thereof using cobalt-iron/aluminum composite metal oxide electrode for catalytic degradation or mineralization treatment environment Contaminant - triclosan in [soil, water or groundwater].

The invention relates to a conventional electric power soil remediation device, for example, a composite metal oxide electrode structure and a manufacturing method thereof of the Republic of China Patent No. TW-I571326, which discloses a composite metal oxide electrode structure and a manufacturing method thereof. The composite metal oxide electrode structure comprises a metal oxide electrode, an electrode core layer and an electrode outer layer, and the electrode core layer is made of a first metal material, and the electrode outer layer is made of a second metal material. The outer layer of the electrode is disposed on the electrode core layer to constitute the metal oxide electrode. In the electrodynamic soil remediation, a spontaneous reaction is appropriately generated by using the redox potential of the first metal material and the second metal material, so that the first metal material can supply electrons to facilitate oxidation of the second metal material to the second metal. The reduction forms a zero-valent second metal, which is then subjected to a Fenton reaction in water for degradation or mineralization of an organic contaminant. The first metallic material is selected from aluminum or an aluminum containing material, and the second metallic material is selected from iron or a ferrous material.

The composite metal oxide electrode structure of the aforementioned TW-I571326 The manufacturing method and the manufacturing method thereof are only applicable to the treatment of degraded or mineralized organic pollutants, and the composite metal oxide electrode is an iron/aluminum composite metal oxide electrode. Therefore, the conventional composite metal oxide electrode structure and its manufacturing method necessarily have further improvement requirements for the treatment of other pollutants.

Another conventional electric power soil remediation device, for example, a new patent of the hollow water-permeable electrode rod structure of the environmental electric power technology of the Republic of China Patent No. TW-M377425, which discloses a hollow water-permeable electrode rod structure, which comprises: An electric field device generates an electric field in the soil in the predetermined region, and has a positive electrode and a negative electrode; at least two electrode rods are respectively disposed on each of the positive and negative electrodes, the electrode rod is in the shape of a hollow rod, and the center thereof is formed in the axial direction. a space, and at least one perforated hole that is radially penetrated, is a through hole that can connect the space to an outer diameter edge of the electrode rod; and each of the electrode rods is respectively disposed on each of the positive electrode and the negative electrode, and when an electric field is generated, the soil The anion in the beginning begins to migrate toward the positive electrode; the heavy metal cation and the organic matter dissolved in the water all migrate toward the negative electrode, and can be infiltrated into the space for concentration, which can be conveniently extracted by a withdrawal device to remove heavy metal contaminants in the space.

Another conventional electric power soil remediation device, for example, the Republic of China Patent No. TW-I249441, the system and method for rectifying heavy metal contaminated soil by the electric power, discloses an electrodynamic remediation system and a method thereof. The electrodynamic reaction tank is open, and sub-grooves of different widths can be placed in the electrodynamic reaction tank, and can be used as a soil sub-tank, a buffer sub-tank, an electrode area, and the like.

Another conventional electric power soil remediation device, for example, the Republic of China Patent No. TW-I408258, the electric power method using a dual metal oxide electrode regeneration system, the invention patent case, which discloses an electrodynamic method using a double metal oxide electrode Regeneration system. The regeneration system includes a power supply unit, a cathode, and an anode. The power supply unit is configured to supply electric power to remove the required power of the contaminants to the cathode and the anode. The cathode is electrically connected to the power supply device, and the cathode is connected to a first end of a component to be regenerated. The anode Electrically connected to the power supply device, and the anode is connected to a second end of the component to be regenerated to electrically remove contaminants from the component to be regenerated. The anode is a double metal oxide electrode such that the double metal oxide electrode undergoes contaminant degradation at the anode.

Another conventional electric power soil remediation device, for example, the Republic of China Patent No. TW-I280952, a method for improving the lead and copper content of soil [sludge], which discloses an improved soil (sludge) lead and copper. The method of content can maintain pH neutrality and improve the efficiency of removing heavy metals from soil [sludge]. The anode and cathode electrodes are placed in the operating fluid storage tank, and are not in direct contact with the soil [sludge], and a DC voltage is applied to the treated soil [sludge].

Another conventional electrodynamic soil remediation device, for example, the Republic of China Patent No. TW-293056, an in-situ remedy for contaminated heterogeneous soil, discloses an in-situ remedy for contaminated heterogeneous soil regions. . The in-situ remedy method comprises [a] introducing a substance for treating pollutants in a bad area of the contaminated heterogeneous soil into at least one liquid permeable region of the contaminated heterogeneous soil region to form in the contaminated heterogeneous soil region. a treatment zone, [b] conducting a direct current through at least one low permeability soil zone in the contaminated heterogeneous soil zone between the first electrode and the second electrode having opposite charges, wherein [i] the first electrode site At the head end of the contaminated heterogeneous soil region, the second electrode is located at the opposite end of the contaminated heterogeneous soil region or [ii] the first electrode is at the beginning of each low permeability soil region, and the second electrode Located at the opposite end of each low permeability soil region, [1] to cause an electroosmotic flow from the second electrode to the first electrode, [2] to cause an electromigration movement of an ionic contaminant toward the opposite charge electrode, Or [3] causing an electroosmotic flow from the second electrode to the first electrode and an electromigration movement of an ionic contaminant toward the opposite charge electrode, and [c] applying a cross-contamination Water pressure drop homogeneous soil area to create a contamination by the contaminated heterogeneous soil region to the high-voltage terminal is the non-flat The water pressure at the low pressure end of the soil area.

In addition, regarding the conventional electrodynamic soil remediation technology, it is also disclosed in many foreign patents, for example, the Chinese Patent Publication No. CN-102527707, the U.S. Patent No. US-A-No. No. 6,193,867, and the U.S. Patent Publication No. US-2006163068.

In fact, the aforementioned Republic of China Patent No. TW-M377425, No. TW-I249441, Chinese Patent Publication No. CN-102527707, and U.S. Patent No. US-A-No. No. 6,193,867 are only the use of conventional inert electrodes for electrodynamic remediation of soil technology. . However, the conventional inert electrode can only remove the contaminant portion, that is, it still has technical problems that cannot effectively perform overall soil remediation.

In addition, the aforementioned Republic of China Patent Publication No. TW-I408258 employs a composite metal oxide electrode, that is, an improved double metal oxide electrode and a regeneration system thereof. However, many composite metal electrodes are typically made of precious metals, so they still have the technical premise that manufacturing costs are relatively expensive and less economical.

In addition, the aforementioned method of improving the soil (sludge) lead and copper content of the Republic of China Patent No. TW-I280952 and the remedy of the contaminated heterogeneous soil area of TW-293056 are only general repairs of contaminated soil. Technical methods only have technical problems that cannot effectively rectify the soil.

The aforementioned patent publications, Republic of China Patent No. TW-I571326, No. TW-M377425, No. TW-I249441, No. TW-I408258, No. TW-I280952, No. TW-293056, No. CN-102527707, U.S. Patent The present invention is based on the state of the art and is not intended to limit the scope of the present invention.

In view of the above, in order to meet the above technical problems and needs, the present invention provides a divalent metal-iron/aluminum composite metal oxide electrode structure and a manufacturing method, wherein an electrode core layer and a composite metal electrode outer layer are disposed on a metal oxide electrode, and the electrode core layer and the composite metal electrode outer layer comprise a first metal material and a second composite metal material, and the composite metal is An outer layer of the electrode is disposed on the electrode core layer, and the first metal material and the second composite metal material are appropriately combined with a persulfate material to perform triclosan pollutants in a catalytic degradation or mineralization environment, and thus The conventional iron/aluminum composite metal oxide electrode structure and its manufacturing method can be applied to the treatment of triclosan pollutants in the environment.

The main object of the present invention is to provide a triclosan treatment system and a method thereof in soil, sediment and water, wherein a divalent metal-iron/aluminum composite metal oxidation electrode is disposed on a triclosan to be treated, and The divalent metal-iron/aluminum composite metal oxide electrode comprises an electrode core layer and a composite metal electrode outer layer, and the electrode core layer and the composite metal electrode outer layer comprise a first metal material and a second composite metal material, and The composite metal electrode outer layer is disposed on the electrode core layer, and the first metal material and the second composite metal material are appropriately combined with a persulfate material for catalytic degradation or triclosan pollution in the mineralized treatment environment. And achieve the efficacy of treating triclosan pollutants in the environment.

Another object of the present invention is to provide a divalent metal-iron/aluminum composite metal oxide electrode structure and a method for fabricating the same, wherein an electrode core layer and a composite metal electrode layer are disposed on a metal oxide electrode, and the electrode core layer and The outer layer of the composite metal electrode comprises a first metal material and a second composite metal material, and the outer layer of the composite metal electrode is disposed on the electrode core layer, and the first metal material and the second composite metal material are appropriately combined A sulphate material for catalytic degradation or mineralization of triclosan in a treated environment and achieving the efficacy of treating triclosan in the environment.

In order to achieve the above object, the preferred embodiment of the present invention in the soil, sediment and water body of the triclosan treatment system comprises: An electric power rectification device; a triclosan to be rectified, which is placed in the electrodynamic remediation device, and the triclosan to be rectified comprises a triclosan contaminant; at least one divalent metal-iron/aluminum composite a metal oxide electrode disposed in the electrochlorination device of the triclosan to be rectified, and the divalent metal-iron/aluminum composite metal oxide electrode comprises an inner core layer and an outer skin layer; an electrode core layer, the setting An inner core layer of the divalent metal-iron/aluminum composite metal oxide electrode, wherein the electrode core layer is made of a first metal material, and the first metal material is an aluminum-containing metal material; and a composite metal electrode outer layer And the outer layer of the composite metal electrode is made of a second composite metal material, and the second composite metal material is a divalent metal- An iron composite metal material; and a redox reaction region formed between the electrode core layer and the outer layer of the composite metal electrode; wherein the divalent metal-iron/aluminum composite metal is utilized in rectifying the triclosan to be rectified Oxidation electrode enhancement The ability of the sulfate radical to move, and the first metal material and the second composite metal material are appropriately combined with a persulfate material to appropriately perform catalytic degradation or mineralization treatment of the triclosan of the triclosan to be treated Things.

In order to achieve the above object, the method for treating triclosan in soil, sediment and water body according to a preferred embodiment of the present invention comprises: providing an electric power rectification device; and arranging a triclosan to be rectified into the electrodynamic rectification device And the triclosan to be treated comprises a triclosan contaminant; a divalent metal-iron/aluminum composite metal oxide electrode is disposed in the electrochlorination device of the triclosan to be rectified, and the divalent metal - the iron/aluminum composite metal oxide electrode comprises an electrode core layer and a composite metal electrode outer layer, and the electrode core layer is made of an aluminum-containing metal material, and the composite metal The outer layer of the electrode is made of a divalent metal-iron composite metal material; a redox reaction region is formed between the electrode core layer and the outer layer of the composite metal electrode; and the divalent metal-iron/aluminum composite metal oxide electrode is used for reinforcement The ability of a sulfate radical to move, and the aluminum-containing metal material and the divalent metal-iron composite metal material are appropriately combined with a persulfate material for proper catalytic degradation or mineralization treatment of the triclosan to be treated. Triclosan contaminants.

In order to achieve the above object, a divalent metal-iron/aluminum composite metal oxide electrode structure according to a preferred embodiment of the present invention comprises: a metal oxide electrode which is an anode, and the metal oxide electrode is used for electrodynamic soil or water [or Groundwater] remediation; an electrode core layer made of a first metal material, and the first metal material is an aluminum-containing metal material; and at least one composite metal electrode outer layer made of a second composite metal material And the second composite metal material is a divalent metal-iron composite metal material, and the outer layer of the composite metal electrode is disposed on the electrode core layer to form a divalent metal-iron/aluminum composite metal oxide electrode; The electrode core layer and the outer layer of the composite metal electrode constitute the metal oxide electrode, and the first metal material and the second composite metal material of the metal oxidation electrode are appropriately combined with a persulfate material for catalytic degradation or mineralization treatment environment. Triclosan contaminants.

In the preferred embodiment of the present invention, the outer layer of the composite metal electrode has a cobalt ferrite magnet structure or a cobalt iron oxide crystal structure.

In the preferred embodiment of the invention, the divalent metal-iron/aluminum composite metal oxide electrode is a cylinder or a flat cylinder.

In the preferred embodiment of the invention, the cylinder or the flat cylinder constitutes an electrode array.

The persulfate material of the preferred embodiment of the invention comprises Sodium sulfate material, potassium persulfate material, sulfated radical material or any combination thereof.

In order to achieve the above object, a method for manufacturing a divalent metal-iron/aluminum composite metal oxide electrode according to a preferred embodiment of the present invention comprises: pickling at least one first metal rod, and taking out the first metal rod, and the first The metal bar is made of an aluminum-containing metal material; the first metal bar is immersed in a second composite metal ion solution, and the first metal bar is taken out, and the second composite metal ion solution is a divalent metal- Iron metal ion solution; pre-baking the first metal rod; and subjecting the first metal rod to high temperature baking and calcining to form at least one second composite metal layer on the first metal rod to form a Divalent metal-iron/aluminum composite metal oxide electrode.

In the preferred embodiment of the invention, the first metal rod forms an electrode core layer, and the second composite metal layer covers the electrode core layer.

In the preferred embodiment of the present invention, the second composite metal layer forms a composite metal electrode outer layer, and the composite metal electrode outer layer is disposed on the electrode core layer.

In a preferred embodiment of the invention, another composite metal layer is formed on the second composite metal layer to form a multilayer composite metal layer.

The preferred embodiment of the present invention utilizes the divalent metal-iron/aluminum composite metal oxide electrode to enhance the free mobility of the monosulfate based on the environment.

1‧‧‧Metal Oxidation Electrode

1a‧‧‧Metal Oxidation Electrode

1'‧‧‧Metal Oxidation Electrode

10‧‧‧electrode core

11‧‧‧redox reaction zone

20‧‧‧Composite metal electrode outer layer

20a‧‧‧First composite metal electrode outer layer

20b‧‧‧Second composite metal electrode outer layer

Fig. 1 is a perspective view showing the structure of a divalent metal-iron/aluminum composite metal oxide electrode according to a first preferred embodiment of the present invention.

Fig. 2 is a flow chart showing a method for producing a divalent metal-iron/aluminum composite metal oxide electrode according to a preferred embodiment of the present invention.

Figure 3: Divalent metal-iron/aluminum composite metal in accordance with a preferred embodiment of the present invention The oxidation electrode structure is a schematic diagram showing the curve of the divalent metal concentration of the immersion liquid to the electrode coating rate.

Fig. 4 is a schematic view showing the X-ray diffraction analysis of the structure of the divalent metal-iron/aluminum composite metal oxide electrode of the preferred embodiment of the present invention.

Fig. 5 is a perspective view showing the structure of a divalent metal-iron/aluminum composite metal oxide electrode according to a second preferred embodiment of the present invention.

Figure 6 is a perspective view showing the structure of a divalent metal-iron/aluminum composite metal oxide electrode according to a third preferred embodiment of the present invention.

Fig. 7 is a perspective view showing the configuration of an electrode array of a divalent metal-iron/aluminum composite metal oxide electrode according to a third preferred embodiment of the present invention.

Figure 8 is a schematic view showing the flow of a method for treating triclosan in soil, sediment and water according to a preferred embodiment of the present invention.

In order to fully understand the present invention, the preferred embodiments of the present invention are described in detail below, and are not intended to limit the invention.

The preferred embodiment of the present invention is a triclosan treatment system and method thereof in soil, sediment and water body, and a divalent metal-iron/aluminum composite metal oxide electrode structure and a method for the soil remediation applied to various electrodynamic soils [ Sludge] remediation device, for example: electrodynamic soil (or water, environment) in-situ remediation device, but it is not intended to limit the scope of the invention. In addition, the divalent metal-iron/aluminum composite metal oxide electrode structure of the preferred embodiment of the present invention, the manufacturing method thereof and the method for the soil remediation are suitable for remediation treatment environment (for example, soil and bottom). The triclosan contaminant in mud or groundwater is not intended to limit the scope of application of the present invention.

In general, due to the widespread use of pharmaceuticals and personal care products (PPCSPS) by humans, it causes serious pollution in soil or underground water, among which triclosan [TCS, 5-chloro-2-(2, 4-Dichlorophenoxy)phenol is an emerging contaminant. Triclosan can be discharged from untreated discharge by treatment plants or through other routes It is often found in the soil and sediment because it has a high affinity for the soil. The advanced oxidation treatment methods for the degradation and mineralization of triclosan in the environment include photocatalysis, chemical oxidation (Fenton method, ozone method, etc.) and electrochemical methods. However, most of the chemical oxidation methods require the addition of additional chemicals to produce a large amount of sediment, and it is also necessary to consider whether the intermediate products produced by the remediation cause more serious secondary pollution.

The invention adopts the technical term 〝 divalent metal-iron/aluminum composite metal ruthenium to synthesize a composite metal of bismuth metal material and iron material and aluminum material bismuth or bismuth containing divalent metal material and ferrous material and aluminum alloy material. And samarium-cobalt-iron/aluminum composite metal ruthenium or ruthenium-containing cobalt-iron/aluminum composite metal ruthenium is exemplified, but it is not intended to limit the scope of the invention.

Fig. 1 is a perspective view showing the structure of a divalent metal-iron/aluminum composite metal oxide electrode according to a first preferred embodiment of the present invention. Referring to FIG. 1 , the divalent metal-iron/aluminum composite metal oxide electrode structure of the first preferred embodiment of the present invention comprises a metal oxide electrode 1, an electrode core 10 and a composite metal electrode. a composite metallic electrode shell layer 20, wherein the electrode core layer 10 is made of the first metal material, and the composite metal electrode outer layer 20 is made of the second composite metal material (ie, a cobalt-iron/aluminum composite metal material) Made of cobalt-iron/aluminum composite metal material or other divalent metal-iron/aluminum composite metal material. That is, the first metal material is disposed on the electrode core layer 10, and the second composite metal material is disposed on the composite metal electrode outer layer 20.

Referring to FIG. 1 again, for example, the metal oxide electrode 1 is a cylinder or an elongated rod, for example, a polygonal section elongated body or a gear shape. The laminated metal strip outer layer 20 is correspondingly disposed on the electrode core layer 10 to form a redox reaction region 11 between the electrode core layer 10 and the composite metal electrode outer layer 20.

Please refer to FIG. 1 again, for example, the electrode core layer 10 and the composite metal electrode outer layer 20 constitutes the metal oxide electrode 1, and the first metal material and the second composite metal material of the metal oxidation electrode 1 are appropriately combined with a persulfate material, for example, sodium persulfate material [SPS, Sodium Persulfate], potassium peroxosulfate (PMS, Potassium peroxymonosulfate), sulfated radical material or any combination thereof to properly catalyze the degradation or triclosan in the mineralized treatment environment.

2 is a schematic flow chart showing a manufacturing method of a divalent metal-iron/aluminum composite metal oxide electrode according to a preferred embodiment of the present invention, which comprises four main steps S1 to S4, but it is not intended to limit the sequence of steps of the present invention. The order of the steps of the preferred embodiment of the invention may be modified, divided, added, combined or reduced as appropriate without departing from the scope of the invention. Referring to FIGS. 1 and 2, for example, the metal oxide electrode 1 is manufactured by applying the method for producing a divalent metal-iron/aluminum composite metal oxide electrode shown in FIG.

Referring to FIG. 2, a method for manufacturing a divalent metal-iron/aluminum composite metal oxide electrode according to a preferred embodiment of the present invention includes a first step S1: first, at least one first metal rod (for example, a diameter of 5 or 10mm, 10cm long aluminum rod or other size specifications] pickled with an acidic solution (for example: diluted sulfuric acid solution, the ratio of sulfuric acid to water is 1:2) for a predetermined time (for example: about 6 minutes), And taking out the first metal rod.

Referring to FIG. 2 again, the manufacturing method of the divalent metal-iron/aluminum composite metal oxide electrode according to the preferred embodiment of the present invention comprises a second step S2: subsequently, the first metal rod is immersed in a second composite metal. An ionic solution (for example, a FeCl3 solution having a concentration of about 0.172 M or 0.86 M and a total solution of a CoCl 2‧H 2 O solution having a concentration of about 0.172 M, 0.36 M, 0.5 M, 0.75 M, 0.86 M, or 1.032 M) for a predetermined period of time and taken out The first metal rod has been impregnated.

Referring to FIG. 2 again, the manufacturing method of the divalent metal-iron/aluminum composite metal oxide electrode according to the preferred embodiment of the present invention includes the third step. S3: Next, the impregnated first metal rod is pre-baked at a predetermined temperature [about 105 ° C] for a predetermined time (for example, about 10 minutes) to obtain the dried first metal rod.

Referring to FIG. 2 again, the manufacturing method of the divalent metal-iron/aluminum composite metal oxide electrode according to the preferred embodiment of the present invention includes a fourth step S4: then, the dried first metal rod is at a predetermined temperature. [about 500 to 600 ° C, for example: 500 ° C, 550 ° C or 600 ° C] high temperature baking calcination for a predetermined time [eg, about 1 to 10 minutes] to form at least a second on the first metal rod Composite metal layer. In another preferred embodiment of the present invention, the first metal bar may be subjected to a final high temperature baking and calcination at a predetermined temperature [about 500 to 600 ° C] for a predetermined time (for example, about 60 minutes).

Referring to FIGS. 1 and 2 again, the first metal rod forms the electrode core layer 10, and the composite metal electrode outer layer 20 covers the electrode core layer 10. That is, the composite metal electrode outer layer 20 is disposed on the electrode core layer 10 to form a divalent metal-iron/aluminum composite metal oxide electrode. For example, the composite metal electrode outer layer 20 has a cobalt ferrite magnet structure, a cobalt iron oxide crystal structure (for example, a CoFe 2 O 4 crystal form) or other divalent metal ferrite magnet structure.

Referring to Figures 1 and 2, the divalent metal-iron/aluminum composite metal oxide electrode is used to enhance the mobility of the sulfate radical in the environment during the remediation of soil or water. Conducting triclosan contaminants in a catalytically degraded or mineralized environment.

Fig. 3 is a view showing the curve of the divalent metal-iron/aluminum composite metal oxide electrode structure of the preferred embodiment of the present invention using the divalent metal concentration of the impregnation liquid to the electrode coating rate. Referring to FIG. 3, in the preferred embodiment of the present invention, a cobalt-iron/aluminum composite metal oxide electrode is selectively prepared. As the cobalt concentration in the preparation liquid rises, the amount of cobalt coating on the surface of the electrode increases; when the cobalt concentration exceeds 0.86 M, the effective amount of cobalt coating starts to decrease, while the coating amount of iron is on. Rise. In addition, when the cobalt concentration in the preparation liquid reaches 0.75 M, the cobalt iron coating ratio reaches a maximum of 1.1; when the cobalt concentration is further increased to 0.86 M, the cobalt iron coating ratio is low.

Fig. 4 is a view showing a map of X-ray diffraction (XRD) analysis of a divalent metal-iron/aluminum composite metal oxide electrode structure according to a preferred embodiment of the present invention. Referring to FIG. 4, in a preferred embodiment of the present invention, a cobalt-iron/aluminum composite metal oxide electrode is selected and X-ray diffraction is applied to the coated iron-aluminum metal oxide by XRD crystal diffraction. After analysis, there are several strong characteristic peaks at 2θ=30.7, 36.5, 38, 55.6, and 65, which are the crystal structures of CoFe2O4 (JCPDS No: 00-022-1068), and their peaks correspond to the lattice planes respectively. The indices are (2 2 0), (3 1 1), (2 2 2), (4 0 0), (5 1 1), and (4 4 0).

Please refer to the third and fourth figures, and select the electrode cobalt concentration to be 0M, 0.172M, 0.43M, 0.86M, the preparation temperature is 600 ° C, the number of calcination times is 10 times, and the surface material crystal is prepared. The structure of the lattice was analyzed, and the structural peaks of CoFe2O4 crystals were compared with the characteristic peaks produced by the main CuFe2O4 cubic spinel structure at 2θ=36.5. When the cobalt concentration is 0M, there is no characteristic peak of spinel structure; when the cobalt concentration is increased to 0.172M, the characteristic peak waveform of 2θ=36.5 is disordered, that is, the crystal structure is more complicated; when the cobalt concentration is At 0.43M, the splitting characteristic peak disappears, that is, its crystal structure is formed relatively single; when the cobalt concentration is further increased to 0.86M, the characteristic peak intensity is improved, and the wave shape is sharper, that is, the stability of the crystal structure is improved.

Referring to Figures 3 and 4, the cobalt-iron/aluminum composite metal oxide electrode is used to enhance the freedom of movement of the sulfate based on the environment during the treatment of soil or water.

Fig. 5 is a perspective view showing the structure of a divalent metal-iron/aluminum composite metal oxide electrode according to a second preferred embodiment of the present invention, which corresponds to the divalent metal-iron/aluminum composite metal oxide electrode structure of Fig. 1. Please refer to section 5 As shown in the figure, the metal oxide electrode 1a of the second preferred embodiment of the present invention comprises an electrode core layer 10, a first composite metal electrode outer layer 20a and a second composite metal electrode outer layer 20b.

Referring to FIGS. 2 and 5 again, the metal oxide electrode 1a of the second preferred embodiment of the present invention may repeat the first step S1 to the fourth step S4 several times (for example, 10 times), as shown in FIG. Show. The second composite metal electrode outer layer 20b is formed on the first composite metal electrode outer layer 20a to form a multilayer composite metal layer. Finally, the first metal bar may be subjected to a final high temperature baking and calcination at a predetermined temperature [about 500 to 600 ° C] for a predetermined time (for example, about 60 minutes).

Fig. 6 is a perspective view showing the structure of a divalent metal-iron/aluminum composite metal oxide electrode according to a third preferred embodiment of the present invention, which corresponds to the structure of the divalent metal-iron/aluminum composite metal oxide electrode of Fig. 1. Referring to FIG. 6, the metal oxide electrode 1' of the third preferred embodiment of the present invention comprises an electrode core layer 10 and a composite metal electrode outer layer 20, and the metal oxide electrode 1' is opposite to the first embodiment. It is a flat cylinder to increase the formation of a redox reaction region 11 between the electrode core layer 10 and the composite metal electrode outer layer 20.

FIG. 7 is a perspective view showing the electrode array of the divalent metal-iron/aluminum composite metal oxide electrode according to the third preferred embodiment of the present invention, which corresponds to the divalent metal-iron/aluminum composite metal oxide electrode of FIG. structure. Referring to FIG. 7 , a plurality of the metal oxide electrodes 1 ′ are selected to form a flat cylindrical electrode array at a predetermined arrangement pitch, so as to configure different numbers of the metal oxide electrodes 1 ′ according to different requirements, and can be accommodated. In an electrodynamic soil site remediation device or an electrodynamic soil remediation tank.

Referring to Figures 1, 5 and 7, again, a plurality of the metal oxide electrodes 1 or 1a are selected to form a cylindrical electrode array at a predetermined arrangement pitch, and the cylindrical electrode array or the flat cylinder electrode The array can be arranged to form an array of electrodes of various shapes. Or, another preferred embodiment of the invention The embodiment may optionally combine a plurality of the metal oxide electrodes 1 or 1a and a plurality of the metal oxide electrodes 1' to form a mixed electrode array.

Figure 8 is a flow chart showing the process of treating triclosan in soil, sediment and water in a preferred embodiment of the present invention. Referring to Figures 1 and 8, the method for treating triclosan in soil, sediment and water body according to a preferred embodiment of the present invention comprises the step S1: First, an electrodynamic remediation device is provided (for example, an electrodynamic soil remediation device) , electric power soil site remediation device, electric power bottom mud remediation device, electric power bottom mud site remediation device, electric power water remediation device or electric power environment site remediation device) or an electric power remediation system.

Referring to Figures 1 and 8, the method for treating triclosan in soil, sediment and water body according to a preferred embodiment of the present invention comprises the step S2: Next, a triclosan is to be rectified (for example: water, groundwater) The body, the soil, the sediment or the sludge is placed in the electric power remediation device, and the triclosan to be treated contains a triclosan contaminant.

Referring to Figures 1 and 8, the method for treating triclosan in soil, sediment and water body according to a preferred embodiment of the present invention comprises the step S3: subsequently, the divalent metal-iron/aluminum composite metal oxide electrode or The metal oxide electrode 1 is disposed on the triclosan to be rectified in the electrodynamic curing device, and the divalent metal-iron/aluminum composite metal oxide electrode comprises the electrode core layer 10 and the composite metal electrode outer layer 20, and the electrode core layer 10 is made of an aluminum-containing metal material, and the composite metal electrode outer layer 20 is composed of a divalent metal-iron composite metal material (for example: cobalt-iron/aluminum composite metal material, cobalt-iron/aluminum composite metal material or Other divalent metal-iron/aluminum composite metal materials are made.

Referring to Figures 1 and 8, the method for treating triclosan in soil, sediment and water body according to a preferred embodiment of the present invention comprises the step S4: then, in the operation of the triclosan rectification treatment, in the electrode core layer A redox reaction region 11 is formed between the 10 and the composite metal electrode outer layer 20 (shown by a broken line in Fig. 1).

Referring to Figures 1 and 8, the method for treating triclosan in soil, sediment and water body according to a preferred embodiment of the present invention comprises the step S5: subsequently, using the divalent metal-iron/aluminum composite metal oxide electrode or The metal oxide electrode 1 enhances the mobility of the monosulfate radical, and appropriately combines the persulfate material with the aluminum-containing metal material and the divalent metal-iron composite metal material to appropriately perform catalytic degradation or mineralization treatment. The triclosan contaminant of the chlorine sand to be rectified.

The foregoing preferred embodiments are merely illustrative of the invention and the technical features thereof, and the techniques of the embodiments can be carried out with various substantial equivalent modifications and/or alternatives; therefore, the scope of the invention is subject to the appended claims. The scope defined by the scope shall prevail. The copyright limitation of this case is used for the purpose of patent application in the Republic of China.

Claims (10)

A triclosan treatment system in soil, sediment and water body, comprising: an electric power rectification device; a triclosan to be rectified, which is placed in the electrodynamic remediation device, and the triclosan is to be rectified The invention comprises a triclosan contaminant; at least one divalent metal-iron/aluminum composite metal oxide electrode, which is disposed in the electrochlorination device, the triclosan to be rectified, and the divalent metal-iron/aluminum composite metal oxide The electrode comprises an inner core layer and an outer skin layer; an electrode core layer disposed on the inner core layer of the divalent metal-iron/aluminum composite metal oxide electrode, and the electrode core layer is made of a first metal material. And the first metal material is an aluminum-containing metal material; a composite metal electrode outer layer is disposed on the outer surface of the divalent metal-iron/aluminum composite metal oxide electrode, and the composite metal electrode outer layer is composed of a second composite metal Made of a material, and the second composite metal material is a divalent metal-iron composite metal material; and a redox reaction region formed between the electrode core layer and the outer layer of the composite metal electrode; wherein the third is rectified Chlorhexaside When the object, using the first metallic material and the second composite material suitable combination of a metal persulfate material in order to appropriately triclosan contaminant mineralization process or catalytic degradation the regulation thereof be of triclosan. The triclosan treatment system in soil, sediment and water body according to claim 1 of the patent application, wherein the outer layer of the composite metal electrode has a cobalt ferrite magnet structure or a cobalt ferrosilicon crystal structure. The triclosan treatment system in soil, sediment and water body according to claim 1 of the patent application scope, wherein the divalent metal-iron/aluminum composite metal oxidation electrode is a cylinder or a flat cylinder. The triclosan treatment system in soil, sediment and water body according to item 3 of the patent application scope, wherein the cylinder or the flat cylinder constitutes an electrode array. According to the scope of the patent application, in the soil, sediment and water body A sulphate treatment system wherein the persulfate material comprises sodium persulfate material, potassium persulfate material, sulfated radical material, or any combination thereof. A method for treating triclosan in soil, sediment and water body, comprising: providing an electric power rectification device; arranging a triclosan to be rectified into the electrodynamic rectification device, and the triclosan is to be rectified The invention comprises a triclosan contaminant; a divalent metal-iron/aluminum composite metal oxidation electrode is disposed on the triclosan to be rectified in the electrodynamic rectification device, and the divalent metal-iron/aluminum composite metal oxidation electrode comprises An electrode core layer and a composite metal electrode outer layer, wherein the electrode core layer is made of an aluminum-containing metal material, and the composite metal electrode outer layer is made of a divalent metal-iron composite metal material; Forming a redox reaction region between the outer layer of the composite metal electrode; and appropriately combining the persulfate material with the aluminum-containing metal material and the divalent metal-iron composite metal material for proper catalytic degradation or mineralization treatment The triclosan contaminant of the chlorine sand to be rectified. The method for treating triclosan in soil, sediment and water according to item 6 of the patent application scope, wherein the divalent metal-iron composite metal material is a cobalt-iron composite metal material. The method for treating triclosan in soil, sediment and water according to item 6 of the patent application scope, wherein the outer layer of the composite metal electrode is disposed on the electrode core layer. The method for treating triclosan in soil, sediment and water according to claim 6 of the patent application, wherein another composite metal layer is formed on the outer layer of the composite metal electrode to form a multilayer composite metal layer. The method for treating triclosan in soil, sediment and water according to item 6 of the patent application scope, wherein the divalent metal-iron/aluminum composite metal oxide electrode is used to enhance the free movement of the monosulfate based on the environment.