Treatment system for removing antimony pollution in water by micro-electrolysis of iron-manganese-carbon composite filler

Abstract

The utility model relates to a treatment system for removing antimony pollution in water through iron-manganese-carbon composite filler micro-electrolysis. The method is suitable for antimony pollution treatment. According to the technical scheme, the treatment system for removing antimony pollution in water through iron-manganese-carbon composite filler micro-electrolysis is characterized by comprising a reaction container, a bearing plate is arranged at the bottom of the reaction container, water distribution holes are evenly distributed in the bearing plate, a water distribution area is formed below the bearing plate, and an iron-manganese-carbon composite filler layer and a ceramsite layer are sequentially arranged above the bearing plate; a water inlet communicated with the water distribution area in the reaction container and a water outlet positioned above the ceramsite layer are formed in the side wall of the reaction container; the antimony-containing wastewater storage tank is communicated with the water inlet of the reaction container through a water conveying pipeline, and a peristaltic pump is mounted on the water conveying pipeline. According to the device disclosed by the utility model, the iron-manganese composite double hydroxides can be formed under the condition of non-chemical addition on the premise of no power supply and no energy consumption, so that the Sb (V) removal effect of the traditional micro-electrolysis reaction is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of iron manganese carbon composite filler micro-electrolysis removal of antimony pollution in water processing system.It is applicable to antimony pollution processing field. BACKGROUND

[0002] Antimony (antimony, Sb), is a silvery white brittle metal, atomic number 51, relative atomic mass is 121.8, presents scale flake crystal structure.Sb mainly has three valences, is trivalent, pentavalent and negative trivalent, among them, Sb in surface water is mainly Sb (V).Antimony and its compounds have toxicity, and different valence Sb has different toxicity.A small amount of Sb intake can cause poisoning, and soluble antimony compounds are easy to combine with the sulfhydryl in human body, leading to cell hypoxia.According to literature report, acute antimony poisoning can cause metabolic disorder, damage heart, liver, lung and other organs, and even lead to death.Chronic antimony poisoning can cause limbs ache, emaciation, headache, dizziness, insomnia, anemia.

[0003] China is the largest antimony and its compounds producing country in the world.Sb is widely used, involves metallurgy, textile, semiconductor, ceramic, medicine, chemical industry and other industries.In the development and application of Sb, a large amount of antimony pollutants are discharged into atmosphere, soil and aquatic ecosystem.Antimony pollution not only causes water quality deterioration in river basin, harms ecological environment, but also affects people's health and drinking water safety, and brings serious economic losses.Therefore, exploring an economic and effective antimony removal method has important significance for treating the increasingly serious antimony pollution. SUMMARY

[0004] The utility model solves the technical problems in the prior art that: in view of the above problems, provide a kind of iron manganese carbon composite filler micro-electrolysis removal of antimony pollution in water processing system.

[0005] The utility model employs the technical scheme that: a kind of iron manganese carbon composite filler micro-electrolysis removal of antimony pollution in water processing system, characterized by comprising:

[0006] Reaction container, the reaction container bottom is equipped with the support plate of uniform distribution water hole, and the water distribution area is formed in the support plate lower side, and the iron manganese carbon composite filler layer and the ceramsite layer are sequentially equipped on the support plate upper side;The side wall of the reaction container is equipped with the water inlet that is communicated with the water distribution area in it, and the water outlet located above the ceramsite layer;

[0007] Antimony-containing wastewater storage tank, the water inlet of the reaction container is communicated by water delivery pipeline, and peristaltic pump is mounted on water delivery pipeline.

[0008] The iron manganese carbon composite filler layer has carbon particle, iron chip particle, manganese chip particle.

[0009] The particle size of the carbon particles, iron filings and manganese filings is between 4mm and 8mm.

[0010] The volume ratio of the carbon particles, iron filings and manganese filings in the iron-manganese-carbon composite filler layer is between 1:1:1 and 2:1:0.5.

[0011] The iron-manganese-carbon composite filler layer has carbon modules, iron modules and manganese modules, and each of the modules has a module box, the module box is uniformly provided with water permeable holes, and the module box is filled with corresponding carbon particles, iron filings or manganese filings.

[0012] The lower end of the module box is provided with a first joint, and the upper end of the module box is provided with a second joint capable of cooperating with the first joint to realize connection.

[0013] The upper surface of the supporting plate is uniformly provided with the second joint.

[0014] The beneficial effects of the utility model are: in the utility model, after the antimony-containing wastewater enters the iron-manganese-carbon composite filler layer, under the joint action of the carbon particles, iron filings and manganese filings, iron-carbon, manganese-carbon and iron-manganese multi-element micro primary batteries are formed, in the iron-manganese-carbon micro electrolysis reaction, part of Sb(V) is removed by the iron-manganese composite double hydroxide floc with good adsorption performance generated by the reaction, and another part is reduced to Sb(III), and Sb(OH)3 precipitate is generated in the coagulation process and removed through the adsorption and co-precipitation reaction of the floc.

[0015] The utility model can realize the formation of the iron-manganese composite double hydroxide without adding drugs under the premise of no power supply and no energy consumption, so as to improve the Sb(V) removal effect of the traditional micro electrolysis reaction.

[0016] In the utility model, the carbon particles, iron filings and manganese filings are respectively filled in the corresponding module boxes, so that the filler replacement is facilitated. DETAILED DESCRIPTION

[0017] Figure 1 It is a structural schematic view of the embodiment 1.

[0018] Figure 2 It is a Sb removal effect diagram of the antimony-containing wastewater in the embodiment 1.

[0019] Figure 3 It is a structural schematic view of the reaction container in the embodiment 2.

[0020] Figure 4 It is a transverse sectional view of the reaction container in the embodiment 2.

[0021] 1, carbon particles; 2, iron filings particles; 3, manganese filings particles; 4, ceramic particles; 5, water outlet; 6, supporting plate; 7, peristaltic pump; 8, water distribution area; 9, ceramic particle module; 10, small size module box; 11, medium size module box; 12, large size module box. DETAILED DESCRIPTION

[0022] In order to better understand the technical solutions of the present application, the embodiments of the present application are described in detail below in conjunction with the drawings.

[0023] The terms used in the embodiments of the present application are merely for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0024] It should be noted that the "up", "down", "left", "right" and other orientation words described in the embodiments of the present application are described in the angle shown in the drawings, and should not be understood as a limitation of the embodiments of the present application. In addition, in the context, it is also understood that when referring to an element connected to another element "on" or "below", it can be directly connected to another element "on" or "below", or indirectly connected to another element "on" or "below" through an intermediate element.

[0025] Embodiment 1: The present embodiment provides a kind of iron manganese carbon composite filler micro-electrolysis to remove antimony pollution in water processing system, including reaction container, antimony-containing wastewater storage tank, water pipeline and peristaltic pump etc.

[0026] In the example, the bottom of the reaction container is provided with a supporting plate, which is uniformly covered with drainage holes. The supporting plate divides the reaction container into a water distribution area below the supporting plate and a reaction area above the supporting plate. The reaction area is sequentially provided with an iron-manganese-carbon composite filler layer and a ceramic particle layer from bottom to top.

[0027] In the present embodiment, the iron-manganese-carbon composite filler layer is composed of carbon particles, iron filings particles and manganese filings particles. The carbon particles, iron filings particles and manganese filings particles are irregular in shape and have a particle size of 4mm to 8mm. The volume ratio of carbon particles, iron filings particles and manganese filings particles in the iron-manganese-carbon composite filler layer is between 1:1:1 and 2:1:0.5. In the example, the ceramic particle layer is composed of a large number of ceramic particles uniformly laid on the top of the iron-manganese-carbon composite filler layer.

[0028] In the example, the reaction container is provided with a water inlet and a water outlet communicating with the inside of the reaction container. The water inlet communicates with the water distribution area in the reaction container, and the water outlet is located above the ceramic particle layer in the reaction container.

[0029] The antimony-containing wastewater storage tank in the embodiment is connected to the water inlet of the reaction container through a water conveying pipeline, and a peristaltic pump is arranged on the water conveying pipeline.

[0030] In the embodiment, the antimony-containing wastewater is sent to the water distribution area in the reaction container through the peristaltic pump, enters the reaction area through the water distribution holes on the supporting layer, and forms iron-carbon, manganese-carbon and iron-manganese multi-element micro primary cells under the joint action of carbon particles, iron particles and manganese particles. In the iron-manganese-carbon micro-electrolysis reaction, part of Sb(V) is removed by the iron-manganese composite double hydroxide floc with good adsorption performance generated by the reaction, and the other part is reduced to Sb(III), which generates Sb(OH)3 precipitate in the coagulation process and is removed through adsorption and co-precipitation of the floc.

[0031] Table 1 is the BET specific surface area of the iron-manganese floc and the iron floc, and it can be seen that the BET specific surface area of the iron-manganese floc is significantly greater than that of the iron floc.

[0032] Table 1

[0033] Sample BET specific surface area (m 2 / g) Iron-manganese floc (manganese content 14.29%) 130.79 Iron-manganese floc (manganese content 25%) 121.36 Iron floc 117.67

[0034] Embodiment 2: The structure of the embodiment is basically the same as that of Embodiment 1, and the only difference is that in this example, the ceramsite layer has a plurality of ceramsite modules, the iron-manganese-carbon composite filler layer has a plurality of carbon modules, iron modules and manganese modules, and the ceramsite modules, carbon modules, iron modules and manganese modules all have module box bodies, the module box bodies are uniformly covered with water-permeable holes, the module box bodies of the ceramsite modules are filled with ceramsite, the module box bodies of the carbon modules are filled with carbon particles, the module box bodies of the iron modules are filled with iron particles, and the module box bodies of the manganese modules are filled with manganese particles.

[0035] In this example, a first connector (such as a plug) is arranged at the lower end of the module box body, and a second connector (such as a slot) capable of cooperating with the first connector to achieve connection is arranged at the upper end of the module box body; the second connectors are uniformly arranged on the upper surface of the supporting plate. The carbon modules, iron modules and manganese modules can be connected by cooperating the first connectors with the second connectors on the supporting plate below.

[0036] In this embodiment, the carbon particles, iron particles and manganese particles are placed in the module box body, so that a certain particle of the carbon particles, iron particles and manganese particles can be replaced individually when it reaches the service life.

[0037] In this embodiment, the module box bodies of the carbon modules, iron modules and manganese modules are distinguished by different colors, and the module box bodies of the carbon modules, iron modules and manganese modules have large, medium and small sizes. A batch of small-sized module box bodies are arranged on the supporting plate first, a medium-sized module box body is arranged above each small-sized module box body one by one, a large-sized module box body is arranged above each medium-sized module box body one by one, and then small, medium and large module box bodies are arranged in turn and repeatedly.

[0038] The embodiment forms a large number of overflow gaps in the reaction container through the large, medium and small size module boxes, increases the contact area of the antimony-containing wastewater with the carbon module, the iron module and the manganese module and the like, and improves the removal capacity of the antimony pollution.

[0039] The above only is the preferred embodiment of the application, and is not used to limit the application, and the application can have various changes and changes for the person skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A treatment system for removing antimony pollution in water by iron-manganese-carbon composite filler micro-electrolysis, characterized in that, The application relates to a reaction container for treating antimony-containing wastewater. The reaction container is provided with a supporting plate with uniformly distributed water distribution holes at the bottom, a water distribution area is formed below the supporting plate, and an iron-manganese-carbon composite filler layer and a ceramsite layer are sequentially arranged above the supporting plate; the side wall of the reaction container is provided with a water inlet communicated with the water distribution area in the reaction container and a water outlet located above the ceramsite layer; An antimony-containing wastewater storage tank is connected to the water inlet of the reaction container through a water conveying pipeline, and a peristaltic pump is arranged on the water conveying pipeline.

2. The treatment system for removing antimony pollution in water by iron-manganese carbon composite filler micro-electrolysis according to claim 1, characterized in that: The iron-manganese-carbon composite filler layer is provided with carbon particles, iron scrap particles and manganese scrap particles.

3. The treatment system for removing antimony pollution in water by iron-manganese carbon composite filler micro-electrolysis according to claim 2, characterized in that: The particle size of the carbon particles, the iron scrap particles and the manganese scrap particles is between 4 mm and 8 mm.

4. The treatment system for removing antimony pollution in water by iron-manganese carbon composite filler micro-electrolysis according to claim 2, characterized in that: The volume ratio of the carbon particles, the iron scrap particles and the manganese scrap particles in the iron-manganese-carbon composite filler layer is between 1:1:1 and 2:1:0.

5.

5. The treatment system for removing antimony pollution in water by iron-manganese carbon composite filler micro-electrolysis according to claim 1, characterized in that: The iron-manganese-carbon composite filler layer is provided with a plurality of carbon modules, iron modules and manganese modules, each of the modules is provided with a module box, water permeable holes are uniformly distributed on the module box, and the module box is filled with corresponding carbon particles, iron scrap particles or manganese scrap particles.

6. The treatment system for removing antimony pollution in water by iron-manganese carbon composite filler micro-electrolysis according to claim 5, characterized in that: The lower end of the module box is provided with a first joint, and the upper end of the module box is provided with a second joint capable of being matched with the first joint to realize connection.

7. The treatment system for removing antimony pollution in water by iron-manganese carbon composite filler micro-electrolysis according to claim 6, characterized in that: The second joints are uniformly distributed on the upper surface of the supporting plate.

8. The treatment system for removing antimony pollution in water by iron-manganese carbon composite filler micro-electrolysis according to claim 5, characterized in that: The module boxes have multiple sizes, and the sizes of the module boxes are sequentially increased from bottom to top and arranged in a cycle at least once.

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