CN219058772U - Modular electro-active persulfate oxidation device - Google Patents

Abstract

The utility model relates to a modular electro-active persulfate oxidation device, and belongs to the technical field of sewage treatment. The device comprises a water inlet pump, a medicament mixer, a modularized electrode reactor, a solid-liquid separator, an infusion pump and a reduction stabilizing bed, wherein the water inlet pump is connected with the medicament mixer through a pipeline, the medicament mixer is connected with the liquid inlet end of the modularized electrode reactor through a pipeline, the medicament mixer is connected with a persulfate oxidizer delivery pipe, the liquid outlet end of the modularized electrode reactor is connected with the inlet of the solid-liquid separator through a pipeline, and the outlet of the solid-liquid separator is connected with the inlet of the reduction stabilizing bed through the infusion pump and the pipeline; at least three electrode plates which are arranged in a staggered mode are arranged in the modularized electrode reactor. The modular electro-active persulfate oxidation device provided by the utility model has strong oxidation removal capability on organic matters, good stability and wide pH value range of the organic wastewater suitable for treatment.

Description

Modular electro-active persulfate oxidation device

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a modular electro-active persulfate oxidation device.

Background

Aiming at organic pollutants which are difficult to degrade, in particular to unsaturated ring organic matters (such as antibiotics, endocrine disruptors and the like), an oxidation device or an electric flocculation device is mostly adopted to treat organic wastewater at present. The existing oxidation device has poor stability and strict requirement on the pH value of organic wastewater. The existing electric flocculation device has good removal effect on suspended matters and oils in wastewater, but the existing electric flocculation device has the defect of weak oxidation capability and weak oxidation removal capability on organic matters.

Therefore, it is very necessary to design a modular electro-active persulfate oxidation device with strong oxidation removal capability and good stability for organic matters.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a modular electro-active persulfate oxidation device with strong oxidation removal capability and good stability for organic matters.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a modular electro-active persulfate oxidation device, includes intake pump, medicament blender, modularization electrode reactor, solid-liquid separator, infusion pump, reduction stabilization bed, the intake pump with the medicament blender passes through the pipeline to be connected, the medicament blender passes through the pipeline to be connected with the feed liquor end of modularization electrode reactor, the medicament blender is connected with persulfate oxidizer conveyer pipe, the liquid outlet end of modularization electrode reactor passes through the pipeline to be connected with the entry of solid-liquid separator, the export of solid-liquid separator passes through infusion pump and pipeline with the import of reduction stabilization bed is connected; at least three electrode plates are arranged in the modularized electrode reactor, the electrode plates are orderly staggered in the direction from the liquid inlet end to the liquid outlet end, and a serpentine channel is formed in the modularized electrode reactor.

The modular electro-active persulfate oxidation device provided by the utility model has strong oxidation removal capability on organic matters, good stability and wide pH value range of the organic wastewater suitable for treatment. After the organic wastewater and the persulfate oxidizer are mixed in the medicament mixer, the mixed organic wastewater and the persulfate oxidizer are conveyed into the modularized electrode reactor under the action of the liquid inlet pump, and water flow in the modularized electrode reactor is in serpentine flow from the liquid inlet end to the liquid outlet end, so that the organic wastewater and the persulfate oxidizer can fully react, and the oxidation removal capacity of the device on refractory organic matters in the organic wastewater is improved; the oxidized wastewater enters a solid-liquid separator, and the separation of the wastewater and the sediment is realized under the action of alkali and a precipitator; the wastewater discharged from the solid-liquid separator after the sedimentation treatment is input into a reduction stabilizing bed through an infusion pump, and the wastewater after the sedimentation treatment is subjected to reduction treatment through the reduction stabilizing bed, so that residual persulfate in the wastewater can be effectively reduced and removed, the residual persulfate in the effluent is avoided, and the influence on the subsequent treatment or the effluent quality caused by the residual persulfate is avoided.

As a preferred embodiment of the present utility model, the electrode plate is a metal electrode plate or an electrode plate having a metal layer on a surface thereof.

As a preferred embodiment of the utility model, the modular electrode reactor is powered by a dc power supply.

As a preferred embodiment of the utility model, the modularized electrode reactor is a fully-closed modularized electrode reactor, the liquid inlet end is positioned at the bottom of the modularized electrode reactor, and the liquid outlet end is positioned at the top of the modularized electrode reactor.

Compared with an open-type modularized electrode reactor, the fully-closed modularized electrode reactor can operate for a long time, electrode plates are not easy to passivate, and the power consumption for operation is low.

As a preferred embodiment of the utility model, the solid-liquid separator is divided into a liquid inlet area and a solid-liquid separation area, a partition plate is arranged between the liquid inlet area and the solid-liquid separation area, a communication port is arranged at the lower end of the partition plate, the liquid inlet area is communicated with the solid-liquid separation area through the communication port, the inlet is arranged at the top of the liquid inlet area, and the outlet is arranged at the upper part of the solid-liquid separation area.

Further, a solid-liquid separation packing layer is arranged in the solid-liquid separation area, the solid-liquid separation packing layer is inclined pipe packing or inclined plate packing, and the outlet is positioned above the solid-liquid separation packing layer. The solid-liquid separation filler layer can effectively block sediment and avoid sediment being discharged along with liquid during liquid discharge.

As a preferred embodiment of the present utility model, the reducing agent packing layer is disposed in the reducing stabilizing bed, the inlet is located below the reducing agent packing layer, and the water outlet of the reducing stabilizing bed is located above the reducing agent packing layer.

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, at least three electrode plates are arranged in the modularized electrode reactor, the electrode plates are orderly staggered in the direction from the liquid inlet end to the liquid outlet end, and water flow in the modularized electrode reactor is in serpentine flow in the direction from the liquid inlet end to the liquid outlet end, so that organic wastewater and persulfate oxidizer can fully react, and the oxidation removal capacity of the device on refractory organic matters in the organic wastewater is improved;

(2) The utility model carries out precipitation treatment on the oxidized wastewater through a solid-liquid separator, and separates out precipitate;

(3) According to the utility model, the reduction stabilization bed is used for carrying out reduction treatment on the wastewater after the precipitation treatment, so that the residual persulfate in the wastewater can be effectively reduced and removed, the residual persulfate in the effluent is avoided, and the influence on the subsequent treatment or the effluent quality caused by the residual persulfate is avoided;

(4) The organic wastewater treatment device has strong oxidizing and removing capacity to organic matters, good stability, high treatment efficiency to organic wastewater and wide pH value range of the organic wastewater suitable for treatment.

Drawings

Fig. 1 is a schematic structural diagram of a modular electro-active persulfate oxidation device provided by the utility model.

Detailed Description

For a better description of the objects, technical solutions and advantages of the present utility model, the present utility model will be further described with reference to the following specific examples.

This embodiment provides a modular electro-active persulfate oxidation device, the structure of which is shown in fig. 1.

The modular electro-active persulfate oxidation device comprises a water inlet pump 1, a medicament mixer 2, a modularized electrode reactor 3, a solid-liquid separator 4, an infusion pump 5 and a reduction stabilizing bed 6, wherein the water inlet pump 1 is connected with the medicament mixer 2 through a pipeline, the medicament mixer 2 is connected with the liquid inlet end of the modularized electrode reactor 3 through a pipeline, the medicament mixer 2 is connected with a persulfate oxidizer conveying pipe, the liquid outlet end of the modularized electrode reactor 3 is connected with the inlet of the solid-liquid separator 4 through a pipeline, and the outlet of the solid-liquid separator 4 is connected with the inlet of the reduction stabilizing bed 6 through the infusion pump 5 and the pipeline.

At least three electrode plates 31 are arranged in the modularized electrode reactor 3, the electrode plates 31 are orderly staggered from the liquid inlet end to the liquid outlet end, and a serpentine channel 32 is formed in the modularized electrode reactor 31; the electrode plate 31 is a metal electrode plate or an electrode plate having a metal layer on the surface; the modularized electrode reactor 3 is powered by a direct current power supply 7; the modularized electrode reactor 3 is a fully-closed modularized electrode reactor, the liquid inlet end is positioned at the bottom of the modularized electrode reactor 3, and the liquid outlet end is positioned at the top of the modularized electrode reactor 3. The water flow in the modularized electrode reactor 3 presents serpentine flow from the liquid inlet end to the liquid outlet end, so that the organic wastewater and the persulfate oxidizer can fully react, and the oxidation removal capacity of the device on refractory organic matters in the organic wastewater is improved. Compared with an open-type modularized electrode reactor, the fully-closed modularized electrode reactor can operate for a long time, electrode plates are not easy to passivate, and the power consumption for operation is low.

The solid-liquid separator 4 is divided into a liquid inlet area 41 and a solid-liquid separation area 42, a partition plate 43 is arranged between the liquid inlet area 41 and the solid-liquid separation area 42, a communication port is arranged at the lower end of the partition plate 43, the liquid inlet area 41 is communicated with the solid-liquid separation area 42 through the communication port, the inlet is arranged at the top of the liquid inlet area 41, and the outlet is arranged at the upper part of the solid-liquid separation area 42; the solid-liquid separation area 42 is internally provided with a solid-liquid separation packing layer 44, the solid-liquid separation packing layer 44 is a pipe chute packing or an inclined plate packing, and the outlet is positioned above the solid-liquid separation packing layer 44.

A reducing agent packing layer 61 is arranged in the reducing stabilizing bed 6, the inlet is positioned below the reducing agent packing layer 61, and the water outlet of the reducing stabilizing bed 6 is positioned above the reducing agent packing layer 61.

The flow of wastewater treatment by using the modular electro-active persulfate oxidation device provided by the embodiment is as follows:

the organic wastewater is conveyed to a medicament mixer 2 through a pipeline and a water inlet pump 1, persulfate oxidant is mixed with the organic wastewater in the medicament mixer 2, and the mixture is lifted to a modularized electrode reactor 3 under the action of the water inlet pump 1; under the action of current, organic matters in the organic wastewater react with persulfate oxidizer, and the reacted liquid is discharged from a liquid outlet end at the top of the modularized electrode reactor 3 and enters a solid-liquid separator 4; adding alkali, polyaluminium chloride and polyacrylamide into the solid-liquid separator 4, controlling the pH value of wastewater in the solid-liquid separator 4 to be 8-10, generating precipitate under the combined action of the alkali, the polyaluminium chloride and the polyacrylamide, blocking the generated precipitate by the solid-liquid separation filler layer 44, and discharging the wastewater through an outlet of the solid-liquid separator 4; the discharged wastewater enters a reduction stabilizing bed 6 through an infusion pump 5, further reacts with a reducing agent filler, removes residual persulfate oxidizer in the wastewater, and finally discharges effluent.

The modular electro-active persulfate oxidation device provided by the embodiment has strong oxidation removal capability to organic matters, good stability and wide pH value range of the adaptive organic wastewater, and the pH value of the device does not need to be strictly controlled when the organic wastewater is treated.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally formed, for example; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted equally without departing from the spirit and scope of the technical solution of the present utility model.

Claims (7)

1. The modular electro-active persulfate oxidation device is characterized by comprising a water inlet pump, a medicament mixer, a modular electrode reactor, a solid-liquid separator, an infusion pump and a reduction stabilizing bed, wherein the water inlet pump is connected with the medicament mixer through a pipeline, the medicament mixer is connected with a persulfate oxidizer delivery pipe, the medicament mixer is connected with a liquid inlet end of the modular electrode reactor through a pipeline, a liquid outlet end of the modular electrode reactor is connected with an inlet of the solid-liquid separator through a pipeline, and an outlet of the solid-liquid separator is connected with an inlet of the reduction stabilizing bed through the infusion pump and the pipeline; at least three electrode plates are arranged in the modularized electrode reactor, the electrode plates are orderly staggered in the direction from the liquid inlet end to the liquid outlet end, and a serpentine channel is formed in the modularized electrode reactor.

2. The modular electro-active persulfate oxidation apparatus according to claim 1, wherein the electrode plate is a metal electrode plate or an electrode plate having a metal layer on a surface thereof.

3. The modular electro-active persulfate oxidation apparatus of claim 1, wherein the modular electrode reactor is powered by a dc power supply.

4. The modular electro-active persulfate oxidation apparatus of claim 1, wherein the modular electrode reactor is a fully enclosed modular electrode reactor, wherein the liquid inlet end is positioned at the bottom of the modular electrode reactor and the liquid outlet end is positioned at the top of the modular electrode reactor.

5. The modular electro-active persulfate oxidation device according to claim 1, wherein the solid-liquid separator is divided into a liquid inlet area and a solid-liquid separation area, a partition plate is arranged between the liquid inlet area and the solid-liquid separation area, a communication port is arranged at the lower end of the partition plate, the liquid inlet area is communicated with the solid-liquid separation area through the communication port, the inlet is arranged at the top of the liquid inlet area, and the outlet is arranged at the upper part of the solid-liquid separation area.

6. The modular electro-active persulfate oxidation apparatus according to claim 5, wherein a solid-liquid separation packing layer is disposed in the solid-liquid separation zone, the solid-liquid separation packing layer is a pipe chute packing or a sloping plate packing, and the outlet is located above the solid-liquid separation packing layer.

7. The modular electro-active persulfate oxidation apparatus of claim 1, wherein a reducing agent packing layer is disposed within the reducing stabilization bed, wherein the inlet is positioned below the reducing agent packing layer, and wherein the water outlet of the reducing stabilization bed is positioned above the reducing agent packing layer.

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