CN217438309U - Hydrogen peroxide synthesizer and medical effluent disposal system - Google Patents

Abstract

The utility model discloses a hydrogen peroxide synthesizer and a medical wastewater treatment system, wherein the hydrogen peroxide synthesizer comprises a solar cell panel, a rectifier, a storage battery, an anode unit, a synthesis unit, a cathode unit and a storage unit; the output end of the solar panel is connected with the input end of the rectifier, the output end of the rectifier is connected with the input end of the storage battery pack, the positive electrode of the storage battery pack is connected with the anode unit, and the negative electrode of the storage battery pack is connected with the cathode unit; the synthesis unit is provided with an outlet, and the outlet pipeline is connected with the storage unit; a solid electrolyte is arranged in the synthesis unit, one end of the solid electrolyte is connected with the anode unit, and the other end of the solid electrolyte is connected with the cathode unit; wherein the disinfection tank of the medical wastewater treatment system is connected with the hydrogen peroxide synthesis device. The utility model discloses can green synthetic hydrogen peroxide to safe medical waste water of handling effectively.

Description

A hydrogen peroxide synthesis device and a medical wastewater treatment system

technical field

The utility model relates to a hydrogen peroxide synthesis device and a medical waste water treatment system, belonging to the technical field of environmental science.

Background technique

Medical wastewater is mainly formed by the dissolution of antibiotics remaining on expired medicines and medical equipment into water bodies. The main method commonly used to degrade antibiotics in medical wastewater is Fenton oxidation.

Fenton oxidation is the most commonly used wastewater treatment technology, which has the characteristics of fast reaction speed, mild reaction conditions and thorough reaction. The Fenton oxidation method is usually to add divalent iron salt (Fe ²⁺ ) to the wastewater first, then add hydrogen peroxide (H ₂ O ₂ ), and Fe ²⁺ acts as a catalyst to reduce H ₂ O ₂ to OH and H ₂ O. Since the oxidation potential of OH is second only to that of fluorine, OH can oxidize and decompose organic pollutants in wastewater. During the oxidation reaction, the oxidation potential can be as high as 2.8 V. After the Fenton reaction, the Continuing to add alkaline reagents to the wastewater can precipitate metal ions.

Based on this, the present application provides a hydrogen peroxide synthesis device and a medical wastewater treatment system.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, and to provide a hydrogen peroxide synthesis device and a medical waste water treatment system, which can synthesize hydrogen peroxide in a green way and safely and effectively treat the medical waste water.

In order to achieve the above object, the utility model adopts the following technical solutions to realize:

In one aspect, the present invention provides a hydrogen peroxide synthesis device, comprising a solar cell panel, a rectifier, a battery pack, an anode unit, a synthesis unit, a cathode unit and a storage unit;

The output end of the solar panel is connected to the input end of the rectifier, the output end of the rectifier is connected to the input end of the battery pack, the positive pole of the battery pack is connected to the anode unit, and the negative pole of the battery pack is connected to the cathode unit;

The synthesis unit is provided with an outlet, and the outlet pipeline is connected to the storage unit;

The synthesis unit is provided with a solid electrolyte, one end of the solid electrolyte is connected to the anode unit, and the other end of the solid electrolyte is connected to the cathode unit;

Further, the anode unit includes a first diffusion layer, a first colloid layer and a cation exchange membrane arranged in sequence;

The first colloidal layer is connected to the positive electrode of the battery pack;

The cation exchange membrane connects the synthesis unit.

Further, the cathode unit includes a second diffusion layer, a second colloid layer and an anion exchange membrane arranged in sequence;

The second glue layer is connected to the positive electrode of the battery pack;

The anion exchange membrane connects the synthesis units.

On the other hand, the present utility model provides a medical waste water treatment system, comprising the above-mentioned hydrogen peroxide synthesis device and a regulating tank, a hydrolysis acidification tank, an oxidation tank, a sedimentation area and a disinfection tank connected in sequence;

The input end of the disinfection tank is connected to the output end of the storage unit of the hydrogen peroxide synthesis device.

Further, the medical wastewater treatment system includes an oxygen supply fan;

The air outlet of the oxygen supply fan is respectively connected to the adjustment tank and the oxidation tank.

Further, the medical wastewater treatment system includes a mud collecting area;

The input ends of the mud collecting area are respectively connected with the regulating tank, the sedimentation area and the hydrolysis and acidification tank.

Further, a biofilm is hung in the oxidation tank.

Further, a pH value adjusting device and a buffer adding device are arranged in the adjusting tank.

Further, the precipitation zone includes a plurality of inclined plates or inclined tubes arranged in parallel.

Compared with the prior art, the beneficial effects achieved by the present utility model:

The utility model utilizes the solid electrolyte to synthesize hydrogen peroxide, avoids the use of organic solutions, not only reduces the cost of purification and purification, but also shortens the steps of synthesizing hydrogen peroxide and improves the efficiency. The utility model utilizes solar energy to generate electricity to synthesize hydrogen peroxide, which can save energy and realize clean production;

The utility model utilizes a hydrogen peroxide synthesis device to obtain an aqueous hydrogen peroxide solution, which is currently produced and used, reduces the danger in the transportation of hydrogen peroxide, and can safely and effectively treat medical waste water.

Description of drawings

FIG. 1 is a schematic structural diagram of an embodiment of the medical wastewater treatment system of the present invention;

Fig. 2 shows a kind of embodiment structural representation of the hydrogen peroxide synthesis device of the present utility model;

Fig. 3 shows a kind of embodiment structural representation of the hydrogen peroxide synthesis device of the present utility model;

In the picture: 1. Solar panel, 2. Rectifier, 3. Battery pack, 4. Synthesis module, 5. Storage unit, 6. Regulating tank, 7. Hydrolysis and acidification tank, 8. Oxidation tank, 9. Precipitation area, 10 , disinfection tank, 11, sludge collection area, 12, oxygen supply fan, 41, anode unit, 42, cathode unit, 43, synthesis unit, 411, first water inlet, 412, water outlet, 413, first oxygen outlet , 414, the first diffusion layer, 415, the first colloidal layer, 416, the cation exchange membrane, 421, the second water inlet, 422, the oxygen inlet, 423, the second oxygen outlet, 424, the second diffusion layer, 425, second colloidal layer, 426, anion exchange membrane, 431, outlet, 432, solid electrolyte.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention The novel and simplified description does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

Example 1

Hydrogen peroxide is a raw material or product suitable for various industrial applications, and its aqueous solution has strong oxidizing properties and is suitable for medical, food and environmental disinfection. This embodiment provides a hydrogen peroxide synthesis device.

Referring to FIG. 2 , the hydrogen peroxide synthesis device includes a solar cell panel 1 , a rectifier 2 , a battery pack 3 , a synthesis module 4 and a storage unit 5 .

Referring to FIG. 3 , the synthesis module 4 includes an anode unit 41 , a synthesis unit 43 and a cathode unit 42 which are arranged in sequence.

In practical application of this embodiment, the output end of the solar panel is connected to the input end of the rectifier, the output end of the rectifier is connected to the input end of the battery pack, the positive pole of the battery pack is connected to the anode unit 41 , and the negative pole of the battery pack is connected to the cathode unit 42 .

Referring to FIG. 2 , the anode unit 41 is provided with a first water inlet 411 , a first oxygen outlet 413 and a water outlet 412 .

In application, the first water inlet 411 is connected to a water supply device to obtain deionized water and to improve the yield; the first oxygen outlet 413 is connected to a waste gas collection device; and the water outlet 412 is connected to a waste liquid collection device.

The anode unit undergoes hydrolysis: 2H ₂ O–4e ^- →4H ⁺ +O ₂ (acidic);

Referring to FIG. 2 , the cathode unit 42 is provided with an oxygen inlet 422 , a second oxygen outlet 423 and a second water inlet 421 .

In application, the oxygen inlet 422 is connected to an oxygen supply device; the second oxygen outlet 423 is connected to a waste gas collection device; the second water inlet 421 is connected to a water supply device.

The cathode unit undergoes hydrolysis: O ₂ +H ₂ O+2e ^- →HO ₂ ^- +OH ^- ;

Referring to FIG. 3 , the synthesis unit 43 is provided with a solid electrolyte 432 , one end of the solid electrolyte 432 is connected to the anode unit 41 , and the other end of the solid electrolyte 432 is connected to the cathode unit 42 .

In application, the solid electrolyte 432 includes a multi-layer solid electrolyte 432, and each layer of the solid electrolyte 432 is a porous styrene-divinylbenzene sulfonated copolymer.

The synthesis unit takes place in the hydrogen peroxide synthesis reaction: HO ₂ ^- +H ⁺ →H ₂ O ₂ .

In the practical application of this embodiment, the hydrogen peroxide productivity is as high as 3.4 mmol/cm ² /h, and the concentration of the hydrogen peroxide aqueous solution is as high as 20%.

Referring to FIG. 2 , the synthesis unit 43 is provided with an outlet 431 , and the outlet 431 is connected to the storage unit 5 in a pipeline, and the storage unit 5 is used for storing hydrogen peroxide.

The utility model utilizes the solid electrolyte to synthesize hydrogen peroxide, avoids the use of organic solutions, not only reduces the cost of purification and purification, but also shortens the steps of synthesizing hydrogen peroxide and improves the efficiency. The utility model utilizes solar energy to generate electricity to synthesize hydrogen peroxide, which can save energy and realize clean production.

Example 2

On the basis of Embodiment 1, this embodiment introduces the anode unit and the cathode unit in detail.

Referring to FIG. 3 , the anode unit 41 includes a first diffusion layer 414 , a first colloid layer 415 and a cation exchange membrane 416 which are arranged in sequence.

In application, the first colloidal layer 415 is connected to the positive electrode of the battery pack; the cation exchange membrane 416 is connected to the solid electrolyte 432 of the synthesis unit 43 .

Referring to FIG. 3 , the cathode unit 42 includes a second diffusion layer 424 , a second colloid layer 425 and an anion exchange membrane 426 arranged in sequence;

In application, the second colloidal layer 425 is connected to the positive electrode of the battery pack; the anion exchange membrane 426 is connected to the solid electrolyte 432 of the synthesis unit 43 .

The cation exchange membrane of the utility model can filter H ⁺ , the anion exchange membrane can filter HO ₂ ^- , and the solid electrolyte directly utilizes the H ⁺ and HO ₂ ^- filtered by the cation exchange membrane and the anion exchange membrane to synthesize H ₂ O ₂ , avoiding the need for The use of organic solutions as solvents reduces purification and purification costs.

Example 3

Since medical wastewater contains a large number of germs, viruses, other toxic and harmful substances, antibiotics, etc., this embodiment provides a medical wastewater treatment system.

1 , the medical wastewater treatment system includes the hydrogen peroxide synthesis device described in Example 1 or 2, and a conditioning tank 6 , a hydrolysis and acidification tank 7 , an oxidation tank 8 , a sedimentation zone 9 and a disinfection tank 10 connected in sequence.

In the application, the hospital comprehensive sewage is pretreated by the septic tank to obtain medical waste water, and the medical waste water is sanded through the grid well, that is, after removing large particles of suspended solids and fibrous impurities, it enters the regulating tank (6).

Referring to Figure 1, the output end of the adjustment tank (6) is connected to the input end of the hydrolysis and acidification tank (7), the hydrolysis acidification tank (7) is connected to the oxidation tank (8), and the output end of the oxidation tank (8) is connected to the input end of the precipitation zone (9). The input end of the sedimentation zone (9) is connected to the input end of the disinfection tank.

In application, the regulating tank (6) is provided with a lifting pump and a coagulation and sedimentation unit. The medical wastewater is lifted into the coagulation and sedimentation unit for coagulation and sedimentation, and is output into the hydrolysis and acidification tank (7) through the coagulation and sedimentation unit for hydrolysis. An internal circulation device is arranged between the acidification tank (7) and the oxidation tank (8), that is, the medical wastewater entering the oxidation tank (8) enters the hydrolysis and acidification tank (7) through the internal circulation device to improve the acidification and oxidation degree of the medical wastewater.

Referring to Figure 1, the input end of the disinfection tank is connected to the output end of the storage unit of the hydrogen peroxide synthesis device.

Referring to FIG. 2 , a metering dosing pump is arranged between the output end of the storage unit and the input end of the disinfection tank to regulate the concentration of hydrogen peroxide in the disinfection tank.

The utility model obtains a hydrogen peroxide aqueous solution with a concentration of 20% through a hydrogen peroxide synthesis device, which is currently produced and used, reduces the danger in the transportation of hydrogen peroxide, and can effectively treat medical waste water.

Example 4

On the basis of Example 3, this example introduces in detail the conditioning tank 6, the hydrolysis acidification tank 7, the oxidation tank 8, the sedimentation area 9, the disinfection tank 10, the oxygen supply fan 12 and the sludge collection area 11 of the medical wastewater treatment system.

The medical wastewater treatment system of this embodiment further includes an oxygen supply fan 12 and a mud collecting area 11 . Among them, the input end of the sludge collecting area 11 is connected to the regulating tank 6, the sedimentation area 9 and the hydrolysis and acidification tank 7 respectively, and the output end of the sludge collecting area 11 is connected to the sludge outgoing device to maintain the cleanliness of the system and the treatment capacity of medical wastewater. In addition, the air outlet of the oxygen supply fan 12 is connected to the adjustment tank 6 and the oxidation tank 8 respectively.

(1) Adjustment pool

The regulating tank 6 is of reinforced concrete structure, and is equipped with a pH value regulating device and a buffer adding device, which are used to regulate the acid environment and stability of medical wastewater.

(2) Hydrolysis and acidification tank

The hydrolysis and acidification tank 7 is a carbon steel anti-corrosion structure. The main purpose is to convert the insoluble organic matter in the original wastewater into soluble organic matter, convert the refractory organic matter into easily biodegradable organic matter, and improve the biodegradability of the wastewater to facilitate subsequent oxidation treatment.

(3) Oxidation pool

A biofilm is hung in the oxidation tank 8, and bacterial strains are attached to the biofilm.

The specific surface area of the biofilm is large, the oxygenation conditions in the pool are good, and the air flow is good, which makes the medical wastewater and the biofilm produce a relatively large relative speed, which accelerates the renewal of the medium on the surface of the bacteria, enhances the mass transfer effect, and accelerates the biological process. Metabolic speed, shortened processing time.

(4) Precipitation area

The precipitation zone 9 includes a plurality of inclined plates or inclined tubes arranged in parallel, which are used to separate the medical waste water flow entering the precipitation zone 9 into thin layers, so as to improve the precipitation efficiency.

The above is only the preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, some improvements and deformations can be made without departing from the technical principle of the present invention. These improvements and deformation should also be regarded as the protection scope of the present invention.

Claims (9)

1. A hydrogen peroxide synthesis device is characterized by comprising a solar cell panel (1), a rectifier (2), a storage battery (3), an anode unit (41), a synthesis unit (43), a cathode unit (42) and a storage unit (5);

the output end of the solar cell panel is connected with the input end of the rectifier, the output end of the rectifier is connected with the input end of the storage battery pack, the positive electrode of the storage battery pack is connected with the anode unit (41), and the negative electrode of the storage battery pack is connected with the cathode unit (42);

an outlet (431) is formed in the synthesis unit (43), and the outlet (431) is connected with the storage unit (5) through a pipeline;

a solid electrolyte (432) is arranged in the synthesis unit (43), one end of the solid electrolyte (432) is connected with the anode unit (41), and the other end of the solid electrolyte (432) is connected with the cathode unit (42);

the anode unit (41) is provided with a first water inlet (411), a first oxygen outlet (413) and a water outlet (412);

the cathode unit (42) is provided with an oxygen inlet (422), a second oxygen outlet (423) and a second water inlet (421).

2. The hydrogen peroxide synthesis apparatus according to claim 1, wherein the anode unit (41) comprises a first diffusion layer (414), a first colloidal layer (415), and a cation exchange membrane (416) provided in this order;

the first colloid layer (415) is connected with the positive electrode of the storage battery;

the cation exchange membrane (416) is connected with the synthesis unit (43).

3. The hydrogen peroxide synthesis apparatus according to claim 1, wherein the cathode unit (42) comprises a second diffusion layer (424), a second colloidal layer (425), and an anion exchange membrane (426) which are arranged in sequence;

the second colloidal layer (425) is connected with the positive electrode of the storage battery pack;

the anion exchange membrane (426) is connected with a synthesis unit (43).

4. A medical wastewater treatment system, characterized by comprising the hydrogen peroxide synthesis device as defined in any one of claims 1 to 3, and a regulating tank (6), a hydrolysis acidification tank (7), an oxidation tank (8), a settling zone (9) and a disinfection tank (10) which are connected in sequence;

the input end of the disinfection pool is connected with the output end of the storage unit of the hydrogen peroxide synthesis device.

5. The medical wastewater treatment system according to claim 4, comprising an oxygen supply fan (12);

and the air outlet of the oxygen supply fan (12) is respectively connected with the adjusting tank (6) and the oxidation tank (8).

6. The medical wastewater treatment system according to claim 4, characterized by comprising a sludge collection zone (11);

the input end of the sludge collection area (11) is respectively connected with the adjusting tank (6), the sedimentation area (9) and the hydrolysis acidification tank (7).

7. The medical wastewater treatment system according to claim 4, wherein a biological membrane is hung in the oxidation pond (8).

8. The medical wastewater treatment system according to claim 4, wherein a pH value adjusting device and a buffer adding device are arranged in the regulating reservoir (6).

9. The medical wastewater treatment system according to claim 4, wherein the settling zone (9) comprises a plurality of inclined plates or tubes arranged in parallel.

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