CN214781229U

CN214781229U - Hydrogen peroxide catalytic oxidation sewage treatment equipment

Info

Publication number: CN214781229U
Application number: CN202121305675.9U
Authority: CN
Inventors: 常莎
Original assignee: Shanghai Fuyuan Environmental Protection Engineering Co ltd
Current assignee: Shanghai Fuyuan Environmental Protection Engineering Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-11-19
Anticipated expiration: 2031-06-11

Abstract

The utility model provides a hydrogen peroxide catalytic oxidation sewage treatment device, which comprises a reservoir, a first reaction tank, a second reaction tank, a third reaction tank, a pump and a water outlet tank; the water reservoir is connected with the first reaction tank, the first reaction tank is connected with the second reaction tank, the second reaction tank is connected with the third reaction tank, the third reaction tank is connected with the water outlet tank, and the pump is connected with the water reservoir, the first reaction tank, the second reaction tank, the third reaction tank and the water outlet tank; the first reaction tank is connected with a first reagent container, and ferrous sulfate and hydrogen peroxide are arranged in the first reagent container; after the hydrogen peroxide and the ferrous sulfate react, the sewage can be quickly oxidized by strong oxidizing power, and then the precipitate is generated by lime milk and a flocculating agent, so that the cost is low, the stability is good, and secondary pollution to the environment is avoided.

Description

Hydrogen peroxide catalytic oxidation sewage treatment equipment

Technical Field

The utility model relates to the field of environmental protection, concretely relates to hydrogen peroxide solution catalytic oxidation sewage treatment device.

Background

With the development of industry, new problems arise in water treatment and water pollution control. The industrial waste water contains some toxic pollutants (such as sulfide, cyanide, phenolic compounds, hydrazine, nitrite, toxic heavy metal and the like). Meanwhile, in order to protect the environment and water resources and reuse the treated polluted water, the environmental protection department sets up strict standards. In many cases, industrial wastewater must be subjected to three-stage advanced treatment to meet the requirements of water pollution treatment and wastewater reuse. Therefore, the development of a hydrogen peroxide catalytic oxidation sewage treatment device is necessary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem, provide hydrogen peroxide solution catalytic oxidation sewage treatment device, hydrogen peroxide solution and ferrous sulfate reaction back can be with the quick oxidation treatment of sewage through strong oxidizing power, and rethread lime breast and flocculating agent produce the sediment, and is with low costs, stable good, does not produce secondary pollution to the environment moreover.

In order to achieve the purpose, the utility model adopts the following technical scheme.

The hydrogen peroxide catalytic oxidation sewage treatment equipment comprises a reservoir, a first reaction tank, a second reaction tank, a third reaction tank, a pump and a water outlet tank; the water reservoir is connected with the first reaction tank, the first reaction tank is connected with the second reaction tank, the second reaction tank is connected with the third reaction tank, the third reaction tank is connected with the water outlet tank, and the pump is connected with the water reservoir, the first reaction tank, the second reaction tank, the third reaction tank and the water outlet tank; the first reaction tank is connected with a first reagent container, and ferrous sulfate and hydrogen peroxide are arranged in the first reagent container; the second reaction tank is connected with a second reagent container, and lime milk and a flocculating agent are arranged in the second reagent container; and the third reaction tank is internally provided with activated carbon.

Further, a first flow meter is arranged between the first reaction pool and the first reagent container.

Further, a second flow meter is arranged between the second reaction pool and the second reagent container.

Further, the first reaction tank is provided with a first stirring paddle.

Further, the first stirring paddle is disposed away from the first reagent container.

Further, the second reaction tank is provided with a second heater and a second stirring paddle.

Further, the second heater is disposed remotely from the second reagent container.

Further, the second stirring paddle is disposed away from the second reagent container.

Further, the second reaction tank is also provided with a filter screen.

Further, the filter screen is a multilayer dense-screen type filter screen.

The utility model discloses hydrogen peroxide solution catalytic oxidation sewage treatment device's positive effect is:

the utility model can be used for treating various kinds of sewage, including inorganic sewage and organic sewage. Has good effect on toxic sewage, such as sulfide, cyanide, phenolic compounds, hydrazine, nitrite, toxic heavy metal and the like. The utility model discloses still improve the ability of handling waste water, can prevent the mud inflation.

Drawings

Fig. 1 is a schematic diagram provided by an embodiment of the present invention.

The reference numerals in the figures are respectively:

1. a reservoir; 2. a first reaction tank; 3. a second reaction tank; 4. a third reaction tank; 5. a pump; 6. a water outlet pool; 7. a first reagent container; 8. a second reagent container; 9. a first flow meter; 10. a second flow meter; 11. a first stirring paddle; 12. a second stirring paddle; 13. a second heater; 14. and (5) filtering by using a filter screen.

Detailed Description

The following gives the concrete implementation of the hydrogen peroxide catalytic oxidation sewage treatment device of the present invention with reference to the accompanying drawings, but it should be pointed out that: the described embodiments are not intended to limit the practice of the invention. All adopt the utility model discloses a similar structure and similar change all should go into the utility model discloses a protection scope. The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the embodiments, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.

See fig. 1. The hydrogen peroxide catalytic oxidation sewage treatment equipment comprises a water storage tank 1, a first reaction tank 2, a second reaction tank 3, a third reaction tank 4, a pump 5 and a water outlet tank 6; the water storage tank 1 is connected with the first reaction tank 2, the first reaction tank 2 is connected with the second reaction tank 3, the second reaction tank 3 is connected with the third reaction tank 4, the third reaction tank 4 is connected with the water outlet tank 6, and the pump 5 is connected with the water storage tank 1, the first reaction tank 2, the second reaction tank 3, the third reaction tank 4 and the water outlet tank 6; the first reaction tank 2 is connected with a first reagent container 7, and ferrous sulfate and hydrogen peroxide are arranged in the first reagent container 7; the second reaction tank 3 is connected with a second reagent container 8, and lime milk and a flocculating agent are arranged in the second reagent container 8; and the third reaction tank 4 is internally provided with activated carbon.

A first flow meter 9 is further disposed between the first reaction cell 2 and the first reagent container 7. A second flow meter 10 is further disposed between the second reaction cell 3 and the second reagent container 8. The metering of the first reagent container 7 and the second actual container into the first reaction tank 2 and the second reaction tank 3 can be adjusted according to the total amount of wastewater by the first flow meter 9 and the second flow meter 10. The first flow meter 9 is provided at the upper end of the first reaction tank 2, and the second flow meter 10 is provided at the upper end of the second reaction tank 3. The first reagent container 7 is provided at the upper end of the first reaction cell 2, and the second reagent container 8 is provided at the upper end of the second reaction cell 3.

The first reaction tank 2 is provided with a first stirring paddle 11. The first stirring paddle 11 is arranged remote from the first reagent container 7. The first stirring paddle 11 is arranged at the lower end of the first reaction tank 2 and is used for stirring the wastewater, the ferrous sulfate and the hydrogen peroxide to accelerate the reaction. Ferrous sulfate is used to catalytically decompose hydrogen peroxide to produce free OH, which has very strong oxidizing power and can treat sulfide, cyanide, phenolic compound, hydrazine, nitrite, toxic heavy metal, etc. in sewage.

The second reaction tank 3 is provided with a second heater 13 and a second stirring paddle 12. The second stirring paddle 12 is disposed away from the second reagent container 8. The second stirring paddle 12 is arranged at the lower end of the second reaction tank 3 and is used for stirring the wastewater, the ferrous sulfate and the hydrogen peroxide to accelerate the reaction. The second heater 13 is disposed away from the second reagent container 8. The second heater 13 is disposed at the lower end of the second reaction tank 3 for temperature adjustment of the wastewater. The inventor of the utility model finds that when the water temperature is lower, the hydrolysis speed of the flocculating agent is slow and incomplete. Under the condition of low temperature, the viscosity of water is high, Brownian motion is weakened, the number of times of collision between a flocculating agent and impurity particles in sewage is reduced, and meanwhile, the shearing force of the water is increased, so that mutual adhesion of flocs is hindered; therefore, despite the increased amount of flocculant, floc formation is slow and loose, fine-grained, and difficult to remove. Meanwhile, when the water temperature is too high, the flocculating agent is easy to age and even decompose to generate insoluble substances, so that the coagulation effect is reduced.

The second reaction tank 3 is also provided with a filter screen 14. The filter screen 14 is the dense sieve type filter screen of multilayer, and in this embodiment is, is provided with the dense sieve type filter screen of three-layer, is the dense sieve type filter screen of large aperture, the dense sieve type filter screen of mesopore footpath and the dense sieve type filter screen of aperture respectively for filter the floccule after the flocculation, the area of filter screen 14 is the same, is provided with the spliced pole between the filter screen 14, when taking out, only needs upwards to carry and just can take out filter screen 14. The third reaction tank 4 is provided with activated carbon, and the activated carbon mainly plays a role in adsorption in the third reaction tank 4.

Claims

1. The hydrogen peroxide catalytic oxidation sewage treatment equipment is characterized by comprising a reservoir, a first reaction tank, a second reaction tank, a third reaction tank, a pump and a water outlet tank; the water reservoir is connected with the first reaction tank, the first reaction tank is connected with the second reaction tank, the second reaction tank is connected with the third reaction tank, the third reaction tank is connected with the water outlet tank, and the pump is connected with the water reservoir, the first reaction tank, the second reaction tank, the third reaction tank and the water outlet tank; the first reaction tank is connected with a first reagent container, and ferrous sulfate and hydrogen peroxide are arranged in the first reagent container; the second reaction tank is connected with a second reagent container, and lime milk and a flocculating agent are arranged in the second reagent container; and the third reaction tank is internally provided with activated carbon.

2. The apparatus for treating sewage by catalytic oxidation with hydrogen peroxide according to claim 1, wherein a first flow meter is further disposed between the first reaction tank and the first reagent container.

3. The apparatus for treating sewage by catalytic oxidation with hydrogen peroxide according to claim 1, wherein a second flow meter is further disposed between the second reaction tank and the second reagent container.

4. The apparatus for treating sewage by catalytic oxidation of hydrogen peroxide according to claim 1, wherein the first reaction tank is provided with a first stirring paddle.

5. The apparatus for treating sewage by catalytic oxidation of hydrogen peroxide according to claim 4, wherein the first stirring paddle is disposed away from the first reagent container.

6. The apparatus for treating sewage by catalytic oxidation of hydrogen peroxide according to claim 1, wherein the second reaction tank is provided with a second heater and a second stirring paddle.

7. The apparatus for treating wastewater by catalytic oxidation with hydrogen peroxide according to claim 6, wherein the second heater is disposed away from the second reagent container.

8. The apparatus for treating sewage by catalytic oxidation of hydrogen peroxide according to claim 6, wherein the second stirring paddle is disposed away from the second reagent container.

9. The apparatus for treating sewage by catalytic oxidation with hydrogen peroxide according to claim 1, wherein the second reaction tank is further provided with a filter screen.

10. The apparatus for treating sewage by catalytic oxidation with hydrogen peroxide according to claim 9, wherein the filter screen is a multi-layer dense-screen filter screen.