Micro-sand carbon-adding precipitation device

Abstract

The utility model discloses a micro sand carbon adding precipitation device which comprises a first reaction tank body, a second reaction tank body, a third reaction tank body, a fourth reaction tank body and a fifth reaction tank body, a flow sinking pipe is arranged in the second reaction tank body, the first reaction tank body is connected with the flow sinking pipe, and the fifth reaction tank body is connected with the third reaction tank body. The first reaction tank body is connected with the first reaction tank body, the second reaction tank body is connected with the third reaction tank body, the third reaction tank body is connected with the fourth reaction tank body, the fourth reaction tank body is connected with the fifth reaction tank body, and the fourth reaction tank body is filled with micro sand. Compared with the prior art, the device has the following beneficial effects that different reaction tanks are used in a combined mode, activated carbon and micro sand are added into the reaction tanks, precipitation and adsorption are conducted through the activated carbon and the micro sand, the microbial action is not needed, and the device is suitable for treatment operation of municipal wastewater containing pollutants such as heavy metal.

Description

Technical Field

[0001] This utility model relates to the field of water treatment, and in particular to a micro-sand carbonization sedimentation device. Background Technology

[0002] Currently, municipal sewage must be treated before it can be discharged. One very important indicator of whether municipal sewage treatment meets the standards is COD (Chemical Oxygen Demand). In order to make the COD value after treatment as low as possible, patent publication CN114620830A discloses a device for treating municipal sewage. This sewage treatment device removes nitrogen and phosphorus from the sewage through nitrification and denitrification. Therefore, this device is actually based on the action of microorganisms to remove nitrogen and phosphorus. However, once industrial wastewater (containing heavy metal ions) is mixed into municipal sewage, the presence of industrial wastewater will affect the activity of microorganisms. Therefore, the device disclosed in CN114620830A is not suitable for treating municipal sewage mixed with industrial wastewater. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a micro-sand and carbon-added sedimentation device. By combining different reaction tanks and adding activated carbon and micro-sand to the reaction tanks, the device utilizes activated carbon and micro-sand for sedimentation and adsorption, eliminating the need for microbial action. This device is suitable for treating municipal wastewater containing pollutants such as heavy metals.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A micro-sand carbonization precipitation device includes a first reaction tank, a second reaction tank, a third reaction tank, a fourth reaction tank, and a fifth reaction tank. A settling pipe is provided in the second reaction tank. The first reaction tank is connected to the settling pipe. The second reaction tank is connected to the third reaction tank. The third reaction tank is connected to the fourth reaction tank. The fourth reaction tank is connected to the fifth reaction tank. The fourth reaction tank is filled with micro-sand.

[0006] The working process of this micro-sand and carbon-added sedimentation device is as follows: First, wastewater enters the first reaction tank, where activated carbon powder is added. The activated carbon powder mixes thoroughly with the wastewater, and then the activated carbon powder adsorbs the pollutants in the wastewater. After the wastewater and activated carbon powder in the first reaction tank are mixed, they flow into the settling pipe in the second reaction tank. The wastewater flows from the top of the settling pipe to the bottom of the second reaction tank. PAM (polyacrylamide) is added in the settling pipe. The activated carbon powder and other suspended solids, after adsorbing pollutants, precipitate under the action of PAM and settle at the bottom of the second reaction tank. Then, the wastewater in the second reaction tank continues to flow into the third reaction tank, where PAC (aluminum chloride) flocculant is added. The suspended particles in the wastewater flocculate under the action of the flocculant and enter the fourth reaction tank. Micro-sand is added to the fourth reaction tank, where some of the suspended solids flocculate and settle at the bottom of the fourth reaction tank. Then, the wastewater in the fourth reaction tank enters the fifth reaction tank and is finally discharged.

[0007] In summary, this carbon-added precipitation device, by combining different reaction tanks and adding activated carbon and micro-sand to the reaction tanks, utilizes activated carbon and micro-sand for precipitation and adsorption, without the need for microbial action, and is suitable for the treatment of municipal wastewater containing pollutants such as heavy metals.

[0008] Optionally, a circulation cylinder is provided inside the fourth reaction vessel.

[0009] After the wastewater enters the fourth reaction tank, it first enters the circulation cylinder, where coagulant and micro-sand are added to carry out the reaction.

[0010] Optionally, the fourth reaction vessel is equipped with a circulating stirring blade, which is located inside the circulating cylinder.

[0011] The function of the circulating agitator blades is twofold: first, to agitate the sewage in the circulating drum, and second, to turbulently move the sewage from the top to the bottom of the circulating drum.

[0012] Optionally, it also includes an inclined tube, which is disposed inside the fifth reaction tank, and the outlet is opened on the fifth reaction tank, with the inclined tube located below the outlet.

[0013] The function of the inclined tube is to perform a second adsorption process on the wastewater before it is discharged. After the wastewater has been adsorbed by the inclined tube, it is discharged.

[0014] Optionally, the water inlet is located on the first reaction tank, and an inlet pipe is connected to the water inlet, while an outlet pipe is connected to the water outlet.

[0015] Optionally, a first stirring blade is rotatably disposed inside the first reaction vessel, and a second stirring blade is disposed inside the third reaction vessel.

[0016] The function of the first and second stirring blades is to stir.

[0017] Optionally, the bottom of the second reaction vessel is connected to a first circulation pump set, and the bottom of the fourth reaction vessel is connected to a second circulation pump set.

[0018] The function of the first circulation pump set is to reflux the activated carbon powder particles in the second reaction tank, and the function of the second circulation pump set is to reflux the micro-sand in the fourth reaction tank.

[0019] Optionally, a drain pipe assembly is connected to the bottom of the fifth reaction tank.

[0020] The function of the sewage pipe assembly is to discharge the deposited sewage.

[0021] The beneficial effects of this invention are: by combining different reaction tanks and adding activated carbon and micro sand into the reaction tanks, the activated carbon and micro sand are used for precipitation and adsorption, eliminating the need for microbial action, and making it suitable for the treatment of municipal wastewater containing pollutants such as heavy metals. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is a micro-sand carbonization sedimentation device.

[0024] The figures in the diagram are labeled as follows: 1. Inlet pipe; 2. First reaction tank; 3. First stirring blade; 4. Second reaction tank; 5. First circulating pump set; 6. Submerged pipe; 7. Third reaction tank; 8. Second stirring blade; 9. Circulation cylinder; 10. Second circulating pump set; 11. Fourth reaction tank; 12. Fifth reaction tank; 13. Drain pipe; 14. Sewage pipe set; 15. Inclined submerged pipe; 16. Circulating stirring blade. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0028] As attached Figure 1 As shown, a micro-sand carbonization precipitation device includes a first reaction tank 2, a second reaction tank 4, a third reaction tank 7, a fourth reaction tank 11, and a fifth reaction tank 12. A settling pipe 6 is installed inside the second reaction tank 4. The first reaction tank 2 is connected to the settling pipe 6. The second reaction tank 4 is connected to the third reaction tank 7. The third reaction tank 7 is connected to the fourth reaction tank 11. The fourth reaction tank 11 is connected to the fifth reaction tank 12. The fourth reaction tank 11 is filled with micro-sand.

[0029] The working process of this micro-sand and carbon-added sedimentation device is as follows: First, wastewater enters the first reaction tank 2. Activated carbon powder is added to the first reaction tank 2, and the activated carbon powder mixes thoroughly with the wastewater. Then, the activated carbon powder adsorbs the pollutants in the wastewater. After the wastewater and activated carbon powder in the first reaction tank 2 are mixed, they flow into the settling pipe 6 in the second reaction tank 4. The wastewater flows from the top of the settling pipe 6 to the bottom of the second reaction tank 4. PAM (polyacrylamide) is added to the settling pipe 6. The activated carbon powder and other suspended solids, after adsorbing pollutants, precipitate under the action of PAM and are deposited at the bottom of the second reaction tank 4. Then, the wastewater in the second reaction tank 4 continues to flow to the third reaction tank 7. PAC (aluminum chloride) flocculant is added to the third reaction tank 7. The suspended particles in the wastewater flocculate under the action of the flocculant and enter the fourth reaction tank 11. Micro-sand is added to the fourth reaction tank 11. Some of the suspended solids flocculate and precipitate at the bottom of the fourth reaction tank 11. Then, the wastewater in the fourth reaction tank 11 enters the fifth reaction tank 12 and is finally discharged.

[0030] In summary, this carbon-added precipitation device combines different reaction tanks and adds activated carbon and micro-sand to the reaction tanks. It utilizes activated carbon and micro-sand for precipitation and adsorption without the need for microbial action, making it suitable for treating municipal wastewater containing pollutants such as heavy metals.

[0031] As attached Figure 1 As shown, a circulation cylinder 9 is installed inside the fourth reaction vessel 11.

[0032] After the wastewater enters the fourth reaction tank, it first enters the circulation cylinder 9. The coagulant and micro-sand are added into the circulation cylinder 9 to react.

[0033] As attached Figure 1 As shown, a circulating stirring blade 16 is installed inside the fourth reaction tank 11, and the circulating stirring blade 16 is located inside the circulating cylinder 9.

[0034] The function of the circulating stirring blade 16 is twofold: first, to stir the sewage in the circulating cylinder 9, and second, to turbulently flow the sewage in the circulating cylinder 9 from the top to the bottom.

[0035] As attached Figure 1 As shown, it also includes an inclined tube, which is installed inside the fifth reaction tank 12. The water outlet is opened on the fifth reaction tank 12, and the inclined tube is located below the water outlet.

[0036] The function of the inclined tube is to perform a second adsorption process on the wastewater before it is discharged. After the wastewater has been adsorbed by the inclined tube, it is discharged.

[0037] As attached Figure 1 As shown, the water inlet is located on the first reaction tank 2, and the water inlet is connected to the water inlet pipe 1, while the water outlet is connected to the water outlet pipe.

[0038] As attached Figure 1 As shown, a first stirring blade 3 is rotatably installed inside the first reaction tank 2, and a second stirring blade 8 is installed inside the third reaction tank 7.

[0039] The function of the first stirring blade 3 and the second stirring blade 8 is to stir.

[0040] As attached Figure 1 As shown, the bottom of the second reaction tank 4 is connected to the first circulation pump group 5, and the bottom of the fourth reaction tank 11 is connected to the second circulation pump group 10.

[0041] The function of the first circulation pump group 5 is to reflux the activated carbon powder particles in the second reaction tank 4, and the function of the second circulation pump group 10 is to reflux the micro sand in the fourth reaction tank 11.

[0042] As attached Figure 1 As shown, the bottom of the fifth reaction tank 12 is connected to a drain pipe assembly 14.

[0043] The function of the sewage pipe assembly 14 is to discharge the deposited sewage.

[0044] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A micro-sand carbon precipitation device, characterized in that, It includes a first reaction tank, a second reaction tank, a third reaction tank, a fourth reaction tank, and a fifth reaction tank. The second reaction tank is equipped with a downflow pipe. The first reaction tank is connected to the downflow pipe. The second reaction tank is connected to the third reaction tank. The third reaction tank is connected to the fourth reaction tank. The fourth reaction tank is connected to the fifth reaction tank. The fourth reaction tank is filled with micro-sand.

2. The micro-sand carbonization sedimentation device according to claim 1, characterized in that, The fourth reaction vessel is equipped with a circulation cylinder.

3. The micro-sand carbonization sedimentation device according to claim 2, characterized in that, The fourth reaction vessel is equipped with a circulating stirring blade, which is located inside the circulating cylinder.

4. The micro-sand carbonization sedimentation device according to claim 1, characterized in that, It also includes an inclined tube, which is disposed inside the fifth reaction tank, and the outlet is opened on the fifth reaction tank, with the inclined tube located below the outlet.

5. The micro-sand carbonization sedimentation device according to claim 4, characterized in that, The water inlet is located on the first reaction tank, and an inlet pipe is connected to the water inlet. The water outlet is connected to the water outlet pipe.

6. The micro-sand carbonization sedimentation device according to claim 1, characterized in that, The first reaction vessel is equipped with a first stirring blade that rotates within it, and the third reaction vessel is equipped with a second stirring blade.

7. The micro-sand carbonization sedimentation device according to claim 1, characterized in that, The bottom of the second reaction vessel is connected to a first circulation pump set, and the bottom of the fourth reaction vessel is connected to a second circulation pump set.

8. The micro-sand carbonization sedimentation device according to claim 1, characterized in that, The bottom of the fifth reaction vessel is connected to a sewage pipe assembly.

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