CN217173449U

CN217173449U - Equipment for degrading COD in wastewater

Info

Publication number: CN217173449U
Application number: CN202220328017.XU
Authority: CN
Inventors: 闫博; 闫晴; 段宁杰; 娄阳
Original assignee: Henan Anjiu Medical Equipment Co ltd
Current assignee: Henan Anjiu Medical Equipment Co ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-08-12
Anticipated expiration: 2032-02-18

Abstract

The utility model relates to a device for degrading COD in wastewater, which comprises a water storage tank, a stuffing box, a dosing box, a settling tank, an aeration pipe group, a water outlet box and an emptying pipe group; a wastewater inlet pipe is communicated with the water storage tank, and a first PH detector is arranged in the stuffing box; the dosing box comprises a hydrogen peroxide dosing box and an alkaline solution dosing box which are sequentially arranged, and a second PH detector is arranged in the alkaline solution dosing box; the sedimentation tank is communicated with the alkaline solution dosing tank through an overflow pipe, the water outlet tank is used for receiving treated wastewater overflowed from the sedimentation tank, a purified water outlet is arranged on the water outlet tank, a secondary wastewater treatment pipe set is connected between the water outlet tank and the water storage tank, and a third PH detector is also arranged in the water outlet tank; the aeration pipe sets are respectively arranged in the water storage tank, the stuffing box and the dosing tank, and the emptying pipe sets are arranged in one-to-one correspondence with the water storage tank, the stuffing box, the dosing tank and the settling tank. The utility model discloses can effectively degrade the COD in the waste water, reduce the pollution of waste water to the environment.

Description

Equipment for degrading COD in wastewater

Technical Field

The utility model belongs to the technical field of sewage treatment, especially, relate to a COD's in degradation waste water equipment.

Background

In the field of wastewater treatment, indexes such as Chemical Oxygen Demand (COD), ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, chromaticity and the like are commonly used to indicate the types and/or amounts of pollutants in wastewater. Wherein, COD, also called chemical oxygen demand, refers to the amount of oxidant consumed when a certain strong oxidant is adopted to treat a water sample under certain conditions. It is an index showing the amount of reducing substances in water. The reducing substances in the water include various organic substances, nitrites, sulfides, ferrous salts, and the like, but the reducing substances are mainly organic substances. Therefore, COD is often used as an index for measuring the content of organic substances in water, and the larger the COD is, the more serious the water body is polluted by the organic substances.

In order to reduce the environmental pollution caused by wastewater, the COD in the wastewater needs to be degraded, and therefore, the development of an efficient apparatus for degrading the COD in the wastewater is urgently needed.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a COD's in degradation waste water equipment to the COD in the sewage degrades, reduces the pollution to the environment.

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

an apparatus for degrading COD in wastewater, comprising:

the water storage tank is communicated with a wastewater inlet pipe;

the packing box is used for adding an acidic solution, and a first PH detector is arranged in the packing box;

the hydrogen peroxide dosing box is used for receiving wastewater overflowing from the filling box, the alkaline solution dosing box is used for receiving the wastewater overflowing from the hydrogen peroxide dosing box, and a second PH detector is arranged in the alkaline solution dosing box;

the settling tank is communicated with the alkaline solution dosing tank through an overflow pipe;

the aeration pipe sets are respectively arranged in the water storage tank, the stuffing box and the dosing box;

the water outlet tank is used for receiving the treated wastewater overflowing from the sedimentation tank, a purified water outlet is arranged on the water outlet tank, a secondary wastewater circulating treatment pipe group is connected between the water outlet tank and the water storage tank, and a third PH detector is also arranged in the water outlet tank;

and the emptying pipe groups are arranged in one-to-one correspondence with the water storage tank, the stuffing box, the dosing box and the settling box.

The beneficial effects of the above technical scheme are: adopt the utility model discloses when carrying out waste water treatment, waste water gets into the storage water tank, through the air inflation of certain time, get into the stuffing box reaction that has the acid solution, in reaction process, quality of water pH value passes through first PH detector, make its control in the acid range, after the reaction of certain time, get into in the hydrogen peroxide dosing tank, carry out oxidation reaction under hydrogen peroxide solution's effect, after a period of time oxidation, reentrant alkaline solution dosing tank, add appropriate amount alkali lye, detect through second PH detector and make the pH value keep in the alkaline range, then get into the sedimentation tank, overflow to the outlet box after the sediment, detect through the PH detector, after the pH value is 7, discharge the delivery port, still when the alkaline range at the pH value, open secondary waste water treatment nest of tubes and carry out secondary waste water treatment. The utility model discloses a COD in the waste water can effectively be degraded in a series of reactions, reduces the pollution of waste water to the environment.

Furthermore, the water storage tank, the stuffing box, the dosing box, the settling tank and the water outlet box are integrated in a wastewater treatment box body.

Has the advantages that: can reduce the occupied area of the whole equipment for degrading COD in the wastewater and save the cost.

Furthermore, the length direction of the wastewater treatment box body is defined as the left-right direction, the width direction is the front-back direction, longitudinal partition plates extending along the left-right direction are arranged in the wastewater treatment box body to divide the wastewater treatment box body into a front half area and a rear half area, a plurality of transverse partition plates arranged at intervals along the left-right direction are arranged in the front half area and the rear half area to divide the front half area and the rear half area into a plurality of compartments, the water storage tank and the filling box are respectively formed by corresponding compartments of the front half area, and the hydrogen peroxide dosing tank, the alkaline solution dosing tank, the settling tank and the water outlet tank are respectively formed by corresponding compartments of the rear half area.

Has the advantages that: under the condition of ensuring effective treatment of the wastewater, the occupied area of the wastewater treatment box body is further reduced, so that the structure of the whole wastewater treatment box body is more compact.

Furthermore, the settling tank is provided with a first settling zone and a second settling zone which are mutually communicated, the first settling zone is communicated with the alkaline solution dosing tank through an overflow pipe, an overflow port is arranged between the second settling zone and the water outlet tank, the first settling zone is internally provided with an anti-impact device, the anti-impact device comprises a cylindrical pipe and a conical cylinder which is coaxially connected below the cylindrical pipe, the cylindrical pipe is communicated with the overflow pipe, the circumference of the cylindrical pipe is connected with the corresponding tank wall of the settling tank through a plurality of connecting rods, the circumference of the cylindrical pipe is further connected with the circumference of the conical cylinder through a plurality of connecting plates, and an interval is arranged between the bottom of the cylindrical pipe and the conical cylinder.

Has the advantages that: when waste water overflowed from the overflow pipe to the first settling zone, under the action of the cylindrical pipe and the conical cylinder, the impact force of water can be reduced, waste water sputtering is prevented, the function of slow settling is achieved, and the optimal settling effect is guaranteed.

Furthermore, the bottoms of the first settling zone and the second settling zone are funnel-shaped.

Has the advantages that: funnel-shaped has certain slope, also has the function of slow sediment to further guarantee the effect of sediment.

Furthermore, the wall of the sedimentation tank corresponding to the second sedimentation zone is provided with an observation port.

Has the beneficial effects that: the sludge amount precipitated in the settling tank can be conveniently observed, so that the sludge can be discharged in time.

Furthermore, the aeration pipe set comprises an aeration pipe and aeration valves connected to the aeration pipe, the aeration valves in the aeration pipe sets which correspond to the water storage tank, the stuffing box and the dosing box one to one are connected to the same aeration main pipe together, and an air source interface is arranged on the aeration main pipe.

Has the advantages that: the number of the used aeration pipes and the number of the used air sources can be reduced.

Drawings

FIG. 1 is a schematic perspective view of one of the viewing angles of the apparatus for degrading COD in wastewater according to the present invention;

FIG. 2 is a schematic perspective view of another view of the apparatus for degrading COD in wastewater according to the present invention;

FIG. 3 is a schematic perspective view of another perspective view of the apparatus for degrading COD in wastewater according to the present invention;

FIG. 4 is a front view of the apparatus for degrading COD in wastewater according to the present invention;

FIG. 5 is a rear view of the apparatus for degrading COD in wastewater according to the present invention;

FIG. 6 is a plan view of the apparatus for degrading COD in wastewater according to the present invention;

FIG. 7 is a left side view of the apparatus for degrading COD in wastewater according to the present invention;

FIG. 8 is a right side view of the apparatus for degrading COD in wastewater according to the present invention;

FIG. 9 is a schematic structural view of an anti-scour device of the apparatus for degrading COD in wastewater according to the present invention;

FIG. 10 is a schematic diagram of the wastewater treatment of the COD degradation device of the wastewater.

Description of the reference numerals: 1-a wastewater treatment box body, 2-a transverse clapboard, 3-a longitudinal clapboard, 4-a water storage tank, 5-a stuffing box, 6-a hydrogen peroxide dosing box, 7-an alkaline solution dosing box, 8-a settling box, 9-a first settling zone, 10-a second settling zone, 11-an observation port, 12-an aeration pipe, 13-an aeration valve, 14-an aeration main pipe, 15-an emptying pipe group, 16-a cylindrical pipe, 17-a conical barrel, 18-a connecting rod, 19-a connecting plate, 20-a first PH detector, 21-a second PH detector, 22-a hanging bucket, 23-a supporting leg, 24-a wastewater inlet pipe, 25-a dosing pipe group, 26-an outlet box, 27-an air source interface, 28-an overflow pipe and 29-a secondary wastewater circulating treatment pipe group.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses a COD equipment's in degradation waste water concrete embodiment:

in this example, the degradation of ethylene oxide wastewater is described as an example. As shown in fig. 1 to 8, the equipment for degrading COD in wastewater comprises a wastewater treatment tank 1, and support legs are arranged at four corners of the bottom of the wastewater treatment tank 1. For convenience of description, in this embodiment, the longitudinal direction of the wastewater treatment tank 1 is defined as the left-right direction, and the width direction is defined as the front-back direction. As shown in fig. 3 and 6, a vertical partition plate 3 extending in the left-right direction is provided in the wastewater treatment tank 1, and the vertical partition plate 3 divides the wastewater treatment tank 1 into a front half area and a rear half area. Five transverse partition plates 2 are arranged in the front half area at intervals along the left-right direction to divide the front half area into six compartments, wherein the front four compartments are used for receiving wastewater to form a water storage tank 4, and the rear two compartments form a stuffing box 5. Five transverse partition plates 2 are arranged in the rear half area at intervals along the left-right direction to divide the rear half area into six compartments, wherein from right to left, the front three compartments form a dosing box, the first compartment and the second compartment in the dosing box are hydrogen peroxide dosing boxes 6, and the third compartment is an alkaline solution dosing box 7; from right to left, the fourth and fifth compartments form a settling tank 8, the fourth compartment being a first settling zone 9 of the settling tank 8 and the fifth compartment being a second settling zone 10 of the settling tank 8; the sixth compartment forms the outlet tank 26.

As shown in fig. 1, fig. 2, fig. 3 and fig. 7, a rectangular aeration main pipe 14 is arranged on the periphery of the wastewater treatment tank 1, and an air source interface 27 is arranged on the aeration main pipe 14 and is used for communicating with an aeration source. Aeration pipes 12 are arranged in the aeration main pipe 14 corresponding to all compartments of the water storage tank 4, all compartments of the filling box 5 and all compartments of the dosing box, and an aeration valve 13 is arranged between each aeration pipe 12 and the aeration main pipe 14 so as to control the aeration amount in the corresponding compartment. Similarly, the positions of the periphery of the wastewater treatment box body 1 corresponding to each compartment of the water storage box 4, each compartment of the stuffing box 5, each compartment of the dosing box and two sedimentation areas of the sedimentation box 8 are respectively provided with an emptying pipe group 15, and each emptying pipe group 15 comprises an emptying pipe communicated with the corresponding compartment and an emptying valve connected to the emptying pipe.

As shown in fig. 3, a waste water inlet pipe 24 is connected to the storage tank 4 for receiving the discharged ethylene oxide waste water. Ethylene oxide waste water in the water storage tank 4 is pumped into the stuffing box 5 through a water pump, a first PH detector 20 is arranged in a second compartment of the stuffing box 5, and an acid solution for carbon is added into the first compartment of the stuffing box 5. Wherein the carbon is granular active carbon with the granularity of 90-200 meshes, and the acid solution is sulfuric acid with the volume concentration of 98%. When the ethylene oxide waste water overflows to the second compartment of the stuffing box 5, the PH is detected by the first PH detector 20, and the added acid solution for the carbon is adjusted according to the detected PH value, so that the PH value is kept at 3-4.

As shown in fig. 6, each of the hydrogen peroxide dosing tank 6 and the alkaline solution dosing tank 7 is provided with a dosing tube group 25, an overflow port is provided between the second compartment of the stuffing box 5 and the hydrogen peroxide dosing tank 6, and wastewater overflowing from the overflow port can enter the hydrogen peroxide dosing tank 6. An overflow port is also provided between the alkaline solution dosing tank 7 and the hydrogen peroxide dosing tank 6, and wastewater subjected to oxidation reaction in the hydrogen peroxide dosing tank 6 overflows from the overflow port into the alkaline solution dosing tank 7. In this embodiment, the hydrogen peroxide solution is 40% hydrogen peroxide, and the alkaline solution is sodium hydroxide solution. And a second PH detector 21 is arranged in the alkaline solution dosing tank 7, and the PH of the wastewater in the alkaline solution dosing tank 7 is adjusted under the detection of the second PH detector 21, so that the PH is stabilized at 9-10.

The first settling zone 9 and the second settling zone 10 of the settling tank are communicated with each other, wherein the first settling zone 9 is communicated with the alkaline solution feeding box 7 through an overflow pipe 28, and an overflow port is arranged between the second settling zone 10 and a water outlet box 26. An anti-impact device is arranged in the first settling zone 9, as shown in fig. 6 and 9, the anti-impact device comprises a cylindrical pipe 16 and a conical cylinder 17 coaxially connected below the cylindrical pipe 16, the cylindrical pipe 16 is communicated with an overflow pipe 28, the circumference of the cylindrical pipe 16 is connected with the corresponding box wall of the settling tank 8 through a plurality of connecting rods 18, the circumference of the cylindrical pipe 16 is further connected with the circumference of the conical cylinder 17 through a plurality of connecting plates 19, and an interval is formed between the bottom of the cylindrical pipe 16 and the conical cylinder 17. When the waste water overflows from the overflow pipe 28 to the first precipitation zone 9, the impact force of the water can be reduced under the action of the cylindrical pipe 16 and the conical cylinder 17, the waste water sputtering is prevented, and meanwhile, the slow precipitation function is realized, and the optimal precipitation effect is ensured. As shown in fig. 5, the bottoms of the first settling zone 9 and the second settling zone 10 are funnel-shaped, the funnel is an inverted quadrangular prism, the settling effect is further improved, and the emptying pipe is connected to the side wall of the funnel. In addition, the tank wall of the second sedimentation zone is provided with an observation port 11, which is convenient for observing the amount of sludge sedimentated in the sedimentation tank, so as to discharge the sludge in time. As shown in fig. 7 and 8, a hanging bucket 22 is hooked above the observation port 11 and used for storing a liquid medicine during an experiment.

An overflow port is arranged on the diaphragm between the water outlet tank 26 and the second settling zone 10, and the treated wastewater overflowing from the second settling zone 10 enters the water outlet tank 26 from the overflow port. A third PH detector (not shown) is disposed in the outlet tank 26, and is used for adjusting the PH value of the treated wastewater in the outlet tank to 7, so that the wastewater is discharged from the outlet tank. In order to avoid the unqualified wastewater after the primary treatment, as shown in fig. 1 and 4, a secondary wastewater circulation treatment pipe group 29 is further arranged between the water outlet tank 26 and the water storage tank 4.

In the embodiment, the aeration speed of the aeration pipe is 50-100 r/min, and the whole process of adding hydrogen peroxide is aerated. The adding amount of hydrogen peroxide and alkaline solution is controlled by an air pump.

The wastewater treatment process of the equipment for degrading COD in wastewater of the utility model is shown in figure 10 and specifically comprises: (1) injecting the ethylene oxide wastewater into a water storage tank, and aerating for 3 hours, wherein the aeration rate can be controlled by an aeration valve; (2) overflowing the wastewater into a stuffing box through a flow water pump, adjusting the wastewater through a first pH detector, keeping the pH value within the range of 3-4, and aerating for 4 hours; (3) after the stuffing box of the stuffing box reaches the water level, overflowing to a medicine adding No. 1 box (namely a hydrogen peroxide medicine adding box in the embodiment), adding 40% hydrogen peroxide by the equipment according to the proportion and time through a water pump and a time timer, continuously aerating for 3 hours, and quantitatively adding a proper amount of hydrogen peroxide by the flow timer to achieve full reaction; (4) after the medicine adding tank No. 1 reaches the water level, the medicine adding tank No. 2 overflows to a medicine adding tank No. 1 through an overflow port (namely an alkaline solution adding tank in the embodiment), alkaline liquor is added, the PH value is controlled to be 9-10 through a second PH detector, and aeration is continued; (5) the settling tank overflows to the regulating tank through the overflow port after reaching the water level, and the PH value is regulated to 7 by the PH monitor and then enters the water outlet tank. If the COD value in the waste water after the treatment in the water outlet tank is detected to be not up to the standard, the waste water is transferred into the water storage tank again through the secondary waste water circulating treatment pipe group, and the equipment carries out secondary treatment. Of course, in the specific treatment process, the water outlet tank and the adjusting tank can be integrated into a whole, namely, the pH value is directly adjusted to 7 in the water outlet tank.

Adopt utility model's COD's in the degradation waste water equipment to go the COD in the degradation waste water, the flow is simple, full-automatic, waste water range of application is wide, COD degradation is efficient, mud produces fewly, and is energy-concerving and environment-protective, for follow-up technology reduction load work etc. characteristics. The treatment process is full-automatic overflow treatment in the whole process, the PH value in the ethylene oxide wastewater treatment process is regulated and controlled by a corresponding PH detector, the injection amount of hydrogen peroxide is controlled by an air pump, the injection amount of alkaline solution is made by the air pump, and the equipment is provided with a circulating treatment pipe set. The design of equipment setting tank has the splashproof and deposits the function slowly, can guarantee to deposit the best effect, and there are mud capacity viewing aperture and sewage pipes in the bottom, and waste water is through the water that comes out after deposiing, after COD professional department detects up to standard, but direct discharge municipal administration pipeline.

The utility model discloses a COD's in the degradation waste water equipment integrates the degree height, and area is little, compact structure, and the cost is lower, and is energy-concerving and environment-protective, ability full automatization is handled during waste water treatment.

In other embodiments, four compartments forming the storage tank may be opened in the wastewater treatment tank to form one compartment.

In other embodiments, the water storage tank, the stuffing box, the dosing box, the settling box and the water outlet box may be arranged in the wastewater treatment box body in the left-right direction, and in this case, the vertical partition plate is not required to be arranged.

The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An apparatus for degrading COD in wastewater, comprising:

the water storage tank is communicated with a wastewater inlet pipe;

2. The apparatus of claim 1, wherein the storage tank, the stuffing box, the dosing box, the settling box and the outlet box are integrated into a single wastewater treatment tank.

3. The apparatus for degrading COD in wastewater according to claim 2, wherein the length direction of the wastewater treatment tank is defined as a left-right direction, and the width direction is defined as a front-rear direction, a longitudinal partition plate extending in the left-right direction is provided in the wastewater treatment tank to divide the wastewater treatment tank into a front half zone and a rear half zone, a plurality of transverse partition plates are provided in each of the front half zone and the rear half zone at intervals in the left-right direction to divide the front half zone and the rear half zone into a plurality of compartments, the water storage tank and the stuffing tank are respectively formed by corresponding compartments in the front half zone, and the hydrogen peroxide dosing tank, the alkaline solution dosing tank, the settling tank and the water outlet tank are respectively formed by corresponding compartments in the rear half zone.

4. The apparatus according to any one of claims 1 to 3, wherein the settling tank has a first settling zone and a second settling zone which are communicated with each other, the first settling zone is communicated with the alkaline solution dosing tank through an overflow pipe, an overflow port is arranged between the second settling zone and the water outlet tank, an anti-impact device is arranged in the first settling zone, the anti-impact device comprises a cylindrical pipe and a conical cylinder coaxially connected below the cylindrical pipe, the cylindrical pipe is communicated with the overflow pipe, the circumference of the cylindrical pipe is connected with the corresponding tank wall of the settling tank through a plurality of connecting rods, the circumference of the cylindrical pipe is further connected with the circumference of the conical cylinder through a plurality of connecting plates, and a gap is arranged between the bottom of the cylindrical pipe and the conical cylinder.

5. The apparatus for degrading COD in wastewater according to claim 4, wherein the bottoms of the first settling zone and the second settling zone are funnel-shaped.

6. The apparatus for degrading COD in wastewater according to claim 4, wherein the tank wall of the settling tank corresponding to the second settling zone is provided with an observation port.

7. The apparatus for degrading COD in wastewater according to any one of claims 1 to 3, wherein the aeration pipe set comprises an aeration pipe and aeration valves connected to the aeration pipe, the aeration valves of the aeration pipe sets corresponding to the water storage tank, the filler box and the dosing box are connected to the same aeration main pipe, and an air source connector is arranged on the aeration main pipe.