CN115490401A

CN115490401A - Three-dimensional constructed wetland sewage treatment plant

Info

Publication number: CN115490401A
Application number: CN202211266883.1A
Authority: CN
Inventors: 肖艳; 张欣; 崔贺
Original assignee: Shanghai Municipal Engineering Design Insitute Group Co Ltd
Current assignee: Shanghai Municipal Engineering Design Insitute Group Co Ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2022-12-20

Abstract

The invention provides a three-dimensional constructed wetland sewage treatment device, which comprises a buffer platform, a treatment tank and an ecological tank, wherein the longitudinal section of the buffer platform is in a step shape, the bottom of the inner side of a precipitation tank is provided with an activated carbon layer, the right side of the precipitation tank is provided with a water guide tank, the treatment tank is fixedly arranged on the right side of the buffer platform, an aeration fan and a dosing barrel are fixedly arranged on a support table, a material guide pipe is fixedly arranged above the inner side of the treatment tank, an aeration pipe is fixedly arranged on the inner side of the treatment tank, a pH meter is fixedly arranged on the inner side of the treatment tank, the ecological tank is fixedly arranged on the right side of the treatment tank, and a pump body is fixedly arranged above the ecological tank; the invention solves the problems that the existing artificial wetland sewage treatment device has simple structure, poor water purification treatment effect and no function of aeration treatment on water.

Description

Three-dimensional constructed wetland sewage treatment plant

Technical Field

The invention belongs to the technical field of sewage treatment devices, and particularly relates to a three-dimensional constructed wetland sewage treatment device.

Background

The artificial wetland is a technology for treating sewage and sludge in the process of flowing along a certain direction by using artificially constructed and controlled running ground similar to a marshland and controllably dosing the sewage and the sludge onto the artificially constructed wetland.

CN208454625U chinese patent discloses a sewage treatment plant for constructed wetland, including constructed wetland and processing case, constructed wetland is located the bottom one side of processing the case, and one side of keeping away from constructed wetland on the top of processing the case is equipped with the water inlet, is fixed with the fixed box of perpendicular setting on the one side inner wall that the processing case is close to the water inlet, and one side that the bottom of processing the case is close to the fixed box is equipped with the blow off pipe, is fixed with driving motor on the one side outer wall that the processing case is close to the fixed box, and driving motor's output shaft is connected with the pivot that the level set up. The treatment device has the defects that the device is simple in structure, the water is filtered by a simple filter screen, the water purification treatment effect is poor, and the function of aeration treatment on the water is not realized.

Disclosure of Invention

The invention aims to provide a three-dimensional artificial wetland sewage treatment device, aiming at solving the problems of simple structure, poor water purification effect and no function of aeration treatment on water of the artificial wetland sewage treatment device in the background art.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides a three-dimensional constructed wetland sewage treatment plant, including cushion block, the treatment tank, the ecological pool, the longitudinal section of cushion block is the echelonment, a plurality of precipitation tanks have been seted up on the cushion block, the inboard bottom of precipitation tank is provided with the activated carbon layer, the guiding gutter has been seted up on the right side of precipitation tank, the fixed guide plate that is provided with in the outside of guiding gutter, the right side of cushion block is provided with the treatment tank, the fixed brace table that is provided with in top of treatment tank, the fixed aeration fan that is provided with on the brace table, the bucket of offeing medicine, the fixed passage that is provided with in inboard top of treatment tank, the fixed aeration pipe that is provided with on the inboard of treatment tank, the fixed pH meter that is provided with on the inside wall of treatment tank, the right side of treatment tank is provided with the ecological pool, the inside adsorbed layer that sets up of ecological pool, the fixed pump body that is provided with in ecological pool top.

Furthermore, the dosing barrel consists of an alkaline barrel and an acidic barrel.

Furthermore, a plurality of guide holes are formed in the guide pipes, a plurality of spray heads can be detachably arranged on the guide holes, the aeration pipe is composed of a plurality of groups of transverse pipes and a plurality of groups of longitudinal pipes, the plurality of groups of transverse pipes and the plurality of groups of longitudinal pipes are mutually communicated, a plurality of groups of air holes are formed in the transverse pipes and the longitudinal pipes, and a gauze is fixedly arranged on the surface of each air hole.

Furthermore, the inner sides of the buffer platform, the treatment tank and the ecological tank are coated with impermeable layers.

Furthermore, the upper portion of the inboard of ecological pond is provided with the vegetable layer, and the bottom of the inboard of ecological pond is provided with the gravel layer, and the inboard middle part horizontal direction of ecological pond is fixed and is provided with the denitrification plywood, has evenly seted up a plurality of through-holes on the denitrification plywood.

Furthermore, a water inlet pipe is fixedly arranged at the upper part of the buffer table, a water outlet pipe is fixedly arranged on the right side of the ecological pool, and electromagnetic water valves are fixedly arranged on the water inlet pipe and the water outlet pipe; further preferably, the height of the water outlet pipe is positioned between the denitrification layer plate and the vegetation layer.

The further preferred scheme is that a water pumping pipe of a pump body above the ecological pool extends into the treatment pool, and a water drainage pipe of the pump body extends into a position between a denitrification layer plate and a gravel layer in the ecological pool.

In conclusion, the invention mainly has the following beneficial effects:

1. according to the invention, the longitudinal section of the buffer platform is in a step shape, impurities in water flowing through the buffer platform are precipitated, the impurities in the water are reduced by matching with the use of an active carbon layer, reagents in an alkaline charging bucket and an acidic charging bucket are discharged into a water pool, the pH value of the water body in the treatment pool is adjusted by matching with a pH meter, a vegetable layer in the ecological pool filters and adsorbs organic substances, the purification effect on the water body is improved, a gravel layer is arranged at the bottom of the inner side of the ecological pool and adsorbs the impurities in the water body, a denitrification layer plate is fixedly arranged in the middle of the inner side of the ecological pool in the horizontal direction, a plurality of through holes are uniformly formed in the denitrification layer for reducing the nitrogen content in the water, the circulation of the water body is facilitated, the impurities are adsorbed on the gravel layer, the water body is physically, chemically and biologically purified, and the purification effect on the water body is improved.

2. According to the invention, the aeration fan and the aeration pipe are used in a matched manner, the transverse pipe longitudinal pipe on the aeration pipe is mutually communicated and provided with a plurality of groups of air holes, and the surface of each air hole is provided with the gauze, so that on one hand, the air blown out from the transverse pipe and the longitudinal pipe generates smaller air bubbles in water, the aeration effect in the treatment tank is improved, the reagent put in the treatment tank can be fully mixed with the water body, and on the other hand, impurities are reduced to enter the transverse pipe and the longitudinal pipe to block the transverse pipe and the longitudinal pipe, so that the aeration treatment on the water body is influenced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a schematic structural view of an aeration tube according to the present invention.

Shown in the figure: 1. a buffer table; 2. a treatment tank; 3. an ecological pond; 31. a vegetable layer; 32. a gravel layer; 33. a denitrification layer plate; 4. a settling tank; 5. an activated carbon layer; 6. a baffle; 7. an aeration fan; 8. a medicine feeding barrel; 81. an alkaline charging bucket; 82. an acidic charging bucket; 9. a material guide pipe; 91. a spray head; 10. an aeration pipe; 101. a transverse tube; 102. a longitudinal tube; 103. air holes; 11. a pH meter; 12. a pump body; 13. a water inlet pipe; 14. and (4) a water outlet pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

The sewage is treated by adopting the invention, and the sewage comprises the following main components in percentage by weight: organic matter (COD concentration is 75-120 mg/L) and nitrogen pollutants (total nitrogen concentration is 8-12mg/L, ammonia nitrogen concentration is 8-10mg/L, and nitrate nitrogen concentration is 2-4 mg/L). Referring to fig. 1-3, the three-dimensional constructed wetland sewage treatment device comprises a buffer table 1, a treatment tank 2 and an ecological tank 3, wherein the longitudinal section of the buffer table 1 is in a step shape, 4 sedimentation tanks 4 are arranged on the buffer table 1, an activated carbon layer 5 is arranged at the bottom of the inner side of each sedimentation tank 4, a water guide tank is arranged at the right side of each sedimentation tank 4, a guide plate 6 is fixedly arranged at the outer side of each water guide tank, water discharged from a water inlet pipe 13 is subjected to slow flow treatment, so that impurities in the water flowing through the buffer table 1 are precipitated, the impurities in the water are reduced by matching with the use of the activated carbon layer 5, the water body is further treated in the treatment tank 2 at the later stage conveniently, the treatment tank 2 is fixedly arranged on the right side of the buffer table 1, a support table is fixedly arranged above the treatment tank 2, and an aeration fan 7 and a dosing barrel 8 are fixedly arranged on the support table, the fixed passage 9 that is provided with in inboard top of treatment tank 2, the reagent that will administrate the medicine bucket 8 discharges to in the treatment tank 2 through the passage 9, the fixed aeration pipe 10 that is provided with on the inboard of treatment tank 2, carry out aeration treatment to the water in the treatment tank 2, the fixed pH meter 11 that is provided with on the inside wall of treatment tank 2, make things convenient for the staff to judge the pH value of water in the treatment tank 2, the fixed ecological pool 3 that is provided with on the right side of treatment tank 2, carry out ecological treatment to water, further promote the purifying effect to sewage, the fixed pump body 12 that is provided with in ecological pool 3 top, the drinking-water pipe of pump body 12 stretches to in the treatment tank 2, the drain pipe of pump body 12 stretches to between the denitrification plywood 33 in ecological pool 3, the gravel layer 32, promote the effect of carrying out further purification treatment to the water in ecological pool 3.

Referring to fig. 1, the medicine feeding barrel 8 is composed of an alkaline material barrel 81 and an acidic material barrel 82, an alkaline reagent is put into the alkaline material barrel 81, an acidic reagent is put into the acidic material barrel 82, control valve bodies are fixedly arranged on the corresponding bottoms of the alkaline material barrel 81 and the acidic material barrel 82, and stirring rods are arranged inside the alkaline material barrel 81 and the acidic material barrel 82, so that a user can stir the reagents in the alkaline material barrel 81 and the acidic material barrel 82 conveniently, and discharge amount in the alkaline material barrel 81 and the acidic material barrel 82 is controlled by matching with the use of a pH meter 11, so that the pH value of the water body in the treatment tank 2 reaches a preset range.

Referring to fig. 1 and 3, the material guiding pipes 9 and the air aerating pipes 10 are made of stainless steel, the service lives of the material guiding pipes 9 and the air aerating pipes 10 are prolonged, a plurality of material guiding holes are formed in the material guiding pipes 9, a plurality of spray heads 91 are detachably arranged on the material guiding holes, shower-shaped spraying surfaces are arranged below the spray heads 91, the effect of spraying reagents in the chemical dosing barrels 8 into the treatment tank 2 is improved, the reagents in the alkaline material barrels 81 and the acidic material barrels 82 can be conveniently mixed in the treatment tank 2, the air aerating pipes 10 are composed of a plurality of groups of transverse pipes 101 and a plurality of groups of longitudinal pipes 102, the plurality of groups of transverse pipes 101 and the plurality of groups of longitudinal pipes 102 are communicated with each other, a plurality of groups of air holes 103 are formed in the transverse pipes 101 and the longitudinal pipes 102, gauze nets are fixedly arranged on the surfaces of the air holes 103, the gauze is made of fiberglass fibers and has good acid and alkali resistance properties, the gauze enables air blown out of the transverse pipes 101 and the longitudinal pipes 102 to generate small bubbles in water, the effect of the treatment tank 2 is improved, the reagent and the water body can be fully mixed with the water body in the treatment tank 2, impurities can be reduced, and the water body can be treated, and the aeration pipes 102, and the water body can be blocked, and the water body can be treated.

Buffer table 1, treatment tank 2, ecological pool 3's inboard is scribbled and is equipped with the barrier layer, avoids the water that flows in to run off from buffer table 1, treatment tank 2, ecological pool 3, prevents to pollute groundwater source simultaneously, and further assurance water is at buffer table 1, treatment tank 2, ecological pool 3 can normal purification treatment.

Referring to fig. 1, the upper portion of the inboard of ecological pool 3 is provided with vegetable layer 31, vegetable layer 31 is planted by water, hilling is constituteed, water is planted for the grass of swordfish, hilling is the fungus soil of dephosphorization denitrogenation, vegetable layer 31 filters the absorption to organic matter, promote the purifying effect to the water, the bottom of the inboard of ecological pool 3 is provided with gravel layer 32, gravel layer 32 is little gravel, modified zeolite mixes and forms, adsorb the impurity in the water, the inboard middle part horizontal direction of ecological pool 3 is fixed and is provided with denitrification plywood 33, denitrification plywood 33 is by the plate body that the thiobacillus denitrificans and plastics were made, a plurality of through-holes have evenly been seted up on the denitrification plywood 33 of nitrogen volume in the reduction aquatic, conveniently carry out the circulation of water and deposit the impurity and adsorb on gravel layer 32.

Referring to fig. 1, a water inlet pipe 13 is fixedly arranged at the upper part of the buffer table 1, a water outlet pipe 14 is fixedly arranged on the right side of the ecological pool 3, electromagnetic water valves are fixedly arranged on the water inlet pipe 13 and the water outlet pipe 14, so that a worker can conveniently control the water to enter and exit, the height of the water outlet pipe 14 is positioned between the denitrification layer plate 33 and the vegetable layer 31, and the purified water is discharged.

When the water purification device is used, water discharged from the water inlet pipe 13 is subjected to slow flow treatment through the buffer table 1, the longitudinal section of the buffer table 1 is in a step shape, impurities in the water flowing through the buffer table 1 are precipitated, the impurities in the water are reduced by matching with the use of the activated carbon layer 5, the water body is further treated in the treatment tank 2 conveniently at the later stage, reagents in the alkaline material barrel 81 and the acidic material barrel 82 are discharged into a water tank, the pH meter 11 detects the pH value of the water body in the treatment tank 2, the pH value of the water body in the treatment tank 2 reaches a preset range by controlling the discharge amount of the alkaline material barrel 81 and the acidic material barrel 82, the vegetable layer 31 in the ecological tank 3 filters and adsorbs organic substances, the water purification effect is improved, the gravel layer 32 is arranged at the bottom of the inner side of the ecological tank 3, the impurities in the water body are adsorbed, the denitrification layer 33 is fixedly arranged in the horizontal direction of the middle of the inner side of the ecological tank 3, a plurality of through holes are uniformly formed in the denitrification layer 33 for reducing the nitrogen amount in the water body, the water body is convenient to circulate, the impurities are precipitated to be adsorbed to the gravel layer 32, and the water body is physically purified, and the biological purification effect is improved; aeration fan 7 uses with the cooperation of aeration pipe 10, the vertical pipe 102 of horizontal pipe 101 on the aeration pipe 10 communicates the setting each other and has seted up multiunit gas pocket 103, the surface of gas pocket 103 is provided with the gauze, the gauze makes horizontal pipe 101 on the one hand, the gas that vertical pipe 102 blew out produces less bubble in aqueous, promote the effect of carrying out the aeration in the pond 2 of handling, also make the reagent of puting in the pond 2 of handling carry out abundant mixture with the water, on the other hand reduces impurity and enters into horizontal pipe 101, vertical pipe 102, block up, the influence is to the aeration treatment of water. Through the physical, chemical and biological triple synergistic effect of the embodiment of the invention, various pollution indexes of the water body to be treated are obviously reduced: organic matter (COD concentration is reduced to 14-18 mg/L), nitrogen pollutants (total nitrogen concentration is reduced to 0.7-1.0mg/L, ammonia nitrogen concentration is reduced to 0.5-0.9mg/L, nitrate nitrogen concentration is reduced to 0.1-0.2 mg/L), and the standard of surface water type III in the environmental quality standard of surface water (GB 3838-2002) is met.

Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the embodiments or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a three-dimensional constructed wetland sewage treatment plant, includes cushion block (1), treatment tank (2), ecological pool (3), its characterized in that: the longitudinal section of the buffer table (1) is in a step shape, a plurality of sedimentation tanks (4) are arranged on the buffer table (1), activated carbon layers (5) are arranged at the bottoms of the inner sides of the sedimentation tanks (4), water guide grooves are arranged on the right side of the sedimentation tanks (4), guide plates (6) are fixedly arranged on the outer sides of the water guide grooves, a treatment tank (2) is arranged on the right side of the buffer table (1), a support table is fixedly arranged above the treatment tank (2), an aeration fan (7) and a dosing barrel (8) are fixedly arranged on the support table, a guide pipe (9) is fixedly arranged above the inner side of the treatment tank (2), an aeration pipe (10) is fixedly arranged on the inner side of the treatment tank (2), a pH meter (11) is fixedly arranged on the inner side wall of the treatment tank (2), an ecological tank (3) is arranged on the right side of the treatment tank (2), an adsorption layer is arranged inside the ecological tank (3), and a pump body (12) is fixedly arranged above the inner side of the treatment tank (2).

2. The sewage treatment device of the three-dimensional artificial wetland according to claim 1, characterized in that: the drug feeding barrel (8) consists of an alkaline material barrel (81) and an acidic material barrel (82).

3. The sewage treatment device of the three-dimensional artificial wetland according to claim 1, characterized in that: the material guide pipe (9) is provided with a material guide hole, and the material guide hole is provided with a detachable spray head (91).

4. The sewage treatment device of the three-dimensional artificial wetland according to claim 1, characterized in that: the aeration pipe (10) is composed of a transverse pipe (101) and a longitudinal pipe (102), the transverse pipe (101) and the longitudinal pipe (102) are communicated with each other, air holes (103) are formed in the transverse pipe (101) and the longitudinal pipe (102), and gauze is fixedly arranged on the surfaces of the air holes (103).

5. The sewage treatment device of the three-dimensional artificial wetland according to claim 1, characterized in that: and impermeable layers are coated on the inner sides of the buffer table (1), the treatment tank (2) and the ecological tank (3).

6. The sewage treatment device of the three-dimensional artificial wetland according to claim 1, characterized in that: the adsorption layer arranged in the ecological pool (3) comprises a vegetation layer (31) at the upper part, a gravel layer (32) at the bottom and a denitrification layer plate (33) arranged in the middle part in the horizontal direction; through holes are uniformly formed in the denitrification layer plate (33).

7. The sewage treatment device of the three-dimensional constructed wetland according to claim 1, wherein: the upper portion of cushion stage (1) is fixed and is provided with inlet tube (13), the fixed outlet pipe (14) that is provided with on the right side of ecological pool (3), all fixed electromagnetic water valve that is provided with on inlet tube (13) and outlet pipe (14).

8. The sewage treatment plant of the three-dimensional artificial wetland according to claim 7, characterized in that: the height of the water outlet pipe (14) is positioned between the denitrification layer plate (33) and the vegetation layer (31).

9. The sewage treatment device of the three-dimensional constructed wetland according to claim 1, wherein: the water pumping pipe of the pump body (12) extends into the treatment pool (2), and the water drainage pipe of the pump body (12) extends into the space between the denitrification layer plate (33) and the gravel layer (32) in the ecological pool (3).