CN219259725U

CN219259725U - Efficient composite flow constructed wetland treatment mechanism

Info

Publication number: CN219259725U
Application number: CN202320880331.3U
Authority: CN
Inventors: 雷伟
Original assignee: Hubei Leichuang Environmental Protection Technology Co ltd
Current assignee: Hubei Leichuang Environmental Protection Technology Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-06-27
Anticipated expiration: 2033-04-19

Abstract

The utility model discloses a high-efficiency composite flow constructed wetland treatment mechanism, wherein the inner cavity of a two-stage anaerobic tank device is provided with a hydrophilic combined filling bin and a polyurethane sponge filling bin, a connecting pipe is arranged between the hydrophilic combined filling bin and the polyurethane sponge filling bin, the upper part of the hydrophilic combined filling bin is provided with a first water inlet, the upper part of the polyurethane sponge filling bin is provided with a water outlet pipe, the other end of the water outlet pipe is connected with a modular wetland, and the modular wetland comprises a front subsurface flow wetland, a vertical flow wetland and a rear vertical flow wetland.

Description

Efficient composite flow constructed wetland treatment mechanism

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a high-efficiency composite flow constructed wetland treatment mechanism.

Background

The artificial wetland is a technology for treating sewage and sludge by utilizing the physical, chemical and biological triple synergistic effects of soil, artificial medium, plants and microorganisms in the process of flowing sewage and sludge along a certain direction by manually constructing and controlling the ground similar to the swamp, and controlling the sewage and sludge to be dosed on the constructed wetland. The action mechanism comprises adsorption, detention, filtration, oxidation reduction, precipitation, microbial decomposition, conversion, plant shielding, residue accumulation, transpiration moisture and nutrient absorption and the action of various animals.

The substrate layer of the constructed wetland is the most basic part in constructed wetland construction, on one hand, can provide a carrier for aquatic plants to grow and a stable attachment space for microorganisms, and on the other hand, can directly remove pollutants through the actions of interception, filtration, adsorption, precipitation and the like, and is a main place for sewage treatment in the constructed wetland. As technology advances and research has advanced, a number of different matrix fillers have been developed, with the more common fillers: sand, gravel, steel slag, cinder, medical stone, vermiculite, zeolite, volcanic rock, shale, haydite and the like. Different wetland matrixes have great differences in pollutant removal effect and service life due to different material compositions, particle size distribution, physical structures and the like, and the selection of proper constructed wetland matrix layer materials and a reasonable designed matrix layer structure is a key for constructing the constructed wetland and furthest exerting the sewage purification capability of the constructed wetland. Therefore, we propose a high-efficiency composite flow constructed wetland treatment mechanism.

Disclosure of Invention

The utility model aims to provide a high-efficiency composite flow constructed wetland treatment mechanism so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high-efficient combined flow constructed wetland processing mechanism, includes two-stage anaerobic jar device and modular wetland, two-stage anaerobic jar device inner chamber is provided with hydrophilicity combination filling bin and polyurethane sponge filling bin, be provided with the connecting pipe between hydrophilicity combination filling bin and the polyurethane sponge filling bin, the upper portion of hydrophilicity combination filling bin is provided with first water inlet, the upper portion of polyurethane sponge filling bin is provided with the outlet pipe, the other end of outlet pipe is connected with the modular wetland, the modular wetland includes leading subsurface flow wetland, vertical flow wetland and rear-end vertical flow wetland, all be provided with the baffle between leading subsurface flow wetland, vertical flow wetland and the rear-end vertical flow wetland, set up the water hole on the baffle, one side of modular wetland is connected with the clean water reservoir, leading subsurface flow wetland, vertical flow wetland and rear-end vertical flow wetland are all planted and are emergent aquatic plant.

Preferably, the front subsurface flow wetland comprises a second water inlet and a composite filler layer, wherein the second water inlet is connected with a water outlet pipe, the composite filler layer comprises blast furnace slag, fly ash and a gravel layer which are sequentially arranged from top to bottom, the grain size of the blast furnace slag is 5-20mm, the grain size of the fly ash is 8-25mm, and the grain size of the gravel layer is 25-80mm.

Preferably, the vertical flow wetland comprises a fine sand layer, a coarse sand layer and a crushed stone layer, and the fine sand layer, the coarse sand layer and the crushed stone layer are sequentially arranged in the vertical flow wetland from top to bottom.

Preferably, the rear vertical flow wetland comprises a microorganism immobilization filler layer, a matrix layer and an overflow weir, wherein the microorganism immobilization filler layer, the matrix layer and the overflow weir are sequentially arranged in the rear vertical flow wetland from top to bottom, the matrix layer is activated carbon particles, and the particle size of the activated carbon particles is 50-100mm.

Preferably, the rear vertical flow wetland comprises a microorganism immobilized packing layer, a matrix layer and an overflow weir, wherein the microorganism immobilized packing layer, the matrix layer and the overflow weir are sequentially arranged in the rear vertical flow wetland from top to bottom, the matrix layer is made of activated carbon particles, the particle size of the activated carbon particles is 50-100mm, and one side of the overflow weir is connected with a water purifying pond.

Preferably, polyurethane sponge filler is arranged in the polyurethane sponge filler bin, and the top surface of the polyurethane sponge filler is 8-12cm higher than the central line of the water outlet pipe.

Preferably, the tops of the hydrophilic combined filling bin and the polyurethane sponge filling bin are provided with overhaul holes.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model can purify various types of sewage in cities and rural areas, and has the advantages of high hydraulic load, good treatment effect, reasonable and efficient arrangement of fillers and treatment layers, improved pollutant removal effect and better effluent quality by combining the front subsurface flow wetland, the vertical flow wetland and the rear vertical flow wetland.

2. The utility model cultures microorganisms suitable for treating pollutants with different concentrations through the two-stage anaerobic tank device, thereby efficiently removing the pollutants in sewage.

3. According to the utility model, the polyurethane sponge filler is arranged, so that a proper carrier can be provided for microorganism growth, and a good filtering and removing effect on suspended matters in a water body can be realized.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

FIG. 2 is a schematic diagram of a two-stage anaerobic tank according to the present utility model.

In the figure: 1-two-stage anaerobic tank device; 2-modularized wetland; 3-hydrophilic combined filling bin; 4-polyurethane sponge filling bin; 5-connecting pipes; 6-a first water inlet; 7-a water outlet pipe; 8-prepositioned subsurface flow wetland; 9-vertical flow wetland; 10-postposition of a vertical flow wetland; 11-a separator; 12-water passing holes; 13-a clean water reservoir; 14-emergent aquatic plants; 15-a second water inlet; 16-a composite filler layer; 17-a fine sand layer; 18-coarse sand layer; 19-a crushed stone layer; 20-a water distribution layer; 21-a substrate layer; 22-overflow weir; 23-hydrophilic combined filler; 24-polyurethane sponge filler; 25-manhole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-2, the present utility model provides a technical scheme of a high-efficiency composite flow constructed wetland treatment mechanism: the efficient composite flow constructed wetland treatment mechanism comprises a two-stage anaerobic tank device 1 and a modularized wetland 2, wherein the inner cavity of the two-stage anaerobic tank device 1 is provided with a hydrophilic combined filling bin 3 and a polyurethane sponge filling bin 4, a connecting pipe 5 is arranged between the hydrophilic combined filling bin 3 and the polyurethane sponge filling bin 4, a first water inlet 6 is arranged at the upper part of the hydrophilic combined filling bin 3, a water outlet pipe 7 is arranged at the upper part of the polyurethane sponge filling bin 4, the other end of the water outlet pipe 7 is connected with the modularized wetland 2, the modularized wetland 2 comprises a front subsurface flow wetland 8, a vertical flow wetland 9 and a rear vertical flow wetland 10, a baffle 11 is arranged among the front subsurface flow wetland 8, the vertical flow wetland 9 and the rear vertical flow wetland 10, a water outlet hole 12 is formed in the baffle 11, one side of the modularized wetland 2 is connected with a water purifying pool 13, the front subsurface flow wetland 8, the vertical flow wetland 9 and the rear vertical flow wetland 10 are respectively planted with emergent aquatic plants 14, the front subsurface flow wetland 8 comprises a second water inlet 15 and a composite filler layer 16, the second water inlet 15 is connected with the water outlet pipe 7, the composite filler layer 16 comprises blast furnace slag, fly ash and gravel layers which are sequentially arranged from top to bottom, the grain size of the blast furnace slag is 5-20mm, the grain size of the fly ash is 8-25mm, the grain size of the gravel layers is 25-80mm, the vertical flow wetland 9 comprises a fine sand layer 17, a coarse sand layer 18 and a crushed stone layer 19, the fine sand layer 17, the coarse sand layer 18 and the crushed stone layer 19 are sequentially arranged in the vertical flow wetland 8 from top to bottom, the rear vertical flow wetland 10 comprises a microorganism immobilization filler layer 20, a matrix layer 21 and an overflow weir 22, the microorganism immobilization filler layer 20, the matrix layer 21 and the overflow weir 22 are sequentially arranged in the rear vertical flow wetland 10 from top to bottom, the matrix layer 21 is activated carbon particles, the particle size of the activated carbon particles is 50-100mm, one side of the overflow weir 22 is connected with the water purifying pond 13, hydrophilic combined filler 23 is arranged in the hydrophilic combined filler bin 3, the top surface of the hydrophilic combined filler 23 is 0.1-0.2m away from the central line of the first water inlet 6, the bottom surface of the hydrophilic combined filler 23 is 0.1-0.2m away from the bottom of the inner cavity of the hydrophilic combined filler bin 3, polyurethane sponge filler 24 is arranged in the polyurethane sponge filler bin 4, the top surface of the polyurethane sponge filler 24 is 8-12cm higher than the central line of the water outlet pipe 6, and overhaul holes 25 are formed in the tops of the hydrophilic combined filler bin 3 and the polyurethane sponge filler bin 4.

The use principle is as follows: during operation, sewage enters the two-stage anaerobic tank device 1 through the first water inlet 6, the sewage is subjected to pollutant degradation, gravity precipitation and suspended matter adsorption removal in the hydrophilic combined filler bin 3 through the hydrophilic combined filler 23, microorganisms growing on the hydrophilic combined filler perform anaerobic reaction on pollutants in the water body, macromolecular pollutants are decomposed to a certain extent, partial floating micro suspended matters in the water body are adsorbed on the surface of the hydrophilic filler, the concentration of suspended matters in the water is also reduced, then the sewage enters the polyurethane sponge filler bin 4 through the connecting pipe 5, the pollutants in the water are degraded by microorganisms on the sponge filler, and the degradation effect of the microorganisms on the low-concentration pollutants is better compared with that of microorganisms on the hydrophilic combined filler of the previous bin. Suspended substances in the water body are filtered and adsorbed by polyurethane sponge seasonings, so that the concentration of suspended substances in water discharged from the two-stage anaerobic tank device is low and controlled below 100mg/L, sewage enters the modular wetland through the water outlet pipe 7, part of pollutants in the sewage are adsorbed and removed by the composite filler layer 16 in the front subsurface flow wetland 8, the emergent aquatic plants 14 convey oxygen in air to the front subsurface flow wetland 8 through developed root systems, a good condition is created for degrading the pollutants in the water by microorganisms, the sewage enters the vertical flow wetland 9, residual pollutants in the sewage are adsorbed and degraded by the fine sand layer 17, the coarse sand layer 18 and the crushed stone layer 19 in the vertical flow wetland 9, the sewage enters the rear vertical flow wetland 10, the concentration of the pollutants in the water is low at this time, part of the pollutants are still absorbed by the root of the emergent aquatic plants 14, the utility model can purify various types of sewage in cities and rural areas by carrying out adsorption removal and degradation operations through the microorganism immobilized filler layer 20 and the matrix layer 21 in the postposition vertical flow wetland 10 and then discharging the sewage into the clean water tank 13 through the overflow weir 22, has high hydraulic load and good treatment effect by combining the preposition subsurface flow wetland, the vertical flow wetland and the postposition vertical flow wetland, has reasonable and efficient arrangement of the filler and the treatment layer, improves the pollutant removal effect, and has better effluent quality.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high-efficient compound flow constructed wetland treatment mechanism which characterized in that: including two-stage anaerobism jar device (1) and modular wetland (2), two-stage anaerobism jar device (1) inner chamber is provided with hydrophilicity combination filling bin (3) and polyurethane sponge filling bin (4), be provided with connecting pipe (5) between hydrophilicity combination filling bin (3) and polyurethane sponge filling bin (4), the upper portion of hydrophilicity combination filling bin (3) is provided with first water inlet (6), the upper portion of polyurethane sponge filling bin (4) is provided with outlet pipe (7), the other end of outlet pipe (7) is connected with modular wetland (2), modular wetland (2) are including leading subsurface flow wetland (8), vertical flow wetland (9) and rearmounted vertical flow wetland (10), all be provided with baffle (11) between leading subsurface flow wetland (8), vertical flow wetland (9) and the rear vertical flow wetland (10), water hole (12) have been seted up on baffle (11), one side of module wetland (2) is connected with clear water pond (13), leading subsurface flow wetland (9) and vertical flow wetland (10) are planted in the same place as plant standing wetland (14).

2. The efficient composite flow constructed wetland treatment mechanism according to claim 1, wherein: the preposed subsurface flow wetland (8) comprises a second water inlet (15) and a composite filler layer (16), wherein the second water inlet (15) is connected with a water outlet pipe (7), the composite filler layer (16) comprises blast furnace slag, fly ash and a gravel layer which are sequentially arranged from top to bottom, the grain size of the blast furnace slag is 5-20mm, the grain size of the fly ash is 8-25mm, and the grain size of the gravel layer is 25-80mm.

3. The efficient composite flow constructed wetland treatment mechanism according to claim 1, wherein: the vertical flow wetland (9) comprises a fine sand layer (17), a coarse sand layer (18) and a crushed stone layer (19), wherein the fine sand layer (17), the coarse sand layer (18) and the crushed stone layer (19) are sequentially arranged in the vertical flow wetland (9) from top to bottom.

4. The efficient composite flow constructed wetland treatment mechanism according to claim 1, wherein: the rear vertical flow wetland (10) comprises a microorganism immobilization filler layer (20), a matrix layer (21) and an overflow weir (22), wherein the microorganism immobilization filler layer (20), the matrix layer (21) and the overflow weir (22) are sequentially arranged in the rear vertical flow wetland (10) from top to bottom, the matrix layer (21) is made of activated carbon particles, the particle size of the activated carbon particles is 50-100mm, and one side of the overflow weir (22) is connected with a water purifying pond (13).

5. The efficient composite flow constructed wetland treatment mechanism according to claim 1, wherein: the inside of hydrophilic combination filling bin (3) is provided with hydrophilic combination filler (23), hydrophilic combination filler (23) top surface is apart from first water inlet (6) central line 0.1-0.2m, hydrophilic combination filler (23) bottom surface is apart from hydrophilic combination filling bin (3) inner chamber bottom 0.1-0.2m.

6. The efficient composite flow constructed wetland treatment mechanism according to claim 1, wherein: polyurethane sponge filler (24) is arranged in the polyurethane sponge filler bin (4), and the top surface of the polyurethane sponge filler (24) is 8-12cm higher than the central line of the water outlet pipe (7).

7. The efficient composite flow constructed wetland treatment mechanism according to claim 1, wherein: the tops of the hydrophilic combined filling bin (3) and the polyurethane sponge filling bin (4) are respectively provided with a manhole (25).