CN213805222U

CN213805222U - Bank protection sewage purification structure of urban river

Info

Publication number: CN213805222U
Application number: CN202022481419.7U
Authority: CN
Inventors: 华明伟; 张明峰; 周钦
Original assignee: Zhaoda Lianhe Engineering Technology Co ltd
Current assignee: Zhaoda Lianhe Engineering Technology Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-27
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a shore protection sewage purification structure of city river course, hug closely the waist rail of carrier wall including vertical carrier wall and river course bottom, be provided with the intercommunication blow off pipe on the carrier wall, the mouth of pipe below of blow off pipe is provided with sewage purification case, sewage purification case from the top down has set gradually rubble filter layer, sand and soil filter layer, be provided with the shore protection that is the echelonment on the waist rail, soil filter layer is inconsistent with the shore protection, uses sewage purification case to filter sewer exhaust sewage, prevents that sewage from directly getting into the river course and polluting the river.

Description

Bank protection sewage purification structure of urban river

Technical Field

The utility model belongs to city water conservancy construction field, more specifically the revetment sewage purification structure of a city river course that says so.

Background

Along with the development of modern cities, in order to meet the requirements of people on the quality of urban life, the city is more and more diversified in modification and construction and more attractive in appearance, and river channels can penetrate through cities in many cities, so that the river channels are modified to be important parts in urban water conservancy construction. At present, riverways in many cities are polluted to different degrees, for example, surface runoff after rainfall scours the ground to form sewage, or rainwater enters a sewer and forms sewage after the sewer is polluted, and the sewage is directly discharged into rivers to cause river water pollution.

Traditional river regulation engineering from the purpose of stabilizing the river course, often adopts the measure of some bank slope protections, like the stone is built by mortar, concrete slab etc. then add soil on the shore protection that the concrete was built by laying bricks by mortar, plant the plant on soil, can only play certain purification effect to the sewage of surface runoff to a certain extent, and can't purify the sewage that the sewer formed, and river still can be polluted during the rainfall.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a bank protection sewage purification structure of city river course, it can effectively filter the interior exhaust sewage of sewer, and reduces the pollution of sewage to the river.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a shore protection sewage purification structure of city river course, hugs closely the waist rail of carrier wall including vertical carrier wall and river course bottom, be provided with the intercommunication blow off pipe on the carrier wall, the mouth of pipe below of blow off pipe is provided with sewage purification case, sewage purification case from the top down has set gradually rubble filter layer, sand and soil filter layer, be provided with the shore protection that is the echelonment on the waist rail, soil filter layer is inconsistent with the shore protection.

Furthermore, the revetment comprises a plurality of hollow revetment building blocks, planting grooves communicated with the inside of the revetment building blocks are formed in the revetment building blocks, soil is filled in the planting grooves and the inside of the revetment building blocks, plants are planted in the planting grooves, and each planting groove is communicated with two vertically adjacent planting grooves.

Furthermore, a sludge layer is arranged between the revetment and the bearing wall, sludge holes are uniformly distributed in the river course direction on the waist beam, the upper part of the sludge layer is communicated with soil in the revetment blocks, and the lower part of the sludge layer passes through the sludge holes and is communicated with a river bed.

Furthermore, a horizontal through hole is formed in the bottommost revetment block of the revetment, and a geotextile nonwoven fabric is arranged between the through hole and the sludge layer.

Furthermore, a stop block is arranged on the edge of the planting groove.

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

1. the sewage purification box is used for filtering the sewage discharged by the sewer, so that the sewage is prevented from directly entering a river channel to pollute river water;

2. the stepped revetment consisting of the revetment blocks can effectively improve the protection capability of the protection wall;

3. carry out the secondary filter through plant in the revetment piece and soil to sewage to further improve the quality of water of sewage, greatly reduced the pollution to the river.

Drawings

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

FIG. 2 is a schematic structural view of a sewage purifying tank of the present invention;

fig. 3 is a top view of the middle revetment block of the present invention;

fig. 4 is a schematic cross-sectional view a-a of fig. 3.

Reference numerals: 1. a load-bearing wall; 2. a wale; 3. a blow-off pipe; 4. a sewage purification tank; 5. a macadam filtration layer; 6. a sand filtration layer; 7. a soil filtration layer; 8. building blocks for bank protection; 9. planting grooves; 10. a plant; 11. a sludge layer; 12. sludge holes; 13. a through hole; 14. geotextile non-woven fabrics; 15 stop blocks.

Detailed Description

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.

The present invention is further explained with reference to fig. 1 to 4.

The utility model provides a shore protection sewage purification structure of city river course, hugs closely waist rail 2 of carrier wall 1 including vertical carrier wall 1 and river course bottom, be provided with the blow off pipe 3 of intercommunication sewer on the carrier wall 1, the mouth of pipe below of blow off pipe 3 is provided with sewage purification case 4, sewage purification case 4 has set gradually rubble filter layer 5, sand and soil filter layer 6 and soil filter layer 7 from the top down, be provided with the shore protection that is the echelonment on the waist rail 2, soil filter layer 7 is inconsistent with the shore protection.

As shown in fig. 1 and 2, blow off pipe 3 stretches out bearing wall 1, during the rainfall, the sewer is collected the rainwater, then discharge sewage through blow off pipe 3, and exhaust sewage flows into sewage purification box 4 under the action of gravity in to in proper order through rubble filter layer 5, sand and soil filter layer 6 and the soil filter layer 7 on sewage purification box 4, then the water after the purification flows into the river course through the shore protection in, through sewage purification box 4's multiple filtration, thereby reduce the pollution of sewage to the urban river course, protect urban environment.

The gravel filtering layer 5 consists of a plurality of large gravel or stones, namely, the space between the gravel is large, so that large solid pollutants (such as plastic bags, dead leaves and dead branches and other gravel) in the sewage can be filtered, and the liquid sewage can rapidly pass through; the sand and soil filter layer 6 is formed by mixing a large amount of gravel and a small amount of soil, and after liquid sewage enters the sand and soil filter layer 6, fine solid particles (such as sand) in the sewage can be filtered, so that the sewage passing through the sand and soil filter layer 6 is further filtered; the soil filter layer 7 is composed of different soils, and a plurality of microorganisms exist in the soils, when sewage enters the soil filter layer 7, the soil can be wet, harmful substances in the sewage can be absorbed by the soil (such as phosphates causing water eutrophication), and the microorganisms in the soil decompose putrefactive substances in the sewage, so that the quantity of sewage bacteria is reduced. After the multi-layer filtration, the pollution of the sewage to river water is reduced, and the river channel environment is improved.

Preferably, sewage purification case 4 is inconsistent with carrier wall 1 for sewage through surface runoff falls down the back from the river bank and equally can get into sewage purification case 4 and filter the back and get into the river, reduces the pollution of surface runoff sewage.

Preferably, ferns or bryophytes 10 are arranged in the soil filter layer 7, and the ferns or bryophytes 10 can absorb phosphates in the soil, so that the saturation of the soil filter layer 7 is reduced, and the service life of the sewage purification box 4 is prolonged.

As shown in fig. 3 and 4, the revetment preferably includes a plurality of hollow revetment blocks 8, each revetment block 8 is provided with a planting groove 9 communicated with the inside, the planting grooves 9 and the revetment blocks 8 are filled with soil, plants 10 are planted in the planting grooves 9, each planting groove 9 is communicated with two adjacent planting grooves 9, when a water body filtered by the sewage purification tank 4 flows out of the sewage purification tank 4, the water body flows into the revetment blocks 8, and the soil in the revetment blocks 8 and the plants 10 in the planting grooves 9 further purify the water body, so as to further reduce pollution to river water.

As shown in fig. 1, preferably, the bottom revetment block 8 is completely submerged in river water, and aquatic plants 10 can be planted in the planting grooves 9 of the revetment block 8, so that the river water is directly purified by the aquatic plants 10, thereby improving the river environment.

As shown in fig. 1, a sludge layer 11 is preferably provided between the revetment and the load-bearing wall 1 in this embodiment, the wale 2 is provided with sludge holes 12 which are uniformly distributed along the river course direction, the upper part of the sludge layer 11 is communicated with the soil in the bank protection building block 8, the lower part of the sludge layer 11 passes through the sludge holes 12 to be communicated with the river bed, when a large amount of water filtered by the sewage purifying box 4 enters the soil of the bank protection building block 8, the water body seeps downwards through the soil and enters the sludge layer 11, so that the water body which is not filtered by the soil in the bank protection building block 8 is filtered by the sludge layer 11, and the water body filtered by the sludge layer 11 can directly permeate downwards to enter the riverbed, then one part enters river water, and the other part continuously permeates downwards into underground water and finally is filtered by the sludge layer 11, so that the water quality of the filtered water body is improved, and the pollution to the river water, namely the underground water is reduced.

As shown in fig. 1, the bank protection block 8 at the bottommost part of the bank protection is preferably provided with a horizontal through hole 13, and a geotextile 14 is provided between the through hole 13 and the sludge layer 11, so that the geotextile 14 can isolate the sludge in the sludge layer 11 from the river water, and allow people to freely pass through the geotextile 14, while the sludge cannot pass through the geotextile 14, i.e., the sludge layer 11 exchanges water with the river water through the through hole 13 on the bank protection block 8, and the loss of the sludge is reduced by the geotextile 14, thereby preventing the reduction of the filtering effect of the sludge layer 11.

As shown in fig. 1, the edge of the planting groove 9 in the embodiment is preferably provided with a stop block 15, so that each revetment block 8 can store a certain amount of water, and the revetment blocks 8 can purify and filter more sewage, and meanwhile, the amount of sewage directly entering river water is reduced, the pollution degree of the sewage to the river water is reduced, and the river environment is improved.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a shore protection sewage purification structure in city river course, hugs closely the waist rail of carrier wall including vertical carrier wall and river course bottom, be provided with intercommunication blow off pipe on the carrier wall, its characterized in that: the sewage purification box is characterized in that a sewage purification box is arranged below the pipe orifice of the sewage discharge pipe, a broken stone filter layer, a sand filter layer and a soil filter layer are sequentially arranged under the sewage purification box from top to bottom, a stepped revetment is arranged on the waist beam, and the soil filter layer is inconsistent with the revetment.

2. The revetment sewage purification structure of an urban river according to claim 1, wherein: the revetment comprises a plurality of hollow revetment building blocks, the revetment building blocks are provided with planting grooves communicated with the inside, soil is filled in the planting grooves and the revetment building blocks, plants are planted on the planting grooves, and each planting groove is communicated with two adjacent planting grooves from top to bottom.

3. The revetment sewage purification structure of an urban river according to claim 2, wherein: a sludge layer is arranged between the revetment and the bearing wall, sludge holes are uniformly distributed on the waist beam along the direction of a river channel, the upper part of the sludge layer is communicated with soil in the revetment blocks, and the lower part of the sludge layer passes through the sludge holes and is communicated with a river bed.

4. The revetment sewage purification structure of an urban river according to claim 3, wherein: the bank protection building block at the bottommost part of the bank protection is provided with a horizontal through hole, and a geotechnical non-woven fabric is arranged between the through hole and the sludge layer.

5. The revetment sewage purification structure of an urban river according to claim 4, wherein: and a stop block is arranged on the edge of the planting groove.