CN215756905U

CN215756905U - Ecological interception system for purifying sewage

Info

Publication number: CN215756905U
Application number: CN202121433471.3U
Authority: CN
Inventors: 谢尚侃; 李奎
Original assignee: Zhejiang Lvkai Environmental Protection Science & Technology Co ltd
Current assignee: Zhejiang Lvkai Environmental Protection Science & Technology Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-02-08
Anticipated expiration: 2031-06-25

Abstract

The utility model relates to an agricultural pollution intercepting facility and discloses an ecological intercepting system for purifying sewage, which comprises pine piles inserted into a river bank ramp, wherein the pine piles and the river bank ramp form a ditch, water seepage cloth is arranged in the ditch, a backfill soil layer and a bone material layer are respectively filled in the water seepage cloth from top to bottom, and an aquatic plant layer is planted on the backfill soil layer. The aggregate layer comprises a crushed stone layer and a ceramsite layer, and the crushed stone layer is arranged above the ceramsite layer. This ecological interception system can carry out the preliminary sedimentation to sewage and handle, improves sewage treatment capacity. The ditch in the ecological interception system is simple to form, people only need to insert the treated pine piles into the river bank ramp side by side, and do not need to dig the ditch like the traditional interception system and then lay concrete. Farmland water flowing into water along the river bank can be decomposed and purified by the aquatic plants, and the aggregate layer is used for assisting the aquatic plants in purifying the farmland water and can adsorb harmful elements, bacteria and mineralized water quality in the farmland water.

Description

Ecological interception system for purifying sewage

Technical Field

The utility model relates to an agricultural pollution interception facility, in particular to an ecological interception system for purifying sewage.

Background

The ecological ditch has a good purification effect on agricultural non-point source pollutants, and is a technical means for effectively controlling agricultural non-point source pollution, which is suitable for national conditions and regional characteristics of China. The farmland ditches in China are numerous and uniform, and if the ditch wetland with the intercepting function is built by utilizing the existing farmland ditches, the risk that the farmland runs off N, P and enters water can be reduced. However, when rainstorm occurs, the drainage quantity of the channel is large, the hydraulic retention time is short, the absorption and interception effects of the ecological channel on nitrogen and phosphorus are greatly reduced, a large amount of high-concentration farmland drainage directly enters a river channel or a subsequent water treatment unit, and the pollutant load of the river channel or the subsequent water treatment unit is greatly increased. How to guarantee to reduce the concentration of nitrogen phosphorus pollutant before torrential rain runoff enters the river course becomes the problem that needs urgent solution at present.

At present, ditches are dug between farmlands and riverways, for example, a renewable filler-plant combined ditch-slope protection nitrogen and phosphorus ecological interception system with application number of 201511031431.5 discloses that concrete impermeable building blocks are tightly arranged on the peripheral wall and the bottom of the ditch through the connection of bumps and grooves, leakage is effectively prevented, slope protection plants or aquatic plants are planted in hollow parts, and dense plant stems, leaves and roots can effectively filter and intercept suspended matters in farmland runoff and absorb intercepted nutrients such as nitrogen and phosphorus. Meanwhile, a ditch packing layer is laid at the bottom of the ditch, so that the formation and growth of a biological film are facilitated. Such interception systems are too costly and the purification effect is not particularly desirable.

SUMMERY OF THE UTILITY MODEL

Aiming at the defect of high cost of the ecological interception system in the prior art, the utility model provides the ecological interception system for purifying sewage.

In order to solve the technical problem, the utility model is solved by the following technical scheme:

an ecological intercepting system for purifying sewage comprises pine piles inserted into a river bank ramp, wherein the pine piles and the river bank ramp form a ditch, water seepage cloth is placed in the ditch, a backfill soil layer and a bone material layer are respectively filled in the water seepage cloth from top to bottom, and an aquatic plant layer is planted on the backfill soil layer. The ditch in the ecological intercepting system is simple to form, people only need to insert the treated pine piles into the river bank ramp side by side, and do not need to dig the ditch like the traditional intercepting system and then lay concrete. Farmland water flowing into water along the river bank can be decomposed and purified by the aquatic plants, and the aggregate layer is used for assisting the aquatic plants in purifying the farmland water and can adsorb harmful elements, bacteria and mineralized water quality in the farmland water.

Preferably, the aggregate layer comprises a crushed stone layer and a ceramsite layer, and the crushed stone layer is arranged above the ceramsite layer. The macadam can prolong the water flow path of the farmland water, so that the purification time of the ecological interception system on the farmland water is prolonged, the ceramsite can adsorb harmful elements, bacteria and mineralized water in the farmland water, and the macadam and the ceramsite are matched for use to improve the purification effect of the farmland water.

Preferably, the diameter of the crushed stone in the crushed stone layer is between 1mm and 10mm, and the diameter of the ceramsite in the ceramsite layer is between 3mm and 5 mm. Within the diameter range, the crushed stone water-fixing effect is better, the quantity of the ceramsite is large, the gap between the adjacent ceramsite is small, and the purifying effect of the ceramsite layer is better.

Preferably, the gaps between adjacent crushed stones in the crushed stone layer are filled with zeolite or volcanic rock. The crushed stone layer fixes water in the crushed stone layer, so that organic matters, ammonia nitrogen, heavy metals and other pollutants in the water can be removed by the zeolite or the volcanic rock.

Preferably, the gaps between adjacent ceramic grains in the ceramic grain layer are filled with zeolite or volcanic rock. The zeolite or the volcanic rock is matched with the ceramsite, so that the water purification effect of the ceramsite layer is better.

Preferably, the water-permeable cloth is water-permeable geotextile, and the thickness of the water-permeable cloth is between 1mm and 2 mm.

Preferably, the surface of the pine stump is covered with a carbonized layer. The carbonized pine stump is not easy to corrode, the stability of the ditch is good, and the service life of the pine stump is greatly prolonged.

Preferably, the device also comprises a sewage channel and a sedimentation tank communicated with the sewage channel, wherein the sedimentation tank is connected with a water distribution pipe extending along the channel, and the water distribution pipe is arranged above the backfill soil layer.

Due to the adoption of the technical scheme, the utility model has the remarkable technical effects that:

this ecological interception system can carry out the preliminary sedimentation to sewage and handle, improves sewage treatment capacity. Meanwhile, the ditch in the ecological intercepting system is simple to form, people only need to insert the treated pine piles into the river bank ramp side by side, and do not need to dig the ditch like the traditional intercepting system and then lay concrete. The farmland water flowing into the water along the river bank can be decomposed, purified and purified by the aquatic plants and the aeration device. The gravel layer and the ceramsite layer are used for assisting the aquatic plants in purifying the farmland water, and can adsorb and purify harmful elements, bacteria and mineralized water in the farmland water.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic plan layout structure of the present invention.

The names of the parts indicated by the numerical references in the above figures are as follows:

1-pine pile

2-channel

3-water permeable cloth

4-backfill soil layer

5-aggregate layer

6-aquatic plant layer

7-sewer

8-sedimentation tank

9-water distribution pipe

51-rubble layer and 52-ceramsite layer

Detailed Description

The utility model will be described in further detail below with reference to the accompanying figures 1-2 and examples.

Example 1

An ecological intercepting system for purifying sewage comprises pine piles 1 inserted into a river bank ramp, wherein the pine piles 1 form a ditch 2 with the river bank ramp, and a plurality of pine piles 1 are connected together side by side so as to form a pine wall. The ditch 2 has laid infiltration cloth 3, infiltration cloth 3 is to last to fill respectively back-filling soil layer 4, aggregate layer 5 down, infiltration cloth 3 is arranged in intercepting the great pollutant of diameter in the bank earth on the one hand, its on the other hand is used for pinning back-filling soil layer 4 and aggregate layer 5, prevent back-filling soil layer 4 and aggregate layer 5 loss, it has aquatic plant layer 6 to plant on back-filling soil layer 4, aquatic plant layer 6 is planted has pasture and water, it can directly absorb the partial organic matter in the farmland aquatic, the farmland water can permeate aggregate layer 5 and further purify, what plant in aquatic plant layer 6 is the iris, what aquatic plant layer 6 planted in other embodiments is canna. The ditch 2 in the ecological intercepting system is simple in forming, people only need to insert the treated pine piles 1 into a river bank ramp side by side, and do not need to dig a ditch like the traditional intercepting system and then lay concrete. Farmland water flowing into water along the river bank can be decomposed and purified by the aquatic plants, and the aggregate layer 5 is used for assisting the aquatic plants in purifying the farmland water and can adsorb harmful elements, bacteria and mineralized water quality in the farmland water.

The aggregate layer 5 comprises a crushed stone layer 51 and a ceramsite layer 52, and the crushed stone layer 51 is arranged above the ceramsite layer 52. The gravel in the gravel layer 51 can prolong the water flow path of the farmland water, so that the purification time of the ecological interception system on the farmland water is prolonged, the ceramsite in the ceramsite layer 52 can adsorb harmful elements, bacteria and mineralized water in the farmland water, and the gravel and the ceramsite are matched for use to improve the purification effect of the farmland water.

The diameter of the crushed stone in the crushed stone layer 51 is between 1mm and 10mm, the diameter of the ceramsite in the ceramsite layer 52 is between 3mm and 5mm, and in the diameter range, the crushed stone has better water-fixing effect, the quantity of the ceramsite is large, the gap between the adjacent ceramsite is small, and the purification effect of the ceramsite layer is better.

The gaps between adjacent crushed stones in the crushed stone layer 51 are filled with zeolite. The crushed stone layer 51 fixes water therein, so that the zeolite can remove pollutants such as organic matters, ammonia nitrogen, heavy metals and the like in the water.

The gaps between adjacent ceramic grains in the ceramic grain layer 52 are filled with zeolite. The zeolite is matched with the ceramsite, so that the water purifying effect of the ceramsite layer 52 is better.

The water seepage cloth 3 is water seepage geotextile, and the thickness of the water seepage cloth 3 is 1 mm.

The surface of the pine pile 1 is covered with a carbonized layer, the carbonized pine pile 1 is not easy to corrode, the stability of the ditch 2 is good, and the service life of the pine pile 1 is greatly prolonged.

The ecological interception system also comprises a sewage channel 7 and a sedimentation tank 8 communicated with the sewage channel 7, and the sedimentation tank 8 firstly carries out sedimentation treatment on sewage in the sewage channel 7 so as to separate solid from liquid in the sewage. The sedimentation tank 8 is connected with a water distribution pipe 9 extending along the ditch 2, and the water distribution pipe 9 is arranged above the backfill soil layer 4. The liquid sewage separated from the sedimentation tank 8 flows into the aquatic plant layer 6 through the water distribution pipe 9, and the liquid sewage is purified through the aquatic plant layer 6, the rubble layer 51 and the ceramic particle layer 52 in sequence.

Example 2

Example 2 has substantially the same characteristics as example 1 except that the water-permeable cloth 3 is a water-permeable geotextile and the thickness of the water-permeable cloth 3 is 1.5 mm.

Example 3

Example 3 has substantially the same characteristics as example 1, except that the water-permeable cloth 3 is a water-permeable geotextile and the thickness of the water-permeable cloth 3 is 2 mm.

Example 4

Example 4 has substantially the same characteristics as example 1 except that the gaps between adjacent crushed stones in the crushed stone layer 51 are filled with volcanic rocks. Volcanic rock is filled between gaps of adjacent ceramic grains in the ceramic grain layer 52.

Example 5

Example 4 has substantially the same characteristics as example 1 except that the gaps between adjacent crushed stones in the crushed stone layer 51 are filled with zeolite. Volcanic rock is filled between gaps of adjacent ceramic grains in the ceramic grain layer 52.

Example 6

Example 6 has substantially the same characteristics as example 1 except that the gaps between adjacent crushed stones in the crushed stone layer 51 are filled with volcanic rocks. The gaps between adjacent ceramic grains in the ceramic grain layer 52 are filled with zeolite.

Claims

1. An ecological interception system for purifying sewage is characterized in that: the water seepage soil layer is characterized by comprising pine piles (1) inserted into a river bank ramp, wherein ditches (2) are formed by the pine piles (1) and the river bank ramp, water seepage cloth (3) is placed in the ditches (2), the water seepage cloth (3) is filled with a backfill soil layer (4) and a bone material layer (5) from top to bottom, and an aquatic plant layer (6) is planted on the backfill soil layer (4).

2. The ecological intercepting system for purifying sewage according to claim 1, wherein: the aggregate layer (5) comprises a crushed stone layer (51) and a ceramsite layer (52), and the crushed stone layer (51) is arranged above the ceramsite layer (52).

3. The ecological intercepting system for purifying sewage according to claim 2, wherein: the diameter of the broken stone in the broken stone layer (51) is between 1mm and 10mm, and the diameter of the porcelain granules in the porcelain granule layer (52) is between 3mm and 5 mm.

4. The ecological intercepting system for purifying sewage according to claim 2, wherein: the gaps between adjacent broken stones in the crushed stone layer (51) are filled with zeolite or volcanic rock.

5. The ecological intercepting system for purifying sewage according to claim 2, wherein: the gaps between the adjacent ceramic grains in the ceramic grain layer (52) are filled with zeolite or volcanic rock.

6. The ecological intercepting system for purifying sewage according to claim 1, wherein: the water permeable cloth (3) is water permeable geotextile, and the thickness of the water permeable cloth (3) is between 1mm and 2 mm.

7. The ecological intercepting system for purifying sewage according to claim 1, wherein: the surface of the pine pile (1) is covered with a carbonization layer.

8. An ecological interception system for purifying polluted water according to any one of claims 1 to 7, wherein: the sewage treatment device is characterized by further comprising a sewage channel (7) and a sedimentation tank (8) communicated with the sewage channel (7), wherein the sedimentation tank (8) is connected with a water distribution pipe (9) extending along the channel (2), and the water distribution pipe (9) is arranged above the backfill soil layer (4).