CN104671593B - Ecological soil purifying bed for agricultural non-point source pollution - Google Patents
Ecological soil purifying bed for agricultural non-point source pollution Download PDFInfo
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- CN104671593B CN104671593B CN201510043103.0A CN201510043103A CN104671593B CN 104671593 B CN104671593 B CN 104671593B CN 201510043103 A CN201510043103 A CN 201510043103A CN 104671593 B CN104671593 B CN 104671593B
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Abstract
The invention discloses an ecological soil purifying bed for agricultural non-point source pollution, and belongs to the field of sewage treatment equipment. The ecological soil purifying bed comprises a filtering purifying layer, a water distributing pipe, a surface sandy soil combined planting layer, an efficient pesticide purifying layer, an efficient nitrogen and phosphorus absorbing purifying filler layer, a gravel water collecting layer, a seepage-proofing layer, a perforating draining pipe and a water discharging area; flow control valves are arranged at a water inlet and a water outlet of the device; the filtering purifying layer is arranged at the head section of the purifying bed and used for removing large granular materials in non-point source streamflow; the surface sandy soil combined planting layer, the efficient pesticide purifying layer, the efficient nitrogen and phosphorus absorbing purifying filler layer and the gravel water collecting layer are distributed in the ecological soil purifying area from top to bottom and used for efficiently removing pesticides, N, P and other pollutants in the non-point source pollution; plants are planted on the surface of the sandy oil combined planting layer; the perforating draining pipe is arranged in the gravel water collecting layer. The ecological soil purifying bed is reasonable in area distribution, compact in structure, convenient to operate, and obvious in treatment effect according to the characteristics of the agricultural non-point source pollution.
Description
Technical field
The invention belongs to field of sewage treatment equipment, and in particular to a kind of agricultural non -point pollution ecological soil clean-up bed.
Background technology
The particle properties of soil, quality and structure, the thickness of soil, permeability and chemical property are to subsurface wastewater infiltration system
Disposal ability and clean-up effect have a great impact, this is because soil dirty water purification is played Physical entrapment, chemical precipitation,
Absorption, redox, complexing and ion exchange etc. are acted on, while provide for the analyst that edaphon is polluter must
The environmental condition wanted, makes sewage be purified well.Ecological soil cleaning system is similar with soil subsurface wastewater infiltration system system, is all
Degrade step by step, purify sewage by the material circulation and energy flow of the ecosystem.Ecological soil purification theory U.S., day,
Ao Deng states are widely applied, and achieve good effect.Simultaneously the technology utilizes the natural purifying ability of soil, by water
Process in combination with greening, so as to beautify and improve region environment.With capital expenditure it is low, running expense is few, operation pipe
The advantages of reason is easy, is particularly suitable for China's national situation.
In recent years, with the development and comprehensive utilization interdisciplinary of science and technology, domestic and international ecological soil purifies bed technique
Research and application be increasingly subject to pay attention to.At present, the ecological soil cleaning system that the country is studied mainly processes sanitary sewage,
For a kind of agricultural non -point pollution and few, such as disclosed patent " ecological soil purifying bed with automatic domestic sewage reoxygenation function "
(CN101525200A), the method for " hydrolysis-contact is stable-stereo ecological soil treatment system purification sewage "
(CN1644514A), " a kind of anti-clogging ecological soil sewage-treatment plant " (CN103274566A), a kind of " domestic sewage ecological
(CN202717671U) etc., agricultural non -point pollution pesticide concentration is high, high nitrogen phosphorus for soil treatment system ", is directly discharged into water body destruction
Water body self-purification ability, causes water environment pollution.
The content of the invention
It is an object of the invention to provide a kind of agricultural non -point pollution ecological soil clean-up bed.The device is directed to farmland face source
The characteristic of pollution, subregion reasonable in design, agricultural chemicals, the nitrogen and phosphorus pollution efficiently removed in the sewage of farmland.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of agricultural non -point pollution ecological soil clean-up bed, it is characterised in that：Including water inlet, control valve A, filtration, purification
Layer, water distributor, water hole A, top layer sandy soil composite plant layer, agricultural chemicals high-efficient purification layer, nitrogen phosphorus efficiency adsorption cleaning packing layer, gravel
Collection water layer, impervious barrier, perforated drain pipe, water hole B, exhalant region, delivery port and control valve B；The connection of described device water inlet is filtered
Purifying layer one end, junction arranges control valve A, and filtration, purification layer other end connection water distributor, water distributor is distributed with water hole A, water
Hole A arranges 10 ~ 20；Ecological soil purifying area is distributed is followed successively by from top to bottom：Top layer sandy soil composite plant layer, agricultural chemicals are efficiently net
Change layer, nitrogen phosphorus efficiency adsorption cleaning packing layer, gravel collection water layer, impervious barrier；The perforated drain pipe is distributed with water hole B, perforation
Drainpipe one end connects gravel collection water layer, and the other end connects the construction that is connected with ecological soil purifying area on the left of exhalant region, exhalant region,
Right side arranges delivery port, and water outlet arranges control valve B.
Wherein described filtration, purification layer is filtered using gravel, and thickness is 70 ~ 80cm, and grain size of gravel used is 15 ~ 20mm.
Wherein described top layer sandy soil composite plant thickness degree is 40 ~ 50cm, wherein husky, native ratio is 1:1.
Wherein described agricultural chemicals high-efficient purification layer is attapulgite modified using acid, thickness and top layer sandy soil composite plant thickness
The ratio of degree is 2:1~1.8:1.
Wherein described nitrogen phosphorus efficiency adsorption cleaning packing layer thickness and the ratio of top layer sandy soil composite plant thickness degree is
1.6:1~1.4:1, wherein packing layer adopts zeolite, lime stone, haydite compounded purification, and proportions are 1:2:1~1:2.4:1, its
Middle sized zeolite particles are 5 ~ 8mm, and limestone particle size is 8 ~ 10mm, and haydite particle diameter is 3 ~ 5mm.
Wherein described gravel collection water layer thickness and the ratio of top layer sandy soil composite plant thickness degree is 1.2:1, gravel grain
Footpath is 15 ~ 20mm.
When this device is operated, sewage enters filtration, purification layer by water inlet, removes the bulky grain thing in the runoff of face source
Matter, the sewage Jing water distributors after filtration flow into ecological soil purifying area, and sewage is from top to bottom 1 respectively through husky, native ratio:1
Top layer sandy soil composite plant layer, agricultural chemicals high-efficient purification layer, nitrogen phosphorus efficiency adsorption cleaning packing layer, gravel collection water layer, efficiently go
Except the pollutant such as the agricultural chemicals in pollution of area source, N, P, the water outlet after purification flows into exhalant region through perforated drain pipe, finally by going out
The mouth of a river enters water body nearby.
The invention has the beneficial effects as follows, filtering area, the subregion purification of ecological soil purifying area have ensured ecological soil area not
Affected by agricultural non -point pollution solid impurity, it is ensured that efficient operational efficiency；The layering purification of ecological soil purifying area, passes through
Different combination matchings, with targetedly degrading pesticide, nitrogen and phosphorus pollution, realizes the high-efficient purification effect of farmland face source sewage.
Subregion of the present invention is reasonable, compact conformation, easy to operate, obvious processing effect.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure, 1- water inlets, 2- control valve A, 3- filtration, purification layers, 4- water distributors, 5- water holes A, 6- top layer sandy soil are combined
Plantation layer, 7- agricultural chemicals high-efficient purification layers, 8- nitrogen phosphorus efficiency adsorption cleaning packing layers, 9- gravel collection water layers, 10- impervious barriers, 11- wear
Hole drainpipe, 12- water holes B, 13- exhalant region, 14- delivery ports, 15- control valve B.
Specific embodiment
As shown in figure 1, this sewage-treatment plant includes water inlet 1, control valve A2, filtration, purification layer 3, water distributor 4, water hole
It is A5, top layer sandy soil composite plant layer 6, agricultural chemicals high-efficient purification layer 7, nitrogen phosphorus efficiency adsorption cleaning packing layer 8, gravel collection water layer 9, anti-
Infiltration layer 10, perforated drain pipe 11, water hole B12, exhalant region 13, delivery port 14, control valve B15.
When this device is operated, sewage enters filtration, purification layer by water inlet, removes the bulky grain thing in the runoff of face source
Matter, the sewage Jing water distributors after filtration flow into ecological soil purifying area, 10 ~ 20 water hole A of setting on water distributor, water distribution uniformity,
Sewage is set uniformly to flow into ecological soil purifying area, sewage is from top to bottom 40 ~ 50cm respectively through thickness, husky, native ratio
For 1:1 top layer sandy soil composite plant layer, agricultural chemicals high-efficient purification layer, nitrogen phosphorus efficiency adsorption cleaning packing layer, gravel collection water layer is high
Effect removes the pollutant such as agricultural chemicals, N, P in pollution of area source, its Pesticides high-efficient purification layer, nitrogen phosphorus efficiency adsorption cleaning packing layer,
Gravel collection water layer, the ratio of top layer sandy soil composite plant layer thickness are 2:1.6:1.2:1~1.8:1.4:1.2:1, farmland face
The characteristics of source pollution has high pesticide concentration, is that the removal for ensureing nitrogen phosphorus is not disturbed by agricultural chemicals, and device adopts sandy soil aggregate species
Husky, the native ratio for planting layer is 1：1, agricultural chemicals high-efficient purification layer is attapulgite modified using acid, and sandy soil composite plant layer is high with agricultural chemicals
The thickness configuration of effect purifying layer ensure that the efficient removal of agricultural chemicals, and nitrogen phosphorus adsorption cleaning layer is using zeolite, lime stone, haydite compounded
Purification, proportions are 1:2:1~1:2.4:1, the nitrogen and phosphorus pollution in efficient absorption degraded sewage, the sewage after degraded flows into gravel
Stone collection water layer, grain size of gravel is 15-20mm, carries out filtration to sewage and catchments, and the water outlet after purification is discharged to by perforated drain pipe
In exhalant region.Ecological soil purifying area rationally arranges thickness proportion by being layered purification, progressively removes pollutant, reaches efficiently
The purpose of process.Jing tests obtain sewage agricultural chemicals, the clearance of N, P respectively reaches 90%, 85%, 75%.Water outlet after purification is passed through
Perforated drain pipe flows into exhalant region, finally enters water body nearby by delivery port.
Claims (6)
1. a kind of agricultural non -point pollution ecological soil clean-up bed, it is characterised in that including water inlet（1）, control valve A（2）, filter
Purifying layer（3）, water distributor（4）, water hole A（5）, top layer sandy soil composite plant layer（6）, agricultural chemicals high-efficient purification layer（7）, nitrogen phosphorus efficiency
Adsorption cleaning packing layer（8）, gravel collection water layer（9）, impervious barrier（10）, perforated drain pipe（11）, water hole B（12）, exhalant region
（13）, delivery port（14）With control valve B（15）；The water inlet（1）Connection filtration, purification layer（3）One end, junction arranges control
Valve A processed（2）, filtration, purification layer（3）The other end connects water distributor（4）, water distributor（4）Water hole A is distributed with（5）, water hole A（5）If
Put 10 ~ 20；Ecological soil purifying area is distributed is followed successively by from top to bottom：Top layer sandy soil composite plant layer（6）, agricultural chemicals high-efficient purification
Layer（7）, nitrogen phosphorus efficiency adsorption cleaning packing layer（8）, gravel collection water layer（9）, impervious barrier（10）；The perforated drain pipe（11）Point
It is furnished with water hole B（12）, perforated drain pipe（11）Located at gravel collection water layer（9）It is interior, perforated drain pipe（11）One end stretch out gravel
Collection water layer（9）Connection exhalant region（13）, exhalant region（13）Left side is connected construction with ecological soil purifying area, right side setting delivery port
（14）, delivery port（14）Place arranges control valve B（15）；Agricultural chemicals high-efficient purification layer（7）, nitrogen phosphorus efficiency adsorption cleaning packing layer（8）、
Gravel collection water layer（9）, top layer sandy soil composite plant layer（6）The ratio of four thickness is 2:1.6:1.2:1~1.8:1.4:1.2:1；
The filtration, purification layer（3）Filtered using gravel, grain size of gravel used is 15 ~ 20mm；The top layer sandy soil composite plant layer（6）
Husky, native ratio be 1:0.8～1:1.2；The agricultural chemicals high-efficient purification layer（7）It is attapulgite modified using acid；The nitrogen phosphorus is high
Effect adsorption cleaning packing layer（8）Using zeolite, lime stone, haydite compounded purification, proportions are 1:2:1~1:2.4:1, wherein
Sized zeolite particles are 5 ~ 8mm, and limestone particle size is 8 ~ 10mm, and haydite particle diameter is 3 ~ 5mm；The gravel collection water layer（9）Gravel grain
Footpath is 15 ~ 20mm.
2. a kind of agricultural non -point pollution ecological soil clean-up bed according to claim 1, it is characterised in that the filtration is net
Change layer（3）Thickness is 70 ~ 80cm.
3. a kind of agricultural non -point pollution ecological soil clean-up bed according to claim 1 and 2, it is characterised in that the table
Layer sandy soil composite plant layer（6）Thickness is 40 ~ 50cm.
4. a kind of agricultural non -point pollution ecological soil clean-up bed according to claim 1 and 2, it is characterised in that the agriculture
Medicine high-efficient purification layer（7）Thickness and top layer sandy soil composite plant layer（6）The ratio of thickness is 2:1~1.8:1.
5. a kind of agricultural non -point pollution ecological soil clean-up bed according to claim 1 and 2, it is characterised in that the nitrogen
Phosphorus efficiency adsorption cleaning packing layer（8）Thickness and top layer sandy soil composite plant layer（6）The ratio of thickness is 1.6:1~1.4:1.
6. a kind of agricultural non -point pollution ecological soil clean-up bed according to claim 1 and 2, it is characterised in that the gravel
Stone collection water layer（9）Thickness and top layer sandy soil composite plant layer（6）The ratio of thickness is 1.2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510043103.0A CN104671593B (en) | 2015-01-29 | 2015-01-29 | Ecological soil purifying bed for agricultural non-point source pollution |
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| CN201510043103.0A CN104671593B (en) | 2015-01-29 | 2015-01-29 | Ecological soil purifying bed for agricultural non-point source pollution |
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| CN104671593A CN104671593A (en) | 2015-06-03 |
| CN104671593B true CN104671593B (en) | 2017-05-03 |
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| CN108529778A (en) * | 2018-06-05 | 2018-09-14 | 中国科学院南京土壤研究所 | The preposition purification system of agricultural run-off drain moduleization |
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Inventor after: Wang Peng Inventor after: Chen Bojun Inventor after: Huang Yong Inventor before: Jie Qingjie Inventor before: Su Hang Inventor before: Du Daolin Inventor before: Chen Junjing Inventor before: Zhu Ting |
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Effective date of registration: 20171106 Address after: 410006 Hunan province Changsha City Lugu high tech Development Zone, Road No. 627 building B-3 accelerator production workshop 907 Patentee after: Hunan morning dew Environmental Technology Development Co. Ltd. Address before: 212013 Zhenjiang City, Jiangsu Province University Road, No. 301 Patentee before: Jiangsu University |
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Granted publication date: 20170503 Termination date: 20210129 |