CN104671593A - 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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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, be specifically related to a kind of agricultural non-point pollution ecological soil clean-up bed.
Background technology
The thickness of the particle properties of soil, quality and structure, soil, perviousness and chemical property have a great impact the processing power of subsurface wastewater infiltration system and decontamination effect improving, this is because soil plays the effects such as Physical entrapment, chemical precipitation, absorption, redox, complexing and ion-exchange to dirty water purification, simultaneously for the decomposer of soil microorganisms and pollution substance provides necessary envrionment conditions, sewage is well purified.Ecological soil purification system and soil subsurface wastewater infiltration system system similarity are all degraded step by step by the material cycle of the ecosystem and flow of energy, purified waste water.The theory of ecological soil purification is applied widely in U.S., day, Ao Deng state, achieves good effect.This technology utilizes the natural purifying ability of soil simultaneously, water treatment is combined with greening, thus beautifies and improve region environment.There is the advantages such as initial cost is low, running expense is few, operational administrative is easy, be particularly suitable for China's national situation.
In recent years, along with development and the comprehensive utilization interdisciplinary of science and technology, the investigation and application of domestic and international ecological soil clean-up bed technology comes into one's own day by day.At present, domestic studied ecological soil purification system mainly processes sanitary sewage, for agricultural non-point pollution and few, as disclosed patent " a kind of ecological soil purifying bed with automatic domestic sewage reoxygenation function " (CN101525200A), " method of hydrolysis-contact stabilization-stereo ecological soil treatment system purification sewage " (CN1644514A), " a kind of anti-clogging plug ecological soil waste disposal plant " (CN103274566A), " one way of life sewerage ecological soil treatment system " (CN202717671U) etc., agricultural non-point pollution pesticide concentration is high, high nitrogen phosphorus, directly enter water body and destroy water body self-purification ability, cause water environment pollution.
Summary of the invention
The object of the present invention is to provide a kind of agricultural non-point pollution ecological soil clean-up bed.This device for the characteristic of agricultural non-point pollution, subregion reasonable in design, efficient agricultural chemicals, the nitrogen and phosphorus pollution 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, is characterized in that: comprise water-in, 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 catchment layer, impervious barrier, perforated drain pipe, water hole B, exhalant region, water outlet and control valve B; Described device water-in connects filtration, purification layer one end, and junction arranges control valve A, and the filtration, purification layer the other end connects water distributor, and water distributor is distributed with water hole A, and water hole A arranges 10 ~ 20; Ecological soil purifying area distributes from top to bottom and is followed successively by: top layer sandy soil composite plant layer, agricultural chemicals high-efficient purification layer, nitrogen phosphorus efficiency adsorption cleaning packing layer, gravel catchment layer, impervious barrier; Described perforated drain pipe is distributed with water hole B, and perforated drain pipe one end connects gravel and to catchment layer, and the other end connects exhalant region, and be connected with ecological soil purifying area on the left of exhalant region and build, right side sets out the mouth of a river, and water outlet arranges control valve B.
Wherein said filtration, purification layer uses gravel to filter, and thickness is 70 ~ 80cm, and grain size of gravel used is 15 ~ 20mm.
Wherein said top layer sandy soil composite plant layer thickness is 40 ~ 50cm, Qi Zhongsha, native ratio is 1:1.
Wherein said agricultural chemicals high-efficient purification layer uses acid attapulgite modified, and the ratio of thickness and top layer sandy soil composite plant layer thickness is 2:1 ~ 1.8:1.
The ratio of wherein said nitrogen phosphorus efficiency adsorption cleaning packing layer thickness and top layer sandy soil composite plant layer thickness is 1.6:1 ~ 1.4:1, wherein packing layer adopts zeolite, Wingdale, haydite compounded purification, proportions is 1:2:1 ~ 1:2.4:1, wherein sized zeolite particles is 5 ~ 8mm, limestone particle size is 8 ~ 10mm, and haydite particle diameter is 3 ~ 5mm.
The catchment ratio of layer thickness and top layer sandy soil composite plant layer thickness of wherein said gravel is 1.2:1, and grain size of gravel is 15 ~ 20mm.
When this device carries out work, sewage enters filtration, purification layer by water-in, large particulate matter in the runoff of source, removal face, sewage after filtration flows into ecological soil purifying area through water distributor, sewage to catchment layer respectively through husky, that native ratio is 1:1 top layer sandy soil composite plant layer, agricultural chemicals high-efficient purification layer, nitrogen phosphorus efficiency adsorption cleaning packing layer, gravel from top to bottom, the pollutent such as agricultural chemicals, N, P in efficient removal pollution of area source, water outlet after purification flows into exhalant region through perforated drain pipe, finally enters neighbouring water body by water outlet.
The invention has the beneficial effects as follows, the subregion purification of filtrating area, ecological soil purifying area has ensured ecological soil district not by the impact of agricultural non-point pollution solid impurity, guarantees efficient operational efficiency; The layering purification of ecological soil purifying area, by different combination matchings, pointed degrading pesticide, nitrogen and phosphorus pollution, realize the high-efficient purification effect of source, face, farmland sewage.Subregion of the present invention is reasonable, compact construction, easy to operate, obvious processing effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, 1-water-in, 2-control valve A, 3-filtration, purification layer, 4-water distributor, A, 6-top layer, 5-water hole sandy soil composite plant layer, 7-agricultural chemicals high-efficient purification layer, 8-nitrogen phosphorus efficiency adsorption cleaning packing layer, 9-gravel catchment layer, 10-impervious barrier, 11-perforated drain pipe, B, 13-exhalant region, 12-water hole, 14-water outlet, 15-control valve B.
Embodiment
As shown in Figure 1, this waste disposal plant comprises water-in 1, control valve A2, filtration, purification layer 3, water distributor 4, water hole 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 catchment layer 9, impervious barrier 10, perforated drain pipe 11, water hole B12, exhalant region 13, water outlet 14, control valve B15.
When this device carries out work, sewage enters filtration, purification layer by water-in, large particulate matter in the runoff of source, removal face, sewage after filtration flows into ecological soil purifying area through water distributor, water distributor is arranged 10 ~ 20 water hole A, water distribution uniformity, sewage is enable evenly to flow into ecological soil purifying area, sewage is 40 ~ 50cm respectively through thickness from top to bottom, husky, soil ratio is the top layer sandy soil composite plant layer of 1:1, agricultural chemicals high-efficient purification layer, nitrogen phosphorus efficiency adsorption cleaning packing layer, gravel catchments layer, agricultural chemicals in efficient removal pollution of area source, N, the pollutents such as P, its Pesticides high-efficient purification layer, nitrogen phosphorus efficiency adsorption cleaning packing layer, gravel catchments layer, the ratio of top layer sandy soil composite plant layer thickness is 2:1.6:1.2:1 ~ 1.8:1.4:1.2:1, agricultural non-point pollution has the feature of high pesticide concentration, for ensureing that the removal of nitrogen phosphorus is not by the interference of agricultural chemicals, device adopts the sand of sandy soil composite plant layer, soil ratio is 1:1, agricultural chemicals high-efficient purification layer uses acid attapulgite modified, the thickness of sandy soil composite plant layer and agricultural chemicals high-efficient purification layer configures the efficient removal that ensure that agricultural chemicals, nitrogen phosphorus adsorption cleaning layer adopts zeolite, Wingdale, haydite compounded purification, proportions is 1:2:1 ~ 1:2.4:1, nitrogen and phosphorus pollution in efficient adsorption degradation of sewage, sewage after degraded flows into gravel and to catchment layer, grain size of gravel is 15-20mm, carry out filtration to sewage to catchment, water outlet after purification is discharged in exhalant region by perforated drain pipe.Ecological soil purifying area is purified by layering, and reasonable thickness setting ratio, progressively removes pollutent, reaches the object of efficient process.Obtain sewage agricultural chemicals through test, the clearance of N, P reaches 90%, 85%, 75% respectively.Water outlet after purification flows into exhalant region through perforated drain pipe, finally enters neighbouring water body by water outlet.
Claims (6)
1. an agricultural non-point pollution ecological soil clean-up bed, it is characterized in that, comprise water-in (1), control valve A(2), filtration, purification 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 catchment layer (9), impervious barrier (10), perforated drain pipe (11), water hole B(12), exhalant region (13), water outlet (14) and control valve B(15); Described device water-in (1) connects filtration, purification layer (3) one end, and junction arranges control valve A(2), filtration, purification layer (3) the other end connects water distributor (4), and water distributor (4) is distributed with water hole A(5), water hole A(5) arrange 10 ~ 20; Ecological soil purifying area distributes from top to bottom and is followed successively by: catchment layer (9), impervious barrier (10) for top layer sandy soil composite plant layer (6), agricultural chemicals high-efficient purification layer (7), nitrogen phosphorus efficiency adsorption cleaning packing layer (8), gravel; Described perforated drain pipe (11) is distributed with water hole B(12), perforated drain pipe (11) is located at gravel and is catchmented in layer (9), one end of perforated drain pipe (11) is stretched out the gravel layer (9) that catchments and is connected exhalant region (13), left side, exhalant region (13) is connected with ecological soil purifying area and builds, right side sets out the mouth of a river (14), and water outlet (14) place arranges control valve B(15).
2. a kind of agricultural non-point pollution ecological soil clean-up bed according to claim 1 and 2, is characterized in that, described filtration, purification layer (3) uses gravel to filter, and thickness is 70 ~ 80cm, and grain size of gravel used is 15 ~ 20mm.
3. a kind of agricultural non-point pollution ecological soil clean-up bed according to claim 1 and 2, is characterized in that, described top layer sandy soil composite plant layer (6) thickness is 40 ~ 50cm, Qi Zhongsha, native ratio is 1:0.8 ~ 1:1.2.
4. a kind of agricultural non-point pollution ecological soil clean-up bed according to claim 1 and 2, it is characterized in that, described agricultural chemicals high-efficient purification layer (7) uses acid attapulgite modified, and the ratio of thickness and top layer sandy soil composite plant layer (6) 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 characterized in that, the ratio of described nitrogen phosphorus efficiency adsorption cleaning packing layer (8) thickness and top layer sandy soil composite plant layer (6) thickness is 1.6:1 ~ 1.4:1, wherein packing layer adopts zeolite, Wingdale, haydite compounded purification, proportions is 1:2:1 ~ 1:2.4:1, wherein sized zeolite particles is 5 ~ 8mm, and limestone particle size is 8 ~ 10mm, and haydite particle diameter is 3 ~ 5mm.
6. a kind of agricultural non-point pollution ecological soil clean-up bed according to claim 1 and 2, is characterized in that, the catchment ratio of layer (9) thickness and top layer sandy soil composite plant layer (6) thickness of described gravel is 1.2:1, and grain size of gravel is 15 ~ 20mm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106365317A (en) * | 2016-09-26 | 2017-02-01 | 南京格丰环保材料有限公司 | Constructed wetland treatment system for village and town sanitary sewage |
| CN107117772A (en) * | 2017-06-06 | 2017-09-01 | 武汉钢铁有限公司 | A kind of runoff treatment system and method |
| CN107237367A (en) * | 2016-03-29 | 2017-10-10 | 国环清源控股有限公司 | Rainwater purification reclamation set and rainwater purification reuse method |
| CN107265781A (en) * | 2017-08-07 | 2017-10-20 | 湖南艾布鲁环保科技有限公司 | A kind of collection of agricultural non-point source pollution agricultural drain and secondary treatment system |
| CN107324618A (en) * | 2017-09-04 | 2017-11-07 | 西南科技大学 | The system and method for the Qinghai-Tibet cold and oxygen deficient slaughtering wastewater of processing |
| CN107337282A (en) * | 2017-09-04 | 2017-11-10 | 西南科技大学 | The artificial wet land system and processing method of low concentration wastewater are butchered in processing |
| 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 |
| CN108557922A (en) * | 2018-06-05 | 2018-09-21 | 中国科学院南京土壤研究所 | The buried preposition purification system of farmland water-break |
| CN108585098A (en) * | 2018-03-30 | 2018-09-28 | 同济大学 | The purification method of rainwater runoff pollution object and scavenging material zeolite-containing |
| CN108911424A (en) * | 2018-08-23 | 2018-11-30 | 中国科学院南京土壤研究所 | A kind of farmland water-break purification irrigation canals and ditches automatically adjusting water flow |
| CN109087722A (en) * | 2018-08-17 | 2018-12-25 | 西南科技大学 | A kind of uranium-bearing low level waste water ecology cleaning treatment system and processing method |
| CN109243657A (en) * | 2018-08-17 | 2019-01-18 | 西南科技大学 | A kind of combined type uranium-bearing low level waste water ecology cleaning treatment system and processing method |
| CN109626723A (en) * | 2018-12-19 | 2019-04-16 | 北京建筑大学 | A kind of ecological treatment system controlling agricultural non -point pollution |
| CN109851159A (en) * | 2019-01-17 | 2019-06-07 | 北京林业大学 | A kind of eco-filtration band system and its construction method blocking agricultural non -point pollution |
| CN109851175A (en) * | 2019-03-21 | 2019-06-07 | 金陵科技学院 | A kind of artificial canal island system of ecological purification |
| CN110078310A (en) * | 2019-05-27 | 2019-08-02 | 农业农村部环境保护科研监测所 | Degradation of pesticide is ecological bed and its biodegrading process |
| CN114830991A (en) * | 2019-10-10 | 2022-08-02 | 淄博清大粉体材料工程有限公司 | Desert planting structure |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107237367A (en) * | 2016-03-29 | 2017-10-10 | 国环清源控股有限公司 | Rainwater purification reclamation set and rainwater purification reuse method |
| CN106365317A (en) * | 2016-09-26 | 2017-02-01 | 南京格丰环保材料有限公司 | Constructed wetland treatment system for village and town sanitary sewage |
| CN107117772A (en) * | 2017-06-06 | 2017-09-01 | 武汉钢铁有限公司 | A kind of runoff treatment system and method |
| CN107265781A (en) * | 2017-08-07 | 2017-10-20 | 湖南艾布鲁环保科技有限公司 | A kind of collection of agricultural non-point source pollution agricultural drain and secondary treatment system |
| CN107324618A (en) * | 2017-09-04 | 2017-11-07 | 西南科技大学 | The system and method for the Qinghai-Tibet cold and oxygen deficient slaughtering wastewater of processing |
| CN107337282A (en) * | 2017-09-04 | 2017-11-10 | 西南科技大学 | The artificial wet land system and processing method of low concentration wastewater are butchered in processing |
| CN108585098A (en) * | 2018-03-30 | 2018-09-28 | 同济大学 | The purification method of rainwater runoff pollution object and scavenging material zeolite-containing |
| 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 |
| CN108557922A (en) * | 2018-06-05 | 2018-09-21 | 中国科学院南京土壤研究所 | The buried preposition purification system of farmland water-break |
| CN109087722A (en) * | 2018-08-17 | 2018-12-25 | 西南科技大学 | A kind of uranium-bearing low level waste water ecology cleaning treatment system and processing method |
| CN109243657A (en) * | 2018-08-17 | 2019-01-18 | 西南科技大学 | A kind of combined type uranium-bearing low level waste water ecology cleaning treatment system and processing method |
| CN108911424A (en) * | 2018-08-23 | 2018-11-30 | 中国科学院南京土壤研究所 | A kind of farmland water-break purification irrigation canals and ditches automatically adjusting water flow |
| CN108911424B (en) * | 2018-08-23 | 2023-09-05 | 中国科学院南京土壤研究所 | Farmland water-return purifying ditch capable of automatically regulating water flow |
| CN109626723A (en) * | 2018-12-19 | 2019-04-16 | 北京建筑大学 | A kind of ecological treatment system controlling agricultural non -point pollution |
| CN109851159A (en) * | 2019-01-17 | 2019-06-07 | 北京林业大学 | A kind of eco-filtration band system and its construction method blocking agricultural non -point pollution |
| CN109851175A (en) * | 2019-03-21 | 2019-06-07 | 金陵科技学院 | A kind of artificial canal island system of ecological purification |
| CN109851175B (en) * | 2019-03-21 | 2023-10-27 | 金陵科技学院 | Ecological purification artificial canal island system |
| CN110078310A (en) * | 2019-05-27 | 2019-08-02 | 农业农村部环境保护科研监测所 | Degradation of pesticide is ecological bed and its biodegrading process |
| CN110078310B (en) * | 2019-05-27 | 2024-03-05 | 农业农村部环境保护科研监测所 | Pesticide degradation ecological bed and degradation method thereof |
| CN114830991A (en) * | 2019-10-10 | 2022-08-02 | 淄博清大粉体材料工程有限公司 | Desert planting structure |
| CN114830991B (en) * | 2019-10-10 | 2023-10-24 | 淄博清大粉体材料工程有限公司 | Desert planting structure |
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