CN102910739A - Purification method of drainage outside rice field in estuarine area - Google Patents
Purification method of drainage outside rice field in estuarine area Download PDFInfo
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- CN102910739A CN102910739A CN2012104055803A CN201210405580A CN102910739A CN 102910739 A CN102910739 A CN 102910739A CN 2012104055803 A CN2012104055803 A CN 2012104055803A CN 201210405580 A CN201210405580 A CN 201210405580A CN 102910739 A CN102910739 A CN 102910739A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention belongs to the technical fields of surface source pollution control and water pollution biological treatment and particularly discloses a purification method of drainage outside a rice field in an estuarine area. Emergent plants are planted at bottoms of drainage trenches of the rice field; floating plants are planted on trench walls; the drainage outside the rice field passes through the drainage trenches and the trench walls in sequence and then flows to a nitrogen and phosphorus prevention and control box and a plant floating bed which are arranged on rice field drainage main canals so as to be treated; and then the drainage outside the rice field is introduced to a natural wet land so as to be purified and converged to rivers. By using the purification method, the traditional conditions are fully utilized, a large amount of land is not occupied, needed materials are easy to obtain, retaining effects to nitrogen and phosphorus are good, and meanwhile, a scenery effect is good.
Description
Technical field
The invention belongs to pollution of area source control and water pollution organism processing technology field, a kind of Hekou District rice field effluxes method for purifying water specifically.
Background technology
Hekou District is important paddy rice main producing region and fine quality rice production base, the whole nation, has the whole nation to concentrate 10.5 ten thousand hectares of the rice terraces of maximum area in flakes, produces 980000 tons in paddy rice per year.But because the Hekou District network of waterways is intensive, the nitrogen phosphorus that the Rice Production process produces can enter network of waterways surface drainage system by leaching and footpath stream mode, it is estimated 3185 tons in year discharging nitrogen, 41.2 tons in year discharging phosphorus.These pollutents finally import the river under the driving of the complicated hydraulic conveyer system in the network of waterways, have a strong impact on water quality of river.Therefore develop and integrated paddy ecosystem nitrogen phosphorus control integration technology, the agricultural pollution that produces from source control Rice Production process has become problem in the urgent need to address.
The theory that abroad natural, ecological is followed in control to the rice field fertilizer pollution mainly adopts the technology mode of rehabilitating.By reduction utilize intensity, by a relatively large margin reduce the fertilizers input amount, the broad technical measures such as biological isolation strip are set, reaches and increase soil fertility and the target of protection of the environment, but this way often is that to sacrifice farm output be the purpose that cost reaches environment protection.And China has a large population and a few land, population pressure is large, and Ensuring Food Safety is in most important status all the time.Therefore, external prior art is applied to after China farmland, exist yield reducation too much, take the farmland too much, the problems such as high cost, and not exclusively be fit to the fertilizer pollution control in China rice field.
Summary of the invention
The object of the invention is to provide a kind of Hekou District rice field to efflux method for purifying water.
The technical solution used in the present invention is for achieving the above object:
A kind of Hekou District rice field effluxes method for purifying water, and paddy field drainage Zhigou bottom of trench plantation emergent, furrow bank plantation floating plant enters the nitrogen phosphorus resistance control case and plant floating bed processing that arrange on the paddy field drainage trunk canal after draining is flowed through successively outside the rice field; Introduce at last and import the river after natural wetland purifies.
The then outer draining of a plurality of nitrogen phosphorus resistance control case that enters S-type distribution in the paddy field drainage trunk canal after draining is flowed through successively outside the rice field is flowed through plant floating bed again.
Described nitrogen phosphorus resistance control case by surface casing with holes, nitrogen phosphorus fixedly matrix and be born in the fixedly plant constitution on the matrix of nitrogen phosphorus.
Described nitrogen phosphorus fixedly matrix places in the nitrogen phosphorus resistance control case, be born in nitrogen phosphorus fixedly the floating plant on the matrix grow in through hole on the casing outside.
Described nitrogen phosphorus fixedly matrix is sponge, vermiculite and zeolite, mixes for 3:1:1 by volume.
The described plant floating bed hole that is provided with the carrying flowerpot, the interior filling sponge of flowerpot are with fixed nitrogen phosphorus, and the growth of confession emergent.
Described emergent can be selected one or more miscegenations among cattail, yellow flag, Scirpus tabernaemontani, Chinese celery, arrowhead, Spiked Loosestrife, ginger or the wild rice stem Xun; Capture water plant and can select one or more miscegenations in Herba Eichhorniae, water lily, red water chestnut, water small-mouthed jar, grain floating heart, Gorgon fruit, frogbit or the poly-greatly algae.
Basic technology of the present invention and principle are as follows:
Paddy field drainage is at first by Zhigou (1), emergent (4) and the floating plant (5) of plantation can be slowed down current washing away bottom of trench and furrow bank in the Zhigou (1), reduce the loss of soil particle and nitrogen, phosphorus, simultaneously the nitrogen in the paddy field drainage, phosphorus are carried out rough purification.
The paddy field drainage of preliminary treatment enters trunk canal (2), resistance control case (6) in the trunk canal (2) can effectively be held back the suspended matter in the soil, nitrogen phosphorus in the casing is the part nitrogen phosphorus of the adsorbable fixedly water body of matrix (9) lower floor fixedly, for adhere on it capture water plant (10) absorb, to reduce pollutant concentration.Simultaneously, the distribution of S type also can reduce flow velocity, slows down current washing away trunk canal (2) furrow bank and bottom of trench.The nitrogen phosphorus in the water body of upper strata then can be removed in plant floating bed (7) in the trunk canal (2), the nitrogen phosphorus in the floating bed flowerpot fixedly matrix (9) nitrogen phosphorus is adsorbed fixing, by on it the emergent (11) that gives birth to absorb removal.
Paddy field drainage is introduced natural wetland (3) and is purified after trunk canal resistance control system processes, and what obtain afterwards discharging purifies waste water into the river.
Advantage of the present invention and positively effect are:
1. the present invention takes full advantage of existence conditions, does not take a large amount of soils, and the material requested source is easy to get, and is good to rejection effects such as nitrogen phosphorus.
2. widespread pollution from the overuse of fertilizers and pesticides in rural area of the present invention resistance control system can not produce secondary pollution in operational process, and welding does not have good landscape effect.More specifically relate to a kind of nitrogen phosphorus resistance control of agronomy resistance control techniques system, especially Hekou District paddy field drainage of preventing and controlling agricultural area source pollution, the crop ped location, rice field of Hekou District etc.
Description of drawings
Fig. 1 effluxes the method for purifying water synoptic diagram for the Hekou District rice field that the embodiment of the invention provides;
The nitrogen phosphorus resistance control case synoptic diagram that Fig. 2 provides for the embodiment of the invention;
The plant floating bed synoptic diagram that Fig. 3 provides for the embodiment of the invention.
Label is: 1. Zhigou, 2. trunk canal, 3. natural wetland, 4. emergent, 5. floating plant, 6. resistance control case is 7. plant floating bed, 8. resistance control casing, the 9. fixing matrix of nitrogen phosphorus, 10. capture water plant, 11. living emergent.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
The present invention is controlled paddy field drainage successively by Zhigou (1) resistance, what obtain discharging after trunk canal (2) resistance control, natural wetland (3) the resistance control purifies waste water.
Wherein resistance control concrete methods of realizings at different levels are as follows:
(I) Zhigou (1) resistance control: paddy field drainage Zhigou bottom of trench plantation emergent (4), furrow bank plantation floating plant (5), nitrogen in the paddy field drainage, phosphorus are tentatively absorbed, and wherein emergent (4) can be reed, Scirpus tabernaemontani etc., the optional Herba Eichhorniae of floating plant (5), water lily etc.
(II) trunk canal (2) resistance control: set gradually nitrogen phosphorus resistance control case (6), plant floating bed (7) in the paddy field drainage trunk canal, respectively the nutritive substances such as the nitrogen on water body lower floor and upper strata, phosphorus are held back, reduce its concentration.Wherein resistance control case (6) S-type distribution in the trunk canal, by casing (8), nitrogen phosphorus fixedly matrix (9) and living plant (10) formation.Resistance control casing (8) is by cement production systD, be hexahedron, specification is length of side 40-60cm, and each face all has the circular hole of 4-16 diameter 10-15cm except the bottom surface, the casing top can be opened, and water quality, the water yield be convenient to according to paddy field drainage are adjusted nitrogen phosphorus fixedly kind and the consumption of matrix (9).Living plant (10) and be fixed in resistance control casing (8) circular hole place, root is attached to nitrogen phosphorus in the casing fixedly on the matrix (9), with Absorption of nourishment and reduce its concentration.Nitrogen phosphorus is the optional sponge of matrix (9), vermiculite, zeolite etc. fixedly, the optional Herba Eichhorniae of capture water plant (10), water lily etc.Plant floating bed (7) are made by extruded sheet, and area is according to the trunk canal width adjustment, and thickness is 5-15cm, the circular hole that 4-12 diameter 10-15cm arranged on the extruded sheet, place the PVC flowerpot in the hole, be used for livings emergent (11), root is attached to the interior nitrogen phosphorus of flowerpot fixedly on the matrix (9).Nitrogen phosphorus is the optional sponge of matrix (9), vermiculite, zeolite etc. fixedly, the optional yellow flag of living emergent (11), Scirpus tabernaemontani etc.
(III) enter river mouth natural wetland (3) resistance control: the Hekou District wetland is widely distributed, and paddy field drainage before entering the river, is introduced natural wetland (3) and purified after trunk canal resistance control system processes.
Embodiment 1
Sample plot Liaoning Province Panjin City is selected representational rice field near the peaceful river,
Treatment process:
In paddy field drainage Zhigou bottom of trench plantation reed, furrow bank plantation Herba Eichhorniae, the then outer draining of a plurality of nitrogen phosphorus resistance control case that enters S-type distribution in the paddy field drainage trunk canal after draining is flowed through successively outside the rice field is flowed through plant floating bed again; Introduce at last reed wetland and purify, then enter river water.
48 in nitrogen phosphorus resistance control case is established in the trunk canal altogether, nitrogen phosphorus resistance control case specification is 50cm * 50cm * 40cm(length * wide * height), each face arranges the circular hole of 4 diameter 15cm except the bottom surface, nitrogen phosphorus fixedly matrix is sponge, vermiculite and zeolite (by volume ratio is 3:1:1), nitrogen phosphorus is fixedly planted water lily on the matrix, and the water lily root is attached to and sees through in the nitrogen phosphorus resistance control case outside circular hole grows in.
The trunk canal is established plant floating bed 12, and each specification is 100cm * 100cm * 10cm(length * wide * height), establish the circular hole of 16 diameter 10cm on each is plant floating bed, the nitrogen phosphorus of employing fixedly matrix is sponge, living emergent is yellow flag.
Adopt the inventive method to compare with paddy field drainage Zhigou water inlet place, enter water port place, river nitrogen phosphorus and subdue respectively 23.15% and 15.01%, the plant of plantation can normal growth simultaneously.
Above-mentioned emergent also can be selected one or more miscegenations among cattail, yellow flag, Scirpus tabernaemontani, Chinese celery, arrowhead, Spiked Loosestrife, ginger or the wild rice stem Xun; Capture water plant and can select one or more miscegenations in Herba Eichhorniae, water lily, red water chestnut, water small-mouthed jar, grain floating heart, Gorgon fruit, frogbit or the poly-greatly algae.
Above-described embodiment is the better embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. a Hekou District rice field effluxes method for purifying water, it is characterized in that: paddy field drainage Zhigou bottom of trench plantation emergent, furrow bank plantation floating plant enters the nitrogen phosphorus resistance control case and plant floating bed processing that arrange on the paddy field drainage trunk canal after draining is flowed through successively outside the rice field; Introduce at last and import the river after natural wetland purifies.
2. efflux method for purifying water by Hekou District claimed in claim 1 rice field, it is characterized in that: the then outer draining of a plurality of nitrogen phosphorus resistance control case that enters S-type distribution in the paddy field drainage trunk canal after draining is flowed through successively outside the rice field is flowed through plant floating bed again.
3. efflux method for purifying water by Hekou District claimed in claim 1 rice field, it is characterized in that: described nitrogen phosphorus resistance control case by surface casing with holes, nitrogen phosphorus fixedly matrix and be born in the fixedly plant constitution on the matrix of nitrogen phosphorus.
4. efflux method for purifying water by claimed in claim 3 by Hekou District claimed in claim 1 rice field, it is characterized in that: described nitrogen phosphorus fixedly matrix places in the nitrogen phosphorus resistance control case, be born in nitrogen phosphorus fixedly the floating plant on the matrix grow in through hole on the casing outside.
5. describedly efflux method for purifying water by Hekou District claimed in claim 1 rice field by claim 3 or 4, it is characterized in that: described nitrogen phosphorus fixedly matrix is sponge, vermiculite and zeolite.
6. efflux method for purifying water by Hekou District claimed in claim 1 rice field, it is characterized in that: the described plant floating bed hole that is provided with the carrying flowerpot, the interior filling sponge of flowerpot are with fixed nitrogen phosphorus, and the growth of confession emergent.
7. efflux method for purifying water by claim 1,4 or 6 described Hekou District rice fields, it is characterized in that: described emergent can be selected one or more miscegenations among cattail, yellow flag, Scirpus tabernaemontani, Chinese celery, arrowhead, Spiked Loosestrife, ginger or the wild rice stem Xun; Capture water plant and can select one or more miscegenations in Herba Eichhorniae, water lily, red water chestnut, water small-mouthed jar, grain floating heart, Gorgon fruit, frogbit or the poly-greatly algae.
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| CN2012104055803A CN102910739A (en) | 2012-10-22 | 2012-10-22 | Purification method of drainage outside rice field in estuarine area |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103493672A (en) * | 2013-10-14 | 2014-01-08 | 苏州市新巷农艺科技园 | Green and high-yield planting method of euryale ferox salisb |
| CN104355410A (en) * | 2014-11-07 | 2015-02-18 | 上海交通大学 | Ecological interception and blocking system for controlling non-point source pollution of rice field |
| CN104828950A (en) * | 2015-05-08 | 2015-08-12 | 黄伟强 | Processing method of domestic sewage |
| CN106745452A (en) * | 2016-12-30 | 2017-05-31 | 北京师范大学 | A kind of farmland nitrogen and phosphorus recovery device |
| CN107777777A (en) * | 2017-11-22 | 2018-03-09 | 沈阳大学 | One kind cuts down northern paddy field drainage pollution method |
| CN107973416A (en) * | 2017-12-29 | 2018-05-01 | 杭州中艺生态环境工程有限公司 | Fresh water beach ecoscape water cleaning systems |
| CN109315359A (en) * | 2018-11-17 | 2019-02-12 | 吉林农业大学 | A kind of predacious diving beetle cultural method |
| CN115321752A (en) * | 2022-08-12 | 2022-11-11 | 华南农业大学 | Ecological ditch and ecological circulation system are handled to tertiary of farmland runoff |
| CN115520969A (en) * | 2022-09-26 | 2022-12-27 | 中国科学院南京土壤研究所 | Composite ecological restoration method for farmland drainage polluted river channel |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103493672A (en) * | 2013-10-14 | 2014-01-08 | 苏州市新巷农艺科技园 | Green and high-yield planting method of euryale ferox salisb |
| CN104355410A (en) * | 2014-11-07 | 2015-02-18 | 上海交通大学 | Ecological interception and blocking system for controlling non-point source pollution of rice field |
| CN104828950A (en) * | 2015-05-08 | 2015-08-12 | 黄伟强 | Processing method of domestic sewage |
| CN106745452A (en) * | 2016-12-30 | 2017-05-31 | 北京师范大学 | A kind of farmland nitrogen and phosphorus recovery device |
| CN107777777A (en) * | 2017-11-22 | 2018-03-09 | 沈阳大学 | One kind cuts down northern paddy field drainage pollution method |
| CN107973416A (en) * | 2017-12-29 | 2018-05-01 | 杭州中艺生态环境工程有限公司 | Fresh water beach ecoscape water cleaning systems |
| CN109315359A (en) * | 2018-11-17 | 2019-02-12 | 吉林农业大学 | A kind of predacious diving beetle cultural method |
| CN115321752A (en) * | 2022-08-12 | 2022-11-11 | 华南农业大学 | Ecological ditch and ecological circulation system are handled to tertiary of farmland runoff |
| CN115321752B (en) * | 2022-08-12 | 2024-03-19 | 华南农业大学 | Three-stage treatment ecological ditch for farmland runoff and ecological circulation system |
| CN115520969A (en) * | 2022-09-26 | 2022-12-27 | 中国科学院南京土壤研究所 | Composite ecological restoration method for farmland drainage polluted river channel |
| CN115520969B (en) * | 2022-09-26 | 2024-05-28 | 中国科学院南京土壤研究所 | Composite ecological restoration method for farmland drainage polluted river |
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Application publication date: 20130206 |