CN104594446A - Initial runoff collection, purification and recycling system and initial runoff collection, purification and recycling method thereof - Google Patents
Initial runoff collection, purification and recycling system and initial runoff collection, purification and recycling method thereof Download PDFInfo
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- CN104594446A CN104594446A CN201510032105.XA CN201510032105A CN104594446A CN 104594446 A CN104594446 A CN 104594446A CN 201510032105 A CN201510032105 A CN 201510032105A CN 104594446 A CN104594446 A CN 104594446A
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A20/108—Rainwater harvesting
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Abstract
The invention discloses an initial runoff collection, purification and recycling system and an initial runoff collection, purification and recycling method thereof, which can be used for recycling initial rainfall runoff. The system comprises an accumulating unit, a collecting unit, a purifying unit, a recycling unit, activating units and the like. The accumulating unit comprises collecting pipes and reservoirs; the purifying unit comprises a filtering layer and a synchronous nitrification and denitrification layer; the recycling unit comprises an immersible pump, an irrigating pipeline and irrigating branch pipelines; each activating unit comprises a groove pipe and activating agent. When rain falls, part of rainfall runoff enters the reservoirs via the collecting pipes, and the other part of the rainfall runoff is purified by the purifying unit and then drained into underground water or a river; when water is needed, the accumulated water can be pumped into the irrigating pipeline by the immersible pump, nutrient substances in the rain water, such as nitrogen and phosphorus, are activated by the activating units located at the water outlets, which is favorable for the absorption of vegetation, and the unutilized recycled water can pass through the purifying unit again. The system has the advantages of rainfall runoff collection and recycling, non-point source pollution control, activation of plant growth-benefiting nutrient substances in recycled water, fertilization cost reduction and the like.
Description
Technical field
The present invention relates to a kind of Initial Runoff collection and purification reclamation set, particularly relate to a kind of Initial Runoff collection and purification reutilizing device and method thereof.
Background technology
China is one of country of water resource critical shortage, and water resources ownership per capita is only 1/4 of world's water resources ownership per capita, and China's distribution of water resources also exists serious uneven situation.In recent years, China's whole nation total supply is greatly about 5500 billion cubic meters, Water Consumption in Agriculture accounts for about 70% of whole water supply volume, wherein agricultural irrigation water amount accounts for 90% of agriculture total water consumption, therefore, should fully send out out and recycle every water resource, improve agricultural water cyclic utilization rate, improve agricultural irrigation water rate, reduce agricultural irrigation water total amount.In water resources development and utilization, rainwater is exactly by the high-quality water resource ignored for a long time.The total amount relative abundance of China's rainwater resource, annual nearly 6 tcms of amount of precipitation.Wherein have 3.2 tcms to penetrate in soil, evaporate after major part is absorbed by vegetation, fraction adds to underground water; And the rainwater of 2.8 other tcms is formed in surface runoff, have 2.7 tcms to pool the surface water such as river, lake, also having a small amount of becomes underground water.If Initial Runoff rainwater resources utilization is got up, will the total amount with water be greatly reduced, improve the utilization rate of water resource.
In addition, pollution of area source is also the problem of can not ignore.The agricultural run-off formed as rainfall causes agriculture N, P pollution of area source, and agricultural run-off causes body eutrophication after importing river.According to investigations, the loss of China agrochemical Middle nutrition element N, P is serious, and the average utilization of crops to N, P is only about 35%, and the remainder of about 2/3 enters water body by surface flow, soil filtration, causes the eutrophication of rivers and lakes water body.Therefore, initial stage of development discharge resources is recycled and is weakened pollution of area source problem simultaneously and have important practical usage.
Publication number is the patent of CN102786110 is that a kind of farmland nitrogen phosphorus pollution of area source controls, with the method recycled, to provide and utilize storing facilities of water and absorbing unit to control the method for farmland N, P pollution of area source.This invention has good purification, recycles the advantage of water resource.
But, this technology only achieves the object of farmland N, P element pollution control in accumulation facility, do not pay close attention to the purification not entering the agricultural run-off in accumulation pond, and when reuse rainwater, through the desorption of multilayer sorbing material, greatly reduce the concentration of N, P in recycle-water, not significantly will with recycling of water resource, and the limited need of this facility absorbing unit adsorption capacity amount are often safeguarded, engineering quantity is large, and cost is higher.The technology of publication number to be the patent of invention of CN101555071 be a kind of artificial swamp, provide the method utilizing buffer strip to control farmland, River Network N, P pollution of area source, this invention utilizes buffer strip areas, simple and practical the reaching of buffer strip plant subtracts dirty object, but does not but recycle rainwater resource.
Generally, for the control of same pollutant, prioritizing selection resource scheme, next is only resolution.Although N, P element in draining is pollutant to water body, be but required nutriment to vegetation.Research shows, N, P element in agricultural drain accounts for 2/3 of N, P total amount in fertilising, if by this part nutriment reuse to farmland, can be the fertilizer cost that peasant saves 2/3, has considerable economic implications.The invention has the beneficial effects as follows i.e. accumulation rainfall Initial Runoff, purified simultaneously and failed the rainwater of Collection utilization, reduced the possibility that pollution of area source occurs.In addition, in this device, be provided with activating apparatus, can make to make it discharge the nutriment being conducive to vegetation growth during Rain water returning, real reaches saving fertilizer, the object of Rainwater Resources more.
Summary of the invention
In order to solve institute's problems faced in background technology, the object of this invention is to provide a kind of Initial Runoff collection and purification reutilizing device and method thereof.
Technical scheme of the present invention is as follows:
A kind of Initial Runoff collection and purification reutilizing device comprises accumulation device, runoff gathering-device, reclamation set, cavity, catchment, engineering soil layer, activating apparatus;
Described accumulation device comprises: tank, balance pipe, ventilating pipe;
Described reclamation set comprises: irrigate lateral, submersible pump, irrigation conduit;
Described runoff gathering-device comprises: runoff collecting pipe, filter screen;
Described catchment comprises: purifier and dewatering installation;
Described purifier comprises: synchronous nitration and denitrification layer, filtration beds;
Described dewatering installation comprises: draining filler, gutter;
Described activating apparatus comprises: grooved pipe, activator;
Multiple tanks in runoff gathering-device are connected with ventilating pipe by balance pipe, tank is communicated to earth's surface by the runoff collecting pipe of runoff gathering-device, catchment is arranged in the cavity above tank, filtration beds and synchronous nitration and denitrification layer is laid successively from top to bottom in purifier, laying project soil layer above filtration beds, irrigation lateral unit in reclamation set to be embedded in engineering soil layer and to be communicated with irrigation conduit, irrigation conduit is communicated with tank by submersible pump, the grooved pipe of activating apparatus is arranged on irrigates lateral delivery port, realize rainfall runoff collection and purification recycling.
Preferably, described grooved pipe is provided with activator, activator material is load citric acid on the activated carbon, ascorbic acid.
Preferably, the water yield between balance pipe (2) and the next balanced multiple tank of ventilating pipe (3) is provided with between described tank.
Preferably, described purifier is made up of filtration beds and synchronous nitration and denitrification layer, one or more in filtration beds material selection shell, stalk, active carbon, activated alumina, synchronous nitration and denitrification layer material chooses the active PVF foam stuffing that filling quality mark is the high-molecular porous carrier of 8% active carbon.
Preferably, described dewatering installation is made up of draining filler and gutter, and the rainwater through the cleaning of purification enters drainage blanket, is discharged by gutter.
Preferably, described draining filler is rubble, cobble or sandy soil.
Preferably, described runoff collecting pipe is provided with filter screen, filters foreign material in order to avoid blocking rainwater-collecting pipeline.
The Initial Runoff collection and purification reuse method of described device is:
During rainfall, the runoff collecting pipe that part rainwater formation footpath flows through with filter screen enters the tank being positioned at underground; Another part rainwater drop to ground and is flowed in the cavity constructed by concrete, this part rainwater part is dammed by surface vegetation, engineering soil layer is seeped under another part, catchment is entered after the filtration of engineering soil layer, lower infiltration is first through filtration beds, then through synchronous nitration and denitrification layer, eventually pass draining filler and enter rivers and lakes or underground water by gutter;
When needing water, submersible pump is utilized to draw water from tank, the irrigation lateral on earth's surface is delivered to by irrigation conduit, the rainwater stored is mixed into the activator in activating apparatus when delivery port flows out, during rainwater reuse, unabsorbed moisture enters into filtration beds and the synchronous nitration and denitrification layer of purifier again through engineering soil layer, finally enters drainage blanket and is discharged by gutter.
The invention has the beneficial effects as follows that wherein a part of rainwater absorbs through vegetation, the final pollution-free risk of purifier enters river, lake or enters underground water.Another part forms surface flow, be stored in water storage device by runoff gathering-device, need during water, to utilize pumping equipment to extract water storage to ground, become the recycling water resource being more conducive to vegetation growth through activating apparatus, reduce the pollution to environment simultaneously.
Device collects surface flow by rainfall runoff gathering-device and accumulation device, decrease the loss of water resource, and the object of rainwater reuse is reached by reclamation set, this device can utilize nutraceutical concentration by vegetation in activating apparatus raising recycle-water simultaneously, has saved fertilising cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of example 1 of the present invention.
Fig. 2 is the partial enlarged drawing of example 1 of the present invention.
Fig. 3 is the activating apparatus figure of example 1 of the present invention.
In figure: tank 1, balance pipe 2, ventilating pipe 3, submersible pump 4, draining filler 5, synchronous nitration and denitrification layer 6, filtration beds 7, gutter 8, irrigation conduit 9, rainwater collection collector 10, filter screen 11, activating apparatus 12, concrete cavity 13, irrigation lateral 14, engineering soil layer 15, grooved pipe 16, activator 17.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, many present invention will be further described.
Shown in Fig. 1-3, a kind of Initial Runoff collection and purification reutilizing device comprises accumulation device, runoff gathering-device, reclamation set, cavity 13, catchment, engineering soil layer 15, activating apparatus 12; The wall of cavity 13 is laid by concrete and is formed.
Described accumulation device comprises: tank 1, balance pipe 2, ventilating pipe 3;
Described reclamation set comprises: irrigate lateral 14, submersible pump 4, irrigation conduit 9;
Described runoff gathering-device comprises: runoff collecting pipe 10, filter screen 11;
Described catchment comprises: purifier and dewatering installation;
Described purifier comprises: synchronous nitration and denitrification layer 6, filtration beds 7;
Described dewatering installation comprises: draining filler 5, gutter 8;
Described activating apparatus 12 comprises: grooved pipe 16, activator 17;
Multiple tanks 1 in runoff gathering-device are connected with ventilating pipe 3 by balance pipe 2, tank 1 is communicated to earth's surface by the runoff collecting pipe 10 of runoff gathering-device, catchment is arranged in the cavity 13 above tank 1, filtration beds 7 and synchronous nitration and denitrification layer 6 is laid successively from top to bottom in purifier, laying project soil layer 15 above filtration beds 7, irrigation lateral unit 14 in reclamation set to be embedded in engineering soil layer 15 and to be communicated with irrigation conduit 9, irrigation conduit 9 is communicated with tank 1 by submersible pump 3, the grooved pipe 16 of activating apparatus 12 is arranged on irrigates lateral 14 delivery port, realize rainfall runoff collection and purification recycling.
Described grooved pipe 16 is provided with activator 17, and activator 17 material is load citric acid on the activated carbon, ascorbic acid.
Be provided with the water yield between balance pipe 2 and the balanced multiple tank of ventilating pipe 3 between described tank 1, the quantity of described tank, shape and material are arranged according to the actual conditions of locality.
Described purifier is made up of filtration beds 7 and synchronous nitration and denitrification layer 6, one or more in the obvious materials of adsorption effect such as filtration beds 7 material selection shell, stalk, active carbon, activated alumina, synchronous nitration and denitrification layer 6 material selection filling quality mark is the active PVF foam stuffing of the high-molecular porous carrier of 8% active carbon.
Described dewatering installation is made up of draining filler 5 and gutter 8, and the rainwater through the cleaning of purification enters drainage blanket, is discharged by gutter.
The permeable forthright good materials such as rubble, cobble or sandy soil selected by described draining filler 5.
Described runoff collecting pipe 10 is provided with filter screen 11, filters foreign material in order to avoid blocking rainwater-collecting pipeline.
The Initial Runoff collection and purification reuse method of described device is:
During rainfall, the runoff collecting pipe 10 that part rainwater formation footpath flows through with filter screen 11 enters the tank 1 being positioned at underground; Another part rainwater drop to ground and is flowed in the cavity 13 constructed by concrete, this part rainwater part is dammed by surface vegetation, engineering soil layer 15 is seeped under another part, catchment is entered after the filtration of engineering soil layer 15, lower infiltration is first through filtration beds 7, then through synchronous nitration and denitrification layer 6, eventually pass draining filler 5 and enter rivers and lakes or underground water by gutter 8;
When needing water, submersible pump 4 is utilized to draw water from tank 1, the irrigation lateral 14 on earth's surface is delivered to by irrigation conduit 9, the rainwater stored is mixed into the activator 17 in activating apparatus 12 when delivery port flows out, during rainwater reuse, unabsorbed moisture enters into filtration beds 7 and the synchronous nitration and denitrification layer 6 of purifier again through engineering soil layer 15, finally enters drainage blanket 5 and is discharged by gutter 8.
During rainfall, the rainwater collection collector 10 that a part of rainfall formation footpath flows through with filter screen 11 directly enters the tank 1 being positioned at underground.Another part rainwater drop to ground and is flowed in the cavity 13 constructed by concrete, wherein a part is dammed by surface vegetation, be seeped into engineering soil layer 15 under a part, after the filtration of engineering soil layer 15, enter into the catchment be made up of purifier and dewatering installation.Lower infiltration is first through filtration beds 7, then through synchronous nitration and denitrification layer 6, eventually pass water permeability good catchment filler 5 and enter rivers and lakes or underground water by gutter 8.
When needing water, submersible pump 4 is utilized to draw water from tank 1, the irrigation lateral 14 on earth's surface is delivered to by irrigation conduit 9, the rainwater stored during irrigation flows out from delivery port, by the impact of the activating apparatus 12 be made up of grooved pipe 16 and activator 17, rainwater can discharge and be conducive to microbe survival in soil and breeding more, and can promote the nutrition of plant root Nodule Growth, can promote that Soil Microorganism and plant are to the absorption of the nutriment such as nitrogen, phosphorus in recycle-water.During rainwater reuse, unabsorbed moisture enters into filtration beds 7 and the synchronous nitration and denitrification layer 6 of purifier again through engineering soil layer 15, finally enters drainage blanket 5 and is discharged by gutter 8.Through a series of adsorption filtration and the biological nitrification-denitrification process transformed, the content of the materials such as the nitrogen in water body, phosphorus reduces greatly, and the threat of water body to environment eutrophication of discharge is also eliminated substantially.
Claims (8)
1. an Initial Runoff collection and purification reutilizing device, is characterized in that: comprise accumulation device, runoff gathering-device, reclamation set, cavity (13), catchment, engineering soil layer (15), activating apparatus (12);
Described accumulation device comprises: tank (1), balance pipe (2), ventilating pipe (3);
Described reclamation set comprises: irrigate lateral (14), submersible pump (4), irrigation conduit (9);
Described runoff gathering-device comprises: runoff collecting pipe (10), filter screen (11);
Described catchment comprises: purifier and dewatering installation;
Described purifier comprises: synchronous nitration and denitrification layer (6), filtration beds (7);
Described dewatering installation comprises: draining filler (5), gutter (8);
Described activating apparatus (12) comprising: grooved pipe (16), activator (17);
Multiple tanks (1) in runoff gathering-device are connected with ventilating pipe (3) by balance pipe (2), tank (1) is communicated to earth's surface by the runoff collecting pipe (10) of runoff gathering-device, catchment is arranged in the cavity (13) of tank (1) top, filtration beds (7) and synchronous nitration and denitrification layer (6) is laid from top to bottom successively in purifier, filtration beds (7) top laying project soil layer (15), irrigation lateral unit (14) in reclamation set to be embedded in engineering soil layer (15) and to be communicated with irrigation conduit (9), irrigation conduit (9) is communicated with tank (1) by submersible pump (3), the grooved pipe (16) of activating apparatus (12) is arranged on irrigates lateral (14) delivery port, realize rainfall runoff collection and purification recycling.
2. Initial Runoff collection and purification reutilizing device as claimed in claim 1, it is characterized in that: described grooved pipe (16) is provided with activator (17), activator (17) material is load citric acid on the activated carbon, ascorbic acid.
3. Initial Runoff collection and purification reutilizing device as claimed in claim 1, is characterized in that: be provided with the water yield between balance pipe (2) and the next balanced multiple tank of ventilating pipe (3) between described tank (1).
4. Initial Runoff collection and purification reutilizing device as claimed in claim 1, it is characterized in that: described purifier is made up of filtration beds (7) and synchronous nitration and denitrification layer (6), one or more in filtration beds (7) material selection shell, stalk, active carbon, activated alumina, synchronous nitration and denitrification layer (6) material selection filling quality mark is the active PVF foam stuffing of the high-molecular porous carrier of 8% active carbon.
5. Initial Runoff collection and purification reutilizing device as claimed in claim 1, is characterized in that described dewatering installation is made up of draining filler (5) and gutter (8), and the rainwater through the cleaning of purification enters drainage blanket, is discharged by gutter.
6. Initial Runoff collection and purification reutilizing device as claimed in claim 5, is characterized in that: described draining filler (5) is rubble, cobble or sandy soil.
7. Initial Runoff collection and purification reutilizing device as claimed in claim 1, is characterized in that: described runoff collecting pipe (10) is provided with filter screen (11), filters foreign material in order to avoid blocking rainwater-collecting pipeline.
8. an Initial Runoff collection and purification reuse method for device as claimed in claim 1, is characterized in that:
During rainfall, the runoff collecting pipe (10) that part rainwater formation footpath flows through with filter screen (11) enters the tank (1) being positioned at underground; Another part rainwater drop to ground and is flowed in the cavity (13) constructed by concrete, this part rainwater part is dammed by surface vegetation, engineering soil layer (15) is seeped under another part, catchment is entered after the filtration of engineering soil layer (15), lower infiltration is first through filtration beds (7), then through synchronous nitration and denitrification layer (6), eventually pass draining filler (5) and enter rivers and lakes or underground water by gutter (8);
When needing water, submersible pump (4) is utilized to draw water from tank (1), the irrigation lateral (14) on earth's surface is delivered to by irrigation conduit (9), the rainwater stored is mixed into the activator (17) in activating apparatus (12) when delivery port flows out, during rainwater reuse, unabsorbed moisture enters into filtration beds (7) and the synchronous nitration and denitrification layer (6) of purifier again through engineering soil layer (15), finally enters drainage blanket (5) and is discharged by gutter (8).
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| CN201510032105.XA CN104594446A (en) | 2015-01-22 | 2015-01-22 | Initial runoff collection, purification and recycling system and initial runoff collection, purification and recycling method thereof |
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| CN201510032105.XA CN104594446A (en) | 2015-01-22 | 2015-01-22 | Initial runoff collection, purification and recycling system and initial runoff collection, purification and recycling method thereof |
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Cited By (2)
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| CN106211844A (en) * | 2016-07-19 | 2016-12-14 | 莆田秀屿区群韬农业技术开发有限公司 | The prevention and control of a kind of farmland nitrogen and phosphorus pollution and restorative procedure |
| CN108086402A (en) * | 2018-02-05 | 2018-05-29 | 安徽理工大学 | A kind of surface water collects the device of underground storage reuse |
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Application publication date: 20150506 |