CN202322557U - Hydroponic plant and filter dam combined eutrophic water body ex-situ remediation system - Google Patents
Hydroponic plant and filter dam combined eutrophic water body ex-situ remediation system Download PDFInfo
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- CN202322557U CN202322557U CN2011204407574U CN201120440757U CN202322557U CN 202322557 U CN202322557 U CN 202322557U CN 2011204407574 U CN2011204407574 U CN 2011204407574U CN 201120440757 U CN201120440757 U CN 201120440757U CN 202322557 U CN202322557 U CN 202322557U
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Abstract
The utility model discloses a hydroponic plant and filter dam combined eutrophic water body ex-situ remediation system, which consists of a water inlet and lead system, a water drop table, a coarse sand-cress composite ecological filter dam, a fine sand-fly ash-ryegrass composite ecological filter dam, a fine sand-bermuda grass filter dam and a water outlet and lead system, wherein the water inlet and lead system consists of a water elevator and a water distribution ditch; a water outlet end of the water elevator is arranged in the water distribution ditch; the water drop table, the coarse sand-cress composite ecological filter dam, the fine sand-fly ash-ryegrass composite ecological filter dam, the fine sand-bermuda grass filter dam and the water outlet and lead system are sequentially arranged on one side of a water discharge end of the water distribution ditch; and the water discharge end of the water distribution ditch is communicated with a water inlet end of the coarse sand-cress composite ecological filter dam through the water drop table. The system has a simple structure and a good effect, is low in operation and management cost, is adaptable to water quality purification of a highly polluted urban river and water quality restoration of a slightly polluted river and has high adaptability.
Description
Technical field
The utility model relates to a kind of repair system that is applicable to the urban river eutrophication water, specifically the eutrophication water ex-situ repair system that combines with filter dam of hydroponic plant.
Background technology
The urban river water system is the important ecoscape together in cities and towns, to improving town ecological environment and quality of residents'life important meaning is arranged, and the water quality of river course water system will be the key that influences its effect.The urban river is perhaps crossed around the city, is perhaps worn the city and mistake owing to close on resident living area, and its water quality receives resident's interference for a long time and situation about worsening is unusual general phenomenon in the big small city of China various places.In more southern cities, like the city of river densities such as Wuxi, Suzhou, Changzhou, its city river is owing to polluted for a long time, and water quality has deteriorated into stage to the utmost, even gives out a foul smell in summer.Administer city river and become these geographic environment priority projects.And in northern city, like Luoyang, this situation is ubiquity also.
Administer around the urban river, carried out a large amount of research both at home and abroad, at present verified have the measure of certain effect to mainly contain: (1) desilting, excavate river bottom mud, and alleviate the river course endogenous pollution; (2) diversion dilution, mainly be draw close on the great river water with the dilution city river, and drive flowing of city river; (3) aquatic vegetation recovers, and at the suitable section of condition, adopts the ecological recovery engineering, aquatic vegetation is recovered, to repair the purification mechanism of city river self; (4) dystopy reparation, the contaminated water that draws city river gets into the restoration of the ecosystem system and repairs, and then adds to the river course again, to reduce Pollutant levels in the river water body.For above these several types of technology, preceding two types of main heavy constructions that rely on, more serious to the ecological damage of river course system itself, and not strong to the dynamic controllability of water quality, have high input, effect is often not good.Domestic many units once carried out aquatic vegetation and recovered, and perhaps introduced the technical study that the external source vegetation is repaired water body, like the floating bed technique of manual work; This type technology is used for the lake more, for the river course effect how, and can be steadily in the long term; The operation of efficient low-consume ground lacks strong data and supports.The repairing effect of dystopy recovery technique in river water body also once had many researchs, and be wherein the most noticeable with the research that utilizes control of cash crop water planting and reparation sewage river water quality that Southeast China University was carried out.They utilize the crop of suitable water plantings such as Wildcelery Herb, mater convolvulus; Designed one and overlapped the ecological reestablishment that is filtered into principal feature with root system of plant; And set up the dystopy repairing test field of pilot scale; Be applied in the polluted river channel water quality dystopy recovery project of southern city Yixing City, played certain effect reducing aspects such as water nutrition salt concn, water transparency.
Basic characteristics of city eutrophicated polluted water are; Though nutritive salt concentration for aquatic plant plankton is high in the water, for the plant that is adapted to terrestial enviornment, its concentration is low; And; The nutritive salt of considerable part is that the form on the suspended particle exists in the water to be adsorbed on, and also has considerable part to exist with the form of organic granular, and terrestrial plant often is difficult to absorb.City river also has oxygen-consumption big simultaneously, the characteristics that transparency is low.These characteristics also are unfavorable for the growths of various cash crop, especially adapt to the plant of terrestial enviornment like this type of mater convolvulus.And these plants often lack flourishing root system and strong ability to suspended matter absorption and conversion in the water like aquatic floating plants such as Herba Eichhorniae, water lettuces.Utilize merely root system of plant as filtering net to filter pollutant in water, it is often not high to produce effects, reason also here.Therefore, all kinds of cash crop of successful use to realize water quality control and repair, the enrichment mechanism that how to improve suspended matter in the effective water is crucial.
The utility model content
The purpose of the utility model is the deficiency for solving the problems of the technologies described above; The eutrophication water ex-situ repair system that provides hydroponic plant to combine with filter dam; System architecture is simple, and the operational management cost is low, and is good to highly polluted city river effects of purification quality.
The utility model is the deficiency that solves the problems of the technologies described above; The technical scheme that is adopted is: the eutrophication water ex-situ repair system that hydroponic plant combines with filter dam; Constitute by water inlet diversion system, drop platform, coarse sand-Chinese celery complex ecological filter dam, fine sand-flyash-rye grass complex ecological filter dam, fine sand-Bermuda grass filter dam and water outlet diversion system; Described water inlet diversion system is made up of water elevator and cloth water channel; The water side of water elevator is arranged in the cloth water channel; Discharge ends one side of cloth water channel is provided with drop platform, coarse sand-Chinese celery complex ecological filter dam, fine sand-flyash-rye grass complex ecological filter dam, fine sand-Bermuda grass filter dam and water outlet diversion system successively; Drop platform height is 0.5-2m; The effusive water of cloth water channel discharge ends flow to the water outlet diversion system through coarse sand-Chinese celery complex ecological filter dam, fine sand-flyash-rye grass complex ecological filter dam and fine sand-Bermuda grass filter dam successively from the drop platform is backward down, and water surface elevation is no more than the dam body end face of coarse sand-Chinese celery complex ecological filter dam, fine sand-flyash-rye grass complex ecological filter dam and fine sand-Bermuda grass filter dam;
Described coarse sand-Chinese celery complex ecological filter dam, dam body is the thick river sand formation of 5-10 ㎜ by particle diameter, and its square section is trapezoidal, and kind is implanted with Wildcelery Herb in the dam body upper surface;
Described fine sand-flyash-rye grass complex ecological filter dam; The dam body square section is trapezoidal; Dam body is made up of thin river sand, flyash mixing, and the volume ratio of thin river sand and flyash is 2:1, and wherein thin river sand grains directly is 0.5-1.5 mm; The particle diameter 125 μ m-2 mm of flyash, kind is implanted with rye grass in the dam body upper surface;
Described fine sand-Bermuda grass filter dam, dam body are that the thin river sand of 0.25-1 mm constitutes by particle diameter, and the dam body square section is trapezoidal, and kind is implanted with Bermuda grass in the dam body upper surface, and the water port of fine sand-Bermuda grass filter dam is connected with the water-in of water outlet diversion system.
Described coarse sand-Chinese celery complex ecological filter dam is 50-80 cm with the level interval of drop platform.
Described coarse sand-Chinese celery complex ecological filter dam is provided with two groups at least, and the spacing between filter dam is 50-80 cm.
Described coarse sand-Chinese celery complex ecological filter dam, dam body face width 30-60 cm that go to the bottom, upper surface is wide to be 20-35 cm, highly is 10-30 cm.
Described fine sand-flyash-rye grass complex ecological filter dam is provided with two groups at least, and the spacing between filter dam is 50-80 cm.
Described fine sand-flyash-rye grass complex ecological filter dam, dam body face width 30-60 cm that go to the bottom, upper surface is wide to be 20-35 cm, highly is 10-30 cm.
Described fine sand-Bermuda grass filter dam is provided with two groups at least, and the spacing between filter dam is 50-80 cm.
Described fine sand-Bermuda grass filter dam, dam body face width 30-60 cm that go to the bottom, upper surface is wide to be 20-35 cm, highly is 10-30 cm.
Described water outlet diversion system is made up of catchment area, water outlet flume, and the distance between the water side of catchment area and fine sand-Bermuda grass filter dam is 25-50 cm.
The beneficial effect of the utility model is:
1, system architecture is simple, and the operational management cost is low, and is effective; Can adapt to highly polluted city river purification of water quality, also can adapt to the river water quality reparation of little pollution, flexibility is strong, is difficult for stopping up, and goes out the water clarity height, and nutrient concentrations is low, and water quality is good.
2, employing constitutes cleaning treatment system by coarse sand-Chinese celery complex ecological filter dam, fine sand-flyash-rye grass complex ecological filter dam and fine sand-three grades of filter dams of Bermuda grass filter dam; Each dam body purifies by different level, and decontamination effect improving is better, particularly the variable grain degree that is adopted of three grades of dam bodys of reasonably optimizing; Cooperate different root systems of plant to accomplish purification through different granularity gaps; Not only pollution-free, and it is better to purify back water quality, can directly be discharged into and replenish the water source in the river.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of the utility model embodiment.
Mark among the figure: 1, water inlet diversion system, 101, water elevator, 102, the cloth water channel; 2, drop platform, 3, coarse sand-Chinese celery complex ecological filter dam, 4, fine sand-flyash-rye grass complex ecological filter dam; 5, fine sand-Bermuda grass filter dam; 6, water outlet diversion system, 601, the catchment area, 602, the water outlet flume.
Embodiment
As shown in the figure; The eutrophication water ex-situ repair system that hydroponic plant combines with filter dam; Constitute by water inlet diversion system 1, drop platform 2, coarse sand-Chinese celery complex ecological filter dam 3, fine sand-flyash-rye grass complex ecological filter dam 4, fine sand-Bermuda grass filter dam 5 and water outlet diversion system 6; Described water inlet diversion system 1 is made up of water elevator 101 and cloth water channel 102; The water side of water elevator 101 is arranged in the cloth water channel 102, and discharge ends one side of cloth water channel 102 is provided with drop platform 2, coarse sand-Chinese celery complex ecological filter dam 3, fine sand-flyash-rye grass complex ecological filter dam 4, fine sand-Bermuda grass filter dam 5 and water outlet diversion system 6 successively; Constitute cleaning treatment system, accomplish purifying treatment by coarse sand-Chinese celery complex ecological filter dam 3, fine sand-flyash-rye grass complex ecological filter dam 4 and fine sand-5 three grades of filter dams of Bermuda grass filter dam municipal effluent.
Described water inlet diversion system 1; Wherein water elevator 101 is the machine of drawer river, is used for the extracting river and introduces the cloth water channel, and cloth water channel 102 is that a passage major function is for introducing polluted river water in the purification system; The cloth water channel can be formed by commercially available pvc pipe serial connection, also can be piled up by masonry to form.
Described drop platform 2 is that the platform that equates with the cleaning treatment system width constitutes, and the discharge ends of cloth water channel 102 is communicated with the feed-water end of coarse sand-Chinese celery complex ecological filter dam 3 through drop platform 2; Drop platform 2 highly is 0.5-2m; That is to say that the distance that the platform 2 upper surface liquid levels that drop in vertical direction exceed bottom coarse sand-Chinese celery complex ecological filter dam 3 liquid levels is 0.5-2m, can adopt 0.5m, 1 m or 2m, optimal spacing is 1m; After river in the cloth water channel passes through the drop platform; Fall into the cleaning treatment system of bottom,, therefore fall through the drop platform because the drop platform has a difference of altitude; Promote the concentration of dissolved oxygen to improve, can play the oxygenation effect of a nature.
Described coarse sand-Chinese celery complex ecological filter dam 3, the dam body square section is trapezoidal, and dam body face width 30-60 cm that go to the bottom generally adopt 30,50 or 60 ㎝, and optimum width is 50 ㎝; Upper surface is wide to be 20-35 cm, is generally 20,30 or 35 ㎝, and the upper surface optimum width is 20 ㎝; Highly be 10-30 cm, optimum height is 20 ㎝; Dam body is the thick river sand formation of 5-10 ㎜ by particle diameter, and kind is implanted with Wildcelery Herb in the dam body upper surface, and the Wildcelery Herb root system can freely be distributed in the dam body; And further be diffused in the outer water of dam body, the Wildcelery Herb root system has flourishing multistage radicula system, but the suspended substance in the active adsorption water; And the thick river sand of dam body can promote microorganic adhesion; Form microbial film, the organic substance that suspends in the water is adsorbed and decomposes, the nutritive salt in the water then can be by the Wildcelery Herb absorption cleaning.Coarse sand-Chinese celery complex ecological filter dam is a unit with two groups generally; According to the quality of river water situation, can increase, the spacing between filter dam is 50-80 cm; General 50,60 or 80 ㎝ that adopt, first coarse sand-Chinese celery complex ecological filter dam is 50-80 cm with drop platform level interval.
Described fine sand-flyash-rye grass complex ecological filter dam 4, the dam body square section is trapezoidal, and dam body face width 30-60 cm that go to the bottom generally adopt 30,50 or 60 ㎝, and optimum width is 50 ㎝; Upper surface is wide to be 20-35 cm, is generally 20,30 or 35 ㎝, and the upper surface optimum width is 20 ㎝; Highly be 10-30 cm, optimum height is 20 ㎝; Dam body is made up of thin river sand, flyash mixing, and the volume ratio of thin river sand and flyash is 2:1, and wherein thin river sand grains directly is 0.5-1.5 mm, the particle diameter 125 μ m-2 mm of flyash, and kind is implanted with rye grass in the dam body upper surface; The filter dam that is made up of thin river sand and flyash can be strengthened and is difficult to settled suspended matter, and collects and be dissolved in nutritive salt and the soluble substance in the river, under the acting in conjunction of mikrobe, in enrichment and the filter dam, absorbs removal by rye grass." fine sand-flyash-rye grass complex ecological filter dam " is a unit with two groups also, and the spacing between filter dam is 50-80 cm.Optimal spacing is 60 ㎝.
Described fine sand-Bermuda grass filter dam 5, dam body are that the thin river sand of 0.25-1 mm constitutes by particle diameter, and the dam body square section is trapezoidal, and dam body face width 30-60 cm that go to the bottom generally adopt 30,50 or 60 ㎝, and optimum width is 50 ㎝; Upper surface is wide to be 20-35 cm, is generally 20,30 or 35 ㎝, and the upper surface optimum width is 20 ㎝; Highly be 10-30 cm, optimum height is 20 ㎝; Kind is implanted with Bermuda grass in the dam body upper surface, is connected with the water-in of water outlet diversion system after the draining of fine sand-Bermuda grass filter dam.Fine sand-Bermuda grass filter dam, river are after above-mentioned steps is handled, and pollution substance contained in the river reduces greatly; But, still have some suspended matters, and dissolved organic matter is residual; The secretory product that comprises the crop root of on above-mentioned filter dam, cultivating that comes needs further to remove, for this reason; Designing two groups is the filter dam of dam body with thin river sand, with the decontamination effect improving of consolidation system.On dam body, plant Bermuda grass.Bermuda grass mainly plays the effect of stablizing dam body at this, breaks down under the water impact avoiding, and the spacing between filter dam is 50-80 cm.Optimal spacing is 60 ㎝.
Described water outlet diversion system 6 is made up of catchment area 601, water outlet flume 602; Distance between the water side of catchment area and fine sand-Bermuda grass filter dam is 25-50 cm; Optimum distance is 30 cm, and the water outlet flume can also can be assembled by masonry by pvc pipe material serial connection.Water outlet is flowed back to the suitable section of city river again through the guiding of water outlet diversion system, replenishes the river course.
To the water side, its gradient is controlled in 5 % from feed-water end for the utility model, total system, in case dam body is corroded in water impact, and simultaneously with mild flow velocity, but the sedimentation of sedimentation pollution substance in the promotion river, the detergent power of enhanced system; Water depth is controlled at 15-20 cm in the system, and the height of the depth of water is no more than the height of dam body, keeps the more shallow depth of water, is beneficial to the natural reaeration of water body, strengthens microbic activity in filter dam; In the total system; Being arranged in order of three types of filter dam systems arranges it is the key of river water cleaning, is the restoration of the ecosystem demand of the river that adapts to different pollution levels, and three types of filter dam systems can increase unit number successively; But its ordering can not be put upside down; Otherwise be difficult to play due effect, cause dam body to stop up on the contrary easily, the situation that water overflows dam body.
The operating process of this system: river via the water elevator water lift after, introduce the cloth water channel, get into the drop platform again; After river falls, get into cleaning treatment system, at first slowly pass through " coarse sand-Chinese celery complex ecological filter dam "; Remove nutritive salt, suspended contaminant in the water through deposition, filtration and the absorption of Chinese celery root system, again through " fine sand-flyash-rye grass complex ecological filter dam ", residual suspended substance obtains filtering removal in the water; And dissolved contains quantity of material and phosphate radical etc. by flyash absorption removal in the water, again through " fine sand-Bermuda grass filter dam ", makes trace suspension pollutent residual in the river and solubility pollutent obtain removing; Water outlet is after collecting; Via the guiding of water outlet diversion system, refill the suitable section of city river, replenish the river course.
Claims (9)
1. the eutrophication water ex-situ repair system that combines with filter dam of hydroponic plant; It is characterized in that: constitute by water inlet diversion system (1), drop platform (2), coarse sand-Chinese celery complex ecological filter dam (3), fine sand-flyash-rye grass complex ecological filter dam (4), fine sand-Bermuda grass filter dam (5) and water outlet diversion system (6); Described water inlet diversion system (1) is made up of water elevator (101) and cloth water channel (102); The water side of water elevator (101) is arranged in the cloth water channel (102); Discharge ends one side of cloth water channel (102) is provided with drop platform (2), coarse sand-Chinese celery complex ecological filter dam (3), fine sand-flyash-rye grass complex ecological filter dam (4), fine sand-Bermuda grass filter dam (5) and water outlet diversion system (6) successively; Drop platform (2) highly is 0.5-2m; The effusive water of cloth water channel (102) discharge ends passes through coarse sand-Chinese celery complex ecological filter dam (3), fine sand-flyash-rye grass complex ecological filter dam (4) and fine sand-Bermuda grass filter dam (5) successively from the following backwardness of drop platform (2) and flow to water outlet diversion system (6), and water surface elevation is no more than the dam body end face of coarse sand-Chinese celery complex ecological filter dam (3), fine sand-flyash-rye grass complex ecological filter dam (4) and fine sand-Bermuda grass filter dam (5);
Described coarse sand-Chinese celery complex ecological filter dam (3), dam body is the thick river sand formation of 5-10 ㎜ by particle diameter, its square section is trapezoidal;
Described fine sand-flyash-rye grass complex ecological filter dam (4), the dam body square section is trapezoidal;
Described fine sand-Bermuda grass filter dam (5), dam body are that the thin river sand of 0.25-1 mm constitutes by particle diameter, and the dam body square section is trapezoidal.
2. the eutrophication water ex-situ repair system that hydroponic plant according to claim 1 combines with filter dam is characterized in that: described coarse sand-Chinese celery complex ecological filter dam (3) is 50-80 cm with the level interval of drop platform (2).
3. the eutrophication water ex-situ repair system that hydroponic plant according to claim 1 combines with filter dam is characterized in that: described coarse sand-Chinese celery complex ecological filter dam (3) is provided with two groups at least, and the spacing between filter dam is 50-80 cm.
4. the eutrophication water ex-situ repair system that hydroponic plant according to claim 3 combines with filter dam; It is characterized in that: described coarse sand-Chinese celery complex ecological filter dam (3); Dam body face width 30-60 cm that go to the bottom, upper surface is wide to be 20-35 cm, highly is 10-30 cm.
5. the eutrophication water ex-situ repair system that hydroponic plant according to claim 1 combines with filter dam; It is characterized in that: described fine sand-flyash-rye grass complex ecological filter dam (4) is provided with two groups at least, and the spacing between filter dam is 50-80 cm.
6. the eutrophication water ex-situ repair system that hydroponic plant according to claim 5 combines with filter dam; It is characterized in that: described fine sand-flyash-rye grass complex ecological filter dam (4); Dam body face width 30-60 cm that go to the bottom; Upper surface is wide to be 20-35 cm, highly is 10-30 cm.
7. the eutrophication water ex-situ repair system that hydroponic plant according to claim 1 combines with filter dam is characterized in that: described fine sand-Bermuda grass filter dam (5) is provided with two groups at least, and the spacing between filter dam is 50-80 cm.
8. the eutrophication water ex-situ repair system that hydroponic plant according to claim 7 combines with filter dam; It is characterized in that: described fine sand-Bermuda grass filter dam (5); Dam body face width 30-60 cm that go to the bottom, upper surface is wide to be 20-35 cm, highly is 10-30 cm.
9. the eutrophication water ex-situ repair system that hydroponic plant according to claim 1 combines with filter dam; It is characterized in that: described water outlet diversion system (6) is made up of catchment area (601), water outlet flume (602), and the distance between the water side of catchment area (601) and fine sand-Bermuda grass filter dam (5) is 25-50 cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011204407574U CN202322557U (en) | 2011-11-09 | 2011-11-09 | Hydroponic plant and filter dam combined eutrophic water body ex-situ remediation system |
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| CN2011204407574U CN202322557U (en) | 2011-11-09 | 2011-11-09 | Hydroponic plant and filter dam combined eutrophic water body ex-situ remediation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503037A (en) * | 2011-11-09 | 2012-06-20 | 河南科技大学 | Hydroponic plant and filter dam combined eutrophication water body ex-situ remediation system |
| CN103960193A (en) * | 2014-05-07 | 2014-08-06 | 复旦大学 | Songjiang perch breeding water treatment system for simulating natural ecological environment and operation management method |
-
2011
- 2011-11-09 CN CN2011204407574U patent/CN202322557U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503037A (en) * | 2011-11-09 | 2012-06-20 | 河南科技大学 | Hydroponic plant and filter dam combined eutrophication water body ex-situ remediation system |
| CN102503037B (en) * | 2011-11-09 | 2013-06-12 | 河南科技大学 | Hydroponic plant and filter dam combined eutrophication water body ex-situ remediation system |
| CN103960193A (en) * | 2014-05-07 | 2014-08-06 | 复旦大学 | Songjiang perch breeding water treatment system for simulating natural ecological environment and operation management method |
| CN103960193B (en) * | 2014-05-07 | 2016-08-24 | 复旦大学 | The numerous foster water treatment system of Sungkiang weever of simulation natural ecological environment and Operations Management method |
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Granted publication date: 20120711 Termination date: 20131109 |