CN204474416U - A kind of artificial horizontal subsurface flow wetland and anti-clogging plug settling tank thereof - Google Patents
A kind of artificial horizontal subsurface flow wetland and anti-clogging plug settling tank thereof Download PDFInfo
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- CN204474416U CN204474416U CN201520069011.5U CN201520069011U CN204474416U CN 204474416 U CN204474416 U CN 204474416U CN 201520069011 U CN201520069011 U CN 201520069011U CN 204474416 U CN204474416 U CN 204474416U
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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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model " a kind of artificial horizontal subsurface flow wetland and anti-clogging plug settling tank thereof ", belongs to ecological engineering technology field.A kind of artificial horizontal subsurface flow wetland, is characterized in that, comprise multiple horizontal wetland unit, be provided with anti-clogging plug settling tank between wetland unit; Described anti-clogging plug settling tank comprises the pond main body and the water-in be arranged in the main body wall of described pond and water outlet that can be used as container, and the position of described water-in is lower than described water outlet; Described water-in is for receiving sewage to be precipitated, and described water outlet is used for the water of described pond main body internal upper part to discharge.The settling tank that the utility model provides can remove the impurity and/or suspended substance that easily result in blockage in sewage effectively, plays anticlogging effect well, and structure is simple, cost is low, efficiency is high, be convenient to maintenance, applied range.
Description
Technical field
The utility model relates to ecological engineering technology field, is specifically related to a kind of artificial horizontal subsurface flow wetland and anti-clogging plug settling tank thereof.
Background technology
Artificial swamp is made up of artificial substratum (rubble, gravel etc.) and growth waterplant thereon, sewage is in the top layer of Wetland Substrate or surperficial current downflow, by the nutritive substance in a series of process degradation water such as absorption, plant absorption, microbial transformation of matrix, it is a kind of matrix-plant-microflora being different from the uniqueness of natural wetland.But the mentality of designing due to horizontal drowned flow artificial wet land causes current wetland very easily to occur situation about blocking; Align according to EPA the investigation that more than 100 artificial swamp being in operation do to show, nearly all there is substrate clogging problem in the facility of half in 5 years, and show as fluid conductivity and reduce, decontamination effect improving declines, and operation life shortens.Can say except outside artificial wetland treatment facility occupation of land problem, the blockage problem of artificial swamp matrix has become the biggest obstacle factor of its application.
In order to tackle the substrate clogging problem of current wetland, domestic and international investigator have also been made more research, is summed up and mainly contains pre-treatment, aeration aerating, stops bed and have holidays by turns, change matrix, add earthworm, apply the methods such as microbial inhibitor.
(1) pre-treatment
Pre-treatment can reduce suspended substance in wetland water inlet and organic loading (particularly when solids content is larger in organic loading), the generation of effectively prevention artificial swamp blocking.Common pretreatment technology has grid, anaerobic precipitation, coagulating sedimentation etc.Though these measures effectively can postpone the time that substrate clogging occurs, the generation of the substrate clogging that dissolved organic matter causes can not be stopped, and the investment of system, running cost and maintenance management difficulty can be increased.Whether be applicable to adopting these class methods needs to increase in the operation caused thus and personal expenditures and change needed for matrix after substrate clogging to weigh between expense.
(2) aeration aerating
Because anaerobic state is the major reason causing extracellular polymeric accumulation in matrix, therefore preaeration oxygenation is carried out to sewage and can play certain prevention ponding.Because sewage its DO value in process of osmosis can reduce rapidly, around water spraying pipe, air supply then effectively can improve the DO concentration of sewage, maintain the good oxygen condition in matrix, the Decomposition of microorganism is maintained, the accumulation of extracellular polymeric in matrix can also be prevented simultaneously.But the system and arranging thing caused increases, complicated operation and expense rise, and make its enforcement also difficult.
(3) stop bed, have holidays by turns
After artificial swamp is blocked, external current way allows the stop bed of a body through several week rest and reorganize recuperation section perviousness, and the length of phase of having holidays by turns then depends on the weather condition, generally from 7 days to one month not etc.Stopping work and crop rotation by stopping bed, the oxygen in air can be made to enter wetland inside on the one hand, accelerating the organism deposited in matrix degradation; What the various nutrition that on the other hand bacteria metabolism needs can not get continuing supplements, and the microbes in matrix progresses into the endogenous respiration phase, consumes composition, gradually aging death in extracellular polymeric or born of the same parents.But this kind of measure needs to build multiple parallel wetland structures, can increase considerably floor space and the investment cost of wet land treating system.
(4) wetland fraction matrix is changed
Research finds, the most incidental region of blocking is generally overlayer matrix near inhalant region, for horizontal subsurface flow wetland, generally to occur in before current direction length 1/10 ~ 1/4 section.For this reason, the function of efficient recovery artificial swamp can be had by changing wetland fraction matrix, shortcoming be comparatively large for large-scale wetland quantities, change difficulty, artificial swamp needs to stop bed and changes length of taking time when changing.Investigator finds, running in the complex vertical current wetland of 5 years continuously, permeability coefficient occurs to decline mainly in the downstream tank near feed-water end, and to decline maximum be not on wetland top layer, but below top layer 15 ~ 30cm place, this exactly proves the blocking that matrix is turned to anaerobic environment that organic metabolism product easily occurs to cause by well-oxygenated environment.But this result of study it is also proposed problem, horizontal subsurface flow wetland generally designs significant depth at 60 ~ 80cm, this means to solve blockage problem as matrix need be changed, to change the plant growth medium layer that microorganism active is the strongest, root system of plant is the most flourishing, after changing Wetland Substrate like this, wetland plant and substrate microorganism will need the long period (it is generally acknowledged more than at least one year) to carry out again maturation to obtain the recovery of processing power.
Make a general survey of domestic and international present Research, cause the many factors of artificial swamp substrate clogging, corresponding preventive measures and Restoration strategy are also a lot, but effect difference is very large, and often cure the symptoms, not the disease.In fact comprehensive, organic pollutant and meta-bolites thereof are the major causes of artificial swamp blocking, mineral suspensions in water inlet and this kind of solid particulate of organic solid can be able to good solution by the pretreatment mode of low cost (such as grid, settling tank, flocculation etc.), but the microbial metabolites (comprising EPS from bacteria etc.) accumulated in dissolved organic matter and matrix is difficult to by lower cost technique or even insurmountable beyond doubt, in a very long time from now on, the emphasis that blockage problem will become in constructed wetland waste water treatment technology research.
Utility model content
In order to solve the susceptible to plugging difficult problem of horizontal drowned flow artificial wet land, the utility model provides a kind of horizontal subsurface flow wetland and anti-clogging plug settling tank thereof.
The technical solution of the utility model is as follows:
A kind of artificial horizontal subsurface flow wetland, is characterized in that, comprise multiple horizontal wetland unit, be provided with anti-clogging plug settling tank between wetland unit;
Described anti-clogging plug settling tank comprises the pond main body and the water-in be arranged in the main body wall of described pond and water outlet that can be used as container, and the position of described water-in is lower than described water outlet;
Described water-in is for receiving sewage to be precipitated, and described water outlet is used for the water of described pond main body internal upper part to discharge.
The relative both sidewalls of described pond main body has through hole, and described water-in refers to the through hole that the institute open position on a sidewall is lower; Described water outlet refers to the through hole that the institute open position on another side sidewall is higher.
Described anti-clogging plug settling tank also comprises the bend pipe of one section of both ends open; The relative both sidewalls of described pond main body has through hole, and described water-in refers to the through hole opened on a sidewall; The one end open of described bend pipe is inboardend, is close in the through hole being arranged on and another side sidewall is opened, and the other end opening of described bend pipe is free end, to be in the inner chamber of described pond main body and upwards; Described water outlet refers to the free end of described bend pipe.
Multiple described settling tank is provided with between described two artificial wetland units.
Connected by drainage pipeline between multiple described settling tank.
For the anti-clogging plug settling tank of artificial horizontal subsurface flow wetland, it is characterized in that, comprise the pond main body and the water-in be arranged in the main body wall of described pond and water outlet that can be used as container, the position of described water-in is lower than described water outlet;
Described water-in is for receiving sewage to be precipitated, and described water outlet is used for the water of described pond main body internal upper part to discharge.
The relative both sidewalls of described pond main body has through hole, and described water-in refers to the through hole that the institute open position on a sidewall is lower; Described water outlet refers to the through hole that the institute open position on another side sidewall is higher.
Described anti-clogging plug settling tank also comprises the bend pipe of one section of both ends open; The relative both sidewalls of described pond main body has through hole, and described water-in refers to the through hole opened on a sidewall; The one end open of described bend pipe is inboardend, is close in the through hole being arranged on and another side sidewall is opened, and the other end opening of described bend pipe is free end, to be in the inner chamber of described pond main body and upwards; Described water outlet refers to the free end of described bend pipe.
Described pond main body is brick laying structure.
The utility model breaches usual thinking of the prior art, uses simple know-why, provides a kind of anticlogging settling tank being applied to horizontal drowned flow artificial wet land, solves the susceptible to plugging difficult problem of horizontal drowned flow artificial wet land.
The anti-clogging plug settling tank that the utility model provides is arranged between two artificial wetland units, instead of disclosed in prior art, only settling tank is set before entering artificial swamp unit, the positively effect of such setting is, after the sewage filtered by artificial swamp unit mesostroma enters anti-clogging plug settling tank, in described settling tank is to sewage, the impurity easily resulted in blockage of greater particle size and/or suspended substance precipitate, thus the factor causing blocking was eliminated to a great extent before sewage enters next artificial swamp unit, thus reach anticlogging object.In addition, the feature of described anti-clogging plug settling tank is also the height of height lower than water outlet of described settling tank water-in, the beneficial effect of such generation is, after sewage enters settling tank from water-in, difference of altitude between water outlet and water-in can reserve time enough and space to the precipitation of impurity in settling tank and/or suspended substance, make precipitation more thorough, the impurity easily resulted in blockage that contained before entering next artificial swamp unit of water of discharging from water outlet like this and/or suspended substance less, anticlogging better effects if.
The described anti-clogging plug settling tank simple structure that the utility model provides, cost is low, effective, efficiency is high, running maintenance is convenient and easy, can permanently effectively use.
Accompanying drawing explanation
Fig. 1 is the structural representation that No. 1 horizontal drowned flow artificial wet land anti-clogging plug settling tank described in the utility model embodiment 1 has water-in side.
Fig. 2 is the cross-sectional view of No. 1 horizontal drowned flow artificial wet land anti-clogging plug settling tank described in the utility model embodiment 1.
Fig. 3 is the structural representation that No. 1 horizontal drowned flow artificial wet land anti-clogging plug settling tank described in the utility model embodiment 1 has water outlet side.
Fig. 4 is that the utility model adopts the anti-clogging plug settling tank described in embodiment 1 horizontal drowned flow artificial wet land to be carried out to the structural representation of anti-clogging plug application.
Fig. 5 is the cross-sectional view of No. 2 horizontal drowned flow artificial wet land anti-clogging plug settling tanks described in the utility model embodiment 3.
Reference numeral in above-mentioned accompanying drawing represents respectively: 1-anti-clogging plug settling tank; 2-water-in; 3-water outlet; 4-bend pipe; 5-free end; 6-artificial swamp unit; 7-artificial swamp matrix; 8-drainage pipeline; 9-sewage.
Embodiment
Below in conjunction with embodiment, the utility model is further described in detail, but does not limit scope of the present utility model with this.
Embodiment 1, No. 1 horizontal drowned flow artificial wet land anti-clogging plug settling tank
Composition graphs 1 ~ Fig. 3 describes the described No. 1 horizontal drowned flow artificial wet land anti-clogging plug settling tank 1 based on the present embodiment in detail.Described anti-clogging plug settling tank comprises water-in 2 and water outlet 3, and the height of water-in 2 is lower than the height of described water outlet 3, particularly, in the present embodiment, as shown in Figure 2, described settling tank 1 inside is provided with bend pipe 4, and the free end 5 of described bend pipe 4 to be in the inner chamber of described settling tank 1 pond main body and upwards, the inboardend of described bend pipe 4 is close to the water outlet 3 of i.e. described settling tank 1 on the through hole opened that is installed on a sidewall of described settling tank 1, and communicates with settling tank 1 outside; The free end 5 of described bend pipe 4 is higher than the height of described water-in 1; In the present embodiment, described anti-clogging plug settling tank 1 is tetragonal body brick laying structure, and the sidewall being provided with water-in 2 is corresponding with the sidewall being provided with water outlet 3; In the present embodiment, described water-in 2 is specifically arranged to two, and described water outlet 3 is also two.
Described in the present embodiment, other structural parameter of anti-clogging plug settling tank 1 are specific as follows: settling tank 1: high 1500cm, length and wide respectively for 1400cm, water-in 2 width are 200cm; Water-in 2 top distance settling tank top 600cm; Two water-in 2 interval 200cm in the horizontal direction; Each water-in 2 is distance settling tank sidewall edge 400cm in the horizontal direction; Water outlet 3 width is 200cm; The free end distance from top settling tank top 400cm that water outlet 3 bend pipe is bent upwards in settling tank; The inboardend distance from top settling tank top 600cm of water outlet 3 bend pipe; Two water outlet 3 interval 200cm in the horizontal direction; Each water outlet 3 is distance settling tank sidewall edge 400cm in the horizontal direction.
Embodiment 2, No. 1 anti-clogging plug settling tank is utilized to carry out anti-clogging plug application to horizontal drowned flow artificial wet land
As shown in Figure 4, No. 1 anti-clogging plug settling tank described in embodiment 1 is adopted to carry out anti-clogging plug application to horizontal drowned flow artificial wet land.In the present embodiment, be provided with between the 1st artificial wetland unit 6 and the 2nd artificial wetland unit 6 between 2 described anti-clogging plug settling tanks, 1,2 settling tanks 1 and connected by drainage pipeline 8; 1 described anti-clogging plug settling tank 1 is provided with between 2nd artificial wetland unit 6 and the 3rd artificial wetland unit 6.As described in Example 1, the water-in height of described settling tank 1 is surperficial lower than the artificial swamp matrix 7 of artificial swamp unit 6 for the structure of described anti-clogging plug settling tank 1 and structure.
Arrange according to the connection of Fig. 4, sewage 9 oozes out and enters settling tank 1 by water-in 2 from the matrix 7 of the 1st artificial wetland unit 6, precipitates.The top of the one end be bent upwards in settling tank due to water outlet 3 crooked pipeline exceeds water-in 2 top 200cm, in sewage 9, the impurity easily resulted in blockage of greater particle size and/or suspended substance obtain precipitating enough for a long time in settling tank 1, and leave enough spaces in settling tank and come precipitated impurities and/or suspended substance, when sewage 9 water surface is increased to the top of one end that described water outlet 3 crooked pipeline is bent upwards in settling tank, enter through the top of one end that the water of long-time enough precipitations is bent upwards in settling tank from described water outlet 3 crooked pipeline, flow through described water outlet 3 crooked pipeline to discharge to drainage pipeline 8.Because drainage pipeline 8 connects settling tank 1 described in another, carry out a precipitation in the manner described above again, water is discharged and enters the 2nd artificial wetland unit 6.Two-wheeled through two settling tanks precipitates, and the water entering the 2nd artificial wetland unit 6 contains the less impurity easily resulted in blockage and/or suspended substance, thus plays effective anti-clogging plug effect.Flow through the water of the 2nd artificial wetland unit 6 likely containing the new impurity easily resulted in blockage and/or suspended substance, therefore a settling tank 1 is being set when water flows out the 2nd artificial wetland unit 6, wherein by the impurity easily resulted in blockage in precipitation effectively removal water and/or suspended substance, make water enter the 3rd artificial wetland unit 6 smoothly unobstructedly.
Embodiment 3, No. 2 horizontal drowned flow artificial wet land anti-clogging plug settling tanks
Composition graphs 1, Fig. 3 and Fig. 5 describe No. 2 horizontal drowned flow artificial wet land anti-clogging plug settling tanks based on the present embodiment in detail.Described anti-clogging plug settling tank comprises water-in 2 and water outlet 3, and the height of water-in is lower than the height of described water outlet, particularly, in the present embodiment, as shown in Figure 2, described water outlet 3 top distance settling tank top 400cm, described water-in 2 top distance settling tank top 600cm, the two highly differs 200cm in vertical direction.
In the present embodiment, described anti-clogging plug settling tank is tetragonal body structure, and the sidewall being provided with water-in 2 is corresponding with the sidewall being provided with water outlet 3; In the present embodiment, described water-in 2 is specifically arranged to two, and described water outlet 3 is also two.
Described in the present embodiment, other structural parameter of anti-clogging plug settling tank are specific as follows: settling tank 1: high 1500cm, length and wide respectively for 1400cm, water-in 2 width are 200cm; Two water-in 2 interval 200cm in the horizontal direction; Each water-in 2 is distance settling tank sidewall edge 400cm in the horizontal direction; Water outlet 3 width is 200cm; Two water outlet 3 interval 200cm in the horizontal direction; Each water outlet 3 is distance settling tank sidewall edge 400cm in the horizontal direction.
Embodiment 4, No. 2 anti-clogging plug settling tanks are utilized to carry out anti-clogging plug application to horizontal drowned flow artificial wet land
Adopt No. 2 anti-clogging plug settling tanks 1 pair of horizontal drowned flow artificial wet land described in embodiment 3 to carry out anti-clogging plug application, can 1 and/or multiple described anti-clogging plug settling tank 1 be set between two and/or multiple artificial swamp unit.
Sewage oozes out and enters settling tank 1 by water-in from the matrix of an artificial wetland unit, because water outlet top exceeds water-in top 200cm, in sewage, the impurity easily resulted in blockage of greater particle size and/or suspended substance obtain precipitating enough for a long time in settling tank 1, and leave enough spaces in settling tank and come precipitated impurities and/or suspended substance, when the sewage water surface is increased to described water outlet 3, water through long-time enough precipitations enters from described water outlet 3, discharges to another artificial wetland unit or drainage pipeline through described water outlet 3.Take turns precipitation through the precipitation of settling tank 1 or multiple settling tank 1 more, eliminate impurity and/or suspended substance that major part in sewage easily results in blockage, sewage contained impurity and/or suspended substance when entering next artificial swamp unit are tailed off, eliminate the factor resulted in blockage largely, thus reach anticlogging effect.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, without departing from the concept of the premise utility; can also make some improvements and modifications, these improvements and modifications also should be considered as in protection domain of the present utility model.
Claims (9)
1. an artificial horizontal subsurface flow wetland, is characterized in that, comprises multiple horizontal wetland unit, is provided with anti-clogging plug settling tank between wetland unit;
Described anti-clogging plug settling tank comprises the pond main body and the water-in be arranged in the main body wall of described pond and water outlet that can be used as container, and the position of described water-in is lower than described water outlet;
Described water-in is for receiving sewage to be precipitated, and described water outlet is used for the water of described pond main body internal upper part to discharge.
2. artificial horizontal subsurface flow wetland according to claim 1, is characterized in that, the relative both sidewalls of described pond main body has through hole, and described water-in refers to the through hole that the institute open position on a sidewall is lower; Described water outlet refers to the through hole that the institute open position on another side sidewall is higher.
3. artificial horizontal subsurface flow wetland according to claim 1, is characterized in that, described anti-clogging plug settling tank also comprises the bend pipe of one section of both ends open; The relative both sidewalls of described pond main body has through hole, and described water-in refers to the through hole opened on a sidewall; The one end open of described bend pipe is inboardend, is close in the through hole being arranged on and another side sidewall is opened, and the other end opening of described bend pipe is free end, to be in the inner chamber of described pond main body and upwards; Described water outlet refers to the free end of described bend pipe.
4., according to the arbitrary described artificial horizontal subsurface flow wetland of claims 1 to 3, it is characterized in that, between described two artificial wetland units, be provided with multiple described settling tank.
5. artificial horizontal subsurface flow wetland according to claim 4, is characterized in that, is connected between multiple described settling tank by drainage pipeline.
6. for the anti-clogging plug settling tank of artificial horizontal subsurface flow wetland, it is characterized in that, comprise the pond main body and the water-in be arranged in the main body wall of described pond and water outlet that can be used as container, the position of described water-in is lower than described water outlet;
Described water-in is for receiving sewage to be precipitated, and described water outlet is used for the water of described pond main body internal upper part to discharge.
7. anti-clogging plug settling tank according to claim 6, is characterized in that, the relative both sidewalls of described pond main body has through hole, and described water-in refers to the through hole that the institute open position on a sidewall is lower; Described water outlet refers to the through hole that the institute open position on another side sidewall is higher.
8. anti-clogging plug settling tank according to claim 6, is characterized in that, also comprises the bend pipe of one section of both ends open; The relative both sidewalls of described pond main body has through hole, and described water-in refers to the through hole opened on a sidewall; The one end open of described bend pipe is inboardend, is close in the through hole being arranged on and another side sidewall is opened, and the other end opening of described bend pipe is free end, to be in the inner chamber of described pond main body and upwards; Described water outlet refers to the free end of described bend pipe.
9., according to the arbitrary described anti-clogging plug settling tank of claim 6-8, it is characterized in that, described pond main body is brick laying structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520069011.5U CN204474416U (en) | 2015-01-30 | 2015-01-30 | A kind of artificial horizontal subsurface flow wetland and anti-clogging plug settling tank thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520069011.5U CN204474416U (en) | 2015-01-30 | 2015-01-30 | A kind of artificial horizontal subsurface flow wetland and anti-clogging plug settling tank thereof |
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| CN201520069011.5U Expired - Fee Related CN204474416U (en) | 2015-01-30 | 2015-01-30 | A kind of artificial horizontal subsurface flow wetland and anti-clogging plug settling tank thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609561A (en) * | 2015-01-30 | 2015-05-13 | 中国林业科学研究院林业新技术研究所 | Manual horizontal subsurface wetland and anti-clogging sedimentation tank and anti-clogging method thereof |
| CN105923790A (en) * | 2016-06-16 | 2016-09-07 | 中国矿业大学 | Composite horizontal subsurface flow combined artificial wetland system and method |
-
2015
- 2015-01-30 CN CN201520069011.5U patent/CN204474416U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609561A (en) * | 2015-01-30 | 2015-05-13 | 中国林业科学研究院林业新技术研究所 | Manual horizontal subsurface wetland and anti-clogging sedimentation tank and anti-clogging method thereof |
| CN104609561B (en) * | 2015-01-30 | 2017-02-01 | 中国林业科学研究院林业新技术研究所 | Manual horizontal subsurface wetland and anti-clogging sedimentation tank and anti-clogging method thereof |
| CN105923790A (en) * | 2016-06-16 | 2016-09-07 | 中国矿业大学 | Composite horizontal subsurface flow combined artificial wetland system and method |
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