CN201458832U - A falling water aeration artificial wetland sewage treatment system - Google Patents
A falling water aeration artificial wetland sewage treatment system Download PDFInfo
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- CN201458832U CN201458832U CN2009201285756U CN200920128575U CN201458832U CN 201458832 U CN201458832 U CN 201458832U CN 2009201285756 U CN2009201285756 U CN 2009201285756U CN 200920128575 U CN200920128575 U CN 200920128575U CN 201458832 U CN201458832 U CN 201458832U
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Abstract
本实用新型涉及一种跌水曝气人工湿地污水处理系统，由一级或多级串联的跌水曝气潜流人工湿地构成。每级跌水曝气潜流人工湿地包括床体、进水挡墙、出水挡墙和跌水挡板，在进水挡墙和出水挡墙之间的床体内设有若干导流板、碎石填料和挺水植物。本实用新型布水均匀、死水区小、水力冲击均匀，污水在床体中的停留时间延长，不易堵塞，有利于提高出水水质和微生物对污水中氮、磷等营养物质的生物降解，建设运行费用低。本系统在上述效果的联合作用下，可以有效降解城市、城镇生活污水、少量工业废水以及农田排水的污染物质，适用于具有一定坡度的山地和丘陵地区。
The utility model relates to a falling water aeration artificial wetland sewage treatment system, which is composed of one or more series falling water aeration subsurface flow artificial wetlands. Each level of falling water aeration subsurface flow artificial wetland includes a bed body, water inlet retaining wall, outlet water retaining wall and drop water retaining wall, and a number of deflectors, crushed stones are arranged in the bed body between the water inlet retaining wall and the outlet water retaining wall Fillers and emergent plants. The utility model has uniform water distribution, small dead water area, and uniform hydraulic impact. The residence time of sewage in the bed is prolonged, and it is not easy to be blocked. low cost. Under the combined effect of the above effects, this system can effectively degrade urban and urban domestic sewage, a small amount of industrial wastewater and pollutants from farmland drainage, and is suitable for mountainous and hilly areas with a certain slope.
Description
Technical field
The utility model relates to a kind of sewage purification treatment technology, is specifically related to a kind of drop water aeration artificial marsh sewage treatment system, belongs to the environment protection water-treatment technology field.
Background technology
Artificial swamp is a kind of novel ecological wastewater processing technology that grows up the seventies and eighties in 20th century.According to the difference of sewage flow pattern in wetland, artificial wet land sewage treating process can be divided into three types: surface current artificial wetland, drowned flow artificial wet land and vertical current constructed wetland wherein are most widely used with drowned flow artificial wet land.The cleaning principle of artificial swamp is to dispose of sewage by the physics in the Wetlands ecosystems, chemistry and biological three's synergy, have that working cost is low, maintenance management is simple, little to the surrounding enviroment influence, can be decentralized and characteristics that miniaturization is built.At present, artificial swamp shows great advantage in wastewater treatment and eutrophication water improvement, have suitable vast potential for future development.But because people are shorter to the search time of artificial swamp, in actual application, still exist a lot of not enough, as dwell time of sewage is short, wetland easily stops up, inner dissolved oxygen is lower, it is big etc. easily to form slough and floor space.
The utility model content
At the prior art above shortcomings, the purpose of this utility model provides a kind of difficult obstruction, hydraulic detention time is long, dissolved oxygen is high, simple and convenient operation and maintenance, drop water aeration artificial marsh sewage treatment system that operational and administrative expenses is low.
The purpose of this utility model is achieved in that a kind of drop water aeration artificial marsh sewage treatment system, is made of one or more levels placed in-line drop water aeration drowned flow artificial wet land.Every grade of drop water aeration drowned flow artificial wet land comprises a body, and bed body front end is provided with into water barricade, and the water inlet barricade is a water-in with the flow channels that bed body bottom forms, and bed body tail end is provided with the water outlet barricade, and the top of water outlet barricade is the inclination overfall dike that is used for water outlet; Be no less than the drop baffle plate that the outstanding from top to bottom length of two-stage increases successively in the different heights setting of the water outlet barricade outside, the angle of drop baffle plate and horizontal plane is 5～10 °.Be provided with some flow deflectors, rubble filler and emergent in the bed body between water inlet barricade and water outlet barricade, flow deflector laterally stands in the body, and flow deflector forms flow channels up and down with the bed body, and flow channels is crisscross arranged up and down; The caudal end flow deflector forms down flow channels with the bed body, forms the catchment area between this caudal end flow deflector and the water outlet barricade.
Further, described rubble filler is divided into three layers in the bed body that per two flow deflectors are separated into, be respectively medium particle diameter rubble filler, in-small particle size rubble filler and small particle size rubble filler, at different-grain diameter rubble filler intersection arranging multiplayer straggly plane bamboo net, arrange along the descending uniform thickness of three layers of packing material size of water (flow) direction.
Described emergent is fixed in the body by the rubble filler, and emergent is that a kind of emergent or multiple emergent miscegenation form.
Further, described medium particle diameter rubble packing material size is 1.5～2.0cm, in-small particle size rubble packing material size is 110～1.5cm, small particle size rubble packing material size is 0.5～1.0cm.The plane bamboo net that three layers of aperture of adjacent two layers filler intersection layout straggly are 2cm * 2cm.
The utlity model has simple in structure, easy to operate, water distribution is even, the slough is little, water impact is even, be difficult for characteristics such as obstruction, running maintenance convenience. according to water quality situation and topographic features, adopt the plural serial stage mode to dispose of sewage, because the barrier effect of flow deflector, the residence time of sewage in the bed body prolonged, strengthen treatment effect, helped improving effluent quality; And carry out aeration and the series connection of multistage wetland owing to adopt the form of drop, be equivalent to a plurality of aerobic/series connection of anaerobic environment, help the biological degradation of microorganism to nutritive substance such as nitrogen, phosphorus in the sewage. under the combined action of above-mentioned effect, can effectively the degrade pollution substance of city, town domestic sewage, a small amount of trade effluent and farmland drainage of native system.
Compare with the artificial marsh sewage treatment system that generally uses both at home and abroad at present, the utlity model has following characteristics:
(1) is provided with the staggered flow deflector of flow channels up and down, can prolongs hydraulic detention time, effectively reduce the slough area, reduce floor space;
(2) by plane bamboo net and the cancellation pedosphere of being crisscross arranged at different layers filler interface place, effectively reduce the generation of latch up phenomenon;
(3) oxygenation mode is a drop water aeration, not other consumed power;
(4) simple in structure, operation, easy to maintenance, operational and administrative expenses is low;
(5) but plural serial stage improves effluent quality, be applicable to mountain region and knob with certain slope.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the vertical view of Fig. 1.
Arrow is represented water (flow) direction among the figure; Wherein, 1-water-in; The 2-flow deflector; The 3-emergent; Flow channels under the 4-; 5-plane bamboo net; 6-rubble filler; The medium particle diameter rubble of 6-1-filler; Among the 6-2--small particle size rubble filler; 6-3-small particle size rubble filler; The 7-catchment area; The 8-baffle plate that drops; 9-bed body; The 10-barricade of intaking; 11-water outlet barricade.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Referring to Fig. 1 and Fig. 2, as can be seen, the utility model drop water aeration artificial marsh sewage treatment system is made of one or more levels placed in-line drop water aeration drowned flow artificial wet land from the figure.Every grade of drop water aeration drowned flow artificial wet land comprises a body 9, and bed body 9 front ends are provided with into water barricade 10, and water inlet barricade 10 is a water-in 1 with the flow channels that bed body 9 bottoms form.Bed body 9 tail ends are provided with water outlet barricade 11, and the top of water outlet barricade is the inclination overfall dike, and promptly the utility model water-out manners is top inclination overfall dike overflow water outlet.Be no less than the drop baffle plate 8 that the outstanding from top to bottom length of two-stage increases successively in 11 outside different heights settings of water outlet barricade, drop baffle plate 8 is 5～10 ° with the angle of horizontal plane.
Be provided with some flow deflectors 2, rubble filler 6 and emergent 3 in the bed body 9 between water inlet barricade 10 and water outlet barricade 11.Flow deflector 2 laterally stands in the body 9, and flow deflector 2 forms flow channels up and down with bed body 9, and flow channels is crisscross arranged up and down.Rubble filler 6 is divided into upper, middle and lower-ranking in the bed body that per two flow deflectors are separated into, three layers are respectively (is not must be the upper, middle and lower orders, also may be down, in, go up order) medium particle diameter rubble filler 6-1, in-small particle size rubble filler 6-2 and small particle size rubble filler 6-3, wherein in-small particle size rubble filler 6-2 one fixes between medium particle diameter rubble filler 6-1 and the small particle size rubble filler 6-3.Medium particle diameter rubble packing material size is 1.5～2.0cm, in-small particle size rubble packing material size is 1.0～1.5cm, small particle size rubble packing material size is 0.5～1.0cm.At two-layer different-grain diameter rubble filler intersection arranging multiplayer straggly plane bamboo net 5, arrange along the descending uniform thickness of three layers of packing material size of water (flow) direction (up or down).As an embodiment preferably, the plane bamboo net 5 that three layers of aperture of adjacent two layers filler intersection layout straggly are 2cm * 2cm.Multilayer planar bamboo net 5 can play the effect of strengthening biofilm and preventing the mutual blending of filler of different layers.
The utility model is in order effectively to prevent the latch up phenomenon of wetland, pedosphere is not laid on the wetland top layer, emergent 3 is fixed in the body by rubble filler 6. and emergent 3 is not for having the calamus of strong adaptive faculty, Rush, wild rice stem, arrowhead, Canna generalis Bailey etc. to there being native environment, and every grade of wetland can be planted a kind of wetland plant or various plants miscegenation.
Caudal end flow deflector 2 forms flow channels 4 down with bed body 9, forms catchment area 7 between this caudal end flow deflector 2 and the water outlet barricade 11.
The utility model bed body both sides are brick mix structure, and bed body bottom is the concrete anti-seepage structure, and flow deflector and drop baffle plate are brick mix structure.
During operation, sewage is entered by water-in 1, wavy flowing under the barrier effect of flow deflector 2, organic pollutant in the sewage, nutritive substance, heavy metal ion, inorganic pollutant etc. obtain removing under the comprehensive action of emergent 3, microorganism, rubble filler 6, water after the purification is collected via catchment area 7, by the overflow of inclination overfall dike,, fall and enter the next stage artificial swamp along multistage drop baffle plate 8.
Below provide an embodiment:
It is 14% escape canal inside that artificial swamp is positioned at the canal bottom sloping, is total up to 4 grades, every grade long 5.0m, and wide 0.7m, the degree of depth is 0.1～0.7m, and a grid settling pit is arranged before the first step artificial swamp.The rubble filler of every grade of artificial swamp is divided into 3 layers altogether, three layers of packing material size are respectively 1.5～2.0cm, 1.0～1.5cm, 0.5～1.0cm, the filler reversed arrangement between adjacent baffle is always flowed sewage to the small particle size place by large particle size filler, the plane bamboo net that 3 layers of aperture of adjacent two layers filler intersection layout straggly are 2cm * 2cm, the emergent of level Four artificial swamp is respectively calamus, Rush, wild rice stem, Canna generalis Bailey, and water outlet drop baffle plate is 2 grades, and the angle of inclination is 8 °.
COD in water inlet, ammonia nitrogen, total nitrogen, total phosphorus are respectively 150～160mg/L, 52～60mg/L, 58～63mg/L, 5.0～5.4mg/L, and hydraulic load is 4m
3/ (m
2D) under the high hydraulic load situation, after the processing of level Four artificial swamp, the clearance of COD, ammonia nitrogen, total nitrogen, total phosphorus reaches 71%～75%, 55%～58%, 51%～57%, 43%～46% respectively, COD, ammonia nitrogen, total nitrogen, total phosphorus concentration in the water outlet are respectively COD in 37～47mg/L, 22～27mg/L, 25～31mg/L, 2.6～3.1mg/L, the water outlet and reach " urban wastewater treatment firm pollutant emission standard " one-level A standard in (GB18918-2002), total nitrogen is near one-level B standard, and ammonia nitrogen, total phosphorus reach secondary standard.
When water temperature fluctuates in 25 ℃～28 ℃ scopes, the DO average out to 0.11mg/L before artificial wetland effluents at different levels promptly fall in the sewage, after two-stage drop baffle plate falls oxygenation, DO average out to 2.93mg/L, drop oxygenation 2.82mg/L, the drop oxygenation effect is obvious.
COD in water inlet, ammonia nitrogen, total nitrogen, total phosphorus are respectively 116～140mg/L, 37～42mg/L, 42～47mg/L, 3.8～4.3mg/L, and hydraulic load is 1.5m
3/ (m
2D) under the hydraulic load situation, after the processing of level Four artificial swamp, the clearance of COD, ammonia nitrogen, total nitrogen, total phosphorus reaches 83%～84%, 74%～76%, 70%～74%, 85%～87% respectively, COD, ammonia nitrogen, total nitrogen, total phosphorus concentration in the water outlet are respectively 20～23mg/L, 9～11mg/L, 11～14mg/L, 0.52～0.62mg/L, all reach " urban wastewater treatment firm pollutant emission standard " one-level B mark in (GB18918-2002), and wherein COD and total nitrogen reach one-level A mark especially.
When water temperature fluctuates in 25 ℃～28 ℃ scopes, the DO average out to 0.13mg/L before artificial wetland effluents at different levels promptly fall in the sewage, after two-stage drop baffle plate falls oxygenation, DO average out to 3.81mg/L, drop oxygenation 3.68mg/L, the drop oxygenation effect is obvious.
Claims (6)
1. drop water aeration artificial marsh sewage treatment system, constitute by one or more levels placed in-line drop water aeration drowned flow artificial wet land, it is characterized in that: every grade of drop water aeration drowned flow artificial wet land comprises a body (9), bed body (9) front end is provided with into water barricade (10), water inlet barricade (10) is water-in (1) with the flow channels that bed body (9) bottom forms, bed body (9) tail end is provided with water outlet barricade (11), and the top of water outlet barricade is the inclination overfall dike that is used for water outlet; Be provided with some flow deflectors (2), rubble filler (6) and emergent (3) in the bed body (9) between water inlet barricade (10) and water outlet barricade (11), flow deflector (2) laterally stands in the body (9), flow deflector (2) forms flow channels up and down with bed body (9), and flow channels is crisscross arranged up and down; Caudal end flow deflector (2) forms flow channels (4) down with bed body (9), forms catchment area (7) between this caudal end flow deflector (2) and the water outlet barricade (11).
2. drop water aeration artificial marsh sewage treatment system according to claim 1, it is characterized in that: described rubble filler (6) is divided into three layers in the bed body (9) that per two flow deflectors (2) are separated into, be respectively medium particle diameter rubble filler (6-1), in-small particle size rubble filler (6-2) and small particle size rubble filler (6-3), at different-grain diameter rubble filler intersection arranging multiplayer straggly plane bamboo net (5), arrange along the descending uniform thickness of three layers of packing material size of water (flow) direction.
3. drop water aeration artificial marsh sewage treatment system according to claim 1 and 2, it is characterized in that: be no less than the drop baffle plate (8) that the outstanding from top to bottom length of two-stage increases successively in the different heights setting of water outlet barricade (11) outside, drop baffle plate (8) is 5～10 ° with the angle of horizontal plane.
4. drop water aeration artificial marsh sewage treatment system according to claim 3 is characterized in that: described emergent (3) is fixed in the body (9) by rubble filler (6), and emergent is that a kind of emergent or multiple emergent miscegenation form.
5. drop water aeration artificial marsh sewage treatment system according to claim 4, it is characterized in that: described medium particle diameter rubble filler (6-1) particle diameter is 1.5～2.0cm, in-small particle size rubble filler (6-2) particle diameter is 1.0～1.5cm, small particle size rubble filler (6-3) particle diameter is 0.5～1.0cm.
6. according to claim 4 or 5 described drop water aeration artificial marsh sewage treatment systems, it is characterized in that: the plane bamboo net (5) that three layers of aperture of adjacent two layers filler intersection layout straggly are 2cm * 2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201285756U CN201458832U (en) | 2009-08-24 | 2009-08-24 | A falling water aeration artificial wetland sewage treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201285756U CN201458832U (en) | 2009-08-24 | 2009-08-24 | A falling water aeration artificial wetland sewage treatment system |
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| CN201458832U true CN201458832U (en) | 2010-05-12 |
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| CN2009201285756U Expired - Lifetime CN201458832U (en) | 2009-08-24 | 2009-08-24 | A falling water aeration artificial wetland sewage treatment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643278B (en) * | 2009-08-24 | 2011-08-03 | 重庆大学 | Subsurface Flow Constructed Wetland Sewage Treatment System Using Falling Water Aeration and Oxygenation |
| CN105152348A (en) * | 2015-09-30 | 2015-12-16 | 武汉中科水生环境工程股份有限公司 | Anti-blocking baffling type percolation dam |
| CN112851031A (en) * | 2021-01-20 | 2021-05-28 | 杭州沁霖生态科技有限公司 | Subsurface coupling wetland for nitrogen and phosphorus removal |
-
2009
- 2009-08-24 CN CN2009201285756U patent/CN201458832U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643278B (en) * | 2009-08-24 | 2011-08-03 | 重庆大学 | Subsurface Flow Constructed Wetland Sewage Treatment System Using Falling Water Aeration and Oxygenation |
| CN105152348A (en) * | 2015-09-30 | 2015-12-16 | 武汉中科水生环境工程股份有限公司 | Anti-blocking baffling type percolation dam |
| CN112851031A (en) * | 2021-01-20 | 2021-05-28 | 杭州沁霖生态科技有限公司 | Subsurface coupling wetland for nitrogen and phosphorus removal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100512 Effective date of abandoning: 20090824 |