CN102417240A - Constructed wetland sewage treatment device - Google Patents
Constructed wetland sewage treatment device Download PDFInfo
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- CN102417240A CN102417240A CN2011103126953A CN201110312695A CN102417240A CN 102417240 A CN102417240 A CN 102417240A CN 2011103126953 A CN2011103126953 A CN 2011103126953A CN 201110312695 A CN201110312695 A CN 201110312695A CN 102417240 A CN102417240 A CN 102417240A
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Abstract
The invention discloses a constructed wetland sewage treatment device. The constructed wetland sewage treatment device comprises a water distribution system, a sewage treatment system and a dust-collecting tank. The water distribution system is cannular. The sewage treatment system and the dust-collecting tank are annular barrels. The water distribution system is arranged in the center of the sewage treatment system. An end of the water distribution system is a water inlet. A side wall of the bottom of the water distribution system is provided with multiple water distribution apertures. The dust-collecting tank is sleeved on an upper end of the sewage treatment system. An outer wall of the upper end of the sewage treatment system is provided with multiple rows of drainage holes. The water distribution system, the sewage treatment system and the dust-collecting tank are concentric circles. The sewage treatment system and the dust-collecting tank are equally divided into multiple fan-shaped treatment units by multiple vertical water-stop sheets. A dust-collecting tank bottom part of each one of the fan-shaped treatment units is provided with a water outlet. The constructed wetland sewage treatment device effectively solves matrix obstruction problems and improves matrix removal performances. Sewage treated by the constructed wetland sewage treatment device can reach standards and is directly recycled or is discharged into water. The constructed wetland sewage treatment device is simple, is convenient for management, needs low capital construction and operation costs, and has stable treatment effects.
Description
Technical field
The invention belongs to sewage treatment area, be specifically related to a kind of artificial wet field facilities for treating sewage.
Background technology
Artificial swamp is a kind of ecological efficiently water purification technology, has stronger nitrogen phosphorus processing power, and its technology is advanced, technology is reliable, energy-efficient, simple and easy to do, and reduced investment, working cost are low, and ecological environment benefit is remarkable, can realize sewage recycling.Be suitable for the processing of municipal wastewater, industrial and agricultural wastewater and the reparation of polluted water body, but the water direct reuse after the processing or enter in landscape water body, reservoir, river or the lake.More and more come into one's own based on above advantage artificial swamp technology.
At present; Rural areas infrastructure construction weakness, water exhaust system and WWT are perfect inadequately; And existing manual wetland floor space is big, and local view is had certain destruction, and the removal ability of pollutent such as nitrogen, phosphorus is relatively low; Blockage problem is serious, is difficult to keep the lasting operation continuously of artificial wet land treating system.Therefore, develop a kind of matrix of avoiding and stop up, the higher artificial wet field facilities for treating sewage of contaminant removal capacity such as nitrogen, phosphorus has important practical sense.
Summary of the invention
Defective and deficiency to above-mentioned prior art existence; The objective of the invention is to, develop a kind of novel artificial wet field facilities for treating sewage, this device can effectively solve wetland matrix blockage problem; On the basis that promotes contaminant removal capacity, demonstrate fully the view benefit of technology simultaneously.
In order to achieve the above object, the present invention adopts following technical solution:
A kind of artificial wet field facilities for treating sewage comprises water distribution system, Sewage treatment systems and water leg, it is characterized in that, said water distribution system is a tubular, and Sewage treatment systems and water leg are annular canister; Said water distribution system is positioned at the central authorities of Sewage treatment systems, and water distribution system and Sewage treatment systems height equate and shared base plate, all not sealings of water distribution system and Sewage treatment systems upper end;
The upper end of said water distribution system is a water-in, the some distributing holes of uniform distribution on the sidewall of water distribution system bottom; Distributing hole is communicated with water distribution system and Sewage treatment systems;
Said water leg is sleeved on the outside of the upper end of Sewage treatment systems; On the outer wall of Sewage treatment systems upper end, be distributed with the water vent of plurality of rows, the height of every row's water vent equates that the lower surface of water leg is lower than row's water vent down, and water vent is communicated with Sewage treatment systems and water leg;
Water distribution system, Sewage treatment systems and water leg are concentric(al) circles, and wherein, Sewage treatment systems, water leg are divided into some fan-shaped processing units by the water-stop sheet of several vertical directions, and a water outlet is all arranged at the water leg bottom of each fan-shaped processing unit.
The present invention also comprises following other technologies characteristic:
The aperture of said distributing hole is less than the particle diameter of the matrix of being inserted in this device.
Said water leg evenly is divided into 5 fan-shaped processing units by 5 water-stop sheets.
Characteristics of the present invention are embodied in the following aspects:
(1) the present invention is made up of the processing unit of five parallel connections, each processing unit can be simultaneously or intermittent type be used alternatingly; When each processing unit by certain cycle of operation during periodic running, can improve the removal ability of each pollutant effectively, prevent the generation of matrix latch up phenomenon, and keep the continous-stable operation of system.
(2) flow direction of sewage in Sewage treatment systems is upward flow, improves the streamflow regime of wetland matrix through the optimization of water flow mode, alleviates matrix and stops up.
(3) sewage upwards passes through the matrix in the Sewage treatment systems again then before this downwards through the matrix in the water distribution system, after the matrix through the water leg bottom behind the parallel discharge water leg, and final the discharge, through verification experimental verification, good purification, treatment effect are stablized.
(4) treatment unit integral body is circular design, when carrying out waste water control, reaches the purpose of beautifying the environment, and has good landscape effect.
(5) this waste disposal plant is integrated artificial wet land treating system, installs simply, and operational management is convenient, and engineering capital construction and working cost are low, are with a wide range of applications, and are particularly suitable for the distributed WWT in China Rural areas.
Description of drawings
Fig. 1 is an artificial wet field facilities for treating sewage synoptic diagram of the present invention, and wherein, Fig. 1 (a) is a front view, and Fig. 1 (b) is a vertical view.
Fig. 2 is the synoptic diagram of fan-shaped processing unit.
Fig. 3 is a COD concentration synoptic diagram over time in the treat effluent.
Fig. 4 be in the treat effluent TP with the synoptic diagram of the variation of working time.
Fig. 5 be in the treat effluent ammonia nitrogen concentration with the synoptic diagram of the variation of working time.
Fig. 6 be in the treat effluent total nitrogen concentration with the synoptic diagram of the variation of working time.
Below in conjunction with accompanying drawing and embodiment the present invention is done further and to explain.
Embodiment
Like Fig. 1-shown in Figure 2, artificial wet field facilities for treating sewage of the present invention comprises water distribution system 1, Sewage treatment systems 2 and water leg 3; Said water distribution system 1 is cylindric, and Sewage treatment systems 2 is annular canister with water leg 3;
Said water distribution system 1 is positioned at the central authorities of Sewage treatment systems 2, and water distribution system 1 highly equates and shared base plate 7 with Sewage treatment systems 2, water distribution system 1 and all not sealings of Sewage treatment systems 2 upper ends.
The upper end of water distribution system 1 is a water-in 4, the some distributing holes 6 of uniform distribution on the sidewall of water distribution system 1 bottom, and distributing hole 6 is communicated with water distribution system 1 and Sewage treatment systems 2, and the aperture of distributing hole 6 is less than the particle diameter of filler;
Treatment sewage is introduced Sewage treatment systems 2 through the water-in 4 of water distribution system 1; PLC controls the distributing hole 6 of some or several fan-shaped processing units lower end of Sewage treatment systems 2 automatically, thereby controls the synchronous or independent water distribution of each fan-shaped processing unit and the switching between each fan-shaped processing unit.Each fan-shaped processing unit alternate run; Can effectively improve the removal ability of each pollutant, prevent the matrix obstruction, again can be under the situation that the fan-shaped processing unit that is just moving breaks down; Open off-duty fan-shaped processing unit immediately, thereby keep the continous-stable operation of artificial wet land system.
Below laboratory model test for utilizing artificial wet field facilities for treating sewage of the present invention to dispose of sewage:
In this experiment; Water distribution system 1, Sewage treatment systems 2 height are 800mm; The diameter of water distribution system 1 is 100mm, and the external diameter of Sewage treatment systems 2 is 300mm, and water leg 3 external diameters are 350mm; Water leg 3 bottom surfaces are than the water vent of arranging down 9 low 20mm, and water leg 3 upper surfaces and Sewage treatment systems are in same plane.It is the 600mm sphere matrix for 25mm thickness that water distribution system 1 is filled with particle diameter.In the Sewage treatment systems 2 from bottom to top respectively the lay particle diameter be that matrix 300mm and the particle diameter of 8～10mm is the matrix 300mm of 15～18mm, sewage stops 16～24h in artificial wet land treating system.Test applied artificial marsh sewage treatment system and be followed successively by artificial vegetation, overburden layer and packing layer from top to bottom.Wherein, vegetable layer+overburden layer thickness is 200mm.
Can adopt common matrix in the artificial wet land treating system; The contriver adopts the spherical haydite matrix of oneself firing in this test; This sphere haydite matrix obtains according to following preparation method: with the impurity in the terminal coagulate sludge of water supply plant with particle disposal is fallen and make mud in the pasty state; Under 105 ℃, become dewatered sludge through drying treatment, adjacent twice weighing is not less than 3h pitch time, and the weighing value difference is less than minimum precision 0.01g; Kaolin is evenly sneaked into dewatered sludge; 1.0kg sneak into 0.60～0.70kg kaolin in the dewatered sludge, the water ratio of regulating mixing sludge is 60～65%, using this mixing sludge to make particle diameter is the spherical haydite of 15～18mm and 25～28mm; To make ready-made spherical haydite preheating 1h under 200 ℃ of conditions, sintering 120～150min under 600～700 ℃ of temperature condition, getting particle diameter is the spherical haydite matrix finished product of 8～10mm and 15-18mm.
Artificial preparation sewage is adopted in this test, and influent quality is seen table 1.The PLC automatic control system is opened the distributing hole 6 of fan-shaped processing unit lower end, fan-shaped processing unit of each run, and the processing water yield is 3-5L/d; Dwell time of sewage is 16～24h; Each fan-shaped processing unit one after the other operation, sewage gets into water distribution system 1 downwards through water-in 4, flows into the Sewage treatment systems 2 of the fan-shaped processing unit of opening through distributing hole 6 levels; Water flows from the bottom of this Sewage treatment systems 2 from bottom to top; After the matrix treatments in this Sewage treatment systems 2, by the water vent 9 inflow water legs 3 of Sewage treatment systems 2 upper ends, the pipeline that is connected by posticum 8 is again discharged this fan-shaped processing unit.
Table 1 influent quality situation
| Project | Average |
| Water temperature (℃) | |
| PH | |
| 7 | |
| COD(mg/L) | 210 |
| TP(mg/L) | 3.2 |
| TN(mg/L) | 12.25 |
| Ammonia nitrogen (mg/L) | 5 |
After testing startup, by the effluent quality of omnidistance measuring apparatus of time, initial operating stage sampling every day is once taken a sample once weekly after stablizing, and measurement index is COD, NH
3-N, TN and TP.The experiment operation has been investigated 1 year, and last effect is good, stable, problems such as obstruction do not occur, and each pollutant is had the ability of removing efficiently.
As shown in Figure 3, when COD concentration was 210mg/L in the water inlet, along with the artificial wet land system increase of working time, the concentration of COD was remarkable downtrending in the water outlet, reaches relatively stable behind the 20d.At this moment, the COD concentration in the water outlet is about 40mg/L, and clearance is more than 80%.The water outlet effect has reached (GB18918-2002) one-level A standard of country's " urban wastewater treatment firm sewage drainage standard ".
As shown in Figure 4, water inlet TP concentration is 3.2mg/L, and the total phosphorus concentration in the water outlet of artificial wet land system initial operating stage is about 0.02mg/L.Along with the increase of time, the TP concentration in the water outlet slightly changes.TP concentration in 1～20d in the water outlet slightly rises; Behind the system stability, the TP concentration in the water outlet is reduced to again about 0.03mg/L, and clearance is about 98%.(GB18918-2002) one-level A standard of country's " urban wastewater treatment firm sewage drainage standard " is satisfied in water outlet.
As shown in Figure 5, different with the removal rule of total phosphorus, the ammonia-nitrogen content in the artificial wet land system water outlet is dull downtrending.Wetland initial operating stage, the ammonia nitrogen concentration in the water outlet are 4.9mg/L.Along with the increase of time, the concentration of ammonia nitrogen reduces gradually in the water outlet.Reach relatively stable behind the 20d, ammonia nitrogen concentration is about 0.5mg/L in water outlet this moment.The water outlet effect satisfies " urban wastewater treatment firm sewage drainage standard " (the GB 18918-2002) of country one-level A standard.
As shown in Figure 6, the influent concentration of total nitrogen is 12.25mg/L, and along with the artificial wet land system increase of working time, the concentration of water outlet total nitrogen is remarkable downtrending.Total nitrogen concentration is about 2mg/L in the water outlet, and clearance reaches about 80%.The water outlet effect satisfies (GB18918-2002) one-level A standard of country's " urban wastewater treatment firm sewage drainage standard ".
Can know by above-mentioned analysis of experiments; Artificial wet field facilities for treating sewage of the present invention; Good to sewage treatment effect, the water outlet effect during stationary phase has all reached (GB18918-2002) one-level A standard of country's " urban wastewater treatment firm sewage drainage standard ", is applicable to the processing of carrying out sewage.
It below is the concrete instance of the sanitary sewage disposal of the common peasant household of 3-5 people.
Certainly, the each several part size can confirm as required that the plantation plant can be selected according to the plant of common artificial swamp.
Claims (3)
1. an artificial wet field facilities for treating sewage comprises water distribution system (1), Sewage treatment systems (2) and water leg (3), it is characterized in that said water distribution system (1) is a tubular, and Sewage treatment systems (2) and water leg (3) are annular canister; Said water distribution system (1) is positioned at the central authorities of Sewage treatment systems (2), and water distribution system (1) and Sewage treatment systems (2) highly equate and shared base plate (7), all not sealings of water distribution system (1) and Sewage treatment systems (2) upper end;
The upper end of said water distribution system (1) is water-in (4), the some distributing holes of uniform distribution (6) on the sidewall of water distribution system (1) bottom; Distributing hole (6) is communicated with water distribution system (1) and Sewage treatment systems (2);
Said water leg (3) is sleeved on the outside of the upper end of Sewage treatment systems (2); On the outer wall of Sewage treatment systems (2) upper end, be distributed with the water vent (9) of plurality of rows, the height of every row's water vent (9) equates that the lower surface of water leg (3) is lower than row's water vent (9) down, and water vent (9) is communicated with Sewage treatment systems (2) and water leg (3);
Water distribution system (1), Sewage treatment systems (2) and water leg (3) are concentric(al) circles; Wherein, Sewage treatment systems (2), water leg (3) are divided into some fan-shaped processing units by the water-stop sheet of several vertical directions (5), and a water outlet (8) is all arranged at the water leg of each fan-shaped processing unit (3) bottom.
2. artificial wet field facilities for treating sewage as claimed in claim 1 is characterized in that, the aperture of said distributing hole (6) is less than the particle diameter of the matrix of being inserted in this device.
3. artificial wet field facilities for treating sewage as claimed in claim 1 is characterized in that, said water leg (3) evenly is divided into 5 fan-shaped processing units by 5 water-stop sheets (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110312695 CN102417240B (en) | 2011-10-16 | 2011-10-16 | Constructed wetland sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110312695 CN102417240B (en) | 2011-10-16 | 2011-10-16 | Constructed wetland sewage treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN102417240A true CN102417240A (en) | 2012-04-18 |
| CN102417240B CN102417240B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110312695 Expired - Fee Related CN102417240B (en) | 2011-10-16 | 2011-10-16 | Constructed wetland sewage treatment device |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730837A (en) * | 2012-07-03 | 2012-10-17 | 刘树元 | Horizontal gathered flow type constructed wetland |
| CN104150582A (en) * | 2014-08-19 | 2014-11-19 | 中国建筑设计研究院 | Modularized energy-saving spatial formula sewage treatment device and system thereof used for multi-floor buildings |
| CN105417718A (en) * | 2015-12-19 | 2016-03-23 | 西安建筑科技大学 | Cylindrical modular artificial wetland sewage treatment device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4041241A1 (en) * | 1990-12-19 | 1992-07-02 | Schneider Horst | Biological waste water cleansing basin - has guides to impose a vertical component on the horizontal flow path |
| CN1475448A (en) * | 2003-07-31 | 2004-02-18 | 清华大学 | Fortified artificial wetlan sewage disposal method and system |
| CN2661680Y (en) * | 2003-09-04 | 2004-12-08 | 中国科学院沈阳应用生态研究所 | Sewage ecological treatment arrangement for artificial wetland |
| CN1986442A (en) * | 2006-12-26 | 2007-06-27 | 封华强 | Domestic sewage ecologically treating system |
| CN201254484Y (en) * | 2008-03-24 | 2009-06-10 | 广州市碧蓝湖泊研究所有限公司 | Control device artificial wet land system |
-
2011
- 2011-10-16 CN CN 201110312695 patent/CN102417240B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4041241A1 (en) * | 1990-12-19 | 1992-07-02 | Schneider Horst | Biological waste water cleansing basin - has guides to impose a vertical component on the horizontal flow path |
| CN1475448A (en) * | 2003-07-31 | 2004-02-18 | 清华大学 | Fortified artificial wetlan sewage disposal method and system |
| CN2661680Y (en) * | 2003-09-04 | 2004-12-08 | 中国科学院沈阳应用生态研究所 | Sewage ecological treatment arrangement for artificial wetland |
| CN1986442A (en) * | 2006-12-26 | 2007-06-27 | 封华强 | Domestic sewage ecologically treating system |
| CN201254484Y (en) * | 2008-03-24 | 2009-06-10 | 广州市碧蓝湖泊研究所有限公司 | Control device artificial wet land system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730837A (en) * | 2012-07-03 | 2012-10-17 | 刘树元 | Horizontal gathered flow type constructed wetland |
| CN102730837B (en) * | 2012-07-03 | 2013-08-07 | 刘树元 | Horizontal gathered flow type constructed wetland |
| CN104150582A (en) * | 2014-08-19 | 2014-11-19 | 中国建筑设计研究院 | Modularized energy-saving spatial formula sewage treatment device and system thereof used for multi-floor buildings |
| CN105417718A (en) * | 2015-12-19 | 2016-03-23 | 西安建筑科技大学 | Cylindrical modular artificial wetland sewage treatment device |
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| Publication number | Publication date |
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| CN102417240B (en) | 2013-04-24 |
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Granted publication date: 20130424 Termination date: 20131016 |