CN203474534U - Water denitrification reinforced restoration device for constructed wetlands - Google Patents
Water denitrification reinforced restoration device for constructed wetlands Download PDFInfo
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- CN203474534U CN203474534U CN201320227687.3U CN201320227687U CN203474534U CN 203474534 U CN203474534 U CN 203474534U CN 201320227687 U CN201320227687 U CN 201320227687U CN 203474534 U CN203474534 U CN 203474534U
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- water
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- denitrogenation
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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 relates to a water denitrification reinforced restoration device for constructed wetlands. The water denitrification reinforced restoration device comprises a body, an emergent aquatic plant, a water inlet pump and a water inlet tank, wherein sand soil is filled in the bottom of the device body, and furnace slag covers the surface of the sand soil; the emergent aquatic plant is planted in the sand soil; a water inlet of the water inlet pump is connected with the water inlet tank, and a water outlet of the water inlet pump is connected into the device body; the side wall of the device body is provided with a water discharging port with a water outlet valve. The water denitrification reinforced restoration device has the beneficial effects that (1) the coupling of anaerobic ammonium oxidation and half-short-course nitrification can be realized, so that the water denitrification reinforced restoration capacity is strong; (2) the pH value in the system can be adjusted without the chemical reagent, so that the running cost can be reduced; (3) an micro-oxygen environment is provided through the emergent aquatic plant, so that the activity of the anaerobic ammonium oxidation bacteria is not inhibited while the oxygen requirement of the ammonium oxidation can be met; (4) the growth of the emergent aquatic plant absorbs the nitrogen and phosphorus pollutant, so that the phosphorus can be eliminated while the nitrogen pollutant is removed, and good aesthetics and ecological values can be realized.
Description
Technical field
The utility model relates to a kind of artificial wetland water body denitrogenation strengthening prosthetic device.
Background technology
Along with the aggravation of mankind's activity, global nitrogen cycle is unbalance to be on the rise.Industrial production is discharged a large amount of ammonia nitrogen waste waters in natural water, causes body eutrophication phenomenon to happen occasionally in the water bodys such as rivers and lakes, has had a strong impact on water ecology safety and population health.Therefore, be necessary to carry out research and development and the application of water body denitrification recovery technique.
Artificial swamp is by artificial construction and supervision and control, and it can utilize physics, chemistry and biological synergy in natural ecosystems to realize dirty water purification.In artificial wet land system, microorganism is main biotic population and the undertaker of absorption and degradation of contaminant.Generally, what play a major role aspect the removal of nitrogen, be ammonia oxidation bacteria, NOB and denitrifying bacteria, wherein the nitrification and denitrification effect of plant rhizosphere microbe is the Main Function of artificial swamp denitrogenation.Yet, denitrification need organic carbon source, nitrification need to consume a large amount of dissolved oxygens, thereby has limited the performance of artificial swamp potentiality aspect water body denitrification reparation.Meanwhile, in artificial swamp because denitrification also can produce N
2o greenhouse gases, are also unfavorable for the popularization of artificial swamp denitrogenation water body recovery technique.
Anammox is a kind of Process of Biological Nitrogen Removal, can under anaerobic take ammonia as electron donor is reduced to nitrogen by nitrite, when realizing two kinds of nitrogen pollutants, removes.Than traditional biological denitrification process, it is good that Anammox has denitrification effect, without the advantage of oxygen and additional organic carbon source, has good application prospect.Yet general ammonia-containing water nitrite is lower, the source of nitrite becomes the bottleneck of restriction Anammox advantage performance thus.Half short distance nitration can change into nitrite by the ammonia of 50%-57%, can meet the demand of anaerobic ammonia oxidizing bacteria to matrix.Yet half short distance nitration and Anammox process integration regulation and control parameter are complicated, and half short distance nitration technique is difficult for steady in a long-term control.
For these problems, the utility model proposes a kind of artificial wetland water body denitrogenation strengthening prosthetic device, Anammox and half short distance nitration Fourier Series expansion technique are introduced to artificial swamp, the micro-oxygen ambient stable providing by emergent rhizosphere moves half short distance nitration, part ammonia is changed into nitrite and supply with the required matrix of Anammox bacteria growing, realize removing of Water element, make up the defect of Traditional Man wetland simultaneously, advantage is separately brought into play to greatest extent, thereby reached the effect that strengthening water body denitrification is repaired.
Summary of the invention
The utility model proposes the artificial wetland water body denitrogenation strengthening prosthetic device that a kind of denitrification effect is good, running cost is low.
Artificial wetland water body denitrogenation strengthening prosthetic device described in the utility model, comprise device body, emergent, intake pump, inlet chest, the sandy soil that contains anaerobic ammonia oxidizing bacteria and ammonia oxidation bacteria is filled in the bottom of described device body, and at described sandy soil surface coverage slag; Described emergent plantation is in described sandy soil, by emergent rhizosphere micro-oxygen environment construction Anammox and half short distance nitration Fourier Series expansion technique; The water-in of described intake pump is connected with described inlet chest, and the water outlet of described intake pump passes in described device body; The sidewall of described device body is provided with the water port of outlet valve.
Further, the rectangle form pool that described device body is uncovered, in inlet chest, water body is intermittently added in device body by intake pump.
Further, the thickness of described sandy soil is the 1/3-1/2 of described device body height.
Further, described slag addition can be adjusted according to practical operation situation, makes the interior water body pH of device body in 7.5-7.8.
Further, described emergent is selected according to geographical environment, preferably the reed of well developed root system, cattail or cattail and reed.
Further, in described inlet chest, water body ammonia nitrogen concentration increases from low to high gradually, and flora in sandy soil is tamed, and makes anaerobic ammonia oxidizing bacteria and ammonia oxidation bacteria become gradually dominant microflora, and in described inlet chest, water body ammonia nitrogen concentration is 14-98mg/L.
Further, in described device body, hydraulic detention time is 7-13d, and described water port is at the above 5-10cm of sandy soil layer place.
The beneficial effects of the utility model are: 1. this device can be realized the coupling of Anammox and half short distance nitration, make artificial swamp can realize preferably water body denitrification strengthening repairing effect; 2. this device is interior without adding pH in chemical reagent regulation system, has reduced running cost; 3. emergent root system provides micro-oxygen environment, can meet the demand of ammonia oxidation bacteria to oxygen, does not suppress the activity of anaerobic ammonia oxidizing bacteria simultaneously; 4. emergent growth absorbed nitrogen and phosphor contaminant, can also dephosphorization when removing nitrogen pollutant, has good aesthetics and the ecological value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model (direction of arrow represents water body flow direction);
Fig. 2 is cross sectional representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, further illustrate the utility model
With reference to accompanying drawing:
Artificial wetland water body denitrogenation strengthening prosthetic device described in the utility model, comprise device body 1, emergent 2, intake pump 3, inlet chest 4, the sandy soil 11 that contains anaerobic ammonia oxidizing bacteria and ammonia oxidation bacteria is filled in the bottom of described device body 1, and at described sandy soil 11 surface coverage slags 12; Described emergent 2 plantations are in described sandy soil 11, by emergent 2 rhizosphere micro-oxygen environment construction Anammoxs and half short distance nitration Fourier Series expansion technique; The water-in of described intake pump 3 is connected with described inlet chest 4, and the water outlet of described intake pump 3 passes in described device body 1; The sidewall of described device body 1 is provided with the water port 13 of outlet valve.
Further, the rectangle form pool that described device body 1 is uncovered, the interior water body of inlet chest 4 is intermittently added in device body 1 by intake pump 3.
Further, the thickness of described sandy soil 11 is the 1/3-1/2 of described device body 1 height.
Further, described slag 12 additions can be adjusted according to practical operation situation, make the interior water body pH of device body 1 in 7.5-7.8.
Further, described emergent 2 is selected according to geographical environment, preferably reed, cattail or the cattail and reed of well developed root system.
Further, the interior water body ammonia nitrogen concentration of described inlet chest 4 increases from low to high gradually, the interior flora of sandy soil 11 is tamed, make anaerobic ammonia oxidizing bacteria and ammonia oxidation bacteria become gradually dominant microflora, the interior water body ammonia nitrogen concentration of described inlet chest 4 is 14-98mg/L.
Further, the described interior hydraulic detention time of device body 1 is 7-13d, and described water port 13 is at the above 5-10cm of sandy soil layer place.
Content described in this specification sheets embodiment is only enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the specific form that embodiment states, protection domain of the present utility model is also and in those skilled in the art's equivalent technologies means that design can be expected according to the utility model.
Claims (7)
1. artificial wetland water body denitrogenation strengthening prosthetic device, is characterized in that: comprise device body, emergent, intake pump, inlet chest, sandy soil is filled in the bottom of described device body, and at described sandy soil surface coverage slag; Described emergent plantation is in described sandy soil, by emergent rhizosphere micro-oxygen environment construction Anammox and half short distance nitration Fourier Series expansion technique; The water-in of described intake pump is connected with described inlet chest, and the water outlet of described intake pump passes in described device body; The sidewall of described device body is provided with the water port of outlet valve.
2. artificial wetland water body denitrogenation strengthening prosthetic device as claimed in claim 1, is characterized in that: the rectangle form pool that described device body is uncovered, in inlet chest, water body is intermittently added in device body by intake pump.
3. artificial wetland water body denitrogenation as claimed in claim 1 strengthening prosthetic device, is characterized in that: the thickness of described sandy soil is the 1/3-1/2 of described device body height.
4. artificial wetland water body denitrogenation strengthening prosthetic device as claimed in claim 1, is characterized in that: described slag addition can be adjusted according to practical operation situation, makes the interior water body pH of device body in 7.5-7.8.
5. artificial wetland water body denitrogenation strengthening prosthetic device as claimed in claim 1, is characterized in that: reed, cattail or the cattail and reed of the described preferred well developed root system of emergent.
6. prosthetic device is strengthened in artificial wetland water body denitrogenation as claimed in claim 1, it is characterized in that: in described inlet chest, water body ammonia nitrogen concentration increases from low to high gradually, flora in sandy soil is tamed, make anaerobic ammonia oxidizing bacteria and ammonia oxidation bacteria become gradually dominant microflora, in described inlet chest, water body ammonia nitrogen concentration is 14-98mg/L.
7. artificial wetland water body denitrogenation strengthening prosthetic device as claimed in claim 1, is characterized in that: in described device body, hydraulic detention time is 7-13d, and described water port is at the above 5-10cm of sandy soil layer place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320227687.3U CN203474534U (en) | 2013-04-27 | 2013-04-27 | Water denitrification reinforced restoration device for constructed wetlands |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320227687.3U CN203474534U (en) | 2013-04-27 | 2013-04-27 | Water denitrification reinforced restoration device for constructed wetlands |
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| CN203474534U true CN203474534U (en) | 2014-03-12 |
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| CN201320227687.3U Expired - Fee Related CN203474534U (en) | 2013-04-27 | 2013-04-27 | Water denitrification reinforced restoration device for constructed wetlands |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236687A (en) * | 2015-11-02 | 2016-01-13 | 重庆大学 | Sewage treatment device and method for self-cleaning type micro-aeration vertical baffled wetland |
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2013
- 2013-04-27 CN CN201320227687.3U patent/CN203474534U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236687A (en) * | 2015-11-02 | 2016-01-13 | 重庆大学 | Sewage treatment device and method for self-cleaning type micro-aeration vertical baffled wetland |
| CN105236687B (en) * | 2015-11-02 | 2017-10-10 | 重庆大学 | The micro- vertical baffling wetland sewage-treatment plant of aeration of self-cleaning type and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20160427 |