CN102603069A - Artificial wetland suitable for low C/N sewage treatment - Google Patents
Artificial wetland suitable for low C/N sewage treatment Download PDFInfo
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- CN102603069A CN102603069A CN2012100874302A CN201210087430A CN102603069A CN 102603069 A CN102603069 A CN 102603069A CN 2012100874302 A CN2012100874302 A CN 2012100874302A CN 201210087430 A CN201210087430 A CN 201210087430A CN 102603069 A CN102603069 A CN 102603069A
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- artificial swamp
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- 239000010865 sewage Substances 0.000 title abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000002245 particle Substances 0.000 claims abstract description 12
- 238000012856 packing Methods 0.000 claims description 61
- 230000000630 rising effect Effects 0.000 claims description 11
- 235000013311 vegetables Nutrition 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 239000000945 filler Substances 0.000 abstract description 10
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 230000001502 supplementing effect Effects 0.000 abstract 4
- 238000007599 discharging Methods 0.000 abstract 3
- 230000001706 oxygenating effect Effects 0.000 abstract 1
- 238000003911 water pollution Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 16
- 241000196324 Embryophyta Species 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000011449 brick Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000006213 oxygenation reaction Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 240000001398 Typha domingensis Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 241000746966 Zizania Species 0.000 description 1
- 235000002636 Zizania aquatica Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- -1 aluminum ion Chemical class 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 229940088623 biologically active substance Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Classifications
-
- 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 invention relates to the technical field of the water pollution treatment, in particular to an artificial wetland suitable for low C/N sewage treatment. The artificial wetland suitable for low C/N sewage treatment comprises a bed layer structure, an air duct, a water supplementing system and a water discharging system, wherein the bed layer structure comprises at least three filler layers successively arranged from top to bottom; the particle diameters of the filler layers are successively set from small to big; the air duct is penetrated through the filler layers; the water supplementing system is communicated with the filler layers; the water discharging system is communicated with the filler layer; according to more than three filler layers, the depth and the sectional area of the bed layer structure are enlarged, and the sewage processing capability is improved; the water supplementing system is used for regulating the bed layer of the water discharging system to lower the water lever even drain to form a vacuum bed layer so as to suck air; the bed layer oxygen-requiring requirement is satisfied, and the denitrification effect is greatly improved; the received bed layer air resistance is eliminated when the water supplementing system feeds water after the emptying operation is implemented; and the air duct can be used as an air inlet oxygenating channel when the bed layer is emptied.
Description
Technical field
The present invention relates to water and pollute processing technology field, particularly relate to a kind of artificial swamp that is applicable to low C/N WWT.
Background technology
Artificial swamp is a kind of novel sewage disposal technology that grows up from sewage disposal technology bases such as the seventies in 20th century of processing in the soil, stabilization pond, biological filters; It mainly is to utilize the comprehensive action of wetland plant, mikrobe and soil (or filler) to remove pollutants in sewage; Have simple structure, processing costs is low and has advantages such as landscape effect; Through the development of decades, this technology has obtained using widely gradually at aspects such as handling sewage, surface water, pollution of area source.
Artificial swamp can be considered on the macro manifestations structure by hand-stuff bed base (rubble) and bed table plantation plant two portions to be formed.The countless bed base of hole can provide different microenvironments with countless root systems, is suitable for various (supporting, detest foster, facultative well) microbial growth and Metabolic activity.Mikrobe is the main body of artificial swamp ground soil-removing action.
Ammonia nitrogen is most of in the bed base in the sewage is removed through nitrated-denitrification biological process, and part ammonia nitrogen and nitre nitrogen are removed through plant absorbing.Organonitrogen mainly is suspension, is filtered by bed base and holds back, and be ammonia nitrogen, nitre nitrogen through the biochemical action mineralising, and then remove through plant absorbing and nitrated-denitrification process.Phosphorus great majority in the sewage exist with the orthophosphoric acid salt form, and mainly pass through the fixing deposition of calcium, iron, aluminum ion in the constructed wetland bed base, and the absorption process of plant removal, and the phosphorus that deposition anchors in the base finally can shift out through the replacing of bed base-material.Some micro-metals are absorbed, adsorb and remove by wetland plant through the absorption or the precipitating action of constructed wetland bed base in the sewage.Most of pathogenic bacteria is decomposed by the basic aerobic type biological uptake of the bed of artificial swamp with virus in the sewage, and part is killed by secretions from plant roots.
It is thus clear that the constructed wetland bed base has huge surface-area; Specific chemical constitution, countless root systems and meta-bolites thereof (oxygen, biologically active substance) are for the filtration of pollutent is held back, physics and chemisorption, decomposition and deposition; Biological uptake and oxygenolysis, mineralising etc. provide good condition.The bed base of artificial swamp is good more to sewage treatment effect more greatly, deepens the wetland bed wetland bed interior surface-area that helps to strengthen, for mikrobe provides bigger living space.
But owing to reasons such as moisturizing are uneven, the filler grating is unreasonable, the plant transmitting oxygen is limited, cause artificial swamp obstruction, oxygen supply deficiency to form serious reducing environment, limited the nitrification of mikrobe, exist the low problem of nitric efficiency always.So how to solve strengthening under the dark condition of bed, the oxygen level that increases the bed base becomes key.
Therefore, to the weak point that exists in the prior art, it is very necessary to need the artificial swamp technology that is applicable to low C/N WWT that a kind of good purification is provided badly.
Summary of the invention
The objective of the invention is to avoid weak point of the prior art and the artificial swamp of the low C/N WWT of being applicable to of a kind of good purification is provided.
The object of the invention is realized through following technical measures:
A kind of artificial swamp that is applicable to low C/N WWT is provided; Comprise bed structure, it is characterized in that: also comprise gas tube, water charging system and outlet system, said bed structure comprises at least 3 packing layers that set gradually from top to bottom; The particle diameter of a plurality of said packing layers from top to bottom is ascending to set gradually; Said gas tube is arranged in a plurality of said packing layers, and said water charging system is communicated with said packing layer, and said outlet system is communicated with said packing layer.
Wherein, said packing layer be low calorific value coal spoil, Wingdale, zeolite, porous charcoal wherein one or more.
Wherein, the total thickness of a plurality of said packing layers is 1.5m.
Wherein, the thickness of a plurality of said packing layers is identical.
Wherein, also be provided with vegetable layer above the said packing layer.
Wherein, said bed structure is the bed structure of thickness 1.5m.
Wherein, said bed structure comprises 5 packing layers that set gradually from top to bottom, and the particle diameter of 5 described packing layers is respectively 5～10mm, 10～25mm, 25～50mm, 50～100mm, 100～150mm from top to bottom, and the thickness of each packing layer is 0.3m.
Wherein, the tube wall surface of said gas tube is provided with ventilating pit.
Wherein, said water charging system comprises the distributing flue and the water inlet person in charge, and water inlet is responsible for an end and is communicated with distributing flue, and the other end is communicated with packing layer.
Wherein, said outlet system comprises rising pipe and goes out water channel, and the feed-water end of said rising pipe is arranged in the said packing layer, the exit end of said rising pipe with go out water channel and be communicated with.
Beneficial effect of the present invention:
A kind of artificial swamp that is applicable to low C/N WWT; Comprise bed structure, gas tube, water charging system and outlet system; Said bed structure comprises at least 3 packing layers that set gradually from top to bottom, and the particle diameter of a plurality of said packing layers from top to bottom is ascending to set gradually, and said gas tube is arranged in a plurality of said packing layers; Said water charging system is communicated with said packing layer, and said outlet system is communicated with said packing layer.
Packing layer more than 3 has strengthened the degree of depth of bed structure, the configuration of the filler of different-grain diameter; Strengthened the sectional area that bed structure is disposed of sewage,, improved sewage treatment capacity for mikrobe provides bigger living space; Water charging system is used for to regulating and control bed decline water level even put dried through outlet system; Form bed " vacuum ", thereby suck air, satisfy the aerobic requirement of bed; Created nitrated, that anti-nitration reaction is required is aerobic, detest the envrionment conditions of supporting alternate; Improve denitrification effect greatly, the bed vapour lock that receives when gas tube eliminate to be implemented water charging system water inlet after " emptying " operation, and the air inlet oxygenation passage when can be used as bed emptying uses.
Description of drawings
Utilize accompanying drawing that the present invention is described further, but the embodiment in the accompanying drawing does not constitute any restriction of the present invention.
Fig. 1 is a kind of structural representation that is applicable to the artificial swamp of low C/N WWT of the present invention.
In Fig. 1, include:
1---water inlet is responsible for, and 2---vegetable layer, 3---gas tube, 4---abutment wall, 5---packing layer, 6---rising pipe.
Embodiment
Below in conjunction with embodiment the present invention is elaborated.
A kind of artificial swamp that is applicable to low C/N WWT; As shown in Figure 1, comprise bed structure, gas tube 3, water charging system and outlet system, said bed structure comprises 3 packing layers 5 that set gradually from top to bottom; The particle diameter of 3 said packing layers 5 is ascending to set gradually; Said gas tube 3 is arranged in 3 said packing layers 5, and said water charging system is communicated with said packing layer 5, and said outlet system is communicated with said packing layer 5.
3 packing layer 5 has strengthened the degree of depth of bed structure, the configuration of the filler of different-grain diameter; Strengthened the sectional area that bed structure is disposed of sewage,, improved sewage treatment capacity for mikrobe provides bigger living space; Water charging system is used for to regulating and control bed decline water level even put dried through outlet system; Form bed " vacuum ", thereby suck air, satisfy the aerobic requirement of bed; Created nitrated, that anti-nitration reaction is required is aerobic, detest the envrionment conditions of supporting alternate; Improve denitrification effect greatly, gas tube 3 is eliminated the bed vapour lock that receives when implementing water charging system water inlet after " emptying " operations, and the air inlet oxygenation passage when can be used as bed emptying uses.
Further, the particle diameter of 3 described packing layers 5 is respectively 5～10mm, 25～50mm, 100～150mm from top to bottom.The packing layer 5 that adopts this kind particle diameter to arrange, particle diameter is even, good purification.
Further, packing layer 5 is low calorific value coal spoil layer and/or Wingdale layer, and said packing layer 5 can also be zeolite layer or porous charcoal layer.
Further, the total thickness of a plurality of said packing layers 5 is 1.5m, and total thickness is the bed structure that the bed structure of 1.5m is compared 0.5m～0.8m of the prior art, has increased producing depth and surface-area greatly, has improved decontamination effect improving.
Further, packing layer 5 is the packing layer 5 of thickness 0.5m.
Further, the thickness of a plurality of packing layers 5 is identical.A plurality of packing layers 5 that thickness is identical can make the osmotic effect of whole water body good.
Further, the tube wall surface of said gas tube 3 is provided with ventilating pit, and ventilating pit has played the effect that exchanges gas, has strengthened the effect of gas tube 3 elimination vapour locks.
Further, the layout density of gas tube 3 is 25m
2One, the gas tube 3 that adopts this kind density to be provided with, the air guide effect is best.
Further, packing layer 5 tops also are provided with vegetable layer 2.Vegetable layer 2 can effectively absorb the objectionable impurities in the water body.
Further, be provided with abutment wall 4 around the bed structure.It is loose that abutment wall 4 can effectively protect bed structure to be difficult for, and plays the effect of reinforcing, antiscour.
Further, said water charging system comprises the distributing flue and the water inlet person in charge 1, and water inlet is responsible for 1 one ends and is communicated with distributing flue, and the other end is communicated with packing layer 5.Water inlet is responsible for 1 and is arranged on the abutment wall 4 with distributing flue, installs and uses facility, and said outlet system comprises rising pipe 6 and go out water channel, and the feed-water end of said rising pipe 6 is arranged in the said packing layer 5, the exit end of said rising pipe 6 with go out water channel and be communicated with.
The water body in bed structure that water charging system and outlet system can be realized is changed, and has improved the purification efficiency of bed structure.And the water inlet person in charge 1 is arranged at packing layer 5 tops, rising pipe 6 is arranged at packing layer 5 belows, and current flow into bed structure from the top, and rising pipe 6 outflows from the below have realized automatic replacing water body, the work-ing life of having improved bed structure.
The dark 1.2m of distributing flue canal, brick mix structure always is about 1900m; Bed structure degree of depth 1.5m is divided into five layers, and every layer thickness is the different-grain diameter rubble of 0.3m; The gas tube 3 of vertical embedding DN32 in the bed structure, pipe range 1.7m, layout density 25m
2One; Bed structure is divided into seven centres and separates with partition wall, the high 1.8m of partition wall, and wide 0.24m always is about 1200m, constructs abutment wall 4 all around, and abutment wall 4 high 4～5m are cemented rock and brick mix structure, length overall 4100; It is main that vegetable layer 2 adopts reed, cattail, wild rice stem and wilson iris; Go out water channel and be of a size of 430m*3m*4m, brick stone+brick mixes, and adopts completely to grout and builds.
Following table is for adopting the test-results of present embodiment:
| Water quality | pH | COD cr | BOD 5 | NH 3-N | TN | TP | DO |
| Water inlet | 7.57 | 31.96 | 9.10 | 31.82 | 35.00 | 0.54 | 3.02 |
| Water outlet | 7.56 | 16.58 | 4.68 | 8.90 | 10.40 | 0.11 | 5.18 |
| Processing rate | --- | 48.11％ | 48.56％ | 72.03％ | 70.28％ | 80.52％ | --- |
Should be noted that at last; Above embodiment is only in order to technical scheme of the present invention to be described but not to the restriction of protection domain of the present invention; Although the present invention has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the essence and the scope of technical scheme of the present invention.
Claims (10)
1. one kind is applicable to the artificial swamp that hangs down the C/N WWT; Comprise bed structure, it is characterized in that: also comprise gas tube, water charging system and outlet system, said bed structure comprises at least 3 packing layers that set gradually from top to bottom; The particle diameter of a plurality of said packing layers is ascending to set gradually; Said gas tube is arranged in a plurality of said packing layers, and said water charging system is communicated with said packing layer, and said outlet system is communicated with said packing layer.
2. a kind of artificial swamp that is applicable to low C/N WWT according to claim 1 is characterized in that: said packing layer be low calorific value coal spoil, Wingdale, zeolite, porous charcoal wherein one or more.
3. a kind of artificial swamp that is applicable to low C/N WWT according to claim 2, it is characterized in that: said packing layer is the packing layer of thickness 0.3m ~ 0.5m.
4. a kind of artificial swamp that is applicable to low C/N WWT according to claim 1, it is characterized in that: the thickness of a plurality of said packing layers is identical.
5. a kind of artificial swamp that is applicable to low C/N WWT according to claim 4 is characterized in that: said packing layer top also is provided with vegetable layer.
6. a kind of artificial swamp that is applicable to low C/N WWT according to claim 1, it is characterized in that: the total thickness of a plurality of said packing layers is 1.5m.
7. a kind of artificial swamp that is applicable to low C/N WWT according to claim 1; It is characterized in that: said bed structure comprises 5 packing layers that set gradually from top to bottom; The particle diameter of 5 described packing layers is respectively 5 ~ 10mm, 10 ~ 25mm, 25 ~ 50mm, 50 ~ 100mm, 100 ~ 150mm from top to bottom, and the thickness of each packing layer is 0.3m.
8. according to any described a kind of artificial swamp that is applicable to low C/N WWT of claim 1 to 7, it is characterized in that: the tube wall surface of said gas tube is provided with ventilating pit.
9. a kind of artificial swamp that is applicable to low C/N WWT according to claim 1 is characterized in that: said water charging system comprises the distributing flue and the water inlet person in charge, and water inlet is responsible for an end and is communicated with distributing flue, and the other end is communicated with packing layer.
10. a kind of artificial swamp that is applicable to low C/N WWT according to claim 9; It is characterized in that: said outlet system comprises rising pipe and goes out water channel; The feed-water end of said rising pipe is arranged in the said packing layer, the exit end of said rising pipe with go out water channel and be communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100874302A CN102603069B (en) | 2012-03-28 | 2012-03-28 | Artificial wetland suitable for low C/N sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100874302A CN102603069B (en) | 2012-03-28 | 2012-03-28 | Artificial wetland suitable for low C/N sewage treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102603069A true CN102603069A (en) | 2012-07-25 |
| CN102603069B CN102603069B (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100874302A Active CN102603069B (en) | 2012-03-28 | 2012-03-28 | Artificial wetland suitable for low C/N sewage treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103324851A (en) * | 2013-06-24 | 2013-09-25 | 云南省农业科学院农业环境资源研究所 | Method for controlling farmland soil nitrogen non-point source pollution with carbon |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5951866A (en) * | 1996-07-31 | 1999-09-14 | Grove; John E. | Cold climate wetland waste water treatment system |
| CN101708897A (en) * | 2009-11-26 | 2010-05-19 | 同济大学 | Water treatment technology of inclined plane undercurrent artificial wetland |
| CN201737801U (en) * | 2009-12-29 | 2011-02-09 | 苏州德华生态环境科技有限公司 | Enhanced vertical flow filtering bed |
| CN102010066A (en) * | 2010-11-12 | 2011-04-13 | 张四海 | Method for purifying sewage in vertical-flow artificial wetland |
| CN102190376A (en) * | 2011-05-05 | 2011-09-21 | 西安理工大学 | Integrated flow constructed wetland treatment system |
| CN202558699U (en) * | 2012-03-28 | 2012-11-28 | 武汉中科水生环境工程有限公司 | Constructed wetland suitable for low carbon/nitrogen (C/N) sewage treatment |
-
2012
- 2012-03-28 CN CN2012100874302A patent/CN102603069B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5951866A (en) * | 1996-07-31 | 1999-09-14 | Grove; John E. | Cold climate wetland waste water treatment system |
| CN101708897A (en) * | 2009-11-26 | 2010-05-19 | 同济大学 | Water treatment technology of inclined plane undercurrent artificial wetland |
| CN201737801U (en) * | 2009-12-29 | 2011-02-09 | 苏州德华生态环境科技有限公司 | Enhanced vertical flow filtering bed |
| CN102010066A (en) * | 2010-11-12 | 2011-04-13 | 张四海 | Method for purifying sewage in vertical-flow artificial wetland |
| CN102190376A (en) * | 2011-05-05 | 2011-09-21 | 西安理工大学 | Integrated flow constructed wetland treatment system |
| CN202558699U (en) * | 2012-03-28 | 2012-11-28 | 武汉中科水生环境工程有限公司 | Constructed wetland suitable for low carbon/nitrogen (C/N) sewage treatment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103324851A (en) * | 2013-06-24 | 2013-09-25 | 云南省农业科学院农业环境资源研究所 | Method for controlling farmland soil nitrogen non-point source pollution with carbon |
| CN103324851B (en) * | 2013-06-24 | 2015-12-02 | 云南省农业科学院农业环境资源研究所 | A kind of carbon element controls the method for nitrogen in farmland soil pollution of area source |
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| CN102603069B (en) | 2013-09-04 |
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