CN103739081B - A kind of current wetland device for low-pollution water strengthened denitrification - Google Patents
A kind of current wetland device for low-pollution water strengthened denitrification Download PDFInfo
- Publication number
- CN103739081B CN103739081B CN201410014129.8A CN201410014129A CN103739081B CN 103739081 B CN103739081 B CN 103739081B CN 201410014129 A CN201410014129 A CN 201410014129A CN 103739081 B CN103739081 B CN 103739081B
- Authority
- CN
- China
- Prior art keywords
- water
- section
- denitrification
- wetland
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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 present invention relates to a kind of strengthened denitrification drowned flow artificial wet land device of field of environment engineering technology, comprise: pre-treatment settling tank, drop water aeration well and wetland groove, wetland groove is divided into again aerobic nitrification section, inspection chamber, anoxic denitrification section and pump well by water (flow) direction.Pre-treatment precipitation pool precipitation suspended substance, prevents follow-up structures from blocking; Drop step is set in drop water aeration well to improve dissolved oxygen concentration; Aerobic nitrification section fills the active matrix of adsorbable ammonia nitrogen, and improves dissolved oxygen concentration in packing layer by vertically inserting boring aeration pipe and planting vascular plant, thus ensures the smooth generation of nitrification; In inspection chamber, access secondary water inlet pipe, supplements carbon source needed for denitrification; Anoxic denitrification section fills efficient dephosphorization matrix, denitrification occurs and Adsorption phosphor contaminant; Pump well collection and treatment water is final discharger also.Compared with prior art, the present invention has better treatment effect for the nitrogen in sewage, total nitrogen, and ammonia nitrogen removal frank all can reach more than 80%.
Description
Technical field
The present invention relates to a kind of device of field of environment engineering technology, specifically a kind of drowned flow artificial wet land device with strengthened denitrification function.Can be used for the strengthened denitrification of the low-pollution water such as tail water produced by municipal sewage treatment plant, return water of farmland irrigation.
Background technology
Low-pollution water, comprises tail water produced by municipal sewage treatment plant, return water of farmland irrigation etc.Because its water quality is between Sewage Plant pollution exhaust criteria to surface water V class water quality standard, once drain into receiving water body, the organism of water body, nutritive salt load can be increased considerably, therefore be regarded as one of main external source causing body eutrophication at present.
Current, for the process of low-pollution water, countries in the world all adopt ecological engineering, comprise artificial swamp, ecological gravel bed etc.Project practices at home and abroad shows, existing ecological engineering technology has good treatment effect to the organic pollutant (BOD) in low-pollution water and suspended substance (SS), but unsatisfactory for the removal effect of nitrogen pollutant.The landscape water purification artificial swamp that the ground such as China Chengdu, Shanghai build shows, low-pollution water is after Constructed Wetland For Purifying, and nitrogen removal rate is that ammonia-nitrogen content is even greater than into water generally lower than 60%, and cause stench, what had a strong impact on landscape water body views and admires function.
Research shows, artificial swamp is removed the nitrogen in low-pollution water, the main nitrification and denitrification effect relying on microorganism.The low-pollution water basic reason that denitrification effect is not good in artificial swamp is that these two kinds of effects receive suppression.In concrete reason comprises (1) artificial swamp, dissolved oxygen content is very low, inhibits the nitrification of ammonia nitrogen, causes water outlet ammonia nitrogen on the contrary higher than water inlet; (2) in low-pollution water, carbon source concentration is lower, and major part is degraded when nitration reaction, and the carbon source of the growth of constructed wetland plant and decay process release is also little, and these reasons cause denitrification carbon source not enough.Solving the problem, is the key problem in technology of strengthened artificial wet land denitrification functions.
Prior art is retrieved, Chinese patent notification number CN102642927A discloses a kind of oxygen supply type constructed wetland device automatically, by filling a part of hollow brick in artificial swamp matrix, and take into water 6d, fall the intermittent operation mode of dry 1d, make the raising by a relatively large margin of the inner dissolved oxygen content of drowned flow artificial wet land, and then facilitate the nitrification of organic degraded and ammonia nitrogen.But, fill hollow brick and decrease wetland mesostroma content, decrease the inner effectively purge volume of wetland; In addition, the intermittent operation of device in some cases (as purified in situ river) can not realize.These shortcomings limit using of this technology and promote.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of current wetland device for low-pollution water strengthened denitrification is provided.
Object of the present invention can be achieved through the following technical solutions: a kind of current wetland device for low-pollution water strengthened denitrification, it is characterized in that, comprise: pre-treatment settling tank, drop oxygenation well and wetland groove, wetland groove is divided into again aerobic nitrification section, inspection chamber, anoxic denitrification section and pump well by water (flow) direction, is provided with secondary inlet channel in inspection chamber; Former water precipitates overflow after the precipitation of the pool through pre-treatment and falls and enters drop oxygenation well, and the current after oxygenation enter wetland groove, complete nitrification in aerobic nitrification section; After inspection chamber and the secondary flowed out from secondary inlet channel are intake and mixed, enter anoxic denitrification section and complete denitrification, finally enter pump well, discharger.
The described pre-treatment precipitation pool is rectangle or square, and long-width ratio is 3:1 to 1:1; Be mainly used in the suspended particulate in sedimentation water body, prevent it from blocking follow-up current wetland groove.The pre-treatment precipitation pool is intake by inlet channel, and the water outlet (supernatant liquor) after precipitation is then fallen by horizontal weir and entered drop oxygenation well.Described drop oxygenation well is rectangle, and precipitate the pool with pre-treatment and build jointly, thus width is identical with it, along the long 100-200cm of water (flow) direction; Described wetland groove is rectangle, and long-width ratio is 10:1 to 3:1, and its degree of depth is 50-80cm.
The bottom of described pre-treatment settling tank, drop oxygenation well and wetland groove is to roll clay or trinity mixture fill carries out Anti-seeping technology, and pond body with free stone masonry, and does wall anti-seepage process with sand-cement slurry.
The upstream sidewall on the described pre-treatment precipitation pool is provided with water inlet pipe, and downstream sidewall end face is provided with horizontal weir, and in the pre-treatment precipitation pool, input pending water by water inlet pipe, the supernatant liquor after precipitation is by the overflow water outlet of horizontal weir.
The upstream sidewall of described drop oxygenation well and pre-treatment precipitate the pool and share, and this top side wall is provided with horizontal weir, and this horizontal weir connects 3 ~ 5 grades of drop steps, every grade of step height 10-20cm; The described pre-treatment precipitation pool and the water surface discrepancy in elevation of drop oxygenation well are 30-50cm.Keep concordant with the wetland groove water surface in drop oxygenation well, the depth of water is identical with wetland groove.After the pool water outlet of pre-treatment precipitation is overflowed, increased the content of oxygen in water by this natural oxygen enrichment mode consumed without the need to any power source that drops.
The aerobic nitrification section of described wetland groove and the interior all filling thickness of the groove of anoxic denitrification section are the active matrix filler of 40-70cm, are the pedosphere of 10cm at packing layer top cladding thickness.
With net separately, the material of net, for having some strength and corrosion-resistant material, comprises nylon wire, and aperture is 0.2-0.8cm for described packing layer and pedosphere; Nylon wire on the one hand can stop soil particle to enter into active matrix to cause Wetland clogging, the root system of plant can also be allowed to penetrate hypothallus on the other hand.
The active matrix filler of filling in described aerobic nitrification section is ammonia nitrogen absorption material, comprises natural zeolite, vermiculite; The active matrix filler of filling in described anoxic denitrification section is phosphorus sorbing material, comprises calcite, manganese sand or activated alumina.Organism (comprising organonitrogen) in sewage in this section by aerobic decomposition, decompose the ammonia nitrogen in the ammonia nitrogen and former water produced, first adsorb by ammonia nitrogen absorption material (as zeolite etc.), form the area with high mercury of ammonia nitrogen, be then translated into nitric nitrogen by the nitrification of microorganism.The nitrification of microorganism is generally consuming time comparatively of a specified duration, needs longer hydraulic detention time, and sorbing material then by ammonia nitrogen " delay " in aerobic nitrification section, can effectively shorten the floor space of the residence time and process structures.
In described wetland groove, the length of aerobic nitrification section is 15 ~ 40:60 ~ 85 with the length ratio of anoxic denitrification section.
Vertically be inserted with boring aeration pipe in the aerobic nitrification section of described wetland groove, density is 4-8 root/m
2; It is strong and have the vascular plant of oxygenation that ability is taken root in pedosphere plantation, and density is 1-3 strain/m
2.Make the oxygen in air enter soil and packing layer inside, supplement the oxygen because organic matter degradation and ammonification consume, guarantee carrying out smoothly of nitration reaction.In addition, aerobic nitrification section kind is implanted with vascular plant, as (planting density 1-4 strain/m such as reeds
2).On the one hand, vascular plant takes root ability by force, can go deep into and be covered with in hypothallus, on the other hand, vascular plant by vascular bundle by oxygen delivery to plant root, just as one " oxygen charging pump ", for hypothallus supplemental oxygen, further ensure that the aerobic environment of hypothallus.Above two kinds of strengthening oxygenation modes, are the principle meeting ecological engineering, without any power and energy consumption.
In described wetland groove, aerobic nitrification section enters inspection chamber by the overflow of horizontal weir; Described inspection chamber side access secondary inlet channel, for be about in supplementary anoxic denitrification section the denitrification carried out carbon source.Secondary flooding quantity specifically need be determined according to the nitrification of raw water quality and aerobic nitration section and organic matter degradation situation, is generally 0.1 to 1 times of device top flooding quantity, can according to water yield cheek secondary water inlet pipe caliber after determining secondary flooding quantity; Described anoxic denitrification section water outlet enters pump well by the overflow of horizontal weir; Described pump well is by pipeline decanter the most at last.
Described anoxic denitrification section surface plantation does not have the plant of oxygenation (as turf etc.) and does not establish any enhanced aeration facility, and therefore except near the root circle microenvironment of plant, entirety is in anoxic condition.The carbon source that anoxia condition and secondary water inlet supplement, ensure that the effect of this section of denitrification.
The present invention is directed to that the nitrification dissolved oxygen that existing artificial swamp (comprising matrix strengthened artificial wet land) exists is not enough, the problem of denitrification carbon source deficiency, according to the degradation process of nitrogen, drowned flow artificial wet land is divided into two clean-up stage, the strengthening dissolved oxygen of configuration needed for each clean-up stage and carbon source condition, thus on the basis of removal effect taking into account organism, suspended substance and phosphorus, increase substantially the removal capacity of nitrogen pollutant in sewage.
The concrete measure of the present invention comprises: current wetland is divided into aerobic nitrification section and anoxic denitrification section by (1); (2) hydromechanics oxygenation, the oxygenation of strengthening air, plant oxygenation etc. are adopted to improve dissolved oxygen amount, the dissolved oxygen conditions of configuration needed for nitration reaction without the need to the means of power source at aerobic nitrification conversion zone; (3) secondary water inlet was set before anoxic denitrification section, utilizes the organic substance in former water to supplement carbon source needed for denitrification; (4) fill the active matrix with ammonia nitrogen absorption function in aerobic nitrification section, promote nitrification; Fill the active matrix with phosphorus absorption property in anoxic denitrification section, under the background of whole device strengthened denitrification, ensure effective removal of phosphorus.
Compared with prior art, drowned flow artificial wet land, first according to the degradation process of nitrogen pollutant, is reasonably divided into aerobic nitrification section and anoxic denitrification section by the present invention.Nitrated, these two nutrition of denitrification, dissolved oxygen require the differentiation of totally different nitrogen degradation process, for the condition strengthened respectively needed for each autoreaction provides prerequisite.On this basis, by the ecological engineering means of the multiple non-power consumptions such as waterpower oxygenation (drop water aeration), strengthening air oxygenation (inserting boring aeration pipe), plant oxygenation (plantation vascular plant), ensure the dissolved oxygen levels that aerobic nitrification section is higher; Be ensure that the abundance of denitrification carbon source in anoxic denitrification section by secondary water inlet, and then ensure carrying out smoothly of nitration denitrification effect.In addition, the filling of aerobic nitrification section active matrix shortens the residence time of nitration section, and the filling of phosphorus sorbing material in anoxic denitrification section, achieve the removal of wetland for Phosphorus pollutent.Generally speaking, the present invention, on the basis ensureing the pollutant removals such as suspended substance, organism, phosphorus, solves nitric efficiency when improve common artificial wetland treatment low-pollution water effectively, prevents the problem that ammonia nitrogen in water outlet exceeds standard, stink is pungent.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below embodiments of the invention are elaborated.The present embodiment is implemented premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
The present embodiment is positioned at Dali Bai Autonomous prefecture, Yunnan shangguan town, and process water inlet is the tail water of certain village sewage refining plant, and the total Water of introducing device is 55m
3/ d (containing secondary water inlet), water quality is defined as bad V class water according to " water environment quality standard " (GB3838-2002), and main contamination index is total nitrogen 10mg/L, ammonia nitrogen 4mg/L, total phosphorus 0.8mg/L, COD40mg/L.
As shown in Figure 1, the present embodiment comprises along water (flow) direction: the pre-treatment precipitation pool 101, drop oxygenation well 102 and wetland groove, wetland groove is divided into again aerobic nitrification section 103, inspection chamber 104, anoxic denitrification section 105 and pump well 106 by water (flow) direction.Water inlet pipe 1 is passed through with 42m in the pre-treatment precipitation pool 101
3the water yield water inlet of/d, water outlet enters drop oxygenation well 102 through horizontal weir 2 overflow, and the water level discrepancy in elevation is 50cm between the two.Drop oxygenation well 102 is connected by the aperture 4 bottom the two partition wall with wetland groove aerobic nitrification section 103.Intake after the process of over-wet land groove aerobic nitrification section 103, enter inspection chamber 104 through horizontal weir 10 overflow, introduce 13m with secondary inlet channel 11
3after the former water mix supplement carbon source of/d, enter anoxic denitrification section 105 by the aperture 12 bottom inspection chamber 104 and anoxic denitrification section 105 partition wall and process.Be disposed, enter pump well 106 through horizontal weir 16 overflow, eventually through rising pipe 17 discharger.
The described pre-treatment precipitation pool 101, drop oxygenation well 102 and wetland groove aerobic nitrification section 103, inspection chamber 104, wetland groove anoxic denitrification section 105 and pump well 106 are all built jointly, width is 5m, the degree of depth is 80cm, and length is respectively 5m, 2.5m, 15m, 0.5m, 22m, 0.5m.Pre-treatment precipitates the elevation of bottom height 50cm of elevation of bottom than subsequent disposal structures 102-106 on the pool 101.
The described pre-treatment precipitation pool 101, drop oxygenation well 102 and wetland groove aerobic nitrification section 103, inspection chamber 104, wetland groove anoxic denitrification section 105 and pump well 106 all adopt free stone masonry, skin is smeared sand-cement slurry and is done antiseepage, and Anti-seeping technology is carried out to roll clay in bottom.
The described pre-treatment precipitation pool 101 water outlet enters drop oxygenation well 102 through horizontal weir 2 overflow.Horizontal weir width is 160cm.
In described drop oxygenation well 102, utilize the drop of itself and pre-treatment settling tank 101 water surface 50cm, 3 grades of steps 3 are set and carry out drop oxygenation, every grade of step height 15cm, wide 10cm.
The water inlet of described wetland groove aerobic nitrification section 103, enters from the water inlet 4 bottom drop oxygenation well 102 and wetland groove aerobic nitrification section 103 partition wall.Aperture width 10cm, high 10cm, totally 12,10cm bottom distance drop oxygenation well 102.
Described wetland groove aerobic nitrification section 103, be divided into active matrix layer 7 and the thick 70cm of pedosphere 8. active matrix layer 7, top cladding thickness is the pedosphere 8 of 10cm, separates between the two with the nylon wire that aperture is 0.2cm, prevents soil particle from falling into hypothallus 7 and causes blocking.With 1.5 strains/m
2the vascular plant 6 of density plantation well developed root system, the root system of plant 6 stretches downwards through nylon wire, reaches in active matrix layer 7.With 2/m
2density vertically insert boring aeration pipe 5, aeration tube diameter 2cm, piercing aperture 0.2cm on pipe, bottom pipe at the bottom of arrival slot, top 20cm above ground level.
Active matrix in described wetland groove aerobic nitrification section 103 bodies is natural zeolite, and the plant of plantation is reed.
Described wetland groove aerobic nitrification-dephosphorization section 103 water outlet is discharged through the overflow of horizontal weir 10 and is entered inspection chamber.Weir, horizontal weir is wide is 160cm.
The side of described inspection chamber, apart from bottom land 70cm place, arranges secondary water inlet pipe.
Described wetland groove anoxic denitrification section 105 Inlet and outlet water mode and matrix-pedosphere structure are all similar with wetland groove aerobic nitrification section 103.But the active matrix 14 that wetland groove anoxic denitrification-dephosphorization section is filled is phosphorus sorbing material calcite, plant the plant turf without oxygenation function.
Described pump well 106, collects the water outlet of wetland groove anoxic denitrification section 105, and discharges system by rising pipe 17.
Long term monitoring shows, through the low-pollution water of this device process, the clearance of water outlet total nitrogen reaches 82%, ammonia nitrogen removal frank reaches 91%, total tp removal rate can reach 90%, COD clearance can reach 65%, is stable at the III class water quality standard that " water environment quality standard " delimit.
Claims (6)
1. the current wetland device for low-pollution water strengthened denitrification, it is characterized in that, comprise: pre-treatment settling tank, drop oxygenation well and wetland groove, wetland groove is divided into again aerobic nitrification section, inspection chamber, anoxic denitrification section and pump well by water (flow) direction, is provided with secondary inlet channel in inspection chamber; Former water precipitates overflow after the precipitation of the pool through pre-treatment and falls and enters drop oxygenation well, and the current after oxygenation enter wetland groove, complete nitrification in aerobic nitrification section; After inspection chamber and the secondary flowed out from secondary inlet channel are intake and mixed, enter anoxic denitrification section and complete denitrification, finally enter pump well, discharger;
The upstream sidewall of described drop oxygenation well and pre-treatment precipitate the pool and share, and this top side wall is provided with horizontal weir, and this horizontal weir connects 3 ~ 5 grades of drop steps, every grade of step height 10-20cm; The described pre-treatment precipitation pool and the water surface discrepancy in elevation of drop oxygenation well are 30-50cm;
The aerobic nitrification section of described wetland groove and the interior all filling thickness of the groove of anoxic denitrification section are the active matrix filler of 40-70cm, are the pedosphere of 10cm at packing layer top cladding thickness;
With net separately, the material of net, for having some strength and corrosion-resistant material, comprises nylon wire, and aperture is 0.2-0.8cm for described packing layer and pedosphere; The active matrix filler of filling in described aerobic nitrification section is ammonia nitrogen absorption material, comprises natural zeolite, vermiculite; The active matrix filler of filling in described anoxic denitrification section is phosphorus sorbing material, comprises calcite, manganese sand or activated alumina;
Vertically be inserted with boring aeration pipe in the aerobic nitrification section of described wetland groove, density is 4-8 root/m
2; It is strong and have the vascular plant of oxygenation that ability is taken root in pedosphere plantation, and density is 1-3 strain/m
2.
2. a kind of current wetland device for low-pollution water strengthened denitrification according to claim 1, is characterized in that, the described pre-treatment precipitation pool is rectangle or square, and long-width ratio is 3:1 to 1:1; Described drop oxygenation well is rectangle, along the long 100-200cm of water (flow) direction; Described wetland groove is rectangle, and long-width ratio is 10:1 to 3:1, and its degree of depth is 50-80cm.
3. a kind of current wetland device for low-pollution water strengthened denitrification according to claim 1, it is characterized in that, the bottom of described pre-treatment settling tank, drop oxygenation well and wetland groove is to roll clay or trinity mixture fill carries out Anti-seeping technology, pond body with free stone masonry, and does wall anti-seepage process with sand-cement slurry.
4. a kind of current wetland device for low-pollution water strengthened denitrification according to claim 1, it is characterized in that, the upstream sidewall on the described pre-treatment precipitation pool is provided with water inlet pipe, downstream sidewall end face is provided with horizontal weir, in the pre-treatment precipitation pool, input pending water by water inlet pipe, the supernatant liquor after precipitation is by the overflow water outlet of horizontal weir.
5. a kind of current wetland device for low-pollution water strengthened denitrification according to claim 1, is characterized in that, in described wetland groove, the length of aerobic nitrification section is 15 ~ 40:60 ~ 85 with the length ratio of anoxic denitrification section.
6. a kind of current wetland device for low-pollution water strengthened denitrification according to claim 1, it is characterized in that, in described wetland groove, aerobic nitrification section enters inspection chamber by the overflow of horizontal weir; Described inspection chamber side access secondary inlet channel, secondary flooding quantity is 0.1 to 1 times of device top flooding quantity; Described anoxic denitrification section water outlet enters pump well by the overflow of horizontal weir; Described pump well is by pipeline decanter the most at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014129.8A CN103739081B (en) | 2014-01-13 | 2014-01-13 | A kind of current wetland device for low-pollution water strengthened denitrification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014129.8A CN103739081B (en) | 2014-01-13 | 2014-01-13 | A kind of current wetland device for low-pollution water strengthened denitrification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103739081A CN103739081A (en) | 2014-04-23 |
| CN103739081B true CN103739081B (en) | 2015-10-14 |
Family
ID=50496174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410014129.8A Expired - Fee Related CN103739081B (en) | 2014-01-13 | 2014-01-13 | A kind of current wetland device for low-pollution water strengthened denitrification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103739081B (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478107A (en) * | 2014-12-03 | 2015-04-01 | 中国科学院南京地理与湖泊研究所 | Terrace-type drop aeration component and terrace-type drop aeration device |
| CN104556377B (en) * | 2014-12-15 | 2017-01-04 | 上海交通大学 | A kind of method of the low stain water body nitric efficiency improving low ratio of carbon to ammonium |
| CN106145363A (en) * | 2015-04-11 | 2016-11-23 | 北京远浪潮科技有限公司 | A kind of denitrogenation dephosphorizing artificial wetland process technology |
| CN105174451B (en) * | 2015-07-17 | 2018-07-06 | 中国环境科学研究院 | A kind of function division type artificial wet land system for handling breeding wastewater |
| CN105060612B (en) * | 2015-07-17 | 2017-06-06 | 中国环境科学研究院 | A kind of artificial swamp ecological canal system for processing dispersion pig flushing waste water |
| CN107720973B (en) * | 2017-11-22 | 2024-03-15 | 上海禾元环保集团有限公司 | Sewage treatment plant tail water constructed wetland treatment system |
| CN108002664A (en) * | 2018-01-10 | 2018-05-08 | 郑州大学 | A kind of city river cooperates with reoxygenation-biological reinforced denitrification system |
| CN108793602B (en) * | 2018-06-22 | 2021-11-16 | 衢州学院 | System for utilize ecological technology to handle domestic sewage |
| CN109052660A (en) * | 2018-08-02 | 2018-12-21 | 浙江海洋大学 | A kind of whole process autotrophic denitrification reaction unit |
| CN108911142A (en) * | 2018-08-23 | 2018-11-30 | 北京东方复地环境科技有限公司 | A kind of two-part strengthened denitrification intelligence artificial wet land system |
| CN109095617B (en) * | 2018-09-11 | 2022-02-18 | 浙江省海洋水产养殖研究所 | Ecological system for purifying seawater culture water by using compound artificial wetland in subtropical regions and purification method |
| CN109250821B (en) * | 2018-11-19 | 2023-12-29 | 中国机械设备工程股份有限公司 | Hierarchical biofiltration retention system |
| CN110217896A (en) * | 2019-06-12 | 2019-09-10 | 哈尔滨工业大学 | Microorganism embeds high-efficiency artificial wetland sewage treatment facility and technique |
| CN110386666B (en) * | 2019-07-16 | 2021-12-07 | 河海大学 | Surface flow wetland-composite pond system for sewage treatment |
| CN110946108B (en) * | 2019-12-26 | 2023-09-05 | 盐城工业职业技术学院 | Pond system for water quality circulation purification |
| CN111333271B (en) * | 2020-03-17 | 2022-08-05 | 爱土工程环境科技有限公司 | Sewage treatment system, application thereof and sewage treatment method |
| CN111233154A (en) * | 2020-03-20 | 2020-06-05 | 安徽农业大学 | Biological-ecological combined sewage treatment device |
| CN111517587A (en) * | 2020-05-29 | 2020-08-11 | 山东省环科院环境工程有限公司 | Deep bed undercurrent process for enhanced denitrification advanced treatment of low pollution sewage |
| CN111807639B (en) * | 2020-07-30 | 2023-01-17 | 中国城市建设研究院有限公司 | Tower-type reactor for ecological treatment of rural wastewater and treatment method |
| CN113200605A (en) * | 2021-04-02 | 2021-08-03 | 上海水源地建设发展有限公司 | Undercurrent wetland system suitable for low carbon nitrogen ratio sewage purification |
| CN113121064B (en) * | 2021-04-19 | 2022-02-11 | 中国水利水电科学研究院 | Efficient composite wetland system for reducing rainfall runoff pollutants |
| CN113184987A (en) * | 2021-05-31 | 2021-07-30 | 华中农业大学 | Denitrification wall with tail end for controlling non-point source nitrogen pollution and application thereof |
| CN113683197A (en) * | 2021-08-16 | 2021-11-23 | 安徽新宇生态产业股份有限公司 | Efficient nitrogen and phosphorus removal anti-blocking constructed wetland system |
| CN113801824A (en) * | 2021-10-14 | 2021-12-17 | 中交和美环境生态建设有限公司 | Pseudomonas Y1 with efficient heterotrophic nitrification and aerobic denitrification function and embedded pellet and application thereof |
| CN115215446A (en) * | 2022-07-29 | 2022-10-21 | 江苏河马井股份有限公司 | Method for treating sewage by adding hydrogen peroxide |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205096A (en) * | 2007-11-26 | 2008-06-25 | 刘正应 | Sewage treatment method capable of avoiding filler silting of subsurface flow constructed wetland and facilities thereof |
| CN101708897A (en) * | 2009-11-26 | 2010-05-19 | 同济大学 | Water treatment technology of inclined plane undercurrent artificial wetland |
| CN101905944A (en) * | 2010-08-24 | 2010-12-08 | 北京特兰斯福生态环境科技发展有限公司 | Composite-type sewage sludge treatment system for artificial wetland |
| CN102173511A (en) * | 2011-01-18 | 2011-09-07 | 上海交通大学 | Active-matrix-reinforced underflow constructed wetland device |
| KR101218767B1 (en) * | 2011-06-30 | 2013-01-09 | 한서대학교 산학협력단 | Vegetation Wetland System for Treatment of Urban Non-Contaminant Pollutants by Aerobic and Anaerobic Decomposition |
| CN202717631U (en) * | 2012-04-27 | 2013-02-06 | 湖北理工学院 | Carbon-oxygen combined regulation and control denitrification system of horizontal subsurface-flow wetland |
| CN202849197U (en) * | 2012-06-01 | 2013-04-03 | 北京市水利规划设计研究院 | Deep purification and combined denitrification system for polluted ground water |
| CN103253772A (en) * | 2013-05-23 | 2013-08-21 | 中国环境科学研究院 | Solid carbon source enhanced nitrogen removal system of horizontal subsurface flow constructed wetland |
| CN103274530A (en) * | 2013-06-19 | 2013-09-04 | 中国环境科学研究院 | Zonal vertical current artificial wetland system with reinforced denitrification function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7470362B2 (en) * | 2007-04-13 | 2008-12-30 | Modular Wetland Systems, Inc. | In line wetland water treatment system and method |
-
2014
- 2014-01-13 CN CN201410014129.8A patent/CN103739081B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205096A (en) * | 2007-11-26 | 2008-06-25 | 刘正应 | Sewage treatment method capable of avoiding filler silting of subsurface flow constructed wetland and facilities thereof |
| CN101708897A (en) * | 2009-11-26 | 2010-05-19 | 同济大学 | Water treatment technology of inclined plane undercurrent artificial wetland |
| CN101905944A (en) * | 2010-08-24 | 2010-12-08 | 北京特兰斯福生态环境科技发展有限公司 | Composite-type sewage sludge treatment system for artificial wetland |
| CN102173511A (en) * | 2011-01-18 | 2011-09-07 | 上海交通大学 | Active-matrix-reinforced underflow constructed wetland device |
| KR101218767B1 (en) * | 2011-06-30 | 2013-01-09 | 한서대학교 산학협력단 | Vegetation Wetland System for Treatment of Urban Non-Contaminant Pollutants by Aerobic and Anaerobic Decomposition |
| CN202717631U (en) * | 2012-04-27 | 2013-02-06 | 湖北理工学院 | Carbon-oxygen combined regulation and control denitrification system of horizontal subsurface-flow wetland |
| CN202849197U (en) * | 2012-06-01 | 2013-04-03 | 北京市水利规划设计研究院 | Deep purification and combined denitrification system for polluted ground water |
| CN103253772A (en) * | 2013-05-23 | 2013-08-21 | 中国环境科学研究院 | Solid carbon source enhanced nitrogen removal system of horizontal subsurface flow constructed wetland |
| CN103274530A (en) * | 2013-06-19 | 2013-09-04 | 中国环境科学研究院 | Zonal vertical current artificial wetland system with reinforced denitrification function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103739081A (en) | 2014-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103739081B (en) | A kind of current wetland device for low-pollution water strengthened denitrification | |
| CN101475284B (en) | Domestic sewage treatment process and apparatus | |
| CN103936233B (en) | Artificial swamp sewage disposal denitrification process Nitrous Oxide reduces discharging Controlling System | |
| CN101362624B (en) | Dispersive high-efficiency purification treatment equipment of sewage | |
| CN204324990U (en) | Be applicable to the multi-stage biological filter tank-ecological pond purification system into lake landscape water body | |
| CN101531437A (en) | Compound treatment method of wastewater in pig farm | |
| CN102557330A (en) | An/O type composite artificial wetland system for enhanced treatment of low-C/N ratio wastewater | |
| CN101671096A (en) | Method for processing sewage by multilevel vertical-current compound manual wetting ground and processing system thereof | |
| CN100418904C (en) | Vertical current and horizontal current integrated composite artificial wetland treatment method for treating urban sewage | |
| CN103183445A (en) | Method and system for advanced treatment of rural domestic sewage | |
| CN104828946A (en) | Biocatalysis packing subsurface infiltration system for enhancing denitrification | |
| CN111204927A (en) | Ecological public toilet sewage treatment circulating system and sewage treatment and recycling method | |
| CN102351382A (en) | Combined treatment method of leachate and excrement wastewater | |
| CN112142258B (en) | Resource and standard treatment method for domestic sewage of villages and towns | |
| CN107445304B (en) | Enhanced denitrification method and enhanced denitrification wetland system suitable for subsurface flow constructed wetland | |
| CN103723892B (en) | Livestock and poultry wastewater treatment system and treatment method using system | |
| CN105174469A (en) | Integrated composite stereo constructed wetland system and sewage processing method | |
| CN204752315U (en) | Reinforce biological catalysis filler underground infiltration system of denitrification | |
| CN101863596B (en) | Sewage treatment system of secondary anaerobic horizontal baffling compound type artificial wetland and sewage treatment method thereof | |
| CN2905775Y (en) | Composite artificial wetland | |
| CN206783408U (en) | Compound type constructed wetland system for high-ammonia-nitrogen sewage processing | |
| CN206033519U (en) | Rural domestic sewage of solar energy drips and strains processing system | |
| CN105000753A (en) | Device and method for recovering nitrogen and phosphorus in sewage and improving biological productivity of microalgae | |
| CN109354336A (en) | The optimum organization system of town domestic sewage processing | |
| CN101759331B (en) | System for treating sewage of preposition activated sludge-gallery type artificial wetland and method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20180113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |