CN205556241U - Composite artificial wetland - Google Patents
Composite artificial wetland Download PDFInfo
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- CN205556241U CN205556241U CN201620262400.4U CN201620262400U CN205556241U CN 205556241 U CN205556241 U CN 205556241U CN 201620262400 U CN201620262400 U CN 201620262400U CN 205556241 U CN205556241 U CN 205556241U
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- wetland
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- subsurface flow
- combined artificial
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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
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model relates to a to the rainwater with pollute the composite artificial wetland of river a little, composite artificial wetland processing system includes binary channels intake unit, regulation sedimentation tank unit, one or more vertical -flow wetland unit, one or more horizontal undercurrent wetland unit and surface current wetland unit, sets up a plurality of picture peg floodgates and distributing channel between each unit, through the picture peg floodgate open and close the operational mode of coming the adjustment different, different wetland units adopt different fillers to mat formation. The utility model discloses a composite artificial wetland uses processing initial stage rainwater and pollutes the river a little to the purpose, and suspended solid in the initial stage rainwater (SS) content is high, and it is low to pollute river organics in water content a little, easy being got rid of.
Description
Technical field
This utility model relates to sewage treatment area, is specifically related to a kind of for processing rainwater or polluted river water
Combined artificial wetland.
Background technology
Along with the quickening of Chinese Urbanization level, urban water-through road area ratio is more and more less, by earth's surface
Paroxysmal, impact the is strong early-stage rainwater that runoff produces has become the master of receiving water body water environment pollution
One of originate.City initial rainwater contains substantial amounts of pollutant, and pollutional load is dirty far above urban life
Water, the water environment pollution that early-stage rainwater causes has become urgently to be resolved hurrily in the water environment comprehensive control of current city
One of subject matter.Meanwhile, a lot of urban rivers and lakes of China, due to the entering of nutrient of nitrogen phosphorus, is made
Become the eutrophication of water body, whole view is caused and has a strong impact on.Therefore, process polluted water body,
Removing the materials such as organic matter, nitrogen, phosphorus, purify water recovery water bodies of rivers and lakes functional requirement, it has also become urgent
Demand.
Artificial swamp refers to by the simulation function of natural wetland and feature, artificial design and build by base
Matter, plant, microorganism and a kind of complex ecological system with unique texture and power of water body composition
System, is come by processes such as substrate filtration, absorption, ion exchange, plant absorption and microbial decomposition conversions
Realize the high-efficient purification to sewage, it has, and wastewater treatment efficiency is reliable and stable, processing procedure energy consumption is low,
The advantages such as landscape effect is good, operational management is simple, continuable social benefit.
Artificial swamp is according to the difference of water distribution manner and the difference of the sewage type of flow in wetland, permissible
It is divided into surface current artificial wetland, horizontal drowned flow artificial wet land and vertical subsurface flow wetland.All kinds people
Although work wetland is respectively arranged with advantage, but the most all comes with some shortcomings, it is easy to there is summer in such as surface current artificial wetland
Growing mosquitos and flies, easily freeze winter, dirt-removing power is limited, the shortcoming that nitrification ability is the highest；Horizontal drowned flow people
The shortcoming that the existence of work wetland easily blocks, Nitrogen/Phosphorus Removal is relatively poor；Vertical subsurface flow wetland exists
Easily blocking, the shortcoming that construction cost is high and management maintenance is complicated.
Above artificial wet land treating system is mainly single treatment early-stage rainwater or micropollutant water, and utilizes
The correlational study that combined artificial wetland group technology processes early-stage rainwater and micropolluted river water simultaneously is less, this
Utility model is mainly for problems such as initial rainwater pollutant concentration height and river eutrophication, to remove
The nutrient substance such as float in early-stage rainwater and micropolluted river water, Organic substance, nitrogen, phosphorus are target, right
Artificial swamp has carried out systematic research in all directions.In order to solve the susceptible to plugging problem of artificial swamp, artificial
Wetland individual processing early-stage rainwater it cannot be guaranteed that plant to the demand of water, artificial swamp to the nutrition such as nitrogen, phosphorus
The most high deficiency of material clearance, and how to improve artificial swamp landscape effect, reduce manual as far as possible
Vestige, with problems such as surrounding landscape coordinations mutually, common artificial swamp has been carried out Integration ofTechnology design.
Consider blockage resisting design in technique, and process early-stage rainwater and micropolluted river water are combined, simultaneously
Consider easily operated operational management and view requirement, develop a kind of early-stage rainwater and micropolluted river water
Composite artificial wet land treating system.
Utility model content
For problems of the prior art, this utility model provides a kind of for rainwater and micro-pollution river
The combined artificial wetland of water, described combined artificial wetland includes dual pathways inlet unit, sedimentation tank list of regulating and storing
Vertical subsurface flow wetland units first, one or more, one or more horizontal subsurface flow wetland unit and surface
Stream wetland unit, arranges multiple slide gate and distributing channel, between the various elements by the unlatching of slide gate
Adjusting different operational modes with closing, different wetland units use different fillers to mat formation.
Preferably, according in described combined artificial wetland of the present utility model, described dual pathways inlet unit
Including rainwater water inlet pipe and micropolluted river water water inlet pipe.
Preferably, according in described combined artificial wetland of the present utility model, 8 slide gates and 5 are set
Individual distributing channel.
Preferably, according in described combined artificial wetland of the present utility model, described in regulate and store sedimentation tank according to
Topographic features arranges vertical training wall and U-shaped training wall wherein, to control water (flow) direction.
Preferably, according in described combined artificial wetland of the present utility model, described vertical subsurface flow wetland list
Unit is made up of four processing units, respectively vertical subsurface flow wetland I district, II district, III district and IV district,
Filling filler in four processing units is divided into three layers of table at the end, the bottom of vertical subsurface flow wetland I and III,
Filler in middle level and top layer is followed successively by gravel, slag and sand, the end of vertical subsurface flow wetland II and IV
Filler in layer, middle level and top layer is followed successively by gravel, zeolite and sand.
Preferably, according in described combined artificial wetland of the present utility model, described vertical subsurface flow wetland I,
The filler cobble-stone particle diameter of II, III and IV is 30-60mm, and sized zeolite particles is 6-15mm, slag particle diameter
For 5-10mm；The thickness of vertical subsurface flow wetland I district cobble-stone, slag and sand be respectively 30-60cm,
The thickness of 30cm and 20cm, vertical subsurface flow wetland II district cobble-stone, zeolite and sand be respectively 30-60cm,
The thickness of 30cm and 20cm, vertical subsurface flow wetland III district cobble-stone, slag and sand be respectively 30-40cm,
The thickness of 30cm and 20cm, vertical subsurface flow wetland IV district cobble-stone, zeolite and sand be respectively 30-40cm,
30cm and 20cm.
Preferably, according in described combined artificial wetland of the present utility model, described horizontal subsurface flow wetland by
Two processing unit compositions, respectively horizontal subsurface flow wetland I district and II district, described horizontal subsurface flow wetland I
Filling filler in district and II district is divided into end table two-layer, horizontal subsurface flow wetland I district and II district filler to lay phase
With, bottom is followed successively by rubble, zeolite, shale and fine sand, Surface mulch planting soil.
Preferably, according in described combined artificial wetland of the present utility model, described horizontal subsurface flow wetland I
In district and II district fill filler rubble, zeolite, the particle diameter of shale and fine sand are respectively 30-60mm,
8-15mm, 5-10mm and 3-6mm, need to separate with permeable non-woven fabrics between different packing layers.
Preferably, according in described combined artificial wetland of the present utility model, described surface current artificial wetland
For general surface artificial wetland, outlet arranges overfall.
Preferably, according in described combined artificial wetland of the present utility model, by different distributing channels with
The design of slide gate, perforated wall and piping mode etc., it is achieved the control of flow shape, decreases process system
The dead angle of system, improves treatment effeciency, is both needed to pre-embedded water-proof sleeve tube, each Manual moist at Pipeline Crossing Program pool wall
Ground unit bottom all does antiseepage.
Preferably, according in described combined artificial wetland of the present utility model, all current wetland regions without
Substantially water-retention, water self-restraint bottom, middle level, top layer filter course among, very water of the most not planting is planted
Thing, floating plant and submerged plant, the hygrophyte of the resistance that is suitable for planting.
In composite artificial wet land treating system of the present utility model, for ensureing that landscape effect is good, and take into account
Having high salt tolerance, optionally spring and summer is viewed and admired phragmites communis, Rhizoma Acori Graminei, Herba Lythri Salicariae, summer and autumn in plantation
View and admire phragmites communis, salicornia europaeal, Herba Lythri Salicariae, Herba potamogetonis distincti etc..Spring and autumn three quarters ornamental Value of Spartina Anglica, accomplishes three
Ji Youjing, Ji Ji have green.Artificial swamp both sides can be planted and be viewed and admired the resistance pole that phragmites communis, Rhizoma Acori Graminei etc. are higher
Strong hygrophyte, forms the wetland landscape space that closing are respond well.Remaining region is low in can being aided with
The humidogene ground quilt that layer resistance is extremely strong, such as salicornia europaeal, Herba Lythri Salicariae etc., neither blocks the water distribution as vein
Canal, is aided with again plant simultaneously and breaks the limit, hard pond of dullness.Adjusted by the opening and closing of slide gate
Whole different operational mode, uses series system to run, uses under micropolluted river water pattern under rainwater pattern
Parallel way is run.
Beneficial effect
For the purpose of processing early-stage rainwater and micropolluted river water, in early-stage rainwater, float (SS) content is high,
In micropolluted river water, content of organics is low, is easily removed.
River bank, city can be built according to composite constructed wetland system of the present utility model, water inlet collection system by
Two parts form, and are used for processing early-stage rainwater and micropolluted river water, alternate treatment two parts water, during rainfall,
This system mainly processes early-stage rainwater, when not having rainfall, processes micropolluted river water, is possible to prevent not have
The plant that early-stage rainwater causes dries up, and the most also reduces and supports pipe expense.
Sedimentation tank of regulating and storing regulation early-stage rainwater enters the flow of artificial swamp unit, removes the SS in water inlet,
Reduce hydraulic load；Vertical subsurface flow wetland I and II unit have whole combined artificial wetland simultaneously
The effect of pretreatment, prevents vertical subsurface flow wetland III and IV unit and horizontal drowned flow artificial wet land
Filler blocks, it is simple to the management in later stage is safeguarded；Horizontal drowned flow artificial wet land unit designs through reasonable stringing
And Fillers selection, can effectively prevent horizontal subsurface flow wetland " short stream " phenomenon, effectively prevent filler and block up
Plug, improves the removal of nutritive salt.
View and admire the hygrophytes such as phragmites communis, Rhizoma Acori Graminei, Herba Lythri Salicariae, Value of Spartina Anglica, not only to SS, Organic substance, nitrogen
There is good removal effect, also have the highest landscape effect by reasonably design simultaneously.
Accompanying drawing illustrates:
Fig. 1 is the site plan according to combined artificial wetland of the present utility model；
Fig. 2 is the schematic diagram of the rainwater treatment operational mode according to combined artificial wetland of the present utility model；
Fig. 3 is the micropolluted river water operational mode schematic diagram according to combined artificial wetland of the present utility model；
Fig. 4 is the detail drawing of the node 1 and 2 according to combined artificial wetland of the present utility model；
Fig. 5 is according to precipitating storage pond profile in combined artificial wetland of the present utility model.
Reference:
1: rainfall pumping station water inlet pipe
2: river water inlet pipe
3: sedimentation tank of regulating and storing
4: vertical subsurface flow wetland I region
5: vertical subsurface flow wetland II region
6: vertical subsurface flow wetland III region
7: vertical subsurface flow wetland IV region
8: horizontal subsurface flow wetland I region
9: horizontal subsurface flow wetland II region
10: free water surface wetland
1' to 8': slide gate 1' to 8'
1 " to 5 ": distributing channel 1 " to 5 "
A: node A
B: node B
C: overfall.
Detailed description of the invention
Hereinafter, this utility model is described referring to the drawings in detail.
Fig. 1 is the site plan according to combined artificial wetland of the present utility model.As it is shown in figure 1, this
The composite constructed wetland system of utility model includes dual pathways inlet unit, rainfall pumping station water inlet pipe 1, river
Water water inlet pipe 2, sedimentation tank 3 of regulating and storing, vertical subsurface flow wetland I region 4, vertical subsurface flow wetland II region 5,
Vertical subsurface flow wetland III region 6, vertical subsurface flow wetland IV region 7, horizontal subsurface flow wetland I region 8,
Horizontal subsurface flow wetland II region 9 and free water surface wetland 10 form, and are attached with slide gate 1' to 8', water distribution
Canal 1 " to 5 " and draining overfall C.
This utility model dual pathways unit water inlet pipe includes rainwater water inlet pipe and river water inlet pipe, early-stage rainwater
Employing time and the water inlet of flow controller co-controlling, it is stipulated that the early-stage rainwater before the time enters compound people
Work wet land system, it is stipulated that the rainwater after the time can be directly discharged into river, old course.Process early-stage rainwater process
Middle stopping processes micropolluted river water, is switched to process micropolluted river water unit, micro-pollution river when not raining again
Water conservancy elevator pump controls flow of inlet water, is possible to prevent the plant not having early-stage rainwater to cause to dry up.Two
When a job, another stops intake tunnel, and by the opening and closing of different slide gates, adjusts
The whole different method of operation.
Early-stage rainwater or micropolluted river water are collected entrance by dual pathways inlet unit and are regulated and stored sedimentation tank unit,
After precipitation pretreatment, enter artificial wetland treatment unit, float in early-stage rainwater, Organic substance,
The pollutant such as nitrogen, phosphorus are removed further at this element, and the water after process enters river course through overfall.
In vertical subsurface flow wetland I district and II district, the hygrophyte of the salt tolerant resistance of plantation is (such as phragmites communis and perfume (or spice)
Pu) play certain effect intercepting big float, the sand of vertical subsurface flow wetland small particle at the middle and upper levels
Son is conducive to plant to take root and growth of microorganism, and the gravel of the big particle diameter of lower floor has bottom utilization crosses water, it is to avoid
Filler blocks.
In horizontal drowned flow artificial wet land I and II, design through rational distributing channel and piping mode, prevent
Water in horizontal subsurface flow wetland only causes filler can not play the effect of itself, water in Surface runoff
Stream is only called " short stream " in Surface runoff without the mode of bottom filler, according to conjunction conventional in the art
Being possible to prevent horizontal subsurface flow wetland " short stream " after reason design, the waterpower adding horizontal subsurface flow wetland unit is stopped
Stay the time, thus effectively raise the removal effect of nitrogen phosphorus.
Fig. 2 and Fig. 3 is the schematic diagram of two kinds of operational modes according to combined artificial wetland of the present utility model.
As shown in Figures 2 and 3, combined artificial wetland of the present utility model has purified treatment rainfall pumping station simultaneously
The early-stage rainwater of discharge and the function of micropolluted river water.For the two purpose, the operation of this artificial swamp
Pattern is also classified into two kinds:
(1) rainwater treatment operational mode
As in figure 2 it is shown, the first water in rapid deflation sedimentation tank storage pond, open slide gate 1', 5',
6', closes slide gate 2', 3', 4', 7', 8', makes vertical subsurface flow wetland, horizontal drowned flow artificial wet land
Being that series system runs with surface current artificial wetland, hydraulic detention time is set to 17h, at the beginning of main removal
Nitrogen substance in phase rainwater, phosphorus containg substances, heavy metal etc..
(2) micropolluted river water operational mode
As it is shown on figure 3, open slide gate 1', 3', 4', 5', 7', close slide gate 2', 6', 8', make
Vertical subsurface flow wetland, horizontal drowned flow artificial wet land and surface current artificial wetland are that parallel way is run,
Hydraulic detention time is set to 24h, mainly removes BOD5, nitrogen substance in micropolluted river water, contains
Phosphorus substance, float etc..
Fig. 4 is the detail drawing of node A and B according to combined artificial wetland of the present utility model；Such as Fig. 4
Shown in, node A comprises three slide gates, respectively slide gate 2', 3' and 4', node B comprises
Two slide gates, respectively slide gate 7' and 8'.When enabling rainwater treatment operational mode, in node A
Slide gate 7', 8' Close All in slide gate 2', 3', 4' and node B, makes artificial swamp unit be formed
Two set independent operatings, respectively vertical subsurface flow wetland I-vertical subsurface flow wetland III-horizontal subsurface flow wetland V-table
Surface current composite constructed wetland system and vertical subsurface flow wetland II-vertical subsurface flow wetland IV-horizontal subsurface flow wetland
VI-surface stream composite constructed wetland system.When enabling water system bypass and purifying operational mode, open node A
Slide gate 3' and 4', closes slide gate 2', opens the slide gate 7' in node B simultaneously, close slide gate
8', makes artificial swamp unit form the method for operation of a set of series connection, for vertical subsurface flow wetland II-vertical subsurface flow
Wetland IV-vertical subsurface flow wetland I-vertical subsurface flow wetland III-horizontal subsurface flow wetland V-surface stream combined artificial is wet
Ground system.
Fig. 5 is according to precipitating storage pond profile in combined artificial wetland of the present utility model.Such as Fig. 5 institute
Show, described in regulate and store and a vertical training wall and a U-shaped training wall be set, to control water in the middle of sedimentation tank
Flow path direction, makes water have enough time of staying in sedimentation tank of regulating and storing, the main SS removed in sewage,
A small amount of Organic substance, nitrogen and phosphorus can be removed.
Above example is only the exemplary embodiment of the present invention, is not used in restriction this utility model, this reality
It is defined by the claims with novel protection domain.Those skilled in the art can be of the present utility model
In essence and protection domain, the present invention making various amendment or equivalent, this amendment or equivalent are replaced
Change and also should be regarded as in protection scope of the present invention.
Claims (9)
1. a combined artificial wetland, for rainwater and the process of micropolluted river water, it is characterised in that institute
State combined artificial wetland and include dual pathways inlet unit, sedimentation tank unit of regulating and storing, one or more vertical latent
Stream wetland unit, one or more horizontal subsurface flow wetland unit and free water surface wetland unit, single at each
Multiple slide gate and distributing channel are set between unit, for adjusting different operational modes, described operational mode
Including rainwater pattern and micropolluted river water pattern；Different wetland units use different fillers to mat formation.
Combined artificial wetland the most according to claim 1, it is characterised in that the described dual pathways is intake
Unit includes rainwater water inlet pipe and micropolluted river water water inlet pipe.
Combined artificial wetland the most according to claim 1, it is characterised in that described combined artificial is wet
Ground arranges 8 slide gates and 5 distributing channels.
Combined artificial wetland the most according to claim 1, it is characterised in that described in regulate and store sedimentation tank
Unit arranges vertical training wall and U-shaped training wall wherein according to topographic features, to control water (flow) direction.
Combined artificial wetland the most according to claim 1, it is characterised in that described vertical subsurface flow is wet
Ground unit is made up of four processing units, respectively vertical subsurface flow wetland I district, II district, III district and IV
District, the filling filler in four processing units is divided into three layers of table at the end, the end of vertical subsurface flow wetland I and III
Filler in layer, middle level and top layer is followed successively by gravel, slag and sand, vertical subsurface flow wetland II and IV
Bottom, middle level and top layer in filler be followed successively by gravel, zeolite and sand.
Combined artificial wetland the most according to claim 5, it is characterised in that described vertical subsurface flow is wet
The filler cobble-stone particle diameter of ground I, II, III and IV is 30-60mm, and sized zeolite particles is 6-15mm, steel
Slag particle footpath is 5-10mm；The thickness of vertical subsurface flow wetland I district cobble-stone, slag and sand is respectively
30-60cm, 30cm and 20cm, the thickness of vertical subsurface flow wetland II district cobble-stone, zeolite and sand divides
Not Wei 30-60cm, 30cm and 20cm, vertical subsurface flow wetland III district cobble-stone, slag and the thickness of sand
Degree is respectively 30-40cm, 30cm and 20cm, vertical subsurface flow wetland IV district cobble-stone, zeolite and sand
Thickness be respectively 30-40cm, 30cm and 20cm.
Combined artificial wetland the most according to claim 1, it is characterised in that described horizontal drowned flow is wet
Ground unit is made up of two processing units, respectively horizontal subsurface flow wetland I district and II district, and described level is dived
Filling filler in stream wetland I district and II district is divided into end table two-layer, horizontal subsurface flow wetland I district and II district to fill out
Material is laid identical, and bottom is followed successively by rubble, zeolite, shale and fine sand, Surface mulch planting soil.
Combined artificial wetland the most according to claim 7, it is characterised in that described horizontal drowned flow is wet
In I district, ground and II district fill filler rubble, zeolite, the particle diameter of shale and fine sand are respectively 30-60mm,
8-15mm, 5-10mm and 3-6mm, separate with permeable non-woven fabrics between different packing layers.
Combined artificial wetland the most according to claim 1, it is characterised in that described surface turning flow artificial
The outlet of wetland unit arranges overfall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620262400.4U CN205556241U (en) | 2016-03-30 | 2016-03-30 | Composite artificial wetland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620262400.4U CN205556241U (en) | 2016-03-30 | 2016-03-30 | Composite artificial wetland |
Publications (1)
| Publication Number | Publication Date |
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| CN205556241U true CN205556241U (en) | 2016-09-07 |
Family
ID=56813444
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620262400.4U Expired - Fee Related CN205556241U (en) | 2016-03-30 | 2016-03-30 | Composite artificial wetland |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746340A (en) * | 2016-12-30 | 2017-05-31 | 上海宏波工程咨询管理有限公司 | For the ecology corridor processing system of urban rainwater pumping plant floss hole pollutant fluxes |
| CN108249575A (en) * | 2017-12-20 | 2018-07-06 | 上海市政工程设计研究总院（集团）有限公司 | A kind of method for treating water for controlling area-source pollution |
| CN108439734A (en) * | 2018-06-12 | 2018-08-24 | 沈阳建筑大学 | A kind of strengthened denitrification artificial wet land system distributed rationally based on plant |
| CN108911155A (en) * | 2018-07-17 | 2018-11-30 | 江苏省环境科学研究院 | A kind of hybrid constructed wetland system and its method for handling low-concentration heavy metal sewage |
| CN110330176A (en) * | 2019-07-09 | 2019-10-15 | 天津生态城市政景观有限公司 | Water pollution governing system and method based on combined artificial wetland |
| CN111115835A (en) * | 2020-01-15 | 2020-05-08 | 中国水利水电科学研究院 | Natural river sewage control system and method and design method |
-
2016
- 2016-03-30 CN CN201620262400.4U patent/CN205556241U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746340A (en) * | 2016-12-30 | 2017-05-31 | 上海宏波工程咨询管理有限公司 | For the ecology corridor processing system of urban rainwater pumping plant floss hole pollutant fluxes |
| CN108249575A (en) * | 2017-12-20 | 2018-07-06 | 上海市政工程设计研究总院（集团）有限公司 | A kind of method for treating water for controlling area-source pollution |
| CN108439734A (en) * | 2018-06-12 | 2018-08-24 | 沈阳建筑大学 | A kind of strengthened denitrification artificial wet land system distributed rationally based on plant |
| CN108439734B (en) * | 2018-06-12 | 2021-06-04 | 河南景尚环保科技有限公司 | Enhanced denitrification constructed wetland system based on plant optimization configuration |
| CN108911155A (en) * | 2018-07-17 | 2018-11-30 | 江苏省环境科学研究院 | A kind of hybrid constructed wetland system and its method for handling low-concentration heavy metal sewage |
| CN108911155B (en) * | 2018-07-17 | 2019-11-12 | 江苏省环境科学研究院 | A kind of hybrid constructed wetland system and its method for handling low-concentration heavy metal sewage |
| CN110330176A (en) * | 2019-07-09 | 2019-10-15 | 天津生态城市政景观有限公司 | Water pollution governing system and method based on combined artificial wetland |
| CN111115835A (en) * | 2020-01-15 | 2020-05-08 | 中国水利水电科学研究院 | Natural river sewage control system and method and design method |
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| 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: 20160907 Termination date: 20190330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |