CN205313193U - System for purifying micro -polluted water flowing to reservoirs (lakes) and repairing ecological wetlands - Google Patents
System for purifying micro -polluted water flowing to reservoirs (lakes) and repairing ecological wetlands Download PDFInfo
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Classifications
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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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 discloses a system for purifying micro -polluted water flowing to reservoirs (lakes) and repairing ecological wetlands, this system include water conservancy automatic control upset gate, constructed wetland and multistage cascaded constructed wetland bank protection, multistage cascaded constructed wetland bank protection includes by a no sand concrete slab and a sheet pile component that constitutes that this sheet pile component has the filler and plants the plant from set up to low by the height, fill several rows ofly between adjacent two rows sheet pile components on river course bank slope, the bottom of multistage cascaded constructed wetland bank protection is equipped with waterproof interlayer, is provided with prevention of seepage geotechnique cloth in the one side in river course dorsad at no sand concrete slab, it makes the water distributing area of water from the cascaded constructed wetland bank protection stream of higher level to the cascaded constructed wetland bank protection of subordinate's level to be equipped with at least one between the cascaded constructed wetland bank protection of adjacent two -stage. This system is through utilizing ecological embankment and ecological wetland method to restore the river course polluted water body to make COD, BOD, TP and TN content greatly reduced.
Description
Technical field
This utility model belongs to riverway water quality purification technical field, is specifically related to purification of water quality and the river slope protection ecologic wetland recovery technique in a kind of river.
Background technology
Along with developing rapidly of modern economy, by the impact of industry and the anthropic factor such as municipal wastewater and agricultural surface runoff, river pollution problem is day by day serious. The main Environmental Problems in current China lake is body eutrophication, and the major pollutants causing body eutrophication are the nutrient substance such as nitrogen, phosphorus, and ingoing river is the main source of its pollution. Ingoing river mostly is micro-polluted river, and its nitrogen, phosphorus and organic matter removal are one of keys controlling lake eutrophication. Micropolluted river water administers the particularity having self, compares with sanitary sewage, belongs to low concentration micropollutant water, has very big difference processing, it is impossible to apply mechanically existing sewage water treatment method and theory in technique, process requirement. The generation of micro-polluted riverway water body, the water yield and water quality be mainly characterized in that: that (1) river sewage flow is big and changes in flow rate has significantly seasonal and periodically. General pluvial period in the summer discharge of river is relatively big, and the winter-spring season discharge of river is less very strong seasonality; Polluted river discharge is general all relatively larger, and intractability increases; (2) pollutant levels are relatively low, water quality index permanganate index on average lower than 20mg/L, ammonia nitrogen on average lower than 5mg/L, TN lower than 10mg/L, TP lower than 0.5mg/L, concentration is far below sanitary sewage and industrial wastewater. (3) River wide coverage, water pollutant levels change greatly. General river pollutant levels in dry season are the highest, and the period when a river is at its normal level, concentration was placed in the middle, and wet season concentration is minimum. (4) River Water Pollution species is complicated, does not contain only the pollutant such as nitrogen phosphorus and Organic substance, also includes non-degradable pollutant and other toxic pollutants.
The technical method purified for micropolluted river water at present can be divided mainly into three classes, i.e. physical method, chemical method and biological method.
Physical method mainly has water transfer dilution method, Sediment Dredging method and mechanical aeration, mostly is in situ treatment in this method.
Shortcoming: (1) can not fundamentally solve pollution problem, the simply water quality in minor betterment river; (2) secondary pollution is caused, costly;
Chemical method, mainly to dosing coagulant, enzyme inhibitor etc. in polluted river water, makes Mixing Coefficient in Rectangular Channels flocculation sediment, kills water body harmful microorganism. This kind method is simply effective, effect is rapid, applies wide in administering algal bloom, drink water purifying.
Shortcoming: (1) easily causes secondary pollution. Add material inherently a kind of chemical reagent, it is possible to water body environment can be changed, poison certain aquatile; (2) chemical reagent is expensive, is not suitable for life-time service.
Biological and ecological method mainly has the technology such as artificial swamp, biological floating bed technology.
1, artificial swamp
Artificial swamp is a kind of by artificial constructed and regulation and control wet land systems, carries out wastewater treatment by its optimum organization of physics, chemistry and biological agent in ecosystem. Substrate, plant and microorganism and many wet environments together constitute the fundamental of artificial swamp, define the distinctive ecosystem of wetland. Polluted river is appropriately arranged with artificial swamp, is conducive to the nutrient substance in the sewage purification of river water, absorption polluted water body, reaches to purify the effect repairing micropolluted river water.
Shortcoming: (1) Performance of Constructed Wetlands Substrates proportion requirement is higher, technology relative complex, and cost is high, is unsuitable for extensive water body and processes; (2) regular maintenance is more complicated; (3) more apparent by ambient air temperature and seasonal effect; (4) floor space is big, and hydraulic load is little, and engineering requires higher.
2, biological floating bed technology
Biological floating bed technology is with macromolecular material or bamboo and wood materials for carrier, the terrestrial plant of higher aquatic plants or improvement is planted the water surface of eutrophication water, by the absorption and sorption effect of plant root and Species Competition restriction or checking relation in five elements mechanism, cut down the nitrogen phosphorus in water body and organic substance, thus purifying water. Biological floating bed except the pollutant in water body can be removed, also have good landscape effect, increase aqueous bio multiformity and certain economic benefit.
Shortcoming: (1) biological floating bed at present application typically belongs to original position water remediation, it is necessary to take bigger water surface area, affects river navigation and flood control; (2) aquatic plants growth is bigger by such environmental effects such as illumination, temperature and seasons so that biological floating bed bigger in annual clean-up effect fluctuation.
Existing river corridor restoration technology is essentially relying on river course planted on two sides emergent aquactic plant and submerged plant, such as " a kind of stair device for river water body restoration of the ecosystem "; Or in river course, place the mode such as floating bed having planted plant purify water, such as " system of floating composite botanical zone in situ biologically rehabilitating water body ". Above-mentioned technology can be passed through such plant self on the one hand and directly absorb the polluter in river, playing the effect purified water, on the other hand, above-mentioned plant has the effect of microbe carrier, microorganism total amount river course in can be greatly improved, thus strengthening the natural purifying ability in river course.
Although above two technology can repair the ecological environment in impaired river course, purify contaminated quality of river water, but in actual river water quality recovery project, owing to there is following open defect, these two technology all do not obtain engineering and promote.In par and dry season, river run-off is less, and major part river shoal is exposed, only has current at main stem. On the one hand, dry season river water quality is generally poor, and on the other hand, the current of dry season only contact with main stem, and hydraulic detention time is shorter, and the purification of water quality ability in river course can not get effective performance, and river can not get effective purification.
Ecological slope protection technology commonly used at present has various ways, as adopted earth working material aggregate species phytyl, wire gauze and rubble aggregate species phytyl, the solid soil species phytyl of earth working material, vegetation type eco-concrete, cement ecological planting matrix and soil-solidified-agent etc. that riverbank, side slope are carried out bank protection, stable bank slope structure there is better effects, and bank slope view has been carried out certain improvement, but the effect retaining source, face pollutants discharged into rivers is very limited, and cost is too high, carry out on the spot constructing and construction volume is also very big, promote the use of and be restricted.
Summary of the invention
This utility model is for the problem of existing river corridor restoration technology Yu river flood control functional requirement contradiction, a kind of riverway water quality purification and ecosystem restoration adjustable wetland technology are provided, this technology is by the river pollution treatment of each warehouse-in (or entering lake), ensure to enter the water quality of lake region, and the self-purification capacity in river can be improved, recovering the ecosystem in river, this technology both can realize the effective purification to river water quality, can ensure again the river course normal flood discharge in the flood season.
The purpose of the present invention can be reached by following measures:
A kind of micro-purification of water quality polluting warehouse-in (entering lake) river and ecological wetland repair system, this system includes waterpower self-control flag gate, artificial swamp and multi-stage stepwise artificial wetland protection slope, described waterpower self-control flag gate sets and is intercepted as upstream and downstream in river course, described artificial swamp is located in the river course of waterpower self-control flag gate upstream, and described multi-stage stepwise artificial wetland protection slope system is located on river course two bank slope of waterpower self-control flag gate upstream; Described multi-stage stepwise artificial wetland protection slope includes the sheet pile component being made up of non-fine concrete plate and stake, and this sheet pile component from arranging line upon line from high to low, is arranged adjacent two and is filled with filler planting plants between sheet pile component on river course bank slope; It is provided with waterproof interlayer in the bottom of described multi-stage stepwise artificial wetland protection slope, at non-fine concrete backboard, the side in river course is provided with anti-seepage geotextile; Being provided with at least one between adjacent two-stage stepwise artificial wetland protection slope makes water flow to the water distributing area of subordinate's level stepwise artificial wetland protection slope from higher level's stepwise artificial wetland protection slope.
It is provided with the sparge pipe connecting adjacent two-stage stepwise artificial wetland protection slope in described water distributing area, or the non-fine concrete plate in water distributing area is provided with breach or water-permeable pipe.
Non-fine concrete plate in sheet pile component vertical direction along the horizontal plane is arranged, and non-fine concrete plate is fixed on river course bank slope by the stake in sheet pile component. Multiple non-fine concrete plate left and right side in sheet pile component is connected and constitutes a campshed component identical with river course aspect; From bank slope top, river course to the river course water surface on the direction that river course is vertical, each row's sheet pile component is downward multistage stepped distribution. Filler between adjacent two row's sheet pile components, respectively planting soil (12), haydite (13) and coarse gravel from top to bottom.
Multi-stage stepwise artificial wetland protection slope system of the present utility model can poised stream bank slope, there is good water penetration simultaneously, rainfall runoff enters after Channel slope, by blending the mode of overflow under water distributing area, enters river course after system stepwise disposal.The a large amount of microorganisms of the fillers such as coarse gravel, haydite and planting soil and root system of plant superficial growth also form biomembrane, when rainfall runoff carries a large amount of pollutant entrance river course bank slope, solid suspension in runoff is filled and root system of plant stops and retains, and organic is removed by biomembranous absorption and assimilation, disassimilation; The transmission of oxygen is discharged by root system of plant, make about microenvironment occurs aerobic, anoxia and anaerobism phenomenon and alternate environment successively, hereby it is ensured that nitrogen, phosphorus in runoff water directly can not only be absorbed as nutrition by plant and microorganism, but also by nitrated, Denitrification and microorganism, the excess accumulation effect of phosphorus can be removed from runoff, reach to retain pollutant and enter purpose and the effect in river course; Water in river course, through this bank slope, also can obtain considerable degree of purification by said process.
Native system is by utilizing ecological revetment and ecological wetland method to repair river course polluted water body, so that COD, BOD, TP and TN content are substantially reduced.
Accompanying drawing explanation
Fig. 1 is river water and ecological wetland repair system plane graph.
Fig. 2 is multi-stage stepwise artificial wetland protection slope system profile.
Number in the figure: 1 is artificial swamp in river course, 2 is submerged plant, and 3 is multi-stage stepwise artificial wetland protection slope, 4 is non-fine concrete stake, and 5 is non-fine concrete plate, and 6 is emergent aquactic plant, 7 is multi-stage stepwise artificial wetland protection slope planting plants, and 8 is waterpower self-control flag gate basis, and 9 is waterpower self-control flag gate, 10 is anti-seepage geotextile, 11 is waterproof interlayer, and 12 is planting soil, and 13 is haydite, 14 is coarse gravel, and 15 is water distributing area.
Detailed description of the invention
Micro-purification of water quality polluting warehouse-in (entering lake) river of the present utility model and ecological wetland repair system include waterpower self-control flag gate, artificial swamp and multi-stage stepwise artificial wetland protection slope, waterpower self-control flag gate sets and is intercepted as upstream and downstream in river course, artificial swamp is located in the river course of waterpower self-control flag gate upstream, and described multi-stage stepwise artificial wetland protection slope system is located on river course two bank slope of waterpower self-control flag gate upstream; Described multi-stage stepwise artificial wetland protection slope includes the sheet pile component being made up of non-fine concrete plate and stake, and this sheet pile component from arranging line upon line from high to low, is arranged adjacent two and is filled with filler planting plants between sheet pile component on river course bank slope.
It is provided with waterproof interlayer in the bottom of multi-stage stepwise artificial wetland protection slope, at non-fine concrete backboard, the side in river course is provided with anti-seepage geotextile; Being provided with at least one between adjacent two-stage stepwise artificial wetland protection slope makes water flow to the water distributing area of subordinate's stepwise artificial wetland protection slope from higher level's stepwise artificial wetland protection slope. In water distributing area, it is provided with the sparge pipe connecting adjacent two-stage stepwise artificial wetland protection slope, or the non-fine concrete plate in water distributing area is provided with breach or water-permeable pipe. In every grade of water distributing area stepwise artificial wetland protection slope, the quantity of water distributing area can specifically adjust according to demand.
Non-fine concrete plate in sheet pile component vertical direction along the horizontal plane is arranged, and non-fine concrete plate is fixed on river course bank slope by the stake in sheet pile component. Multiple non-fine concrete plate left and right side in sheet pile component is connected and constitutes a campshed component identical with river course aspect; From bank slope top, river course to the river course water surface on the direction that river course is vertical, each row's sheet pile component is downward multistage stepped distribution.Filler between adjacent two row's sheet pile components, respectively planting soil (12), haydite (13) and coarse gravel from top to bottom.
First native system is build waterpower self-control flag gate on main stem, then is anchored on the dam foundation, it is possible to be automatically adjusted river level, in the formation water reserve, upstream of flag gate. Select in water reserve in annual 3-4 month that the water flows gently, the river course of bed mud more than thickness 20cm, is cut into the stem of about 10cm, as rice transplanting by waterweed, hornwort, black algae and p.malaianus, prop up with 3-4 and insert bed mud into one clump, density is 50 × 50cm, several different submerged plant interval plantations, and the limbs of these several submerged plants are soft, stem and leaf is elongated, washing away lower continuous swing at current, the resistance that current are produced is only small, does not affect the flood control capacity in river course. Selecting batch filter presses and shoal ecological region planting Arundo donax, again power in river course to spend and Herba Typhae in annual 3-4 month, propping up with 4-5 and plant into a Cong Jinhang, density is 50 × 50cm, several different emergent aquactic plant intervals plantations. This water reserve defines artificial swamp.
In par and dry season (annual April to June and JIUYUE to March next year), carry out water-retention by raising the height of flag gate, make river course upper pond level raise, to improve hydraulic detention time, improve treatment effect.
Abundance of water season (be usually June to JIUYUE), it is possible to being discharged water by the height of flag gate, thus avoiding river course flood is produced impact, river course mainly undertakes flood discharge function. Abundance of water season, owing to river discharge is abundant, substantially can flooding all submerged plants in artificial swamp, the purification of water quality ability of artificial swamp also can be not fully exerted.
Par season, when regulating artificial swamp hydraulic detention time 7-10 days, wetland entrance COD content average out to 38.7mg/L, wetland outlet COD content average out to 13.3mg/L, COD clearance is up to 65%. Dry season, when regulating artificial swamp hydraulic detention time 35-45 days, wetland entrance COD content average out to 67.7mg/L, wetland outlet COD content average out to 17.1mg/L, COD clearance is up to 74.7%.
The bank slope in river course squeezes into non-fine concrete stake by certain arrangement regulation, the both sides of non-fine concrete stake are fluted, non-fine concrete plate 5 vertical direction along the horizontal plane arranges nothing, the side of sand concrete plate embeds, opposite side embeds in the groove of another non-fine concrete stake, constitute non-fine concrete sheet pile component
Locate multiple non-fine concrete plate left and right side of same row to be connected and constitute a campshed component identical with river course aspect. From bank slope top, river course to the river course water surface on the direction that river course is vertical, each row's sheet pile component is downward multistage stepped distribution. Each row's sheet pile component bottom river course bank slope gradually upwards until the arrangement on top, slope; The one side of non-fine concrete backboard water arranges anti-seepage geotextile, stops water to pass through; Often placing filler between adjacent two row's non-fine concrete sheet pile components, filler is coarse gravel, haydite and planting soil from bottom to top, then planting plants in each row's plant growing district, the different plant such as planting submerged plant, emergent aquactic plant and land based vegetation can be planted from bottom to up successively, form the staged landscape effect of different plant.
Claims (5)
1. micro-purification of water quality polluting warehouse-in ingoing river and ecological wetland repair system, it is characterized in that this system includes waterpower self-control flag gate (9), artificial swamp (1) and multi-stage stepwise artificial wetland protection slope (3), described waterpower self-control flag gate (9) sets and is intercepted as upstream and downstream in river course, described artificial swamp (1) is located in the river course of waterpower self-control flag gate (9) upstream, and described multi-stage stepwise artificial wetland protection slope (3) is located on river course two bank slope of waterpower self-control flag gate (9) upstream;Described multi-stage stepwise artificial wetland protection slope (3) includes the sheet pile component being made up of non-fine concrete plate (5) and stake (4), this sheet pile component from arranging line upon line from high to low, is arranged adjacent two and is filled with filler planting plants between sheet pile component on river course bank slope; It is provided with waterproof interlayer (11) in the bottom of described multi-stage stepwise artificial wetland protection slope (3), the side in non-fine concrete plate (5) river course dorsad is provided with anti-seepage geotextile (10); Being provided with at least one between adjacent two-stage stepwise artificial wetland protection slope makes water flow to the water distributing area of subordinate's stepwise artificial wetland protection slope (15) from higher level's stepwise artificial wetland protection slope.
2. system according to claim 1, it is characterised in that be provided with the sparge pipe connecting adjacent two-stage stepwise artificial wetland protection slope in described water distributing area (15), or the non-fine concrete plate (5) in water distributing area (15) is provided with breach or water-permeable pipe.
3. system according to claim 1, it is characterised in that the vertical direction along the horizontal plane of the non-fine concrete plate (5) in described sheet pile component is arranged, and non-fine concrete plate (5) is fixed on river course bank slope by the stake (4) in sheet pile component.
4. system according to claim 1, it is characterised in that multiple non-fine concrete plate (5) left and right side in sheet pile component is connected and constitutes a campshed component identical with river course aspect; From bank slope top, river course to the river course water surface on the direction that river course is vertical, each row's sheet pile component is downward multistage stepped distribution.
5. system according to claim 1, it is characterised in that the filler between adjacent two row's sheet pile components, respectively planting soil (12), haydite (13) and coarse gravel (14) from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683703.9U CN205313193U (en) | 2015-09-06 | 2015-09-06 | System for purifying micro -polluted water flowing to reservoirs (lakes) and repairing ecological wetlands |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683703.9U CN205313193U (en) | 2015-09-06 | 2015-09-06 | System for purifying micro -polluted water flowing to reservoirs (lakes) and repairing ecological wetlands |
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| CN205313193U true CN205313193U (en) | 2016-06-15 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107473520A (en) * | 2017-08-31 | 2017-12-15 | 天津市水利科学研究院 | With reference to a kind of process of coagulation cyclone filter and multidimensional charge for remittance wetland |
| CN108975623A (en) * | 2018-08-15 | 2018-12-11 | 天津大学 | Staged river waterfront wetland filtration system based on sponge city |
| CN110127851A (en) * | 2019-05-29 | 2019-08-16 | 天津大学 | A kind of annular landscape Water warfare artificial wet land system using eco-concrete |
| 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 |
| CN111139784A (en) * | 2020-01-17 | 2020-05-12 | 徐州工程学院 | Point source pollution enhanced retention and purification artificial wetland system at lake inlet and lake outlet |
| CN112147293A (en) * | 2020-09-29 | 2020-12-29 | 广西壮族自治区水利科学研究院 | Testing device and testing method for plant-growing concrete purified sewage |
| CN112279449A (en) * | 2019-07-23 | 2021-01-29 | 中国海洋大学 | Buried type synchronous river sewage treatment and ecological bank protection structure |
| CN114457756A (en) * | 2022-02-28 | 2022-05-10 | 河南省海绵城市建设有限公司 | Ecological river course bank protection of polyurethane and rain sewage filtration purification system |
| CN115745190A (en) * | 2022-12-13 | 2023-03-07 | 重庆大学 | Stepped landscape artificial wetland |
| CN116768425A (en) * | 2023-08-15 | 2023-09-19 | 江苏龙腾工程设计股份有限公司 | Ecological wetland system for rural environment lifting |
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- 2015-09-06 CN CN201520683703.9U patent/CN205313193U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107473520A (en) * | 2017-08-31 | 2017-12-15 | 天津市水利科学研究院 | With reference to a kind of process of coagulation cyclone filter and multidimensional charge for remittance wetland |
| CN108975623A (en) * | 2018-08-15 | 2018-12-11 | 天津大学 | Staged river waterfront wetland filtration system based on sponge city |
| CN110127851A (en) * | 2019-05-29 | 2019-08-16 | 天津大学 | A kind of annular landscape Water warfare artificial wet land system using eco-concrete |
| CN112279449A (en) * | 2019-07-23 | 2021-01-29 | 中国海洋大学 | Buried type synchronous river sewage treatment and ecological bank protection structure |
| 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 |
| CN111139784A (en) * | 2020-01-17 | 2020-05-12 | 徐州工程学院 | Point source pollution enhanced retention and purification artificial wetland system at lake inlet and lake outlet |
| CN112147293A (en) * | 2020-09-29 | 2020-12-29 | 广西壮族自治区水利科学研究院 | Testing device and testing method for plant-growing concrete purified sewage |
| CN114457756A (en) * | 2022-02-28 | 2022-05-10 | 河南省海绵城市建设有限公司 | Ecological river course bank protection of polyurethane and rain sewage filtration purification system |
| CN115745190A (en) * | 2022-12-13 | 2023-03-07 | 重庆大学 | Stepped landscape artificial wetland |
| CN116768425A (en) * | 2023-08-15 | 2023-09-19 | 江苏龙腾工程设计股份有限公司 | Ecological wetland system for rural environment lifting |
| CN116768425B (en) * | 2023-08-15 | 2023-11-03 | 江苏龙腾工程设计股份有限公司 | Ecological wetland system for rural environment lifting |
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