CN108689484A - A kind of lake floating purifying island - Google Patents

A kind of lake floating purifying island Download PDF

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Publication number
CN108689484A
CN108689484A CN201810746971.9A CN201810746971A CN108689484A CN 108689484 A CN108689484 A CN 108689484A CN 201810746971 A CN201810746971 A CN 201810746971A CN 108689484 A CN108689484 A CN 108689484A
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CN
China
Prior art keywords
island
water
floating
purifying
floats
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CN201810746971.9A
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Chinese (zh)
Inventor
杨希贤
丁业全
李万保
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Foshan Environmental Protection Technology Co Ltd
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Foshan Environmental Protection Technology Co Ltd
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Priority to CN201810746971.9A priority Critical patent/CN108689484A/en
Publication of CN108689484A publication Critical patent/CN108689484A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/08—Aerobic processes using moving contact bodies
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower, fuel cells
    • 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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  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The purpose of the present invention is to provide a kind of lakes to float purifying island.The floating purifying island has the overall merit that the strain bioremediation technology that adds, addition nutrients recovery technique and artificial aeration strengthen water body bioremediation technology, conducive to the using energy source of the Nature, being converted into electric energy using solar energy pushes Aeration fan to be oxygenated polluted-water, the biologic packing material of setting covers with aerobic simultaneously, facultative aerobic character microorganism carries out oxidative degradation using dissolved oxygen to the organic pollution in water body, achievees the purpose that strengthen and eliminates water pollution.

Description

A kind of lake floating purifying island
Technical field
The present invention relates to ecological restoration of lakes fields, and in particular to a kind of lake floating purifying island.
Background technology
Black and odorous water is the environmental products that most of industrialization of the country developing stage generates.Developed countries are in industry Change, in urbanization process, black smelly, the water pollution phenomenon of urban water-body also occurred, 20th century mid-term can be traced back to earliest Britain Times river, in the 1970s, the Rhine of Germany, water body blacks, is smelly.In recent years, with China's urban economy Fast development, the increasingly expansion of city size, urban environment infrastructure is increasingly insufficient, and urban wastewater discharge constantly increases Add, a large amount of pollutants enter river;Some urban water-bodies especially Small Urban water body is directly becoming industry, agricultural and life simultaneously The primary discharge channel and place of sewage living, COD in water body(COD), ammonia nitrogen(NH3-N), phosphorus(P)It is exceeded, river water Body pollution is serious, and water body occurs seasonal or black throughout the year smelly.
Foundation"City black and odorous water renovation guide", by 2 16th, 2016, national 295 ground levels and with In upper city, black and odorous water is investigated out in 218 cities, and the black and odorous water sum assert is 1861, and wherein river quantity accounts for Than highest, totally 1595, up to 85.7%, overall length is about 5596km (data sources:It firmly builds portion and Chinese Ministry of Environmental Protection's joint announces the first round National black and odorous water, which is known the real situation, investigates result).In terms of black and odorous water Regional Distribution situation, the more central and east of economically developed and water system The black and odorous water quantity accounting in area is larger, and Central-South region and East China add up to accounting up to 71%.In terms of province, Guangdong, Anhui Quantity adds up to accounting nearly 1/4 more than 200;In addition, Jiangsu, Henan, Shandong, Hunan, 5 province's quantity of Hubei 100 with On, add up to accounting 1/3.
China's water pollution administration idea and technology all compare lag relatively.In continuous exploration in nearly 30 years, state is used for reference Outer water body regulation and managerial experiences, China's water pollution control focus on water resources development, water body safety with experience is administered from simple Function is to administering water body environment, safeguarding landscape diversity, to three developing stage such as water ecosystem are focused the consruction on, accordingly Water body treating technology is also evolving.Currently, the recovery technique to polluted-water mainly has:Chemical method(Enhanced flocculation agent is killed Algae medicament etc.), Physical(Artificial aeration's reoxygenation), biology and ecological method(Plant purification technology:Artificial swamp, ecological revetment, people Work chinampa, microorganism enhanced technology, biofilm, biological grid recovery technique etc.)The most widely used at this stage is that plant is net The application of change technology.Currently used several recovery techniques are analyzed below:
One, strain bioremediation technology is added
The improvement that strain originates from petroleum pollution in ocean is added into water body.Efficient degreasing is may separate out in petroleum-polluted water body Bacterial strain, these bacterial strains can be made into the life of biological agent Yu Haiyang and fresh water organic contamination after domestication, enrichment, screening, culture Object reparation.
The advantages of adding strain bioremediation technology:
1, reliability is high.It can be directed to the property of pollutant, orientation cultivation is taken, add, effective degradation of contaminant.
2, speed is fast.A large amount of high activity strains can be added in a short time, and rapid degradation of contaminant restores water quality.
3, not by season Water Temperature.The type for adding strain can be adjusted according to water temperature, such as:High temperature modification thermophilus strain, it Have maximum growth rate within the scope of 60~80 DEG C;Psychrophile strain can at 0 DEG C of even lower temperature growth and breeding, normal temperature type Bacterial strain is even more as many as stars.
4, lasting effect is good.In water body strain can self-reproduction, maintain certain strain concentration, sustaining degradation pollutant.
5, different from flocculation sediment technology, when microbial degradation pollutant, will not occur flocculation sediment restorative procedure and be formed Secondary pollution problem.
The shortcomings that adding strain bioremediation technology:
1, nutrients is required supplementation with, the phenomenon of the nutritional ingredient deficiency of polluted-water is made up.
2, the dissolved oxygen of polluted-water is relatively low, and additional increase aerating system complement lysis oxygen is needed when serious.
3, certain operating cost is needed.
Two, nutrients recovery technique is added
Addition nutrients recovery technique plays the role of water remediation to play an active part in reparation.Major product has the battalion of water remediation It supports agent, stimulant or surfactant and pollutant reduces agent.Pollutant reduces agent in addition to comprising microorganism formulation, also contains Nutritional agents(The mixture of carbon source, nitrogen source, phosphorus source), film forming agent(For increasing oil/water interface, bioavailability is improved), can For repairing by the water body of the pollutions such as oil, diesel oil, gasoline.In addition also have for by nitroorganic compound, halogenated hydrocarbons, pentachloro- The bioenergizer of the pollution waters restorations such as phenol (PCP) and heavy metal.Bioenergizer includes mainly one kind from deposit The reducing agent of extraction, this reducing agent usually there is the higher content of organic matter to be reduced by being exposed to oxygen or air Pollutant can then be oxidized to the product nontoxic to environment.In the application, this bioenergizer can be applied to receive The original position of machine object polluted-water or interval repair process.
The advantages of adding nutrients recovery technique:
1, with obvious effects.After adding nutrients, the activity of microorganism and the energy of degradation of contaminant in polluted-water can be improved Power.
2, accelerate pollution amelioration speed.After adding nutrients, the activity of microorganism is not only increased, also adds micro- life The pollution degradation pathway of object Co metabolism, can degrade rapidly pollutant difficult to degrade in a short time, restore water quality.
3, controllability is preferable, the additive amount of nutrients can be adjusted according to the reparation situation of water body and addition is formulated, change is repaiied The type of complex velocity or degradation of contaminant.
4, lasting effect is good.It can be added as required nutrients, so that strain in water body is kept self-reproduction, maintain certain bacterium Kind concentration, sustaining degradation pollutant.
5, different from flocculation sediment technology, the method that addition nutrients maintains microbial degradation pollutant will not flocculate Precipitation restorative procedure is formed by secondary pollution problem.
The shortcomings that adding strain bioremediation technology:
1, nutrients is required supplementation with, the phenomenon of the nutritional ingredient deficiency of polluted-water is made up.
2, the dissolved oxygen of polluted-water is relatively low, and additional increase aerating system complement lysis oxygen is needed when serious.
3, certain operating cost is needed.
Three, artificial aeration strengthens water body bioremediation technology
The technique functions that the biological prosthetic ability of water pollution is improved using artificial-strengthening aeration mode are derived from modern industry sewage disposal Technology.When all kinds of high concentrations, high sewage difficult to degrade have obtained good processing in modern industry sewage treatment field, reach Satisfactory results.And can sewage disposal system be smoothed out, depend greatly in water body whether have it is enough Dissolved oxygen(DO).Currently, domestic prosperity province, city go out huge fund and have been set up river water body pollution amelioration engineering in partial rivers, Although repairing effect is good, the operating cost of project is local province, a huge burden in city's expenditure.
Artificial aeration strengthens the advantages of water body bioremediation technology:
1, contaminant degradation speed is fast, transitory efficient, and the reparation of polluted-water is rapidly completed.
2, reliability it is very high, without adding specified strain, control aeration time period can reach anaerobism, anoxic, aerobic Sewage treatment process.
3, it can be directed to the property of pollutant, orientation cultivation is taken, add, effective degradation of contaminant.
4, have the characteristics that add strain bioremediation technology various.
Artificial aeration strengthens the shortcomings that water body bioremediation technology:
1, it needs to put into a large amount of energy and be aerated, typically use power type roots blower as the equipment of aeration, it is electric Consume surprising, operating cost height.
2, mating power supply, automatically controlled construction investment are huge, very along the cable of river long-distance sand transport, transformer investment cost It is high.And in large-size lake carries out region rotation reparation state, the fund input higher of power Transmission.
3, province, city's electricity consumption quota are occupied, restriction is brought to province, city's economic development.
4, after stopping artificial aeration, in the of short duration time, the water quality of polluted water region deteriorates to original level again.Therefore, people Work aeration is efficient, and effect is good, but when energy consumption problem cannot solve, also can only be as a kind of mitigation strategy of river restoreration and auxiliary Assistant's section.
Five, phytoremediation technology
The plant that selection plantation is strong to pollutant absorbability in polluted-water, tolerance is good, the bio-absorbable of appliable plant And root zone repair mechanisms(The synergy of plant-microorganism)Pollutant is removed from pollution environment or is consolidated pollutant It is fixed, certain element is extracted and concentrated in the environment using plant to remove pollutant, or contaminant degradation is made to be nonhazardous Process, to achieve the purpose that repair water body.Currently, " ecological floating island ", " artificial floating island " in pollution waters restoration field, The platymiscium such as " artificial floating rafts ", " biologic float bed ", " floating bed soilless culture ", " lawn soilless ecoscape chinampa " is repaiied Multiple technology scope.
The advantages of phytoremediation technology:
1, Selective repair ability is strong, can be different according to the pollutant in polluted-water, and selective planting aquatic plants absorb water In pollutant, achieve the purpose that absorption, eliminate pollutant.
2, rehabilitation expense is low, and after project construction initial stage input, the administration fee in repair process is very low.
3, landscaping effect is good, and preprosthetic pollution stench waters becomes water plant the flowers are in blossom cluster cluster, the scape that clear wave ripples It sees.
4, better than other repair mode effects to the pollutants such as heavy metal, N, P, relative cost is low.
5, zooplankter and fish are put in cooperation in a suitable place to breed, you can play the role of reducing algae reparation water body.
6, notable to the regulation effect of residues of banned pesticides, polycyclic aromatic hydrocarbon and nitroaromatic.And TNT pollutants are carried out When phytoremediation, energy consumption is very low even without energy consumption, has reached green safe, will not cause secondary pollution.
The shortcomings that phytoremediation technology:
1, the speed of growth is slow, and purification efficiency is low.
2, can as river, lake cleaning water plant it is less, selective plant variety face is relatively narrow.
3, it is easily influenced by pest and disease damage, sprays insecticide and increase administration fee, meanwhile, pesticide can pollute the water body for needing to purify.
4, larger by seasonal effect, winter promotes by regional impact, and purification efficiency is greatly reduced.
5, autumn plant is withered, needs manually to cut off dead leaf, deadwood, and labor intensity is high and inconvenient for operation.
If 6, gathered in not in time, the heavy metal of plant absorption can dissolve out a part of recontamination water after rotting in winter Body.
Invention content
In order to solve the disadvantage that the technology and shortcoming of above-mentioned existing reparation, the present invention provides a kind of novel lakes Float purifying island, the floating purifying island have the strain bioremediation technology that adds, add nutrients recovery technique and Artificial aeration strengthens the overall merit of water body bioremediation technology, is conducive to the using energy source of the Nature, is converted into using solar energy Electric energy pushes Aeration fan to be oxygenated polluted-water, while the biologic packing material being arranged covers with aerobic, facultative aerobic character microorganism utilizes Dissolved oxygen carries out oxidative degradation to the organic pollution in water body, achievees the purpose that strengthen and eliminates water pollution.
The technical solution adopted by the present invention to solve the technical problems is:A kind of lake floating purifying island, including drift are provided Chinampa, solar panel, solar panel pedestal, be coupled screw rod, wind turbine pedestal, wind turbine, be coupled tracheae, aeration pipe network, Aeration head, filler hanger, hoist cable, biologic packing material, positioning connection rope;The solar panel is fixed on solar panel base On seat, floating island is hollow structure, and wind turbine is located on the wind turbine pedestal inside floating island, and solar panel power generation pushes wind turbine Air-blowing passes to the aeration pipe network in water after air is compressed by coupling tracheae, and aeration pipe network is supplied to aeration head, passes through aeration Head is oxygenated the biologic packing material being suspended below floating island, using the microorganism being grown in above filler to the pollution in water Object carries out oxidative degradation, is decomposed into the innocuous substances such as simple water, carbon dioxide;Positioning connection rope is provided with below floating island, Three is fixed by a screw connection through solar panel pedestal, floating island and positioning connection rope, positioning connection It is provided with filler hanger below rope, hoist cable is connected on filler hanger, biologic packing material is suspended on hoist cable, under positioning connection rope and its The filler hanger connection of side.
Beneficial effects of the present invention are:
1, microbiological treatment pollution have very strong advantage, every kilogram by aerobic microorganism, facultative aerobic character microorganism group at work Property sludge can degrade the organic pollution of 0.5 ~ 2.5kg daily.The activated sludge concentration one being grown on life assemblage filler As in 0.5 ~ 2.5kg/m3, 5.0 ~ 12kg/m can be reached on the biologic packing material in some sewage disposal systems3, single to float Purifying island configures 0.8m3Combination type biological filler, each float calculate on the biologic packing material that purifying island carries according to low value The activated sludge of 0.4 ~ 2.0kg can be grown.Having in the time of sunlight, it is single float purifying island can degrade within one day 0.2 ~ The organic pollution of 4.0kg can obtain good reparation result in a short time.
2, floating purifying island directly converts electric energy by solar energy and is supplied for wind turbine because itself being configured with solar energy aeration system Oxygen saves energy consumption.
3, in the water surface, floating purifying island oneself can form matrix, and it is multiple can also to be spaced the formation combination of insertion plant chinampa Mould assembly plant/microbial cleaning matrix purifies water body, meanwhile, the matrix of the water surface can also pacify with river, lake bank The solar power plant of dress coordinates, and floating purifying island is assisted to carry out strengthened purification function, sufficient aeration quantity and equipped in water When electric heating function, it will more quickly finish polluted water purification requirement.
Description of the drawings
Fig. 1 is the structural schematic diagram that lake of the present invention floats purifying island;
In the figures above:1. floating island, 2. solar panels, 3. solar panel pedestals, 4. screw connections, 5. wind turbines Pedestal, 6. wind turbines, 7. connection tracheaes, 8. aeration pipe networks, 9. aeration heads, 10. filler hangers, 11. hoist cables, 12. biologic packing materials, 13. positioning connection rope.
Specific implementation mode
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete Ground describes, it is clear that described embodiment is only the embodiment of a portion of the present invention, and its object is to allow art technology Personnel can understand present disclosure and accordingly to implement, and can not be limited the scope of the invention with this.All bases Equivalent change or modification made by essence of the present invention should be all covered by within protection scope of the present invention.
Embodiment 1
As shown in Fig. 1, a kind of lake floats purifying island, including floating island 1, solar panel 2, solar panel pedestal 3, screw connection 4, wind turbine pedestal 5, wind turbine 6, connection tracheae 7, aeration pipe network 8, aeration head 9, filler hanger 10, hoist cable 11, life Object filler 12, positioning connection rope 13;The solar panel 2 is fixed on solar panel pedestal 3, during floating island 1 is Hollow structure, wind turbine 6 are located on the wind turbine pedestal 5 inside floating island, and the power generation of solar panel 2 pushes 6 air-blowing of wind turbine, air The aeration pipe network 8 in water is passed to by coupling tracheae 7 after compression, aeration pipe network 8 is supplied to aeration head 9, by aeration head 9 to outstanding It hangs over the biologic packing material 12 below floating island 1 to be oxygenated, using the microorganism being grown in above filler to the pollutant in water Oxidative degradation is carried out, the innocuous substances such as simple water, carbon dioxide are decomposed into;1 lower section of floating island is provided with positioning connection rope 13, Three is fixed by a screw connection 4 through solar panel pedestal 3, floating island 1 and positioning connection rope 13, is positioned 13 lower section of connection rope is provided with filler hanger 10, and hoist cable 11 is connected on filler hanger 10, and biologic packing material 12 is suspended on hoist cable 11, Positioning connection rope 13 couples with filler hanger 10 below.

Claims (7)

1. a kind of lake floats purifying island, which is characterized in that including floating island, solar panel, solar panel pedestal, Screw connection, wind turbine pedestal, wind turbine, connection tracheae, aeration pipe network, aeration head, filler hanger, hoist cable, biologic packing material, positioning connection Connect rope;The solar panel is fixed on solar panel pedestal, and floating island is hollow structure, and wind turbine is located at floating island On internal wind turbine pedestal, solar panel power generation pushes wind turbine air-blowing, and water is passed to by coupling tracheae after air is compressed In aeration pipe network, aeration pipe network supplies to aeration head, carried out by aeration head to being suspended on biologic packing material below floating island Oxygenation carries out oxidative degradation to the pollutant in water using the microorganism being grown in above filler, is decomposed into simple water, dioxy Change the innocuous substances such as carbon;Positioning connection rope is provided with below floating island, by one through solar panel pedestal, floating island Three is fixed with the screw connection of positioning connection rope, filler hanger is provided with below positioning connection rope, is connected on filler hanger Hoist cable, biologic packing material are suspended on hoist cable, and positioning connection rope couples with filler hanger below.
2. a kind of lake according to claim 1 floats purifying island, which is characterized in that the biologic packing material is by aerobic Microorganism, facultative aerobic character microorganism group at activated sludge.
3. a kind of lake according to claim 2 floats purifying island, which is characterized in that the activated sludge it is a concentration of 0.5~2.5Kg/m3, preferred concentration is 5.0 ~ 12Kg/m3。
4. a kind of lake according to claim 1 or 2 floats purifying island, which is characterized in that single floating purifying island is prepared 0.8m3Biologic packing material.
5. a kind of lake according to claim 1 or 2 floats purifying island, which is characterized in that in the water surface, floating purifying island can It is used alone or oneself forms matrix, or interval is inserted into plant chinampa and forms combination composite plant/microbial cleaning matrix pair Water body is purified.
6. a kind of lake according to claim 1 or 2 floats purifying island, which is characterized in that lake bank can install the sun Energy power station and floating purifying island cooperation, assist its to carry out strengthened purification function.
7. a kind of lake according to claim 1 or 2 floats purifying island, which is characterized in that electrical heating work(in water can be equipped with It can so that the floating purifying island more quickly finishes polluted water purification requirement.
CN201810746971.9A 2018-07-09 2018-07-09 A kind of lake floating purifying island Pending CN108689484A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111099719A (en) * 2020-01-13 2020-05-05 杭州珊瑚环境科技有限公司 Structure applied to reduction of endogenous pollution of water body and preparation process thereof
CN116969608A (en) * 2023-08-03 2023-10-31 安徽静东生态科技有限公司 Low-carbon green energy microecological coupling reactor and water body purifying system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203402957U (en) * 2013-08-16 2014-01-22 上海在田环境科技有限公司 Wind energy purification floating island for water ecological restoration
CN105016474A (en) * 2015-07-02 2015-11-04 北京师范大学 Electrochemical biological floating island used for purifying persistent pollutant in city water body
CN206232485U (en) * 2016-08-12 2017-06-09 中科宇图科技股份有限公司 A kind of combined artificial chinampa water treatment facilities based on the micro-nano aeration of solar energy
CN106986458A (en) * 2017-04-14 2017-07-28 北京化工大学 A kind of solar-energy ecological chinampa and Water Ecological Recovery method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203402957U (en) * 2013-08-16 2014-01-22 上海在田环境科技有限公司 Wind energy purification floating island for water ecological restoration
CN105016474A (en) * 2015-07-02 2015-11-04 北京师范大学 Electrochemical biological floating island used for purifying persistent pollutant in city water body
CN206232485U (en) * 2016-08-12 2017-06-09 中科宇图科技股份有限公司 A kind of combined artificial chinampa water treatment facilities based on the micro-nano aeration of solar energy
CN106986458A (en) * 2017-04-14 2017-07-28 北京化工大学 A kind of solar-energy ecological chinampa and Water Ecological Recovery method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111099719A (en) * 2020-01-13 2020-05-05 杭州珊瑚环境科技有限公司 Structure applied to reduction of endogenous pollution of water body and preparation process thereof
CN116969608A (en) * 2023-08-03 2023-10-31 安徽静东生态科技有限公司 Low-carbon green energy microecological coupling reactor and water body purifying system
CN116969608B (en) * 2023-08-03 2024-02-13 安徽静东生态科技有限公司 Low-carbon green energy microecological coupling reactor and water body purifying system

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Application publication date: 20181023