CN109095614A - The biological floating bed and its matrix and preparation method prepared by biomass carbon source - Google Patents
The biological floating bed and its matrix and preparation method prepared by biomass carbon source Download PDFInfo
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- CN109095614A CN109095614A CN201810689703.8A CN201810689703A CN109095614A CN 109095614 A CN109095614 A CN 109095614A CN 201810689703 A CN201810689703 A CN 201810689703A CN 109095614 A CN109095614 A CN 109095614A
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/027—Pots connected in horizontal rows
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/029—Receptacles for seedlings
- A01G9/0295—Units comprising two or more connected receptacles
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/029—Receptacles for seedlings
- A01G9/0297—Grids for supporting several receptacles
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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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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Abstract
The biological floating bed and its matrix and preparation method that the invention discloses a kind of to be prepared by biomass carbon source.The present invention improves traditional biological floating bed matrix.Processing is modified to biomass carbon using polypropylene and polyacrylamide.Matrix bulk strength and durability of the present invention are more excellent, and biofilm situation is preferable, and biofilm rate is higher, and in practical applications, this biomass matrix can be as the raw material that carbon source is sustained and as the carrier of microorganism colonization in floating bed matrix.The biological floating bed of the carry matrix has preferable treatment effect for low ratio of carbon to ammonium water body.The present invention had not only solved the intractable problem of biomass castoff, but also can be handled low ratio of carbon to ammonium river water using its good bioaffinity, was a kind of improvement to current biological floating bed matrix.
Description
Technical field
The present invention relates to biological floating bed and agricultural non-point source pollution field more particularly to the later uses of agricultural wastes straw
The method of river wastewater is handled as biological floating bed matrix.
Background technique
Due to long-term urbanization and industrialization, at present China be more than 60% river, lake and wetlands ecosystems knot
Structure and function are by different degrees of destruction and influence, although carrying out many river regulations and water remediation engineering, water quality is disliked
The trend of change does not obtain the containment of essence, and water eutrophication problem still brings serious shadow to the production and living of resident
It rings.Effective ways one of of the biological floating bed technology as river training eutrophication water, utilize the collaboration of plant and microorganism
Effect is gone down except pollutants such as water body nitrogen, phosphorus, organic matters, to achieve the purpose that purifying eutrophication water body.Biological floating bed tool
Have the advantages that operation is easy, cheap, make full use of water nutrition object and beautification of landscape.Traditional Ecological floating bed technology is to pass through
The processes such as biomembrane metabolism, plant assimilating absorption and the water body oxygenation of root system of plant attachment reach nitrogen, the phosphorus cut down in water
And the purpose of organic matter etc..Using cystosepiment, bamboo raft Bulk flotation in water surface material as plant growth support and group builds up ecology
Floating bed.Plant is biological floating bed key component, it not only decides effects of purification quality, but also is that the water surface makes scape implementation body.
Deficiency existing for Traditional Ecological floating bed include: 1. root system of plant be suspended in water body and can not obtain enough micro members from bed mud
Element and influence its growth result；Or the root system to suspend is easy to be swallowed by grass eating animal in water body；After 2. low undertemperature plants is withered
For entire biological floating bed system without any clean-up effect, What is more can generate secondary pollution；3. merely with a small amount of on root system of plant
Biomembrane and it is plant assimilating effect so that floating bed clean-up effect is relatively low.4. biomass is limited, goes to nutrients such as nitrogen phosphorus
Except being difficult to further increase.Biological floating bed pollution is only realized by root system of plant and plant assimilating absorption because traditional
The removal of object, and the amount of root system of plant microorganism and plant assimilating pollutant is extremely limited.How to improve biological floating bed net
Change effect and plant growth characteristics are one of the urgent problems for improving biological floating bed clean-up effect.
It is added in biological floating bed system using artificial synthesized carrier or inorganic carrier as matrix, helps to strengthen ecological floating
The bio-diversity and biomass of bed system are also beneficial to improve the purification efficiency of floating bed system.Zhou little Hong passes through floating to ecology
Bed field strength measurement discovery, combined biological floating bed biomass and ecological radiation field intensity want significantly higher more.Clean group of model et al. exists
Zeolite filler is added in biological floating bed system, so that the biological floating bed removal rate to nitrogen pollutant improves to a certain extent.But
It is that there is the property (microorganism inert material) being not readily biodegradable using these carriers as floating bed matrix, to improvement water body
It lacks carbon status and does not help (eutrophication water shows as low C/N than water body), and microorganism inert material is unfavorable for biology
The enrichment of biofilm and biomass.Therefore some novel eutrophication waters (low C/N is than water body) that are suitable for are researched and developed to repair
Multiple material is to biological floating bed exploitation and develops with highly important value.
In summary, there is no good Improving Measurements, biological floating bed matrix material for biological floating bed treatment effeciency at present
Also mostly using carriers such as traditional sponge, cocoanut fiber, polyethylene, haydites, hydrophily and biology are affine for the selection of material
Property it is poor, be difficult to meet the condition of biofilm during river ecological floating bed longtime running and microorganism growth.Therefore, how to tie
System agricultural industry substance cycle specificity is closed, biological floating bed novel biomass matrix is developed, guarantees its hydrophily and biology parent
With the advantage of property, and the fugitiveness defect of biomass carrier is overcome, reach the treatment of wastes with processes of wastes against one another, this is to biological floating bed technical treatment
The key of low ratio of carbon to ammonium river water.In this patent, selection is served as using biomass carbon prepared by agricultural wastes as core material
Matrix it is biological floating bed, not only realize the resource utilization of agricultural wastes, while the ecology that water body is also greatly facilitated is repaired
Multiple and beautification of landscape.Using the landscapes such as canna water plant as floating bed plant, make by floating bed carrier matrix of the biomass matrix
For the research object of experiment, effect and the spy of the plant ecological floating bed purifying contaminated water body of the different substrates in static experiment are probed into
Property, beneficial reference is provided for the building of novel ecological floating bed and the exploitation of New-type matrix material.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to matrix (sponge, cocoanut fiber, the polyethylene of Traditional Ecological floating bed
The carriers such as foam, haydite) treatment effect it is bad and traditional biological floating bed matrix is improved, provide a kind of as ecology
The preparation method of the environmentally friendly improvement biomass carrier of floating bed matrix.The purpose of the present invention is make the biomass matrix in reality
Energy stable operation in the biological floating bed application on border, including its intensity and durability meet service requirement, and biofilm works well, can
As the raw material of carbon source sustained release, but can as the carrier of microorganism colonization in floating bed matrix, in low ratio of carbon to ammonium river water acquirement compared with
Good denitrification effect.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of preparation method of the biological floating bed matrix prepared by biomass carbon source, the specific steps are as follows:
Polypropylene is uniformly mixed with biomass carbon, is put into polyacrylamide solution and impregnates, be then placed in baking oven and dry
Roasting carries out functional group modification；It is modified that second of baking is carried out by matrix compression moulding, after molding, matrix finished product is made.
Preferably, the mass ratio that the polypropylene is mixed with biomass carbon is 3:7.
Preferably, the concentration of polyacrylamide solution is 1mg/L, and polypropylene and biomass are in polyacrylamide solution
Middle immersion 2h.
Preferably, when carrying out functional group modification, oven temperature is 120 DEG C, bakes 2h.
Pressing pressure when preferably, by matrix compression moulding is 50MPa.
Preferably, it when carrying out second of baking, is carried out in 170 DEG C of Muffle furnace, bakes 2h.
Another object of the present invention is to provide a kind of biological floating bed matrix such as above method preparation.
Another object of the present invention is to provide a kind of biological floating bed, including floating body and floating bed framework, floating body are fixed on floating
In bed framework, for making biological floating bed entirety float on the water surface；Several planting pots are placed in the floating bed framework, very
Water planting is in planting pot；It is hung with the string bag below each planting pot, is filled with above-mentioned biological floating bed base in the string bag
Matter, and the root system of emergent aquactic plant is contacted with the biological floating bed matrix in the string bag.
Preferably, below each planting pot on be sequentially hung with a more dry string bags down.
Preferably, the emergent aquactic plant is canna glauca, Lythrum salicaria, mushroom grass or thaliadeabata.
Preferably, the floating body is PPR pipe.
The present invention in terms of existing technologies, has the advantages that
(1) biomass carbon can adsorb the substances such as heavy metal, organic matter, nitrogen phosphorus in water, improve pollutant and plant roots
The exposure concentration in portion；
(2) biomass carbon is loose porous, provides huge attachment space for microorganism, increases biological floating bed mechanism unit
The value volume and range of product of middle microorganism improves the removal ability to pollutant；
(3) biomass carbon contains certain microelement and organic substance, and the ability with retain water and nutrients can promote to plant
The growth of object；
(4) Later growth root system of plant is pierced by plant growing pot and touches biomass matrix, and root system of plant can be from this time
Organic matter and ion, and the carbon source that can be released using biomass carbon are absorbed in water body, forming biomembrane by root system will be dirty
Object is contaminated to absorb, convert.
(5) simultaneously because the addition of high polymer, can be enhanced caking property, the intensity of matrix, can also extend the use of matrix
Time, and matrix biofilm situation is preferable, biofilm rate is higher.
The modification of (6) two kinds of high polymers and thermoplastic setting make finished product become sturdy and durable and be unlikely to carbonize completely, pass through
After crossing high pressure and thermoplastic processing, base portion charing, releasing carbon effect can be slower and lasting.
Matrix of the invention is taken from the byproduct biomass carbon of agricultural wastes, and uses polypropylene and polyacrylamide
The characteristics of being modified, its hydrophily and bioaffinity be utilized；The characteristics of being recycled using system agricultural industry substance is reached with useless
Control useless purpose；Matrix of the invention can be as the raw material that carbon source is sustained and as microorganism colonization in floating bed matrix
Carrier；Matrix of the invention and water plant collocation are appropriate, achieve good effect in the river water denitrogenation of low ratio of carbon to ammonium.
Detailed description of the invention
Fig. 1 is the XRD spectrum of biomass carbon of the present invention before modified；
Fig. 2 is biomass carbon polypropylene of the present invention and the modified XRD spectrum of polyacrylamide；
Fig. 3 is that (solid line is porosity in figure, and dotted line is strong for the relationship of carrier porosity and intensity and biomass carbon content
Degree)；
Fig. 4 is environmentally friendly biomass carrier compared with the microorganism colonization rate of common biomass carbon；
Fig. 5 is that matrix of the present invention is applied to biological floating bed layout drawing；In figure: floating bed framework 1, floating body 2, planting pot 3, net
Pocket 4, emergent aquactic plant 5；
Fig. 6 is the effect picture that matrix of the present invention removes water body total nitrogen compared with traditional sponge carrier, pure stalk；
Fig. 7 is the effect picture that matrix of the present invention removes water body ammonia nitrogen compared with traditional sponge carrier, pure stalk.
Specific embodiment
The content of present invention is described further with example with reference to the accompanying drawing, but is not limitation of the invention.
Embodiment 1: environmentally friendly biomass carrier preparation
In the present embodiment, it is fired into biomass carbon using raw material stalk, then straw biomass charcoal is modified again,
Environmentally friendly biomass high-area carbon is obtained, the biological floating bed matrix which can be used as.Agricultural wastes straw is fired
Obtained biomass carbon uses following two organics modifications: 1. 2. polyacrylamide, environmentally friendly biomass carry polypropylene
Body specific the preparation method is as follows:
Biomass carbon is modified: polypropylene and biomass carbon mixed in proportion,.In the present embodiment, while being arranged 8
The test group of a different mixing proportion, in mixture the mass percent of biomass carbon be respectively 50%, 55%, 60%, 65%,
70%, 75%, 80%, 85%.For each test group, the mixture of polypropylene and biomass carbon is put into 1mg/L's respectively
2h is impregnated in polyacrylamide solution, is then placed in 120 DEG C of baking oven and bakes 2h, carries out functional group modification
Finished product preparation: taking out modified biomass carbon, by biomass carbon matrix compression moulding under the pressure of 50MPa,
And it is baked 2 hours under 170 DEG C of furnace temperature of controllable temperature Muffle furnace and matrix finished product is made.
Biomass carbon XRD spectrum difference is as illustrated in fig. 1 and 2 after before modified.Fig. 1 and Fig. 2's the result shows that, compared to not changing
The biomass carbon carrier of property, by the modified-high polymers such as polypropylene biomass carrier unformed diffusion peak center to low angle
Movement has occurred, declaratives biological material is polymerize at high temperature, crystal form material is generated, to increase carrier
Intensity, enhance its physical property.
And from figure 3, it can be seen that the biomass carbon that stalk is fired passes through after the modification of high polymer, intensity about exists
Between 4.0-4.8MPa, the intensity requirement that biological floating bed medium carrier is used for a long time is complied fully with.And containing when biomass carbon
Amount accounts for about the biomass matrix prepared when 70% (i.e. the mixing mass ratio of polypropylene and biomass carbon is 3:7), can meet simultaneously
The high request of porosity and intensity.At this point, the intensity of biomass matrix is 4.5MPa, porosity 85%.
It can be seen that the modification of both the above high polymer and thermoplastic setting make finished product become sturdy and durable and be unlikely to
Full charing.After high pressure and thermoplastic processing, base portion charing, releasing carbon effect can be slower and lasting.And the life
Substance high-area carbon matrix has good bioaffinity, is a kind of environmentally friendly carrier matrix.
(the mixed of polypropylene and biomass carbon is taken using the environmentally friendly biomass carbon carrier matrix prepared in the present embodiment
Close matrix prepared by the test group that mass ratio is 3:7), the microorganism colonization examination carried out 30 days by a definite date is placed in eutrophication water
It tests.Simultaneously in order to compare to show, the common biomass carbon without above-mentioned modification of equivalent is taken as a control test.The extension of the two
Film test result is as shown in figure 4, with traditional biomass carbon phase ratio, environmentally friendly biomass carrier matrix biology at the 10th day
Film amount has reached maintenance level (about 25mg/g), far more than the microorganism colonization amount (about 8mg/g) of same time ordinary student substance carbon,
Biofilm rate about improves 3 times.Above results proved that modified environmentally friendly biomass matrix is as biological floating bed load
The feasibility and high efficiency of body microorganism colonization.
Environmentally friendly biomass matrix of the invention is after modification, by increasing its microorganism colonization in application
The removal effect of microorganism in water body can be enhanced in rate (biofilm biomass under cultivating).But apply biomass matrix of the present invention
When as biological floating bed matrix, need to establish at least one and the matched biological floating bed system of the present invention in the region of receiving water body
System.Application of the medium carrier in biological floating bed is shown below by another embodiment.
Embodiment 2: the biological floating bed application of environmentally friendly biomass carrier is carried
As shown in figure 5, the environmentally friendly biomass carrier carry for preparing embodiment 1 is floating to ecology in the present embodiment
In bed, eutrophication water is handled.It includes floating body 2 and floating bed framework 1 that this is biological floating bed.Floating body 2 can be used hollow
PPR pipe, both ends can be suspended on the water surface after blocking.Floating body 2 is fixed on 1 bottom of floating bed framework, is made by the buoyancy of its own
Biological floating bed entirety floats on the water surface.Floating bed framework 2 forms latticed, and planting pot 3, emergent aquactic plant are placed in each grid
5 kinds are planted in planting pot 3.It is vertically sequentially hung with more dry string bags 4 below each planting pot, is filled with embodiment 1 in the string bag 4
The environmentally friendly biomass carrier matrix of middle preparation, as biological floating bed matrix.Emergent aquactic plant can be selected canna glauca,
The phytomass such as Lythrum salicaria, mushroom grass, thaliadeabata are big, well developed root system, the water plant that Propagation of Rhizomes ability is strong, plant is graceful, this
The root system of a little plants can extend downwardly, and contact in water with the biological floating bed matrix in the string bag.
The floating bed is placed in eutrophication water to be processed in the present embodiment, kind is hung under string bag nature and is implanted with beauty
The lower end of the planting pot of any of several broadleaf plants, the string bag are contacted with the root system of emergent aquactic plant.In the process of running, matrix passes through the knot with root system of plant
It closes, forms one layer of biomembrane in water, matrix constantly discharges carbon source, for used in the denitrification flora growth in biomembrane, then leads to
Cross the denitrification denitrogenation of flora.Nitrogen in the biological floating bed system is mainly on the root system and matrix for pass through emergent aquactic plant
Nitrification and denitrification effect, the absorption of root system of plant, the volatilization of ammonia and the processes such as the absorption of matrix and filtering of microorganism and
Removal.Nitrogen mainly exists in the form of organic nitrogen and two kinds of inorganic nitrogen in natural water (such as agricultural drain), and inorganic nitrogen can be with
It is absorbed by emergent aquactic plant, protein needed for synthesizing its growth, but this part of nitrogen only accounts for the 8%~16% of nitrogen pool, residue
Most nitrogen be all organic nitrogen.The organic nitrogen of the biological floating bed system is easier to turn under the action of the microorganisms such as amonifying bacteria
Turn to NH4 +-N.With not carry matrix it is biological floating bed compared with, due to be added in the biological floating bed system of the present embodiment environment friend
Good type biomass carrier increases BOD: NO when system processing river low ratio of carbon to ammonium waste water3 -The removal rate of the ratio between-N, nitrogen will be big
It is big to improve, 30%~50% can be risen to from 10% or so, the reason is that BOD: NO3It is unfavorable for denitrification when N ratio is too low
Progress, when ratio rises to 2.3, Denitrification rate reaches maximum value.
In addition, in order to compare environmentally friendly biomass carrier matrix of the invention with other conventional substrates, this
It is also synchronous in embodiment to be provided with two kinds of traditional sponge carrier, pure stalk carriers progress check experiments.Test is in a static condition
It carries out, it is dense in the total nitrogen and ammonia nitrogen of the biological floating bed middle water body of different time measurement three kinds of carriers of carry of on-test respectively
Degree.
As shown in fig. 6, under static conditions, compared with traditional sponge carrier, pure stalk, removal of the matrix of the present invention to total nitrogen
Efficiency more preferably, reaches 28%, effect is significantly better than traditional sponge carrier, pure stalk.In matrix biofilm first three days, microbe inoculation
In the lag phase, biofilm is slow, low to nitrogen removal rate.Biofilm the 3-7 days, Gram-negative bacteria progressed into stationary phase, always
Nitrogen removal efficiency increases.
As shown in fig. 7, under static conditions, compared with traditional sponge carrier, pure stalk, removal of the matrix of the present invention to ammonia nitrogen
Better effect has reached 56%, and effect is significantly better than traditional sponge carrier, pure stalk.This is because the micro- life of traditional sponge carrier
Object biofilm is difficult, mainly suction-operated is utilized to complete the removal of nitrogen.Matrix of the present invention relies on biggish specific surface area, excellent
Different releases carbon performance, and micro organism quantity is more, assembles more denitrification flora, higher to nitrogen removal efficiency.
It is indicated above that this biomass matrix, when as floating bed upshift operation, biomass matrix and water plant collocation are suitable
When can adhere to for microorganism and provide huge surface area, be easily formed biomembrane, promote pollutant and be degraded by microorganisms benefit
With.And matrix used is taken from the byproduct biomass carbon of agricultural wastes, and is changed using polypropylene and polyacrylamide
Property, have the characteristics that hydrophily and bioaffinity.In the floating bed system, biomass matrix can be as the original of carbon source sustained release
Material, and can be as the carrier of microorganism colonization in floating bed matrix.In general, production cost of the present invention is low, ecological safety, no dirt
Dye, suits large area to popularize, and is expected to be widely used in terms of administering water body and heavy metal-polluted soil and organic contamination.
Above-mentioned embodiment is only a preferred solution of the present invention, so it is not intended to limiting the invention.Have
The those of ordinary skill for closing technical field can also make various changes without departing from the spirit and scope of the present invention
Change and modification.Therefore all mode technical solutions obtained for taking equivalent substitution or equivalent transformation, all fall within guarantor of the invention
It protects in range.
Claims (10)
1. a kind of preparation method of the biological floating bed matrix prepared by biomass carbon source, which is characterized in that specific step is as follows:
Polypropylene is uniformly mixed with biomass carbon, is put into polyacrylamide solution and impregnates, be then placed in baking oven and bake, into
Row functional group modification；It is modified that second of baking is carried out by matrix compression moulding, after molding, matrix finished product is made.
2. the preparation method of biological floating bed matrix as described in claim 1, which is characterized in that the polypropylene and biomass carbon
Mixed mass ratio is 3:7.
3. the preparation method of biological floating bed matrix as described in claim 1, which is characterized in that the polyacrylamide solution is dense
Degree is 1mg/L, and polypropylene and biomass impregnate 2h in polyacrylamide solution.
4. the preparation method of biological floating bed matrix as described in claim 1, which is characterized in that when carrying out functional group modification, baking oven
Temperature is 120 DEG C, bakes 2h.
5. the preparation method of biological floating bed matrix as described in claim 1, which is characterized in that compacting when by matrix compression moulding
Pressure is 50MPa.
6. the preparation method of biological floating bed matrix as described in claim 1, which is characterized in that when carrying out second of baking, 170
DEG C Muffle furnace in carry out, bake 2h.
7. a kind of biological floating bed matrix of method preparation as described in claim 1.
8. a kind of biological floating bed, which is characterized in that including floating body and floating bed framework, floating body is fixed in floating bed framework, for making
Biological floating bed entirety floats on the water surface；Several planting pots are placed in the floating bed framework, emergent aquactic plant is planted in kind
It plants in basin；It is hung with the string bag below each planting pot, biological floating bed matrix as claimed in claim 7 is filled in the string bag,
And the root system of emergent aquactic plant is contacted with the biological floating bed matrix in the string bag.
9. as claimed in claim 8 biological floating bed, which is characterized in that be vertically sequentially hung with more dry below each planting pot
The string bag.
10. as claimed in claim 8 biological floating bed, which is characterized in that the emergent aquactic plant is canna glauca, thousand bend
Dish, mushroom grass or thaliadeabata.
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| CN110745960A (en) * | 2019-11-05 | 2020-02-04 | 浙江大学 | Multifunctional floating wetland module |
| CN110759482A (en) * | 2019-11-13 | 2020-02-07 | 广东河海工程咨询有限公司 | Suspension type biological carrier ecological floating bed |
| CN112062273A (en) * | 2020-08-06 | 2020-12-11 | 深圳市广汇源环境水务有限公司 | Carbon fiber biological treatment system and method for treating overflow sewage by adopting same |
| CN113615537A (en) * | 2021-09-01 | 2021-11-09 | 仲恺农业工程学院 | Drought and waterlogging preventing hygrophytic flower potting medium |
| CN113816497A (en) * | 2021-10-28 | 2021-12-21 | 徐州工程学院 | Ecological floating bed for restoring aquaculture environment |
| CN115321681A (en) * | 2020-09-21 | 2022-11-11 | 青岛大学 | Enhanced ecological floating bed technology for nitrogen and phosphorus removal of tail water of sewage treatment plant |
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| CN110745960A (en) * | 2019-11-05 | 2020-02-04 | 浙江大学 | Multifunctional floating wetland module |
| CN110759482A (en) * | 2019-11-13 | 2020-02-07 | 广东河海工程咨询有限公司 | Suspension type biological carrier ecological floating bed |
| CN112062273A (en) * | 2020-08-06 | 2020-12-11 | 深圳市广汇源环境水务有限公司 | Carbon fiber biological treatment system and method for treating overflow sewage by adopting same |
| CN112062273B (en) * | 2020-08-06 | 2023-10-13 | 深圳市广汇源环境水务有限公司 | Carbon fiber biological treatment system and method for treating overflow sewage by adopting same |
| CN115321681A (en) * | 2020-09-21 | 2022-11-11 | 青岛大学 | Enhanced ecological floating bed technology for nitrogen and phosphorus removal of tail water of sewage treatment plant |
| CN113615537A (en) * | 2021-09-01 | 2021-11-09 | 仲恺农业工程学院 | Drought and waterlogging preventing hygrophytic flower potting medium |
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