CN101864232A - New type algae-resisting coating, preparation method thereof and application of managing algae water in lake and library - Google Patents
New type algae-resisting coating, preparation method thereof and application of managing algae water in lake and library Download PDFInfo
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- CN101864232A CN101864232A CN 201010199785 CN201010199785A CN101864232A CN 101864232 A CN101864232 A CN 101864232A CN 201010199785 CN201010199785 CN 201010199785 CN 201010199785 A CN201010199785 A CN 201010199785A CN 101864232 A CN101864232 A CN 101864232A
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a new type algae-resisting coating. According to weight percentage, the raw materials for preparing the coating comprise 40 to 60% of resin mixture of MEG resin and synthetic resin and 60 to 40% of organic solvent, wherein the MEG resin is 20 to 80% of the resin mixture. The invention also discloses an algae-resisting net for treating the algae water pollution in lake and library. The new type algae-resisting coating and the algae-resisting net technique can efficiently and durably treat the algae in lake and library. Through a plenty of tests, emergency and prevention are both tested. Grasses are planted on bottom silt so as to form a large area of plant cover, which is in favor of environmental restoration of the lake, and can treat both the symptoms and root causes.
Description
Technical field
The present invention relates to a kind of coating, particularly a kind of new type algae-resisting coating the invention still further relates to the preparation method of this kind new type algae-resisting coating and the application of administering storehouse, lake algae water.
Background technology
Be distributed with blue-green algae in the lake in the whole world about 70%, blue-green algae can bring destructive harm to the lake, entered since 21st century, global warming, ecotope continue to worsen, and the nutritive substances such as nitrogen, phosphorus that enter Hu Ku constantly increase the aggravation of body eutrophication situation, and then causing the outburst of water body algal tufa more and more frequent, scale is increasing.According to the science introduction, serious wawter bloom can cover the water surface, stop chemosynthesis and atmosphere exchange in the water body, dissolved oxygen concentration in the water is reduced rapidly, cause the death of hydrocoles and the ecological damage of surrounding enviroment (view and stench), these influences further produce havoc to the political economy (as investment business, water industry, tourism) of surrounding cities again.Simultaneously, algal tufa often makes the algae content of toxins severe overweight in the water body, target organ one liver that infringement is human, and HUMAN HEALTH and drinking water safety in serious threat.
In order to remove algal tufa, numerous domestic and international experts has dropped into the effort of nearly half a century, has studied the way of various control algal tufa, as chemical method, physics method and biological process or the like.At present, the physics method mainly comprises machinery or methods such as artificial salvaging, clay flocculation and shading technology.The physics method shows the most directly, and it directly removes the algae in the water body, can not produce secondary pollution, but owing to incur great expense, so this method can only be confined to the local waters of little water body or big water body.Chemical method is to use maximum emergent algae-removing methods at present.Chemical process is removed the algae instant effect, can carry out in waterhead area, water treatment plant, adopts this growth of method control algae in reservoir, lake in states such as the U.S., Australia.Chemical process commonly used has copper sulfate method, chlorine method, dioxide peroxide method, potassium permanganate process, hydrogen peroxide and ozone etc.Use chemical process can destroy frustule, the interior most of algae toxin of cell is infiltrated in the water body, increase the background concentration of algae toxin in the water body.Biological process comprises that microbial technique removes algae, vegetalization sense algal control and fish control algae etc., and this method is simple, environmental protection, but the example of successful Application is not a lot.Because above the whole bag of tricks all exists such or such defective, for many years, people's cover technology safe, long-acting, that cost is low, easy and simple to handle that always waits in expectation can realize.
Summary of the invention
Technical problem to be solved by this invention is at the deficiencies in the prior art, provides simple, easy to use, the anti-algae of a kind of raw material effective new type algae-resisting coating.
The invention also discloses the preparation method and the application in administering storehouse, lake algae water thereof of this new type algae-resisting coating.
Technical problem to be solved by this invention is to realize by following technical scheme.The present invention is a kind of new type algae-resisting coating, is characterized in: it is to be made by following raw materials by weight percent,
By MEG resin and synthetic resins blended resin compound 40-60%;
Organic solvent 60-40%;
Wherein: the MEG resin accounts for the 20-80% of resin compound weight.
MEG resin of the present invention is meant: number of patent application is 200710026054.5, publication number is CN101168589, name is called the new type resin described in the Chinese patent of " a kind of production technique of new type resin ", it makes through condensation reaction by propenal and ethyl vinyl ether, and its concrete method for making can be referring to the record in the disclosure patent documentation.Now this resin is on sale in source, Lianyungang Ji institute of microbiology.
MEG resin of the present invention adopts green renewable raw materials to make, it successfully breaks through human polymer chemistry and the interdisciplinary critical technological difficulties of life, has the function of microorganisms such as killing nearly all bacterium, mould, virus, protozoon, gemma and algae; Have nontoxicly, do not cause the toxicity evaluation of secondary pollution and excellent physicochemical property; Possess activity in varying environment, should fitting property; Wide spectrum, efficient, durable, safety are the base mateirals of environmentally friendly improvement microorganism disaster.
MEG resin of the present invention is through microorganism detection center, Guangdong Province, adopt international standards: ASTM D5589-97 (2002) (U.S.), detected result: 0 grade of (anti-algae rate: 100%), entrust registration number: the little inspection in Guangdong (2008) SP0267 number of anti-algae performance deciding grade and level.
Organic solvent described in the present invention can be the mixed solvent of one or more compositions of benzene, alcohol, ester, ether or the ketone of routine in the prior art.The mixed solvent of one or more compositions of preferred dimethylbenzene, gasoline, ethanol, butanols, butyl ester or ethyl acetate.
Below be a kind of preferred scheme of organic solvent in the new type algae-resisting coating of the present invention: contain the dehydrated alcohol that weight percent is 30-50% in the described organic solvent, all the other organic solvents are the mixed solvent of one or more compositions of benzene, alcohol, ester, ether or ketone except that dehydrated alcohol.
In the new type algae-resisting coating of the present invention, described synthetic resins can be any synthetic resins disclosed or commercially available in the prior art, and is preferred: acrylic resin, silicone resin, ketone resin, resol or petroleum resin.
New type algae-resisting coating of the present invention can prepare as follows.A kind of preparation method as the described new type algae-resisting coating of above technical scheme mixes the MEG resin with synthetic resins at normal temperatures by described weight proportion, adds organic solvent dissolution again, stirs, and control viscosity is to 30-100s, promptly.
New type algae-resisting coating of the present invention can be used for administering the algae water pollution of Hu Ku.In use, new type algae-resisting coating can be coated on the base material of paddling, then it be dropped in the algae pollution water body that needs to administer.
The invention also discloses a kind of anti-algae net that storehouse, lake algae water pollutes of administering, be characterized in: it comprises the head rope, and the new type algae-resisting coating of (also promptly of the present invention) described in the above technical scheme of coating forms anti-algae coating on the head rope.
The using method of the anti-algae net that storehouse, above-mentioned improvement lake algae water pollutes can adopt following A, B or C method to use,
A: the emergent use:, will resist the algae net plane to be fixed on and get final product apart from water surface 10-30cm centimetre place as water body frustule concentration＞107/L;
B: prevention is used: when algae lived in seclusion and became silted up the end of in winter, will resist the algae net plane to be layed at the bottom of the lake and get final product on the silt;
C: restoration of the ecosystem is used: in anti-algae net making processes, submerged plant seed kind is attached on the head rope, will get final product on will resisting the algae net plane to be layed in again to become silted up at the bottom of the lake.
Compared with prior art, the present invention has following technique effect:
1. new type algae-resisting coating technical security of the present invention, effectively, cost is low, easy and simple to handle, can administer the lake blue algae wide popularization and application.
2. it is efficient, durable to adopt new type algae-resisting coating of the present invention and anti-algae network technology to administer the lake algal tufa, by a large amount of, multi-level experiment, and emergent and prevention dual-purpose, at end silt grass planting, thereby form large-area vegetation, help the restoration of the ecosystem in lake, reach the target for the treatment of both principal and secondary aspect of disease.
3. the algae mode was killed in silt at the bottom of new type algae-resisting coating of the present invention and anti-algae net can be selected winter, did not influence lake surface operation and view.And preventive effect is long-acting, easy and simple to handle.
Embodiment
Below further describe concrete technical scheme of the present invention,, and do not constitute restriction its right so that those skilled in the art understands the present invention further.
Embodiment 1.A kind of new type algae-resisting coating, it is to be made by following raw materials by weight percent,
By MEG resin and synthetic resins blended resin compound 40%;
Organic solvent 60%;
Wherein: the MEG resin accounts for 20% of resin compound weight.
Embodiment 2.A kind of new type algae-resisting coating, it is to be made by following raw materials by weight percent,
By MEG resin and synthetic resins blended resin compound 60%;
Organic solvent 40%;
Wherein: the MEG resin accounts for 80% of resin compound weight.
Embodiment 3.A kind of new type algae-resisting coating, it is to be made by following raw materials by weight percent,
By MEG resin and synthetic resins blended resin compound 50%;
Organic solvent 50%;
Wherein: the MEG resin accounts for 50% of resin compound weight.
Embodiment 4.A kind of new type algae-resisting coating, it is to be made by following raw materials by weight percent,
By MEG resin and synthetic resins blended resin compound 45%;
Organic solvent 55%;
Wherein: the MEG resin accounts for 40% of resin compound weight.
Embodiment 5.A kind of new type algae-resisting coating, it is to be made by following raw materials by weight percent,
By MEG resin and synthetic resins blended resin compound 55%;
Organic solvent 45%;
Wherein: the MEG resin accounts for 60% of resin compound weight.
Embodiment 6.In embodiment 1-5 in any one described new type algae-resisting coating: described organic solvent is selected from the mixed solvent of one or more compositions of benzene, alcohol, ester, ether or ketone.
Embodiment 7.In embodiment 1-5 in any one described new type algae-resisting coating: described organic solvent is selected from the mixed solvent of one or more compositions of dimethylbenzene, gasoline, ethanol, butanols, butyl ester or ethyl acetate.
Embodiment 8.In embodiment 1-5 in any one described new type algae-resisting coating: contain weight percent in the described organic solvent and be 30% dehydrated alcohol, all the other organic solvents are the mixed solvent of one or more compositions of benzene, alcohol, ester, ether or ketone except that dehydrated alcohol.
Embodiment 9.In embodiment 1-5 in any one described new type algae-resisting coating: contain weight percent in the described organic solvent and be 50% dehydrated alcohol, all the other organic solvents are the mixed solvent of one or more compositions of benzene, alcohol, ester, ether or ketone except that dehydrated alcohol.
Embodiment 10.In embodiment 1-9 in any one described new type algae-resisting coating: described synthetic resins is selected from: acrylic resin, silicone resin, ketone resin, resol or petroleum resin.
Embodiment 11.A kind of preparation method of new type algae-resisting coating mixes the MEG resin with synthetic resins at normal temperatures by described weight proportion, adds organic solvent dissolution again, stirs, and control viscosity (with being coated with-4 glasss, 25 degrees centigrade under record) is to 30-100s, promptly.
Embodiment 12.A kind ofly administering the application of storehouse, lake algae water in polluting as the new type algae-resisting coating of embodiment 1-11 described in any one.Its using method is new type algae-resisting coating to be coated on the base material of paddling, then in the algae pollution water body that its input is needed to administer.
Embodiment 13.A kind of anti-algae net of administering the algae water pollution of storehouse, lake, it comprises the head rope, coating forms anti-algae coating as any one described new type algae-resisting coating among the embodiment 1-11 on the head rope.
Embodiment 14.The using method that a kind of anti-algae that pollutes as storehouse, embodiment 13 described improvement lake algae water is netted is characterized in that: adopt following A, B or C method to use,
A: the emergent use: when water body frustule concentration＞10
7Individual/L, will resist the algae net plane to be fixed on and get final product apart from water surface 10-30cm centimetre place;
B: prevention is used: when algae lived in seclusion and became silted up the end of in winter, will resist the algae net plane to be layed at the bottom of the lake and get final product on the silt;
C: restoration of the ecosystem is used: in anti-algae net making processes, submerged plant seed kind is attached on the head rope, will get final product on will resisting the algae net plane to be layed in again to become silted up at the bottom of the lake.
Embodiment 15.The experiment of administering the algae pollution water body with anti-algae net.
1, material:
(1) preparation of algae-resisting coating: make by following raw materials by weight percent,
By MEG resin and silicone resin blended resin compound 50%;
Ethyl acetate 50%;
Wherein: the MEG resin accounts for 50% (by the process of the test requirement, can adjust on demand) of resin compound weight.
Method for making: by described weight proportion the MEG resin is mixed at normal temperatures with silicone resin, add acetic acid ethyl dissolution again, stir, control viscosity is to 65s, promptly.
(2) preparation of anti-algae net:
A, select the base material that adheres to as algae-resisting coating such as commercial polyethylene fishing net, sun-proof net, window screening, mesh 0.2cm for use
2-1cm
2, standby behind the cleaning-drying.
B, algae-resisting coating is poured in the stainless steel tank pond that is slightly larger than the base material wide cut, the base material of will paddling slowly immerses in the liquid coating pond, pass under the liquid level of setting, allow the liquid of coating fully immerse areola, then in the hauling airing of the opposite in groove pond, surface drying is 20 minutes in air, does solid work 4 hours, is the anti-algae net of finished product after waiting to do solid work.
The coating thickness of c, nettle is 50-120um.
2, the construction and application method of anti-algae net:
A: emergent construction application
Spring and summer season is when water body frustule concentration＞10 such as lake or reservoirs
7Individual/L, will resist the algae net to be fixed on apart from place, 30 centimeters planes of lake surface with ball float or mark post, after 48 hours, can control the outburst of blue-green alga bloom effectively.
B: prevention construction application
Autumn and winter season, temperature descends.Lake blue algae is lived in seclusion and is become silted up the end of in, adopts traditional clay to press the algae method, will resist the algae net to be layed at the bottom of the lake on the silt, and after 2 months, temperature gos up to 20 degrees centigrade, suppresses the recovery of blue-green algae effectively, the algal tufa phenomenon can not take place in 1 year, the preventive effect highly significant.
C: anti-algae grass planting on net restoration of the ecosystem
In anti-algae net dipping process making processes, film not before the surface drying, adopt machinery to raise and spread submerged plant such as eel grass, little tooth eye dish, seed kinds such as Malaysia eye dish, be attached on the head rope, anti-algae net is laid on experimental results show that on becoming silted up at the bottom of the lake: the wetting ability of the online algae-resisting coating of anti-algae, Peng's melt into is cellular rapidly, grass seeds bud bud can be shown one's talent, obtain removing algae function white spherical microbial film that forms and the nitrogen that is enriched in silt interface, the end simultaneously, phosphorus, nutritive salt such as sulphur are to germinating growth and the formation vegetational type of submerged plant, prepared abundant nutrition base, the ecological impact of being become silted up in the end particularly phosphorus exchange will play a positive role, the group vegetation that forms can be improved the transparency of water body significantly, reduce nutrient concentration and chlorophyll content, effectively improve water quality.Therefore anti-algae net not only can remove algae removal kind, effectively the sowing effect of set algae seed kind.
3, experimentation one and result thereof.
Sampling time: on March 31st, 2009
Experimental period: 31-April 24 March
Control algae experiment place: Wuhan East Lake official's bridge.
Water sample is divided into 3 water tanks, volume of water sample is approximately 30 liters in each water tank, one is the contrast case, and one for placing anti-algae net 1 case (MEG resin account for resin compound weight 20%), and one is provided with anti-algae net 2 casees (MEG resin account for resin compound weight 50%).
March 31: contrast case: 1.8 * 10
6Individual/the mL microscopy (mainly being microcystic aeruginosa).
April 2: contrast case: 8.0 * 10
5Individual/mL, anti-algae net 1 case: 5 * 10
4Individual/mL, anti-algae net 2 casees: 1.0 * 10
5Individual/mL, calculate the algae rate of killing with anti-algae net 1 case and control group: 81.25%.
April 15: contrast case: 5.0 * 10
5Individual/mL, anti-algae net 1 case: 5 * 10
4Individual/mL, anti-algae net 2 casees: 1.0 * 10
5Individual/mL, anti-algae net 1 case and control group calculate the algae rate of killing: 90%.
Contrast on April 24 case: 3.0 * 10
5Individual/mL, anti-algae net 1 case:＜10
4Individual/mL, anti-algae net.Case: 1.0 * 10
5Individual/mL, anti-algae net 1 case and control group calculate the algae rate of killing: 96.6%.
4, experimentation two and result thereof.
Sampling time: on January 25th, 2010
The experiment place: East Lake enclosure, depth of water 80cm, bed mud 10cm, hard matrix, 8 glass reinforced plastic enclosures of the no end (2.0 * 1.5 * 1.2m) distribute.
Experimental technique: enclosure inserts in the bed mud, and area 2m * 1.5m drops into the anti-algae net of the algae-resisting coating coating that scribbles different proportionings respectively on January 25th, 2010 in No. 1-No. 4 enclosures, get contrast 1 in addition and contrast 2 enclosures and do not throw in anti-algae net.January 25 is water sampling in No. 4 enclosures, fixed in place.On March 25th, 2010 is in contrast 1 enclosure, No. 1 and No. 4 enclosure samplings, fixed in place.Return the laboratory water sample and concentrate, carry out the plant plankton cell counting by sediments microscope inspection.Each sample microscopy 3 times is averaged.
Experimental result:
1. field observation on March 25 in 2010 and transparency
Contrast 1 enclosure: the water body muddiness, color is greener, transparency 40cm; Contrast 2 enclosures: the floating one deck water of water surface silk floss, transparency 0cm; No. 1 enclosure: water body is limpid, transparency 70cm; No. 2 enclosures: the water surface is floating bubble, the less water silk floss is arranged, transparency 50cm; No. 3 enclosures: be coated with net and swim in the water surface, the next door water body is limpid, transparency 60cm; No. 4 enclosures: be coated with the online floating water surface, adhere to a small amount of bristle algae, transparency 70cm.
2. the water sample plant plankton is counted
No. 4 enclosures plant plankton dominant species on January 25th, 2010 is green alga and latent algae, adds up to 1.18 * 10
8Individual/L, on March 25th, 2010, dominant species was four tail grid algaes (Chlorophyta) and little ring algae, add up to 6.25 * 10
7Individual/L.
Contrasting No. 1 enclosure plant plankton dominant species on March 25th, 2010 is green alga, adds up to 2.98 * 10
8Individual/L, No. 3 enclosures plant plankton dominant species on March 25th, 2010 adds up to 7.38 * 10 for latent algae and minority green alga
6Individual/L.
Conclusion: according to water sample plant plankton counting, wherein enclose anti-algae net for No. 3 of optimum and compare, kill algae rate 97.6% with contrast 1 enclosure.
5, experimentation two and result thereof.
(1) experiment material
Select for use microcystic aeruginosa fachb-905 (Microcystis aeruginosa) to be provided by hydrobiont institute of Chinese Academy of Sciences typical case culture collection council algae kind storehouse (FACHB), this algae is unicellular, is located away from the Dian Chi.At light intensity 20～25 μ E m
-2s
-1, 25 ± 1 ℃ of temperature, photoperiod 12h: 12h cultivates in BG11.
(2) experimental technique
Get microcystic aeruginosa 500ml in beaker, add anti-algae net, be respectively 10*20cm and 10*40cm, place beaker bottom, be placed on incubator and cultivate (light intensity 20～25 μ E m
-2s
-1, 25 ± 1 ℃ of temperature, photoperiod 12h: 12h), microscope (Olympus CX-31) plankton counting chamber counting is used in 24h, 48h, 120h, 168h sampling, does contrast simultaneously.
(3) experimental result
No. 1 sample (10 * 20cm) alga-killing rates:
24 hours 2.5%, 48 hour 29.0%, 130 hour 54.5%, 168 hour 63.6%.
No. 2 samples (10 * 40cm) alga-killing rates:
After 24 hours 27.8%, 48 hour 56.8%, 120 hour 75.6%, 168 hour 88.0%.
Claims (10)
1. new type algae-resisting coating, it is characterized in that: it is to be made by following raw materials by weight percent,
By MEG resin and synthetic resins blended resin compound 40-60%;
Organic solvent 60-40%;
Wherein: the MEG resin accounts for the 20-80% of resin compound weight.
2. new type algae-resisting coating according to claim 1 is characterized in that: described organic solvent is selected from the mixed solvent of one or more compositions of benzene, alcohol, ester, ether or ketone.
3. new type algae-resisting coating according to claim 1 is characterized in that: described organic solvent is selected from the mixed solvent of one or more compositions of dimethylbenzene, gasoline, ethanol, butanols, butyl ester or ethyl acetate.
4. new type algae-resisting coating according to claim 1, it is characterized in that: contain the dehydrated alcohol that weight percent is 30-50% in the described organic solvent, all the other organic solvents are the mixed solvent of one or more compositions of benzene, alcohol, ester, ether or ketone except that dehydrated alcohol.
5. new type algae-resisting coating according to claim 1 is characterized in that: described synthetic resins is selected from: acrylic resin, silicone resin, ketone resin, resol or petroleum resin.
6. preparation method as any one described new type algae-resisting coating of claim 1-5, it is characterized in that: by described weight proportion the MEG resin is mixed at normal temperatures with synthetic resins, add organic solvent dissolution again, stir, control viscosity is to 30-100s, promptly.
7. administering the application of storehouse, lake algae water in polluting as any one described new type algae-resisting coating of claim 1-5 for one kind.
8. application according to claim 7 is characterized in that: its using method is new type algae-resisting coating to be coated on the base material of paddling, then in the algae pollution water body that its input is needed to administer.
9. administer the anti-algae net that storehouse, lake algae water pollutes for one kind, it is characterized in that: it comprises the head rope, and coating forms anti-algae coating as any one described new type algae-resisting coating of claim 1-5 on the head rope.
10. the using method of the anti-algae net that pollutes of storehouse, improvement as claimed in claim 9 lake algae water is characterized in that: adopts the use of following A, B or C method,
A: the emergent use:, will resist the algae net plane to be fixed on and get final product apart from water surface 10-30cm centimetre place as water body frustule concentration＞107/L;
B: prevention is used: when algae lived in seclusion and became silted up the end of in winter, will resist the algae net plane to be layed at the bottom of the lake and get final product on the silt;
C: restoration of the ecosystem is used: in anti-algae net making processes, submerged plant seed kind is attached on the head rope, will get final product on will resisting the algae net plane to be layed in again to become silted up at the bottom of the lake.
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