CN102167419A - Nano composite material for treating blue-green algae pollution - Google Patents
Nano composite material for treating blue-green algae pollution Download PDFInfo
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- CN102167419A CN102167419A CN 201110021000 CN201110021000A CN102167419A CN 102167419 A CN102167419 A CN 102167419A CN 201110021000 CN201110021000 CN 201110021000 CN 201110021000 A CN201110021000 A CN 201110021000A CN 102167419 A CN102167419 A CN 102167419A
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- blue
- green algae
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Abstract
The invention discloses a nano composite material for treating blue-green algae pollution. The material comprises the following substances in part by mass: 30 to 80 parts of nano TiO2, 10 to 50 parts of nano silicon, and 2 to 20 parts of nano silver. The water surface polluted by the blue-green algae can be applied on a large scale to form the state that a high-concentration nano composite material and blue-green algae are combined to ensure that the blue-green algae can be decomposed on a large scale under the photosynthesis, so that the form can ensure that the nano composite material is quickly applied to the large area of the water surface which is polluted by the blue-green algae, and the nitrogen and phosphorus content of the water surface is obviously reduced, and the growth environment of the blue-green algae is reduced fundamentally; and production coast is low, the yield is high and the nano composite material can be applied conveniently.
Description
Technical field
The invention belongs to field of nanocomposite materials, specifically, relate to a kind of nano composite material that blue-green algae pollutes of administering.
Background technology
It is an environmental protection difficult problem in the world wide that blue-green algae pollutes, blue-green algae can breed rapidly by solar radiation in the environment of sufficient nitrogen and phosphorus, and covers on the water surface, makes fish because of the death of anoxic big area, polluted source, and produce harmful toxins and then be detrimental to health.Nearest studies show that, the harmful toxins that blue-green algae produced can polluted water, harm liver and neural system.In addition, directly skin irritation, eyes, nose, throat and cause respiratory inflammation of the toxin that blue-green algae produced.At 1998 and 2005, blue-green algae is polluted in U.S. Environmental Protection Administration and the toxin of generation is classified one of substantial pollution thing as.
The improvement of polluting for blue-green algae does not now both at home and abroad also have a kind of method effectively and fast, condition with the production of manual method control blue-green algae, comprise the ratio that increases fresh water, using ultrasonic wave or biological method to administer blue-green algae pollutes, but effect is all not obvious, thus now internal and international go up to be badly in need of developing a kind ofly administer large-area blue-green algae with hypotoxic method efficiently and pollute.
Summary of the invention
For solving above technical problem, the object of the present invention is to provide a kind of photolysis reactions that utilizes to make blue-green algae be decomposed into carbonic acid gas and water fast, to reach the nano composite material that quick improvement blue-green algae pollutes.
The present invention seeks to realize like this:
A kind of nano composite material of administering the blue-green algae pollution, its key are to comprise the material composition of following mass fraction;
Nano-TiO
230～80 parts
10～50 parts of nano-silicons
Also be added with 2～20 parts of nanometer silvers in the above-mentioned nano composite material.
Above-mentioned nano-TiO
2Be 5～200nm; Nano-silicon is 10～50nm; Nanometer silver is 10～50nm.
Above-mentioned nano-TiO
2, nano-silicon and nanometer silver stir 1～2h and mix under ultrasound environments.
Nano-TiO
2Receive the mixed with rice material mixing in solution with nano-silicon, and through the ultrasonication be combined into, experiment draws nano material and all has stable effect through after the supersound process, and the nano-solution of these high densitys can dilute as required during application becomes the nano-mixture of different concns solution.We find that the optimum concn of the photolysis reactions of nanometer mixing material is 0.02%, and therefore, in following photolysis experiment for blue-green algae, we use 0.02% nano-mixture solution.
Also adding a small amount of nanometer silver is combined with each other, draw the photolysis activity of obvious enhancing nano composite material, this nano composite material has stronger photolysis reactions, the photoelectricity ion is after nano composite material is combined, can further produce the OH molecule, photolysis reactions is further strengthened on the nano composite material surface.
Nano composite material is for the effect that reduces water surface nitrogen and phosphorus concentration: nano composite material reduces the theoretical foundation of water surface nitrogen and phosphorus concentration: TiO
2Nano composite material can be decomposed into O in water
2 -Peroxide radical ion and OH
-Ion, O
2 -Peroxide radical ion and N ion synthesize N in water
2O
2 -The nitrogen dioxide gas evaporation; O
2 -Peroxide radical ion and P ion synthesize PO in water
2 -Gas evaporation.Therefore, this nano composite material of experiment confirm has the effect that reduces water surface nitrogen and phosphorus concentration.
The improvement experiment that nano composite material of the present invention is polluted blue-green algae:
We are used for this test with a kind of typical blue-green algae Microcystis aeruginosa, and this blue-green algae is very easy to cause the big area outburst of fresh water and salt water.The blue-green algae of this big area outburst pollutes and can produce tangible toxin, makes the human world produce abdominal cramps, and grievous injury dog and other animal, and we use the ASTM testing method to test the governance role of nano composite material for blue-green algae.Test shows that the nano composite material experiment obviously reduces blue algae pollution, pollutes the effect with significant concn interdependence for blue-green algae.Blue algae growth is in the environment of suitable fresh water or salt water 96 hours in the middle of this test, and the regulation effect of nano composite material is represented with IC50.IC50 is meant that nano composite material acts on blue-green algae, the concentration when making its production rate fall the end 50%.
Nano composite material of the present invention is tested the influence of fresh water or salt solution Mesichthyes and aquatic plant:
The purpose of this test is to measure nano composite material for fish and the toxic influence of aquatic plant, our applying nano matrix material 1,10 or 100mg/L under normal light source, the fish Pimephales promelas in the water is being carried out 96 hours test, with the test of Daphnia magna having been carried out 48 hours, all no abnormal reaction, we test the side effect of nano composite material with the fresh water not of the same race and the fish of salt water in this test, and definite environmentAL safety concentration, our these tests are to measure the possible side effect of nano composite material according to the requirement of U.S. Environmental Protection Administration and Chinese environmental protection portion with the method for standard, and we determine the reaction of acute (short-term mortality ratio) and chronic (long-term effect).Test is carried out under the condition of fluorescence and UV-light, described as phase III again, we determine nano composite material in acute experiment LC50 (killing the concentration of the nano material of 50% test fish) and the concentration of the NOEC/LOEC in chronic experiment.NOEC is meant that nano composite material does not have the maximum concentration of influence for the fish of being tested or biology or aquatic plant.LOEC is meant that nano composite material is to fish of being tested or the minimum concentration that biology or aquatic plant exerted an influence.We measure FETAX data (frog pregnancy tests) with frog test.We use the four day fetal development toxicity tests of nano composite material for the Xenopus laevis frog.We have measured acute toxicity test and chronic toxicity test in this experiment.We have measured the LC50 of embryo growth in acute experiment, and we have also measured the EC50 (nano composite material influence the concentration of 50% embryo growth) of nano composite material to embryo growth.TI (teratogenic index) numerical value calculates decision (TI=LC50/EC50) with LC50 and EC50.Through these experiments, we reach a conclusion, and this project product is for the water fish class, and frog gestation etc. are nontoxicity influence and side effect all.
Nano composite material of the present invention utilizes photolysis reactions to make blue-green algae be decomposed into carbonic acid gas and water fast, to reach the purpose that quick improvement blue-green algae pollutes.Nano composite material mainly adopts nano level TiO
2With nano level Silicon.These nano materials can be at the water surface in conjunction with blue-green algae, make it to be decomposed into less blue-green algae particle, these less blue-green algae particles further combine and make it to be decomposed into littler blue-green algae particle with nano material, circulation so repeatedly, can make blue-green algae be decomposed into very tiny particle fast, up to finally making blue-green algae be decomposed into CO
2And water.
Beneficial effect: the present invention can large-arealy use at the water surface that blue-green algae pollutes, form the nano complex and the blue-green algae bonded state of higher concentration, blue-green algae can large-arealy be decomposed under photosynthesis, this form can be applied to nano composite material the water surface that large-area blue-green algae pollutes fast, and make that the content of nitrogen and phosphorus obviously reduces in the water surface, fundamentally reduced the environment of blue algae growth; The cost of processing simultaneously is low, and the output height makes this nano composite material be convenient to use.
Embodiment
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Nano-TiO 2 | 30g(5nm) | 50g(100nm) | 60g(150nm) | 80g(200nm) |
| Nano-silicon | 10g(10nm) | 30g(30nm) | 20g(40nm) | 50g(50nm) |
| Nanometer silver | 2g(10nm) | 15g(30nm) | 20g(50nm) |
According to the foregoing description nano material is mixed in and is dissolved as solution, and through the ultrasonication be combined into, the unified then solution that is formulated as 0.02% concentration.We are used for test with a kind of typical blue-green algae Microcystis aeruginosa, and we use the ASTM testing method to test the governance role of nano composite material for blue-green algae.The solution of the foregoing description 1-4 preparation can both obviously reduce blue algae pollution, pollutes the effect with significant concn interdependence for blue-green algae.Blue algae growth is in the environment of suitable fresh water or salt water 96 hours in the middle of this test, and the regulation effect of nano composite material is represented with IC50.IC50 is meant that nano composite material acts on blue-green algae, the concentration when making its production rate fall the end 50%.
Claims (4)
1. administer the nano composite material that blue-green algae pollutes for one kind, it is characterized in that comprising the material composition of following mass fraction;
Nano-TiO
230～80 parts
10～50 parts of nano-silicons
2. according to the described a kind of nano composite material that blue-green algae pollutes of administering of claim 1, it is characterized in that: also be added with 2～20 parts of nanometer silvers in the described nano composite material.
3. according to claim 1 or 2 described a kind of nano composite materials that blue-green algae pollutes of administering, it is characterized in that: described nano-TiO
2Be 5～200nm; Nano-silicon is 10～50nm; Nanometer silver is 10～50nm.
4. according to the described a kind of nano composite material that blue-green algae pollutes of administering of claim 1, it is characterized in that: described nano-TiO
2, nano-silicon becomes solution to stir 1～2h under ultrasound environments with the nanometer silver mixed dissolution to mix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100210006A CN102167419B (en) | 2011-01-19 | 2011-01-19 | Nano composite material for treating blue-green algae pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100210006A CN102167419B (en) | 2011-01-19 | 2011-01-19 | Nano composite material for treating blue-green algae pollution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102167419A true CN102167419A (en) | 2011-08-31 |
| CN102167419B CN102167419B (en) | 2012-11-14 |
Family
ID=44488774
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|---|---|---|---|
| CN2011100210006A Expired - Fee Related CN102167419B (en) | 2011-01-19 | 2011-01-19 | Nano composite material for treating blue-green algae pollution |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466740A (en) * | 2013-08-23 | 2013-12-25 | 同济大学 | Composite algae removal method |
| CN103570084A (en) * | 2012-07-30 | 2014-02-12 | 无锡市顺业科技有限公司 | Nanosilver-based method for protecting and treating blue-green algae pollution |
| CN109553177A (en) * | 2017-09-26 | 2019-04-02 | 宜兴市聚金信化工有限公司 | A kind of improved high-concentration phosphorus-containing wastewater water treatment agent |
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| CN1337163A (en) * | 2000-08-07 | 2002-02-27 | 吴学民 | Composite nano inoganic SiO2/TiO2 bactericide |
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| CN1891636A (en) * | 2005-07-06 | 2007-01-10 | 邰港科技股份有限公司 | Composite material for inhibiting algal growth and its use |
| CN101301605A (en) * | 2008-01-22 | 2008-11-12 | 成都理工大学 | Load type nanocomposite oxide material for purifying environment and preparation thereof |
| CN101475230A (en) * | 2009-01-20 | 2009-07-08 | 合肥蓝鑫新材料有限责任公司 | Blue algae inhibitor, preparation and use method thereof |
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2011
- 2011-01-19 CN CN2011100210006A patent/CN102167419B/en not_active Expired - Fee Related
Patent Citations (6)
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|---|---|---|---|---|
| CN1337163A (en) * | 2000-08-07 | 2002-02-27 | 吴学民 | Composite nano inoganic SiO2/TiO2 bactericide |
| WO2002083297A1 (en) * | 2001-04-16 | 2002-10-24 | Ims Llc | Adsorbent materials for treating biodegradable waste and process for their preparation |
| CN1891636A (en) * | 2005-07-06 | 2007-01-10 | 邰港科技股份有限公司 | Composite material for inhibiting algal growth and its use |
| CN101511193A (en) * | 2006-02-16 | 2009-08-19 | 萨克特本化学有限责任公司 | Biocidal composition |
| CN101301605A (en) * | 2008-01-22 | 2008-11-12 | 成都理工大学 | Load type nanocomposite oxide material for purifying environment and preparation thereof |
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Non-Patent Citations (1)
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| > 20081231 周丽娟等 改性纳米TiO_2对蓝藻的生理生态影响 , * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570084A (en) * | 2012-07-30 | 2014-02-12 | 无锡市顺业科技有限公司 | Nanosilver-based method for protecting and treating blue-green algae pollution |
| CN103570084B (en) * | 2012-07-30 | 2015-05-20 | 无锡市顺业科技有限公司 | Nanosilver-based method for protecting and treating blue-green algae pollution |
| CN103466740A (en) * | 2013-08-23 | 2013-12-25 | 同济大学 | Composite algae removal method |
| CN103466740B (en) * | 2013-08-23 | 2015-12-23 | 同济大学 | A kind of Composite algae removal method |
| CN109553177A (en) * | 2017-09-26 | 2019-04-02 | 宜兴市聚金信化工有限公司 | A kind of improved high-concentration phosphorus-containing wastewater water treatment agent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102167419B (en) | 2012-11-14 |
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Granted publication date: 20121114 Termination date: 20140119 |