CN1824611A - Composite type inorganic polymer water quality purifier and method of magnetic gathering algae eliminating - Google Patents

Composite type inorganic polymer water quality purifier and method of magnetic gathering algae eliminating Download PDF

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Publication number
CN1824611A
CN1824611A CN 200610038151 CN200610038151A CN1824611A CN 1824611 A CN1824611 A CN 1824611A CN 200610038151 CN200610038151 CN 200610038151 CN 200610038151 A CN200610038151 A CN 200610038151A CN 1824611 A CN1824611 A CN 1824611A
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magnetic
chitosan
solution
algae
water
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CN100519437C (en
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王相勤
柳丹
余增亮
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Institute of Plasma Physics of CAS
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Institute of Plasma Physics of CAS
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  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The present invention discloses a composite type inorganic high-molecular water purifying agent and method for removing algae bloom by means of magnetic polymerization action. Said method includes the following steps: firstly, making the magnetic powder be dispersed in chitosan solution to obtain magnetic chitosan solution; then adding a proper quantity of magnetic chitosan solution into algal liquor, and utilizing the double action of adsorption bridge formation of chitosan and electric neutralization to flocculate frustules, finally, utilizing magnetic responsivity of magnetic powder, under the action of external magnetic field, quickly removing hazardous materials of algae, etc. in the water body.

Description

The method of composite type inorganic polymer water quality purifier and magnetic gathering algae eliminating
Technical field
The invention belongs to a kind of water quality cleansing agent (method of magnetic gathering algae eliminating), specifically is a kind of water quality cleansing agent that is used for removing water body algae such as rivers and lakes.
Background technology
In recent years, the algae of the rivers,lakes and seas of China is spread unchecked the extensive concern that causes various circles of society, large-area alga eruption, havoc the balance and stability of aquatic ecosystem, not only influenced water landscape, influenced the development of culture fishery, and algae toxicity has constituted the threat to environment for human survival.Only red tide reaches more than billions of units for the coastal financial loss that causes every year, so the outburst of algae has become a kind of disaster.Roughly can be summed up as physics method, chemical method and biological process than the popular algae-removing method at present.
The physics method: physical method is (as high pressure ionization, high-voltage pulse, alternating intense magnetic field, ultraviolet ray, ultrasonic wave etc.) then be to be converted into chemical energy with electric energy, change molecular structure and the character enter water body or water body material, reach and kill and wound, kill impurity in algae and decomposition, the adsorbed water body, reach the purpose that purifies water system.This advantage is not destroyed water body, noresidue, but physics to kill and wound be relation of equal quantity, it is big more to kill and wound life entity, consumption is many more, it is many more to kill and wound many more energy consumptions, water quality impurity is many more, it is many more to consume energy.The method that comprises mechanical process in addition or manually salvage algae and take to dredge, the former can only can not tackle the problem at its root as easy supplementary means at all, and expends a large amount of manpower and materials, has little effect.
Chemical method: mainly be to adopt various chemical algae removing agent, its most pronounced effects, but also have most danger, thus very prudent when using, in strict accordance with the consumption operation that requires, otherwise can cause serious consequence.Because the chemical ingredients of these algicide is the copper compound of processable, perhaps chelated copper class material, these compounds produce injury to a certain degree even cause death the Shui nationality such as fish pasture and water are biological, and carcinogenesis is arranged, and also can produce other some uncertain bad sequela.
Biological process: it is at tens kinds of living microorganisms and the corresponding enzyme of handling eutrophication water that thing is repaired algicide, it is a kind of pure biotechnological formulation of All Pure Nature, the hydrobiont in the water body and the mankind etc. are not produced any harm and side effect, in a single day product drops into water body, the algae competition nutrition source in rapid activation of the microorganism in the product and the water, thus make algae lack nutrition death, sink under water, increasing microorganism continues the dead algae of degraded, until elimination, makes water body become clear.But biological process particularly the method for restoration of the ecosystem among a small circle, the control of algal tufa is an important method in the FX.But these class methods often need to drop in advance huge artificial engineering, to create and control suppresses the condition of required waterplant of algal tufa (bottom low in transparency as submerged plant or that lack suitable bed mud is difficult to existence) or animal survival, thereby take effect slow, cost is high, the difficult improvement that generally is applicable to big area, sudden algal tufa.
Recently domestic and international research is pointed out, using the clay agglomeration of Nantural non-toxic cheapness may be the method that is hopeful to administer this environmental pollution most except that algae.Wherein, ambient water quality National Key Laboratory of Ecological Environment Research Center, Chinese Academy of Sciences and Qingdao University of Science and Technology's material and environmental science institute have all carried out the chitin modified influence that clay flocculating is removed microcystic aeruginosa respectively, reach the research of microcystic aeruginosa in chitosan and the composite cohesion water body of natural clay mineral sepiolite.Natural clay mineral has the good adsorption effect to microcystic aeruginosa, the composite again chitosan flocculant of going up, adsorption bridging by chitosan and electrically in and dual function, the further net of flco that forms is caught the little flco in the water body, make the flco of formation thick, fine and close, settling velocity is fast, and the water after the processing is limpid.
Every kind of above-mentioned algae-removing method all has its merits and demerits separately, but clay removes the main deficiency of algae is: just will be deposited to the bottom after the blue-green algae absorption, and drop to that water-bed algae still live, and still can survive and breeding in a large number over a period to come; Secondly, drop to water-bed algae and be in anoxic condition, if after rotting, can discharge hydrogen sulfide and algae toxin, and the algae toxin can't decompose, in water body, can cause the destruction of being suffocated of bottom-dwelling and spore biology after the diffusion, the serious bed mud anoxic that causes, cause secondary pollution and biological death even emit obnoxious flavour, further destroy the water body biologic chain, cure the symptoms, not the disease.
Summary of the invention
The method that the purpose of this invention is to provide a kind of composite type inorganic polymer water quality purifier and magnetic gathering algae eliminating, this scavenging agent and method be the adsorption-condensation algae effectively, have simultaneously and can rapidly algae be shifted out water body, avoided the possibility of secondary pollution up hill and dale by the effect of foreign field.The bonding bridge formation of chitosan and the dual function flocculation frustule of charge neutrality had both been utilized on one side, utilize the magnetic responsiveness of magnetic on one side, enrichment frustule apace under the effect of outside magnetic field, transport the lake region, these are nitrogenous in the hope of making, the material of the phosphorus water body that shifts out as much as possible, make the possibility of body eutrophication drop to minimum, remove an algae salvaging difficult problem afterwards thereby fast and effeciently solved, salvage thing with the enzyme process biological degradation simultaneously, make that magnetic is separated, recovery and reuse, reduce the cost of water treatment.
Technical scheme of the present invention is:
Composite type inorganic polymer water quality purifier is characterized in that it being that magnetic mixes the chitosan magnetic solution that obtains with chitosan solution.
Described scavenging agent, it is characterized in that be with the chitosan solution of magnetic and 0.1~1.2mg/mL by 9: 1~1: 1 part by weight mixed chitosan magnetic solution.
Described scavenging agent is characterized in that described granularity of magnet powder is the 80-300 order.
A kind of method of magnetic gathering algae eliminating, it is characterized in that chitosan magnetic solution is joined in the algae liquid, adsorption bridging by chitosan and electrically in and dual function flocculation frustule, utilize the magnetic responsiveness of magnetic, the effect of outside magnetic field to remove in the water body objectionable impuritiess such as algae down fast again.
Described method is characterized in that described chitosan magnetic solution is that magnetic mixes with chitosan solution and obtains.
Described method is characterized in that described chitosan magnetic solution is the chitosan solution of magnetic and 0.1~1.2mg/mL to be mixed by 9: 1~1: 1 part by weight obtain.
Described method is characterized in that the concentration of chitosan magnetic solution in water is: 20mg/L~4mg/L.
Through evidence,, can make the algae number by 4.80 * 10 using under a certain amount of chitosan magnetic solution situation of (being called for short CS-M) 6Individual/mL reduces to 2.8 * 10 3Individual/mL, clearance reaches 99.94%; Turbidity drops to 0.00NTU by 130NTU, and clearance reaches 100%; Chlorophyll a drops to 0.0 μ g/L (can't detect with ordinary method) from 164.5 μ g/L, and clearance reaches 100%.
Scavenging agent of the present invention can adsorb fast or in and objectionable impurities in the water, improve water transparency, keep water conditioning, acid base equilibrium.Enrichment frustule apace under the effect of outside magnetic field has solved the salvaging problem of removing after the algae, has stopped may taking place of secondary pollution.Salvage thing with the enzyme process biological degradation simultaneously, make that magnetic is separated, recovery and reuse, thus the minimizing processing cost.This treatment agent high-efficiency broad spectrum, speed is fast, the safety performance height, excessive input can not produce any toxic side effect, can substitute various water conditioners fully, is a kind of green product of new type of safe environmental protection, and this product not only has the water purification effect, also has effects such as deodorizing, decolouring.The preparation technology of this method is simple, and cost economy has popularizing application prospect in the fields such as eutrophication in marine red tide and lake.
Embodiment
The present invention at first prepares chitosan magnetic solution.With the chitosan solution of magnetic and 0.1~1.2mg/mL by 9: 1~1: 1 part by weight mixed chitosan magnetic solution.The chitosan magnetic solution that adds 20mg/L~4mg/L then is in algae solution, adsorption bridging by chitosan and electrically in and dual function flocculation frustule, utilize the magnetic responsiveness of magnetic at last, objectionable impuritiess such as algae are removed down fast in the water body in the effect of outside magnetic field.Utilize this method can make the algae number by 4.80 * 10 6Individual/mL reduces to 2.8 * 10 3Individual/mL, clearance reaches 99.94%; Turbidity drops to 0.00NTU by 130NTU, and clearance reaches 100%; Chlorophyll a drops to 0.0 μ g/L (can't detect with ordinary method) from 164.5 μ g/L, and clearance reaches 100%.

Claims (8)

1, composite type inorganic polymer water quality purifier is characterized in that it being that magnetic mixes the chitosan magnetic solution that obtains with chitosan solution.
2, scavenging agent according to claim 1, it is characterized in that be with the chitosan solution of magnetic and 0.1~1.2mg/mL by 9: 1~1: 1 part by weight mixed chitosan magnetic solution.
3, scavenging agent according to claim 1 is characterized in that described granularity of magnet powder is the 80-300 order.
4, a kind of method of magnetic gathering algae eliminating, it is characterized in that chitosan magnetic solution is joined in the algae liquid, adsorption bridging by chitosan and electrically in and dual function flocculation frustule, utilize the magnetic responsiveness of magnetic again, objectionable impuritiess such as algae are removed down fast in the water body in the effect of outside magnetic field.
5, method according to claim 4 is characterized in that described chitosan magnetic solution is that magnetic mixes with chitosan solution and obtains.
6, method according to claim 4 is characterized in that described chitosan magnetic solution is the chitosan solution of magnetic and 0.1~1.2mg/mL to be mixed by 9: 1~1: 1 part by weight obtain.
7,, it is characterized in that the concentration of chitosan magnetic solution in water is: 20mg/L-4mg/L according to claim 4,5 or 6 described methods.
8,, it is characterized in that can be applicable to the fields such as improvement of marine red tide and lake algal tufa according to claim 4,5,6 or 7 described methods.
CNB2006100381511A 2006-01-26 2006-01-26 Composite type inorganic polymer water quality purifier and method of magnetic gathering algae eliminating Expired - Fee Related CN100519437C (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100494100C (en) * 2007-03-11 2009-06-03 中国科学院等离子体物理研究所 Method for treating algae bloom by strong-flocculation magnetic polymer and algaecide
CN100500588C (en) * 2007-03-27 2009-06-17 中国科学院等离子体物理研究所 Preparation method for composite flocculant and method of harnessing alga bloom
CN101362612B (en) * 2007-08-10 2010-12-22 四川德美环境技术有限责任公司 Algal bloom pretreatment technology method through rare-earth magnetic disc in water-supply plant
CN101362613B (en) * 2007-08-10 2011-06-29 四川环能德美科技股份有限公司 Agent for magnetically separating and purifying algal bloom and preparation method thereof
CN101333020B (en) * 2007-06-25 2011-11-16 中国科学院等离子体物理研究所 Method for high-efficiency harnessing eutrophicated algal tufa in lake and floating floor of magnetic deposition machine
CN106745569A (en) * 2016-12-30 2017-05-31 雷笑天 A kind of preparation method of composite magnetic algicide
CN109912046A (en) * 2019-03-30 2019-06-21 杨晓飞 A kind of water and treat agricultural waste agent and preparation method thereof
CN112978879A (en) * 2021-02-23 2021-06-18 河南科技大学 Double-compound magnetic modified flocculant for separating suspended particles in high-turbidity water and preparation and application thereof
CN113697917A (en) * 2021-09-09 2021-11-26 浙大宁波理工学院 Natural material composite flocculant and preparation method and application thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4285819A (en) * 1980-01-28 1981-08-25 California Institute Of Technology Functional magnetic microspheres
CN1285517C (en) * 2003-09-03 2006-11-22 华南理工大学 Method for preparing magnetic filling with biological affinity, hydrophilicity and activity for water treatment
CN1285654C (en) * 2004-12-28 2006-11-22 华南理工大学 Preparation method of amino dithio carboxylic acid polymer chelating agent
CN100362605C (en) * 2005-05-25 2008-01-16 中山大学 Water-based magnetic liquid and method for making same

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100494100C (en) * 2007-03-11 2009-06-03 中国科学院等离子体物理研究所 Method for treating algae bloom by strong-flocculation magnetic polymer and algaecide
CN100500588C (en) * 2007-03-27 2009-06-17 中国科学院等离子体物理研究所 Preparation method for composite flocculant and method of harnessing alga bloom
CN101333020B (en) * 2007-06-25 2011-11-16 中国科学院等离子体物理研究所 Method for high-efficiency harnessing eutrophicated algal tufa in lake and floating floor of magnetic deposition machine
CN101362612B (en) * 2007-08-10 2010-12-22 四川德美环境技术有限责任公司 Algal bloom pretreatment technology method through rare-earth magnetic disc in water-supply plant
CN101362613B (en) * 2007-08-10 2011-06-29 四川环能德美科技股份有限公司 Agent for magnetically separating and purifying algal bloom and preparation method thereof
CN106745569A (en) * 2016-12-30 2017-05-31 雷笑天 A kind of preparation method of composite magnetic algicide
CN106745569B (en) * 2016-12-30 2020-08-11 东阳市特意新材料科技有限公司 Preparation method of composite magnetic algaecide
CN109912046A (en) * 2019-03-30 2019-06-21 杨晓飞 A kind of water and treat agricultural waste agent and preparation method thereof
CN112978879A (en) * 2021-02-23 2021-06-18 河南科技大学 Double-compound magnetic modified flocculant for separating suspended particles in high-turbidity water and preparation and application thereof
CN113697917A (en) * 2021-09-09 2021-11-26 浙大宁波理工学院 Natural material composite flocculant and preparation method and application thereof
CN113697917B (en) * 2021-09-09 2023-10-03 浙大宁波理工学院 Natural material composite flocculant and preparation method and application thereof

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Assignee: Anhui Kingorigin Biotechnology Co., Ltd.

Assignor: Inst. of Plasma Physics, Chinese Academy of Sciences

Contract fulfillment period: 2007.3.20 to 2026.5.17 contract change

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Denomination of invention: Composite type inorganic polymer water quality purifier and method of magnetic gathering algae eliminating

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