CN108094420A - The preparation method of modified konjac glucomannan supported copper sustained release agent and the application in wawter bloom control - Google Patents
The preparation method of modified konjac glucomannan supported copper sustained release agent and the application in wawter bloom control Download PDFInfo
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- CN108094420A CN108094420A CN201711452150.6A CN201711452150A CN108094420A CN 108094420 A CN108094420 A CN 108094420A CN 201711452150 A CN201711452150 A CN 201711452150A CN 108094420 A CN108094420 A CN 108094420A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
- A01N25/10—Macromolecular compounds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
- A01N43/42—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings condensed with carbocyclic rings
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/30—Microbial fungi; Substances produced thereby or obtained therefrom
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
Abstract
The present invention is using konjaku flour as raw material, prepare copper-loaded modified konjac glucomannan, with cyanobacteria, green alga, diatom and dinoflagellate etc. for laboratory experiment algae, the results showed that modified konjac glucomannan supported copper has apparent inhibitory action to the growth of different algal species, has Controlled release algal grown characteristic.Copper-loaded sustained release agent has cyanobacteria, green alga, diatom and Algal Bloom of Peridiniopsis Sp. in Gaolan in natural water body apparent control action, and field trial proof can be controlled did not broke out wawter bloom in 13 years.The Cu in copper-loaded 0.5 1.0 g/L water bodys of modified konjac glucomannan dosage2+It is less than《Standards for drinking water quality》Plays limit value and《Water environment quality standard》In III class water quality Cu2+Content.The sustained release control algae agent has the advantages that copper sulphate is efficient, quick, its slow-release capability also avoids directly launching the shortcomings that copper sulphate causes local concentration of copper sulfate excessively high simultaneously, also there is Nantural non-toxic, biodegradable property, be that a kind of natural, safe efficient, application prospect widely controls algae agent.
Description
Technical field
The present invention provides a kind of supported copper modified konjac glucomannan sustained release agent and its in terms of algal bloom is controlled
Using.
Background technology
With the rapid development of industrial and agricultural production and the expansion of city size, a large amount of industrial wastewaters, sanitary sewage and farmland
Rainwash is discharged into water body in lake, exacerbates the eutrophication in lake.During lake eutrophication, algae has been often led to
（Particularly cyanobacteria）Amount reproduction formed wawter bloom.On the one hand the formation of cyanobacterial bloom results in water transparency decline, dissolving
Oxygen is reduced, and suspended matter and COD increase；On the other hand generate and secrete substantial amounts of secondary metabolite, such as toxin, odorous compound
Deng.These secondary metabolites can not only influence the quality of drinking water and aquatic products, can also make aquatic and some terrestrial animals
Poisoning, in some instances it may even be possible to endanger the health of the mankind.
Physical method, biological method and chemical method are mainly currently included to the removal of algae.Physical include machinery salvage,
The methods of clay flocculation, water body aeration, supercritical ultrasonics technology and shading technology, but such method can only be confined to small size pond or big water body
Local waters.Biological method mainly includes fish control algae, microbial technique except algae and allelopathy algal control, is to utilize ecosystem
System food chain intake principle and biology counteract each other relation and control wawter bloom to control or inhibit algal bloom so as to reach
Purpose, be a kind of " green " algae-removing method, but technical difficulty and management difficulty are big, slowly effect, and substantial contribution needed to put into.
Chemical method mainly includes copper sulfate method, chlorine method, Chlorine Dioxide Method, permanganimetric method and ozone except algae.
Chemical method is in currently as emergent algae-removing method using more.Compared with other control algae agent, copper ion can be effective
Inhibit the growth of algae, influence plasm permeability of the membrane.The inactivation of algae of copper ion is effective, stable, cheap and to people
The toxic action of body health is low, these features make copper class compound become the first choice that the U.S., Australia etc. control algal grown
Algicide.Current most popular chemical algicide method is exactly that copper sulphate is directly launched into water body, but easily causes local sulphur
Sour copper concentration is excessively high, and so as to endanger other aquatiles in water, long-term launch can also cause secondary pollution of water.In addition, sulfuric acid
Copper enters the copper ion formed after water body can be converted into the very low copper carbonate of solubility quickly（CuCO3,Kap=1.4×10-10）With
Kocide SD（Cu(OH)2,Kap=2.2×10-20）And precipitate, reduce the efficiency of algicide.According to the literature, copper-bath is thrown
Enter into fish pond, almost all of copper ion can be all deposited in bed mud in two days.
Therefore, when copper sulphate is used to remove algae, can slowly be discharged by copper-loaded sustained release agent to reach control copper ion
Purpose controls the injected volume of copper sulphate.The method removal red tide algae of Yin Ping rivers et al. soluble glass carrier sustained release copper ion；
Li Hongliang et al. prepares copper-loaded algicide by carrier of chitosan, achieves good effect.Konjaku is pure natural ring
Border friendly material has nontoxic, biodegradable characteristic, is with a wide range of applications in various fields.
The content of the invention
It is an object of the invention to provide a kind of supported copper modified konjac glucomannan sustained release agent and on wawter bloom is administered
Using.
（1）It crushes, sieves after fresh konjak is dried, dried after methanol or ethyl alcohol purification, add in distilled water afterwards and match somebody with somebody
Konjak portuguese gansu polyose sugar juice processed, adds soybean oil and acrylate, is stirred at 50 ~ 85 DEG C in thermostat water bath；
（2）Catalyst, emulsifier, absolute ethyl alcohol are dissolved in distilled water, mixed liquor is added in into step（1）Solution in, 40-80
DEG C emulsified stirring 100-200min of temperature, then filtered after 3-5 h are stirred at room temperature, while washed repeatedly with distilled water, directly
It is in neutrality to filter liquor, it is modified konjac glucomannan to collect product；
（3）Modified konjaku glucomannan is taken to be placed in container, copper-containing substance is added in container, after stirring 2-4 h at room temperature
（The speed of stirring is 300-2000rpm/min）, filter, while washed repeatedly with distilled water, collect product be supported copper from
The modified konjac glucomannan hydrogel of son.
The supported copper modified konjac glucomannan sustained release agent 5-2000 mg/m that will be prepared3It is launched in March in miniature water
In storehouse, pool and small lakes.Supported copper modified konjac glucomannan sustained release agent can swim in the water surface, slowly discharge copper ion,
Achieve the purpose that control algal grown in 1-3.
Above-mentioned catalyst is sodium carbonate, triethylamine, one or two kinds of combination such as ammonium hydroxide and sodium hydroxide, and addition is
1%-3%.It is 3%- that mentioned emulsifier, which includes one or two kinds of combination, the additive amounts such as saponin(e element, soybean lecithin, polyacrylamide,
8%.Above-mentioned copper-containing substance, including aminophenyl porphyrin copper, N- substituted nitrogen heterocyclic crown ethers copper, dihydroxysuccinic acid copper, 8-hydroxyquinoline
Copper reagent such as copper and yeast copper etc..Above-mentioned wawter bloom, including the wawter bloom that cyanobacteria, green alga, dinoflagellate and diatom etc. are sociales.
Technical solution using the present invention, has the following advantages：
1. the modified konjac glucomannan for loading copper compound has good slow-release capability.
2. in experiments experiment, respectively using cyanobacteria, green alga, dinoflagellate and diatom as experimental subjects, copper-loaded sustained release agent pair is found
The growth of phytoplankton has apparent inhibitory action.Field trial proof can be controlled does not break out wawter bloom in 1-3.
3. in optimization process effect Cu2+Concentration is less than Cu in drinking water national standard2+Content（Less than 1.0
mg/L）.
4. the sustained release control algae agent has the advantages that copper sulphate is efficient, quick, slow-release capability also avoids directly throwing simultaneously
Put the shortcomings that copper sulphate causes local concentration of copper sulfate excessively high, it may have Nantural non-toxic, biodegradable property are a kind of days
So, safe efficient, application prospect widely controls algae agent.
Description of the drawings
Fig. 1 is konjaku glucomannan scanning electron microscope (SEM) photograph in embodiment one, and A is the electron microscope under 500 multiplying powers, and B is 1000 times
Electron microscope under rate.
Fig. 2 is supported copper modified konjac glucomannan scanning electron microscope (SEM) photograph in embodiment one, and A is the electron microscope under 500 multiplying powers,
B is the electron microscope under 1000 multiplying powers.
Fig. 3 be in embodiment one before modified after konjaku glucomannan infrared spectrum.
Fig. 4 is that the small ring algae Chlorophyll-a Content variation of not same amount sustained release agent is added in embodiment two.
Fig. 5 is in the solution for handled in embodiment two small ring algae growth, and copper ion is slow in different amounts of copper-loaded sustained release agent
Release figure.
Fig. 6 be added in example IV in natural water body not same amount sustained release agent to the releasability of copper ion.
Fig. 7 is the concentration variation for adding in not same amount sustained release agent chlorophyll a in example IV in natural water body.
Specific embodiment
Embodiment 1
It crushes, sieves after fresh konjak is dried, dried after ethyl alcohol purification；The konjaku glucomannan after 1.0 g purifications is weighed, is added
Enter in 250 mL beakers, add in distilled water prepare 100g 1% Glucomannan solution, thereto add in 200g soybean oil and
30g acrylate.It is stirred in thermostat water bath, controlled at 75 DEG C.By 12g triethylamines, 5g saponin(es element, the anhydrous second of 30g
Alcohol is dissolved in 30mL distilled water.Mixed liquor is added in above-mentioned solution, 120 min of emulsification stirring.It is taken out after stirring 4 h at room temperature
Filter, while washed repeatedly with distilled water, until filter liquor is in neutrality, collect product.The konjak portuguese gansu polyose that above-mentioned 200g is taken to be modified
Sugar is placed in the beaker of 500 mL, is weighed 108g copper 8-quinolinolates and is added in beaker.3 h of strong stirring at room temperature is filtered,
It is washed repeatedly with distilled water simultaneously, it is the modified konjac glucomannan hydrogel for loading copper ion to collect product.5g is copper-loaded
Modified konjac glucomannan is added in 5 aqueous solutions containing scenedesmus and chlorella（Chlorophyll-a Content is 6.6mg/L）, scenedesmus
Gradually dead in 3 days, scenedesmus and chlorella not regrowth in 60 days with chlorella, and Cu2+Concentration is less than drinking water country
Standard.
Fig. 1 is konjaku glucomannan scanning electron microscope (SEM) photograph in embodiment one, and A is the electron microscope under 500 multiplying powers, and B is 1000 times
Electron microscope under rate.
Fig. 2 is supported copper modified konjac glucomannan scanning electron microscope (SEM) photograph in embodiment one, and A is the electron microscope under 500 multiplying powers,
B is the electron microscope under 1000 multiplying powers.
Fig. 1 the result shows that, the arrangement of KGM surface layers uniformly, it is close.Since the interaction of hydrogen bond between KGM molecules makes its shape
Into orderly molecular structure, therefore the larger adsorption layer of specific surface area is hardly formed on KGM surfaces.Fig. 2 illustrates, by Modified K GM
SEM figures as can be seen that by the cross-linking modified formation that can increase surface hole defect and fold increasing its adsorption ability.Ester
The hydrophobic group changed the inhomogeneity of reaction and generated causes its strand to be unable to ordered arrangement, makes modified konjak portuguese gansu polyose
There are inhomogenous hole shape and overlapping layer in sugared surface, causes the increase of its surface area and the enhancing of adsorption ability.
Fig. 3 be in example one before modified after konjaku glucomannan infrared spectrum.It can be seen from the infared spectrum of KGM
1007 cm-1-1170 cm-1Between peak belong to pair of C-O and-C-O-C- on konjak portuguese gansu polyose sugar backbone in glucoside
Claim stretching vibration absworption peak and asymmetric stretching vibration peak, 1634 cm-1Go out the stretching vibration for belonging to the keys of the C-O on hydroxyl.874
cm-1With 807 cm-1The peak at place belongs toβ- D glycosidic bond configuration absworption peaks and pyranoid ring breathing vibration absworption peak.By Modified K GM's
Infared spectrum, which can be seen that modified KGM, has the backbone structure of konjaku glucomannan macromolecular.But in 1746 cm-1Place goes out
Stronger ester carbonyl stretching vibration absworption peak is showed, has illustrated to be reacted between KGM and aliphatic acid.In 3009 cm-1With 2854
cm-1There is the absworption peak of carboxylic acid, also esterification has occurred in explanation.
Embodiment 2
It crushes, sieves after fresh konjak is dried, dried after methanol or ethyl alcohol purification；Weigh the konjaku Portugal after 2.0 g purifications
Sweet glycan is added in 250 mL beakers, adds in the Glucomannan solution that distilled water prepares 3%, adds in the soybean oil of 300g thereto
With 30g acrylate.It is stirred in thermostat water bath, controlled at 85 DEG C.By 10g sodium hydroxides, 10g polyacrylamides, 50g
Absolute ethyl alcohol is dissolved in 50mL distilled water.Mixed liquor is added in above-mentioned solution, 120 min of emulsification stirring.4 h are stirred at room temperature
After filter, while washed repeatedly with distilled water, until filter liquor is in neutrality, collect product modification konjaku glucomannan.It takes above-mentioned
Modified konjaku glucomannan 200g is placed in the beaker of 500 mL, is weighed 205 g aminophenyls porphyrin coppers and is added in beaker.Room
Lower 3 h of strong stirring of temperature, filters, while is washed repeatedly with distilled water, and it is the modified konjaku Portugal for loading copper ion to collect product
Sweet glycan hydrogel.The copper-loaded modified konjac glucomannans of 3.2g are added in 5 aqueous solutions containing small ring algae（Biomass 5.31
×108 cell/L）, small ring algae biomass originates to be continuously decreased in 1 day, biomass 5.67 × 10 on the 7th3 cell/L）, and nine
Small ring algae grows without rebound in ten days, and Cu2+Concentration is less than drinking water national standard.
Fig. 4 is that the small ring algae Chlorophyll-a Content variation of not same amount sustained release agent is added in embodiment two.
As seen from Figure 4, increase with the content of copper-loaded sustained release agent, control algae efficiency change is little, therefore optimum dosage
For 0.5 g/L.Copper-loaded modified konjac glucomannan is Cu except the active ingredient of algae2+.It is due to copper pair that copper generates toxicity to algae
The sulfur-containing group of frustule wall surface has very strong affinity, the normal metabolism of interference algae and biochemical reaction process, breaks
The intracellular organic matters such as bad chloroplaset, so as to generate inhibitory action to the growth of small ring algae.In experiment, the small ring of copper-loaded sustained release agent is added
After 24 h, algae solution color is shoaled algae algae solution by green, after 48h, is become yellow green, is become yellow after 72h, is illustrated most of small
Ring algae has been killed.Thus illustrate, copper-loaded modified konjac glucomannan sustained release agent has good control algae effect.
Fig. 5 is the sustained release of copper ion in different amounts of copper-loaded sustained release agent in the solution for handled in example two small ring algae growth
Figure.
As shown in Figure 5, with the increase of sustained release agent dosage, Cu2+Burst size increase.Growth trend is basically identical.Preceding
There is rate of release quickly, the rate of release after 12d slows down, and the sustained release agent burst size of low concentration tends towards stability in 12d.Show
The copper-loaded sustained release agent of the modified konjac glucomannan has good slow-release capability.
Embodiment 3
It crushes, sieves after fresh konjak is dried, dried after methanol or ethyl alcohol purification；Weigh the konjaku Portugal after 2.5 g purifications
Sweet glycan, add in 250 mL beakers in, add in distilled water prepare 2.2% Glucomannan solution, thereto 250g soybean oils and
45g acrylate.It is stirred in thermostat water bath, controlled at 85 DEG C.20g sodium hydroxides, 65g soybean lecithins, 50g is anhydrous
Ethyl alcohol is dissolved in 50mL distilled water.Mixed liquor is added in above-mentioned solution, 150 min of emulsification stirring.It is taken out after stirring 5 h at room temperature
Filter, while washed repeatedly with distilled water, until filter liquor is in neutrality, collect product modification konjaku glucomannan.Take appropriate modification
Konjaku glucomannan be placed in the beaker of 500 mL, weigh 170g dihydroxysuccinic acids copper add in beaker in.Strength at room temperature
3 h are stirred, are filtered, while are washed repeatedly with distilled water, it is the modified konjac glucomannan water for loading copper ion to collect product
Gel.The copper-loaded modified konjac glucomannans of 46g are added in enclosure 150 aqueous solutions containing Peridiniopsis sp（Biomass 8.06
×107 cell/L）, Peridiniopsis sp biomass originates to be continuously decreased in seven days（Down to biomass 3.31 × 103 cell/L）, and
Peridiniopsis sp is grown without rebound in 90 days, and Cu2+Concentration is less than drinking water national standard.
Embodiment 4
It crushes, sieves after fresh konjak is dried, dried after methanol or ethyl alcohol purification；Weigh the konjaku Portugal after 3.0 g purifications
Sweet glycan is added in 250 mL beakers, adds in the Glucomannan solution that distilled water prepares 5%, thereto 250g soybean oils and 80g
Acrylate.It is stirred in thermostat water bath, controlled at 50 ~ 85 DEG C.36g sodium carbonate, 80g soybean lecithins, 50g is anhydrous
Ethyl alcohol is dissolved in 50mL distilled water.Mixed liquor is added in above-mentioned solution, 150 min of emulsification stirring.It is taken out after stirring 4 h at room temperature
Filter, while washed repeatedly with distilled water, until filter liquor is in neutrality, collect product modification konjaku glucomannan.
The konjaku glucomannan that 500g is modified is taken to be placed in the beaker of 2000 mL, 500g yeast copper is weighed and adds in beaker
In.Strong stirring 3h at room temperature is filtered, while washed repeatedly with distilled water, and it is the modified evil spirit for loading copper ion to collect product
Taro glucomannan hydrogel.The copper-loaded modified konjac glucomannans of 1300g are added to 130 m2In washing basin（Thickness of deposits
20cm, depth of water 80-120cm）, microcystic aeruginosa, anabena are sociales in water body, initial biomass 1.94 × 108cell/
L）, Cu in 12 months2+Concentration is less than drinking water national standard, and biomass maintains 6.68 × 106 cell/L -2.51×103
Cell/L, cyanobacteria grow without rebound.
Fig. 6 be added in example IV in natural water body not same amount sustained release agent to the releasability of copper ion
In natural water body, sustained release copper, the water sample and mud sample of copper sulphate of 0,0.5 mg/L, 1.0 mg/L, 1.5 mg/L are added in,
Copper ion reaches maximum burst size in 7 d, is respectively 0,0.252 mg/L, 0.308 mg/L, 0.420 mg/L, 0.238
Mg/L, 0.700 mg/L, illustrate copper ion in natural water body, except part copper ion enter frustule inhibit algal grown it is numerous
Outside growing, there is part to utilize sedimentation by the other biological in natural water body and organic matter.The copper-loaded sustained release of modified konjac glucomannan
Agent has copper ion good slow release effect, and it discharges the concentration of copper ion and is below the most highly concentrated of national copper in drinking water
1 mg/L。
Fig. 7 is the concentration variation for adding in not same amount sustained release agent chlorophyll a in example IV in natural water body
Fig. 7 the result shows that, in natural water body, the copper-loaded sustained release agent of modified konjac glucomannan in 24 h have preferably control algae
Effect, after 24 h, chlorophyll-a concentration is almost nil, and after 7 d, the copper ion of low concentration, which has the growth of algae, to be promoted to make
With.
Claims (8)
1. a kind of preparation method of supported copper modified konjac glucomannan sustained release agent, which is characterized in that include the following steps：
（1）It crushes, sieves after fresh konjak is dried, dried after methanol or ethyl alcohol purification, add in distilled water afterwards and prepare evil spirit
Taro Glucomannan solution, adds soybean oil and acrylate, is stirred at 50 ~ 85 DEG C in thermostat water bath；
（2）Catalyst, emulsifier, isopropanol or ethyl alcohol are dissolved in distilled water, mixed liquor is added in into step（1）Solution
In, the emulsified stirring 100-200 min of 40-80 DEG C of temperature, then filtered after 3-5 h are stirred at room temperature, while it is anti-with distilled water
After backwashing is washed, until filter liquor is in neutrality, it is modified konjac glucomannan to collect product；
（3）Modified konjaku glucomannan is taken to be placed in container, copper-containing substance is added in container, after stirring 2-4 h at room temperature,
It filters, while is washed repeatedly with distilled water, it is the modified konjac glucomannan hydrogel for loading copper ion to collect product.
2. the preparation method of supported copper modified konjac glucomannan sustained release agent described in claim 1, which is characterized in that step
（1）In, the mass concentration of konjaku glucomannan solution is 1-3% in mixed solution；Konjaku glucomannan, soybean oil and acrylic acid
The mass ratio of ester is 1：1.5-3：0.1-0.8.
3. the preparation method of supported copper modified konjac glucomannan sustained release agent described in claim 1, which is characterized in that step
（2）In, the catalyst is sodium carbonate, triethylamine, ammonium hydroxide or sodium hydroxide；Emulsifier include saponin(e element, soybean lecithin or
Polyacrylamide；The 3%-8% that catalyst is the 1%-3% of fresh konjak additive amount, emulsifier is fresh konjak additive amount.
4. the preparation method of supported copper modified konjac glucomannan sustained release agent described in claim 1, which is characterized in that step
（3）In, copper-containing substance includes aminophenyl porphyrin copper, N- substituted nitrogen heterocyclic crown ethers copper, dihydroxysuccinic acid copper, copper 8-quinolinolate
Or yeast copper.
5. the preparation method of supported copper modified konjac glucomannan sustained release agent described in claim 1, which is characterized in that step
（3）Mixing speed be 300-2000rpm/min.
6. the supported copper modified konjac glucomannan sustained release agent that any one is prepared in claim 1-5 is quick-fried in control wawter bloom
Application on hair.
7. the application described in claim 6, which is characterized in that the algal bloom is including cyanobacteria, green alga, dinoflagellate and diatom
The algal bloom that sociales trigger.
8. the application described in claim 6, which is characterized in that supported copper modified konjac glucomannan sustained release agent is directed to algal bloom
Reservoir, pool and the amount of application in lake be 5-2000 mg/m3。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109081416A (en) * | 2018-08-29 | 2018-12-25 | 西安建筑科技大学 | A kind of lanthanum support type coating material controlling lake eutrophication, Gu phosphate material and preparation method, Gu phosphorus method and solid phosphorus screen |
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| CN102161711A (en) * | 2011-01-27 | 2011-08-24 | 西南科技大学 | Method for preparing absorbing material based on modified konjac glucomannan |
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