CN106824992A - A kind of method of water plant of degrading - Google Patents
A kind of method of water plant of degrading Download PDFInfo
- Publication number
- CN106824992A CN106824992A CN201710076653.1A CN201710076653A CN106824992A CN 106824992 A CN106824992 A CN 106824992A CN 201710076653 A CN201710076653 A CN 201710076653A CN 106824992 A CN106824992 A CN 106824992A
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- China
- Prior art keywords
- water plant
- slaine
- water
- hydrogen peroxide
- dual catalyst
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000000593 degrading effect Effects 0.000 title claims abstract description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000003054 catalyst Substances 0.000 claims abstract description 42
- 229960002163 hydrogen peroxide Drugs 0.000 claims abstract description 41
- 230000009977 dual effect Effects 0.000 claims abstract description 38
- 239000006184 cosolvent Substances 0.000 claims abstract description 15
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 14
- 241000196324 Embryophyta Species 0.000 claims description 66
- 239000000243 solution Substances 0.000 claims description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 16
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerol group Chemical group OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 14
- 244000026873 Alternanthera philoxeroides Species 0.000 claims description 12
- 244000207867 Pistia stratiotes Species 0.000 claims description 12
- 235000006440 Pistia stratiotes Nutrition 0.000 claims description 12
- 230000002378 acidificating effect Effects 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 10
- 235000011187 glycerol Nutrition 0.000 claims description 7
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical class Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 7
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims description 4
- 230000036571 hydration Effects 0.000 claims description 4
- 238000006703 hydration reaction Methods 0.000 claims description 4
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 3
- NQXWGWZJXJUMQB-UHFFFAOYSA-K iron trichloride hexahydrate Chemical group O.O.O.O.O.O.[Cl-].Cl[Fe+]Cl NQXWGWZJXJUMQB-UHFFFAOYSA-K 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 3
- 240000003826 Eichhornia crassipes Species 0.000 claims 1
- 238000006731 degradation reaction Methods 0.000 abstract description 17
- 230000015556 catabolic process Effects 0.000 abstract description 16
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000011017 operating method Methods 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 21
- 241000169203 Eichhornia Species 0.000 description 19
- 238000003756 stirring Methods 0.000 description 17
- 239000002245 particle Substances 0.000 description 10
- DOZSNKOWSCHKLK-UHFFFAOYSA-N Cl.Cl.Cl.OO Chemical compound Cl.Cl.Cl.OO DOZSNKOWSCHKLK-UHFFFAOYSA-N 0.000 description 8
- MPTQRFCYZCXJFQ-UHFFFAOYSA-L copper(II) chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Cu+2] MPTQRFCYZCXJFQ-UHFFFAOYSA-L 0.000 description 8
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000006378 damage Effects 0.000 description 6
- 230000008030 elimination Effects 0.000 description 6
- 238000003379 elimination reaction Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000013505 freshwater Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- -1 tin-hydrogen peroxide Chemical compound 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 229920002488 Hemicellulose Polymers 0.000 description 3
- 229920002522 Wood fibre Polymers 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 229920005610 lignin Polymers 0.000 description 3
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 3
- 241000894007 species Species 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 2
- 229910021592 Copper(II) chloride Inorganic materials 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- AKVRYYXIBVXPIE-UHFFFAOYSA-L OO.[Ni](Cl)Cl Chemical compound OO.[Ni](Cl)Cl AKVRYYXIBVXPIE-UHFFFAOYSA-L 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241001149258 Sporobolus alterniflorus Species 0.000 description 1
- 241000245565 Sporobolus anglicus Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- CABDFQZZWFMZOD-UHFFFAOYSA-N hydrogen peroxide;hydrochloride Chemical compound Cl.OO CABDFQZZWFMZOD-UHFFFAOYSA-N 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Catalysts (AREA)
Abstract
The invention provides a kind of method of water plant of degrading, including：Under sour environment, slaine and hydrogenperoxide steam generator are mixed, obtain slaine hydrogen peroxide dual catalyst；In the presence of cosolvent, water plant is carried out into catalytic reaction in slaine hydrogen peroxide dual catalyst, the water plant degraded.The method operating procedure simple and fast, preparation process low-consumption high-efficiency, low cost, and reaction can reach the effect of degraded under low temperature and normal pressure, for the recycling of water plant provides a new way.Test result indicate that：The method is 55~67% to the degradation rate of water plant.
Description
Technical field
The invention belongs to Waste Disposal Technology field, more particularly to a kind of method of water plant of degrading.
Background technology
Water plant refers to the plant that can be lived in for a long time in water, and common water plant includes：Water hyacinth, hollow lotus seeds
Grass, water lettuce, Spartina alterniflora, Value of Spartina Anglica etc..Wherein, most of aquatic plants such as water hyacinth, alternanthera philoxeroides, water lettuce belong to
In Invasive Alien Species, according to records, water hyacinth is in 1903 by incoming Taiwan, Southeast Asia.This kind of water plant is to swim in water
Face, growth and breeding with water body in nutritional profile have very big relation, bred with sexual and asexual two ways, breeding and
Diffusion rate of propagation is exceedingly fast.In recent years, destruction of the invasion of alien species to ecological environment has become the loss of biodiversity
One of the main reasons.
At present, the water plant such as water hyacinth, alternanthera philoxeroides, water lettuce is listed in world-class evil grass, each in the whole world
Ground, the harm to environment, people's life is extremely serious.It is such as wide especially in south China waters as Invasive Alien Species
Overpreading in 19 rivers,lakes and seas in province such as east, Guangxi, Yunnan, Hainan, Guizhou, Fujian, forms the single plant of large area
Thing group, can increase by 20%~30% biomass daily under optimum conditions.Water hyacinth, alternanthera philoxeroides, water lettuce it is fast
Speed breeds not only polluted-water, aggravates water body eutrophication degree, increases gas concentration lwevel in water, reduces oxygen content in water,
Irreversible destruction is caused to the ecosystem, and the drift of substantial amounts of water plant combines in river course lake surface, blocks river course, influence boat
Fortune, hinders irrigation and drainage, has a strong impact on the development of transport service, tourist industry and culture fishery.
In order to safeguard the cleaning of water body environment, many countries and regions, will put into substantial amounts of manpower, thing every year in the world
Power and financial resources administer this kind of weeds, are salvaged and machinery is salvaged by artificial, are the methods that the current country is most frequently with.This side
Method is most safe to environment, however it is necessary that input and manpower are big, and major part is directly burned, and environment is caused seriously
Pollution, while being also the significant wastage to the resource.
The content of the invention
In view of this, it is an object of the invention to provide a kind of method of water plant of degrading, the method is easy to operate, and
Degradation efficiency is high.
The invention provides a kind of method of water plant of degrading, comprise the following steps：
Under sour environment, slaine and hydrogenperoxide steam generator are mixed, obtain slaine-hydrogen peroxide dual catalyst；
In the presence of cosolvent, water plant is carried out into catalytic reaction in the slaine-hydrogen peroxide dual catalyst, obtained
To the water plant of degraded.
Preferably, the lignocellulosic mass content of the water plant is 55%~75%, the ash of the water plant
Mass content is divided to be 10%~15%.
Preferably, the slaine is selected from Iron(III) chloride hexahydrate, Copper dichloride dihydrate, anhydrous stannic chloride and six hydrations
Any two kinds in Nickel Chloride.
Preferably, the cosolvent is selected from ethanol or glycerine.
Preferably, the temperature of the catalytic reaction is 80 DEG C~110 DEG C；The time of the catalytic reaction is 3~6h.
Preferably, the molar concentration of the slaine is 0.5~3.0mol/L, the molar concentration of the hydrogenperoxide steam generator
It is 0.01~1.5mol/L.
Preferably, the amount ratio of the material of any two kinds of slaines is 1：1~1：5.
Preferably, the ethanol solution that the cosolvent is selected from glycerin solution or mass fraction is 2%~5%.
Preferably, the water plant is selected from water hyacinth, alternanthera philoxeroides or water lettuce.
Preferably, the sour environment is provided by acidic aqueous solution；
The acidic aqueous solution includes aqueous hydrochloric acid solution.
Preferably, the molar concentration of the acidic aqueous solution is 0.5~2.5mol/L.
The invention provides a kind of method of water plant of degrading, comprise the following steps：Under sour environment, by slaine
With hydrogenperoxide steam generator mixing, slaine-hydrogen peroxide dual catalyst is obtained；In the presence of cosolvent, by water plant in institute
Stating slaine-hydrogen peroxide dual catalyst carries out catalytic reaction, the water plant degraded.The method that the present invention is provided is used
Slaine-hydrogen peroxide dual catalyst system in, ionizable metal salt in itself and metal salt catalyst hydrogen peroxide release hydroxyl from
By base, wood fibre structure that can effectively in attack destruction water plant, cut staple element, between hemicellulose and lignin
Key so that destroy water plant structure and finally make its Degradation and Transformation be carbon dioxide and water.The letter of the method operating procedure
Single quick, preparation process low-consumption high-efficiency, low cost, and reaction can reach the effect of degraded under low temperature and normal pressure, be aquatic
The recycling of plant provides a new way.Test result indicate that：The method pair of the degraded water plant that the present invention is provided
The degradation rate of water plant is 55%~67%.
Brief description of the drawings
Fig. 1 is that water hyacinth that the embodiment of the present invention 2 is provided is initial and infrared spectrogram of catabolite.
Specific embodiment
The invention provides a kind of method of water plant of degrading, comprise the following steps：
Under sour environment, slaine and hydrogenperoxide steam generator are mixed, obtain slaine-hydrogen peroxide dual catalyst；
In the presence of cosolvent, water plant is carried out into catalytic reaction in the slaine-hydrogen peroxide dual catalyst, obtained
To the water plant of degraded.
The present invention mixes slaine and hydrogenperoxide steam generator under sour environment, obtains slaine-hydrogen peroxide pair and urges
Agent.
In the present invention, the sour environment is provided by acidic aqueous solution；The acidic aqueous solution includes aqueous hydrochloric acid solution,
The molar concentration of the acidic aqueous solution is preferably 0.5~2.5mol/L.The present invention is preferably by slaine and hydrogenperoxide steam generator
It is added in acidic aqueous solution.In slaine-hydrogen peroxide dual catalyst, the molar concentration of slaine is preferably 0.5~
3mol/L。
In the present invention, the slaine is preferably selected from Iron(III) chloride hexahydrate, Copper dichloride dihydrate, anhydrous stannic chloride
With six hydration Nickel Chlorides in any two kinds.The slaine is preferably composite metal salt, the mol ratio of any two kinds of slaines
Preferably 1：1~1：5.
In the present invention, the ethanol solution that the cosolvent is preferably glycerin solution or mass fraction is 2%~5%.
In the present invention, the molar concentration of the hydrogenperoxide steam generator is preferably 0.01~1.5mol/L.
In the slaine-hydrogen peroxide dual catalyst be catalyzed water plant in the presence of cosolvent by the present invention
Reaction, the water plant degraded.
In the present invention, the water plant is selected from water hyacinth, alternanthera philoxeroides or water lettuce, is all from Guangzhou inland lake
Pool.The present invention does not have specific requirement to the water plant, is using the leaf of discarded water plant, stem, any one position of root
Can.In the present invention, mass fraction of the water plant in system is preferably 5%~20%.The wood of the water plant
Matter cellulose mass content is preferably 55%~75%, and the ash content mass content of the water plant is preferably 10%~15%.
Preferred pair water plant of the present invention is pre-processed；The preprocessing process is specifically included：
By fresh water plant impurity elimination, dry and crush, the water plant for being pre-processed.
The present invention is to the pretreatment of the water plant without strict condition limitation, it is preferred to use sunlight is done
It is dry, efficiently utilize the energy of the Nature.
In a particular embodiment of the present invention, the slaine-hydrogen peroxide catalyzed dose includes ferric trichloride-hydrogen peroxide
Dual catalyst, copper chloride/ferric trichloride-hydrogen peroxide dual catalyst, Nickel Chloride-hydrogen peroxide dual catalyst, copper chloride/nothing
Water butter of tin-hydrogen peroxide dual catalyst and Nickel Chloride/ferric trichloride-hydrogen peroxide dual catalyst.Preferably, performance is excellent
Different slaine-hydrogen peroxide catalyzed dose includes copper chloride/ferric trichloride-hydrogen peroxide dual catalyst, copper chloride/anhydrous tetrachloro
Change tin-hydrogen peroxide dual catalyst and Nickel Chloride/ferric trichloride-hydrogen peroxide dual catalyst.
Preferably be added to water plant in cosolvent by the present invention, then mixes with dual catalyst again.In the present invention, institute
State cosolvent and be preferably selected from ethanol or glycerine.The mass concentration of the cosolvent is preferably 2%~5%.
Catalytic reaction is carried out present invention preferably employs oil bath heating mode.The present invention is preferably urged under conditions of stirring
Change reaction.In the present invention, the temperature of the catalytic reaction is preferably 80 DEG C~110 DEG C；The time of the catalytic reaction is preferred
It is 3~6h.
The invention provides a kind of method of water plant of degrading, comprise the following steps：Under sour environment, by slaine
With hydrogenperoxide steam generator mixing, slaine-hydrogen peroxide dual catalyst is obtained；In the presence of cosolvent, by water plant in institute
Stating slaine-hydrogen peroxide dual catalyst carries out catalytic reaction, the water plant degraded.The method that the present invention is provided is used
Slaine-hydrogen peroxide dual catalyst system in, this book of ionizable metal salt and metal salt catalyst hydrogen peroxide release hydroxyl from
By base, wood fibre structure that can effectively in attack destruction water plant, cut staple element, between hemicellulose and lignin
Key so that destroy water plant structure and finally make its Degradation and Transformation be carbon dioxide and water.The letter of the method operating procedure
Single quick, preparation process low-consumption high-efficiency, low cost, and reaction can reach the effect of degraded under low temperature and normal pressure, be external
The recycling for invading water plant provides a new way.
In order to further illustrate the present invention, a kind of side of the degraded water plant provided the present invention with reference to embodiment
Method is described in detail, but they can not be interpreted as into limiting the scope of the present invention.
Embodiment 1
A), select fresh water hyacinth impurity elimination, dry, crush after be made water hyacinth solid particle；
B), with 0.5mol/L aqueous hydrochloric acid solutions as solvent, 1mL30% hydrogen peroxide and 25gFeCl are taken3·6H2O dissolves, and stirs
Mix uniform, ferric trichloride-hydrogen peroxide dual catalyst is obtained；
C) the water hyacinth solid particle for, taking 1.0g steps a) is added in the ethanol solution of mass concentration 2%, is well mixed
Afterwards, the dual catalyst of step b) is added, after stirring, is heated in the oil bath pan that temperature is 110 DEG C, and it is small to continue stirring 6
When, take its liquid and degrade completion.
To assess the catalytic degradation efficiency of the water plant, gained degradation solution is separated by filtration and obtains solid residue, use water
Wash twice and dried to constant weight at 50 DEG C.Wash and weigh the weight for determining solid residue after drying, and use solid
Residue and water hyacinth powder quality calculate the degradation rate (weight %) of water plant.Therefore the water hyacinth of the present embodiment 1 after calculating
Degradation rate, the results are shown in Table 1.
Embodiment 2
A), select fresh water hyacinth impurity elimination, dry, crush after be made water hyacinth solid particle；
B), with 1mol/L aqueous hydrochloric acid solutions as solvent, it is 1 to take 1mL hydrogen peroxide, mol ratio:5 CuCl2·2H2O and
FeCl3·6H2O dissolves, and stirs, and copper chloride/ferric trichloride-hydrogen peroxide dual catalyst is obtained；
C) the water hyacinth solid particle for, taking 2.0g steps a) is added in the glycerin solution that mass concentration is 5%, mixing
After uniform, the dual catalyst of step b) is added, after stirring, heated in the oil bath pan that temperature is 100 DEG C, and continue stirring
6 hours, take its liquid and degrade completion.The solid residue of gained is separated by filtration, after the treatment such as washing, dry, solid is weighed residual
The weight of slag, the degradation rate of the water hyacinth of the present embodiment is calculated by formula, the results are shown in Table 1.
Degradation solution to the present embodiment is measured using Fourier transform infrared spectroscopy, as a result as shown in Figure 1.Fig. 1 is
Water hyacinth that the embodiment of the present invention 2 is obtained is initial and infrared spectrogram of catabolite.
Embodiment 3
A), select fresh alternanthera philoxeroides impurity elimination, dry, crush after be made alternanthera philoxeroides solid particle；
B), with 1.5mol/L aqueous hydrochloric acid solutions as solvent, 0.2mL hydrogen peroxide and 25gNiCl are taken2·6H2O dissolves, stirring
Uniformly, Nickel Chloride-hydrogen peroxide dual catalyst is obtained；
C) the water lettuce solid particle for, taking 0.5g steps a) is added to mass concentration in 5% ethanol solution, to be well mixed
Afterwards, the dual catalyst of step b) is added, after stirring, is heated in the oil bath pan that temperature is 80 DEG C, and it is small to continue stirring 3
When, take its liquid and degrade completion.The solid residue of gained is separated by filtration, after the treatment such as washing, dry, solid residue is weighed
Weight, the degradation rate of the alternanthera philoxeroides of the present embodiment is calculated by formula, the results are shown in Table 1.
Embodiment 4
A), select fresh water lettuce impurity elimination, dry, crush after be made water lettuce solid particle；
B), with 2.5mol/L aqueous hydrochloric acid solutions as solvent, it is 1 to take 0.5mL hydrogen peroxide, mol ratio:3 CuCl2·2H2O
And anhydrous SnCl4Dissolving, stirs, and copper chloride/anhydrous stannic chloride-hydrogen peroxide dual catalyst is obtained；
C) the water lettuce solid particle for, taking 1.5g steps a) is added to mass concentration in 2% glycerin solution, mixing is equal
After even, the dual catalyst of step b) is added, after stirring, heated in the oil bath pan that temperature is 110 DEG C, and continue stirring 4
Hour, take its liquid and degrade completion.The solid residue of gained is separated by filtration, after the treatment such as washing, dry, solid residue is weighed
Weight, the degradation rate of the water lettuce of the present embodiment is calculated by formula, the results are shown in Table 1.
Embodiment 5
A), select fresh alternanthera philoxeroides impurity elimination, dry, crush after be made alternanthera philoxeroides solid particle；
B), with 2.5mol/L aqueous hydrochloric acid solutions as solvent, it is 1 to take 0.5mL hydrogen peroxide, mol ratio:1 NiCl2·6H2O
And FeCl3·6H2O dissolves, and stirs, and Nickel Chloride/ferric trichloride-hydrogen peroxide dual catalyst is obtained；
C) the alternanthera philoxeroides solid particle for, taking 0.5g steps a) is added in 3% ethanol solution, after stirring, plus
Enter the dual catalyst of step b), after stirring, heated in the oil bath pan that temperature is 95 DEG C, and continue stirring 3 hours, to take it
Liquid is that degraded is completed.The solid residue of gained is separated by filtration, after the treatment such as washing, dry, the weight of solid residue is weighed, led to
The degradation rate that formula calculates the water hyacinth of the present embodiment is crossed, 1 is the results are shown in Table.
The degradation rate of the water plant degradation reaction that 1 embodiment of the present invention of table 1~5 is provided
As seen from the above embodiment, the invention provides a kind of method of water plant of degrading, comprise the following steps：In acid
Property environment under, slaine and hydrogenperoxide steam generator are mixed, obtain slaine-hydrogen peroxide dual catalyst；Exist in cosolvent
Under, water plant is carried out into catalytic reaction in the slaine-hydrogen peroxide dual catalyst, the water plant degraded.This
Invent in slaine-hydrogen peroxide dual catalyst system that the method for providing is used, ionizable metal salt is in itself and metal salt catalyst mistake
Hydrogen oxide release hydroxyl radical free radical, can effectively attack destruction water plant in wood fibre structure, cut staple element,
Key between hemicellulose and lignin, thus destroy the structure of water plant and finally make its Degradation and Transformation for carbon dioxide and
Water.The method operating procedure simple and fast, preparation process low-consumption high-efficiency, low cost, and react i.e. reachable under low temperature and normal pressure
To the effect of degraded, for the recycling of exotic invasive water plant provides a new way.
The present invention is degraded discarded water plant by simple catalyst system, effectively, explore one it is new it is low into
Sheet, low energy consumption, quickly with the method for easy, efficient recovering and processing discarded water plant, be also abandoned biomass from now on, bag
The recycling for including agricultural waste material (such as stalk, bagasse, rice husk), forest products discarded object such as (bark, shell, wood chip) is carried
The new research direction for supplying.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of method of water plant of degrading, comprises the following steps：
Under sour environment, slaine and hydrogenperoxide steam generator are mixed, obtain slaine-hydrogen peroxide dual catalyst；
In the presence of cosolvent, water plant is carried out into catalytic reaction in the slaine-hydrogen peroxide dual catalyst, dropped
The water plant of solution.
2. method according to claim 1, it is characterised in that the lignocellulosic mass content of the water plant is
55%~75%, the ash content mass content of the water plant is 10%~15%.
3. method according to claim 1, it is characterised in that the slaine is selected from Iron(III) chloride hexahydrate, two hydrations
Any two kinds in copper chloride, anhydrous stannic chloride and six hydration Nickel Chlorides.
4. method according to claim 1, it is characterised in that the cosolvent is selected from glycerin solution or mass fraction is
2%~5% ethanol solution.
5. method according to claim 1, it is characterised in that the temperature of the catalytic reaction is 80 DEG C~110 DEG C；It is described
The time of catalytic reaction is 3~6h.
6. method according to claim 1, it is characterised in that the molar concentration of the slaine is 0.5~3.0mol/L,
The molar concentration of the hydrogenperoxide steam generator is 0.01~1.5mol/L.
7. method according to claim 3, it is characterised in that the amount ratio of the material of any two kinds of slaines is 1：1~1：
5。
8. method according to claim 1, it is characterised in that the water plant be selected from water hyacinth, alternanthera philoxeroides or
Water lettuce.
9. method according to claim 1, it is characterised in that the sour environment is provided by acidic aqueous solution；
The acidic aqueous solution includes aqueous hydrochloric acid solution.
10. method according to claim 9, it is characterised in that the molar concentration of the acidic aqueous solution is 0.5~
2.5mol/L。
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| CN105330869A (en) * | 2015-11-27 | 2016-02-17 | 国际竹藤中心 | Hydrolysis method of wood fiber raw material |
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