CN109721145A - A method of Phenol for Waste Water pollutant is separated based on amino acids eutectic solvent - Google Patents
A method of Phenol for Waste Water pollutant is separated based on amino acids eutectic solvent Download PDFInfo
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- CN109721145A CN109721145A CN201910164356.1A CN201910164356A CN109721145A CN 109721145 A CN109721145 A CN 109721145A CN 201910164356 A CN201910164356 A CN 201910164356A CN 109721145 A CN109721145 A CN 109721145A
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Abstract
The present invention relates to technical field for the treatment of of organic waste, a kind of application based on amino acids eutectic solvent in the treatment of waste water is specifically disclosed, with the phenolic comp ' ds pollution in eutectic solvent separation waste water, the eutectic solvent is made by the alcohol compound that molar ratio is 5-10:1 with amino acid, the eutectic solvent is mixed with the waste water containing phenolic comp ' ds pollution, it is stirred to react, stratification, carries out separating treatment.The present invention is environmentally protective, easy to operate, securely and reliably, can efficiently separate the phenolic comp ' ds pollution in waste water, reaction period, separative efficiency is high, has good economy, environmental and social benefits.
Description
Technical field
The present invention relates to technical field for the treatment of of organic waste, more particularly to a kind of amino acids eutectic solvent that is based on to separate
The method of Phenol for Waste Water pollutant.
Background technique
Phenolic compound is the containing oxygen derivative of aromatic hydrocarbons, has more than 2000 kinds in nature, has respectively
Monohydric phenol, dihydric phenol and polyphenol.Phenolic compound is main organic pollutant in water environment, belong to polarity, ionizable,
Faintly acid organic compound has the characteristics that toxicity is big, refractory organics.Phenolic compound is a kind of plasm poisonous substance, to all
Living individual has toxic action, can make protein coagulating.Through detecting, the phenolic compound in surface water is mainly derived from refining
The industrial wastewaters such as coke, paper-making industry, synthesis ammonia, wood preservation and Chemical Manufacture；The main source of phenolic comp ' ds pollution in water body is
The fecal sewage being discharged in city.
Oxygen atom has occupied sizable ratio in the structure of phenolic compound, keeps phenolic compound majority soluble easily in water,
The ability of phenolic compound Transport And Transformation thus is enhanced, becomes the important pollutant source of water body or even environmental pollution.
Waste water containing phenolic compound not only causes huge pollution to environment, while also constituting threat to the safety of the mankind.Mesh
Before, the presence of Phenol for Waste Water class compound has become an important safety problem.However, existing conventional process waste water
During middle phenolic comp ' ds pollution, generally existing treatment effeciency is low, the problems such as reaction time length.Therefore, research and development are green, efficient
The processing method of phenolic comp ' ds pollution is significant.
Summary of the invention
Existing treatment effeciency is low during for existing conventional process Phenol for Waste Water pollutant, the reaction time
The problems such as long, the present invention provide a kind of method based on amino acids eutectic solvent separation Phenol for Waste Water pollutant.
To achieve the above object of the invention, the embodiment of the present invention uses the following technical solution:
A kind of application based on amino acids eutectic solvent in the treatment of waste water separates waste water with the eutectic solvent
In phenolic comp ' ds pollution, the eutectic solvent by molar ratio be 5-10:1 alcohol compound be made with amino acid.
Further, the eutectic solvent the preparation method comprises the following steps: the amino acid is mixed with alcohol compound
Processing is warming up to 90-120 DEG C, and isothermal reaction obtains the eutectic solvent until system transparent and homogeneous.
Further, the alcohol compound is following general formula CnH2n+2OxAt least one of, wherein 1≤n≤10,1
≤ x≤n, such as one or more of glycerine, ethylene glycol, xylitol, isopropanol or n-butanol, as hydrogen bond donor and amino
Acid is combined to form eutectic solvent.
Further, the amino acid is following general formula R CHNH2At least one of COOH, wherein R is C2-C6 alkene
Base, C1~C4 replace alkyl group or unsubstituted alkyl group, nitrogen-containing heterocycle, aromatic radical or naphthenic base, and the C1~C4 replaces alkane
The substituent group of base is one of hydroxyl, carboxyl, sulfydryl, amino, guanidine radicals or phenyl, such as Pidolidone, L-arginine, phenylpropyl alcohol ammonia
One or more of acid, L-PROLINE or L- hydroxyproline, be combined as hydrogen bond receptor with alcohol compound to be formed it is low
Congruent melting solvent.
The above-mentioned method based on amino acids eutectic solvent separation Phenol for Waste Water pollutant, comprising the following steps:
The eutectic solvent is mixed with the waste water containing phenolic comp ' ds pollution, is warming up to 80~120 DEG C, stirring is anti-
0.5~10h is answered, stratification carries out separating treatment.
Further, the waste water containing phenolic comp ' ds pollution and eutectic solvent mass ratio are 5-10:1, are guaranteed low total
Molten solvent can be combined adequately with the phenolic comp ' ds pollution in waste water, reach separating effect.
Further, heating rate is 5~5.5 DEG C/h, guarantees that amino acid and alcohol compound are combined by hydrogen bond
Form eutectic solvent.
Further, the isothermal reaction time is 1-3h.
Further, the time of repose is 0.5-1.0h.
Further, the phenolic comp ' ds pollution is at least one in phenol, cresols, amino phenols, nitrophenols, naphthols or chlorophenol
Kind.
Compared with the existing technology, provided by the invention that Phenol for Waste Water pollutant is separated based on amino acids eutectic solvent
Method, easy to operate, securely and reliably, the eutectic solvent formed using amino acid and alcohol compound is to the phenols in waste water
Pollutant is separated, and eutectic solvent is be combined with each other with phenolic comp ' ds pollution by hydrogen bond action, separates the phenol in waste water
Pollutant, the reaction time is short, and separative efficiency is high, and solvent is not volatile, toxicity is low in eutectic solvent preparation process, can give birth to
Object degradation, it is environmentally protective, there is good economy, environmental and social benefits.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
A method of Phenol for Waste Water pollutant is separated based on amino acids eutectic solvent, comprising the following steps:
(1) 0.16mol (14.81g) glycerine and 0.02mol (2.94g) Pidolidone are subjected to mixing treatment, with 5 DEG C/
H is warming up to 110 DEG C, and isothermal reaction 2h obtains eutectic solvent；
(2) be that 1:6 is configured to waste water model with mass ratio by phenol and water, by the waste water model and eutectic solvent with
Mass ratio is that 6:1 is added in reactor, and 4h is reacted at 110 DEG C, stops heating after reaction, stands 0.5h, is layered, into
Row separation carries out thermogravimetric analysis to the water phase of lower layer, calculates phenol removal rate and reach 98.5%.
Embodiment 2
A method of Phenol for Waste Water pollutant is separated based on amino acids eutectic solvent, comprising the following steps:
(1) 0.06mol (5.53g) glycerine and 0.01mol (1.74g) L-arginine are subjected to mixing treatment, with 5.5
DEG C/h is warming up to 100 DEG C, isothermal reaction 1.5h obtains eutectic solvent；
(2) be that 1:4 is configured to waste water model with mass ratio by cresols and water, by the waste water model and eutectic solvent with
Mass ratio is that 5:1 is added in reactor, and 6h is reacted at 120 DEG C, stops heating after reaction, stands 0.5h, is layered, into
Row separation carries out thermogravimetric analysis to the water phase of lower layer, and cresols removal rate reaches 97.5%.
Embodiment 3
A method of Phenol for Waste Water pollutant is separated based on amino acids eutectic solvent, comprising the following steps:
(1) 0.1mol (6.21g) glycerine and 0.02mol (3.48g) Pidolidone are subjected to mixing treatment, with 5 DEG C/h
100 DEG C are warming up to, isothermal reaction 1h obtains eutectic solvent；
It (2) is that 1:6 is configured to waste water model with mass ratio by amino phenols and water, by the waste water model and eutectic solvent
It is that 6:1 is added in reactor with mass ratio, 5h is reacted at 100 DEG C, stops heating after reaction, stands 0.5h, is layered,
It is separated, thermogravimetric analysis is carried out to the water phase of lower layer, amino phenols removal rate reaches 96.5%.
Embodiment 4
A method of Phenol for Waste Water pollutant is separated based on amino acids eutectic solvent, comprising the following steps:
(1) 0.06mol (9.13g) xylitol and 0.01mol (1.74g) L-arginine are subjected to mixing treatment, with 5.5
DEG C/h is warming up to 100 DEG C, isothermal reaction 1.5h obtains eutectic solvent；
It (2) is that 1:5 is configured to waste water model with mass ratio by nitrophenols and water, by the waste water model and eutectic solvent
It is that 8:1 is added in reactor with mass ratio, 0.5h is reacted at 120 DEG C, stops heating after reaction, stands 1h, is layered,
It is separated, thermogravimetric analysis is carried out to the water phase of lower layer, nitrophenols removal rate reaches 96.5%.
Embodiment 5
A method of Phenol for Waste Water pollutant is separated based on amino acids eutectic solvent, comprising the following steps:
(1) 0.1mol (9.21g) glycerine and 0.01mol (1.15g) L-PROLINE are subjected to mixing treatment, with 5.5 DEG C/
H is warming up to 100 DEG C, and isothermal reaction 2h obtains eutectic solvent；
(2) be that 1:5 is configured to waste water model with mass ratio by naphthols and water, by the waste water model and eutectic solvent with
Mass ratio is that 7:1 is added in reactor, and 10h is reacted at 80 DEG C, stops heating after reaction, stands 0.5h, is layered, into
Row separation carries out thermogravimetric analysis to the water phase of lower layer, and naphthols removal rate reaches 97.8%.
Embodiment 6
A method of Phenol for Waste Water pollutant is separated based on amino acids eutectic solvent, comprising the following steps:
(1) 0.16mol (14.81g) glycerine and 0.04mol (5.98g) phenylalanine are subjected to mixing treatment, with 5 DEG C/
H is warming up to 110 DEG C, and isothermal reaction 1h obtains eutectic solvent；
(2) be that 1:4 is configured to waste water model with mass ratio by chlorophenol and water, by the waste water model and eutectic solvent with
Mass ratio is that 10:1 is added in reactor, and 0.5h is reacted at 120 DEG C, stops heating after reaction, stands 1h, is layered,
It is separated, thermogravimetric analysis is carried out to the water phase of lower layer, chlorophenol removal rate reaches 98.5%.
Embodiment 7
A method of Phenol for Waste Water pollutant is separated based on amino acids eutectic solvent, comprising the following steps:
(1) 0.16mol (14.81g) glycerine and 0.02mol (2.94g) Pidolidone are subjected to mixing treatment, with 5 DEG C/
H is warming up to 90 DEG C, and isothermal reaction 2.5h obtains eutectic solvent；
(2) be that 1:6 is configured to waste water model with mass ratio by phenol and water, by the waste water model and eutectic solvent with
Mass ratio is that 6:1 is added in reactor, and 6h is reacted at 110 DEG C, stops heating after reaction, stands 0.5h, is layered, into
Row separation carries out thermogravimetric analysis to the water phase of lower layer, and phenol removal rate reaches 95.5%.
Embodiment 8
A method of Phenol for Waste Water pollutant is separated based on amino acids eutectic solvent, comprising the following steps:
(1) 0.2mol (12.42g) ethylene glycol and 0.02mol (3.48g) L-arginine are subjected to mixing treatment, with 5.5
DEG C/h is warming up to 90 DEG C, isothermal reaction 3h obtains eutectic solvent；
(2) be that 1:5 is configured to waste water model with mass ratio by cresols and water, by the waste water model and eutectic solvent with
Mass ratio is that 5:1 is added in reactor, and 5h is reacted at 100 DEG C, stops heating after reaction, stands 1h, is layered, is carried out
Separation carries out thermogravimetric analysis to the water phase of lower layer, and cresols removal rate reaches 98.5%.
It can be obtained by above data, it is provided in an embodiment of the present invention that Phenol for Waste Water class is separated based on amino acids eutectic solvent
The method of pollutant can efficiently separate phenol, cresols, amino phenols, nitrophenols, naphthols in waste water by eutectic solvent
And the phenolic comp ' ds pollutions such as chlorophenol, removal rate >=95%.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of application based on amino acids eutectic solvent in the treatment of waste water, which is characterized in that molten with the eutectic
Agent separates the phenolic comp ' ds pollution in waste water, the alcohol compound and amino acid system that the eutectic solvent is 5-10:1 by molar ratio
?.
2. the application based on amino acids eutectic solvent in the treatment of waste water as described in claim 1, it is characterised in that: institute
State eutectic solvent the preparation method comprises the following steps: carries out mixed processing for the amino acid and alcohol compound, is warming up to 90-120 DEG C,
Isothermal reaction obtains the eutectic solvent until system transparent and homogeneous.
3. the application based on amino acids eutectic solvent in the treatment of waste water as described in claim 1, it is characterised in that: institute
Stating alcohol compound is following general formula CnH2n+2OxAt least one of, wherein 1≤n≤10,1≤x≤n.
4. the application based on amino acids eutectic solvent in the treatment of waste water as described in claim 1, it is characterised in that: institute
Stating amino acid is following general formula R CHNH2At least one of COOH, wherein R is C2-C6 alkenyl, C1~C4 substitution alkyl group
Or unsubstituted alkyl group, nitrogen-containing heterocycle, aromatic radical or naphthenic base, the C1~C4 replace the substituent group of alkyl group to be hydroxyl, carboxylic
One of base, sulfydryl, amino, guanidine radicals or phenyl.
5. it is a kind of based on amino acids eutectic solvent separation Phenol for Waste Water pollutant method, which is characterized in that including with
Lower step:
Eutectic solvent described in claim any one of 1-4 is mixed with the waste water containing phenolic comp ' ds pollution, is heated up
To 80~120 DEG C, it is stirred to react 0.5~10h, stratification carries out separating treatment.
6. the method as claimed in claim 5 based on amino acids eutectic solvent separation Phenol for Waste Water pollutant, special
Sign is: the waste water containing phenolic comp ' ds pollution is 5-10:1 with eutectic solvent mass ratio.
7. the method as claimed in claim 5 based on amino acids eutectic solvent separation Phenol for Waste Water pollutant, special
Sign is: heating rate is 5~5.5 DEG C/h.
8. the method as claimed in claim 5 based on amino acids eutectic solvent separation Phenol for Waste Water pollutant, special
Sign is: the time of repose is 0.5-1.0h.
9. the method as claimed in claim 5 based on amino acids eutectic solvent separation Phenol for Waste Water pollutant, special
Sign is: the phenolic comp ' ds pollution is at least one of phenol, cresols, amino phenols, nitrophenols, naphthols or chlorophenol.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111905805A (en) * | 2020-08-11 | 2020-11-10 | 河北科技大学 | Eutectic solvent, carbon quantum dot, preparation method and application |
| US11136249B1 (en) | 2020-05-26 | 2021-10-05 | Qatar University | Destabilization and separation of high stable colloids |
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| EP2650345A1 (en) * | 2012-04-13 | 2013-10-16 | King Saud University | Method for removal of sulfur containing compounds from hydrocarbon mixtures |
| CN109385271A (en) * | 2018-11-30 | 2019-02-26 | 河北科技大学 | A kind of fluorescent material and preparation method thereof based on amino acid eutectic solvent |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2650345A1 (en) * | 2012-04-13 | 2013-10-16 | King Saud University | Method for removal of sulfur containing compounds from hydrocarbon mixtures |
| CN109385271A (en) * | 2018-11-30 | 2019-02-26 | 河北科技大学 | A kind of fluorescent material and preparation method thereof based on amino acid eutectic solvent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11136249B1 (en) | 2020-05-26 | 2021-10-05 | Qatar University | Destabilization and separation of high stable colloids |
| CN111905805A (en) * | 2020-08-11 | 2020-11-10 | 河北科技大学 | Eutectic solvent, carbon quantum dot, preparation method and application |
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