CN115505405A - Chlorinated hydrocarbon solubilizing emulsion material based on waste grease and preparation method thereof - Google Patents
Chlorinated hydrocarbon solubilizing emulsion material based on waste grease and preparation method thereof Download PDFInfo
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- 239000000839 emulsion Substances 0.000 title claims abstract description 76
- 239000000463 material Substances 0.000 title claims abstract description 44
- 239000002699 waste material Substances 0.000 title claims abstract description 41
- 230000003381 solubilizing effect Effects 0.000 title claims abstract description 34
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 title claims abstract description 28
- 239000004519 grease Substances 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000003921 oil Substances 0.000 claims abstract description 56
- FCBUKWWQSZQDDI-UHFFFAOYSA-N rhamnolipid Chemical compound CCCCCCCC(CC(O)=O)OC(=O)CC(CCCCCCC)OC1OC(C)C(O)C(O)C1OC1C(O)C(O)C(O)C(C)O1 FCBUKWWQSZQDDI-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000013504 Triton X-100 Substances 0.000 claims abstract description 24
- 229920004890 Triton X-100 Polymers 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000012071 phase Substances 0.000 claims description 69
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 10
- 239000008346 aqueous phase Substances 0.000 claims description 10
- 239000003945 anionic surfactant Substances 0.000 claims description 9
- 239000002736 nonionic surfactant Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000008162 cooking oil Substances 0.000 claims 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 abstract description 18
- 238000005067 remediation Methods 0.000 abstract description 18
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 abstract description 16
- 239000003344 environmental pollutant Substances 0.000 abstract description 14
- 231100000719 pollutant Toxicity 0.000 abstract description 12
- 239000004094 surface-active agent Substances 0.000 abstract description 11
- 239000003876 biosurfactant Substances 0.000 abstract description 9
- 238000011065 in-situ storage Methods 0.000 abstract description 9
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 7
- 239000008157 edible vegetable oil Substances 0.000 abstract description 6
- 239000010806 kitchen waste Substances 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 3
- 230000007935 neutral effect Effects 0.000 abstract description 2
- 239000002352 surface water Substances 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract 1
- 238000005063 solubilization Methods 0.000 description 17
- 230000007928 solubilization Effects 0.000 description 17
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 13
- 239000000243 solution Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000693 micelle Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000005012 migration Effects 0.000 description 3
- 238000013508 migration Methods 0.000 description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000003403 water pollutant Substances 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011066 ex-situ storage Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000219 mutagenic Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- ZPIRTVJRHUMMOI-UHFFFAOYSA-N octoxybenzene Chemical compound CCCCCCCCOC1=CC=CC=C1 ZPIRTVJRHUMMOI-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 238000003786 synthesis reaction Methods 0.000 description 1
- 231100000378 teratogenic Toxicity 0.000 description 1
- 230000003390 teratogenic effect Effects 0.000 description 1
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/42—Ethers, e.g. polyglycol ethers of alcohols or phenols
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/56—Glucosides; Mucilage; Saponins
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/32—Materials not provided for elsewhere for absorbing liquids to remove pollution, e.g. oil, gasoline, fat
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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Abstract
The invention relates to a chlorinated hydrocarbon solubilizing emulsion material based on waste grease and a preparation method thereof. The emulsion material consists of a light oil phase and a water phase, wherein the oil phase is kitchen waste edible oil, the water phase is a compound surfactant solution and comprises 0.45-0.9% of rhamnolipid and 0.05-0.1% of Triton X-100, and the volume ratio of the oil phase to the water phase is 0.25-0.5. The preparation method comprises dissolving two surfactants in water to obtain water phase solution, and gradually adding oil phase while stirring water phase to mix the two. According to the invention, the emulsion material is prepared by compounding the biosurfactant and the waste grease, so that the dissolving efficiency of trichloroethylene in a water phase can be improved by 880 times, and the emulsion material has good pH stability, can be used for solubilizing chlorinated organic pollutants in neutral to alkaline environments, and is expected to be applied to the field of in-situ remediation of pollutants in soil, underground water and surface water.
Description
Technical Field
The invention belongs to the technical field of environmental engineering, and particularly relates to a waste oil-biosurfactant emulsion with solubilizing capability on chlorinated organic pollutants and a preparation method thereof, namely a chlorinated hydrocarbon solubilizing emulsion material based on waste oil and a preparation method thereof.
Background
The chlorohydrocarbon is an important chemical raw material, is widely applied to the fields of industrial washing, clothes degreasing, organic synthesis intermediates and the like, has carcinogenic, teratogenic and mutagenic toxicity, is harmful to human health and ecological safety, and common underground water pollutants comprise Trichloroethylene (TCE), 1-trichloroethane and the like. Since the density of the chlorinated hydrocarbon is higher than that of water and is difficult to dissolve in water, once the chlorinated hydrocarbon enters an underground water environment, the chlorinated hydrocarbon often vertically migrates downwards to enter a low permeability zone to form a heavy non-aqueous phase liquid in a free phase state, and the heavy non-aqueous phase liquid exists for a long time to cause pollution.
The method for repairing the underground water pollutants comprises an ex-situ repair (extraction) method and an in-situ repair method. In recent years, in-situ remediation is the preferred and developing trend of typical organic pollution site remediation such as chlorinated hydrocarbon by virtue of the advantages of low disturbance, relatively low remediation cost and the like. The development of the domestic soil and underground water remediation industry gradually turns to long-acting in-situ treatment, the degradation efficiency and the environmental influence of pollutants are considered in the remediation process, and the development of a green and efficient solubilizing material is beneficial to the application of the in-situ remediation technology in an actual field.
One of the important factors limiting the in situ degradation of chlorinated hydrocarbons is their effectiveness. The chlorinated hydrocarbon mainly has four occurrence states of gas phase, free phase, residual phase and dissolved phase in underground water. The chlorinated hydrocarbon in the dissolved phase is less but directly affects human life and health, while the chlorinated hydrocarbon in the free phase is a main pollution source in underground water and can continuously dissolve pollutants in the underground water to affect the quality safety of the underground water. In the in-situ remediation, a remediation material is generally injected into underground water, and natural hydraulic gradient is utilized to promote the remediation material to contact with pollution so as to improve degradation, so that pollutants and remediation agents mainly react in a water phase, the pollutants are not easy to enter the water phase, so that the remediation efficiency is reduced, particularly in a low-permeability field, the pollutants and the remediation agents have the problem of difficult diffusion, and the water phase dissolution and the fluidity of chlorinated hydrocarbon are required to be enhanced to improve the removal rate of the pollutants.
The surfactant is a compound with both hydrophilic groups and lipophilic groups, and can spontaneously form micelles (external hydrophilic and internal lipophilic) or reverse micelles (external lipophilic and internal hydrophilic) when reaching a certain concentration in an aqueous solution, so that the water-oil interfacial tension is reduced, and the dissolution of pollutants is promoted. When the oil phase liquid enters the inside of the surfactant micelle, the oil phase liquid is uniformly dispersed in water to form opaque emulsion, which can promote the migration of chlorinated hydrocarbon in underground water. The surfactant is combined with the light oil to prepare emulsion for solubilizing chlorohydrocarbon, and by mutual solubility between nonpolar phases, on one hand, the surfactant can provide larger capacity for dissolving chlorohydrocarbon into water; on the other hand, the density of the chlorinated hydrocarbon can be reduced, and the chlorinated hydrocarbon in the bottom plate of the aquifer is brought into the water phase, so that the migration and degradation of the chlorinated hydrocarbon in underground water are facilitated.
The solubilizing emulsion material is mainly used in the fields of cosmetics, oil refining, oil displacement and the like at present, and is gradually applied to the field of environmental remediation in recent years. The commonly used pollutant solubilizing materials are mainly composed of Tween 80, sodium Dodecyl Sulfate (SDS) and other chemical surfactants, and the compounds such as n-octane, n-hexane and the like are used as light oil phases to prepare emulsions or microemulsions, so that the pollutant remediation efficiency can be remarkably enhanced during multiphase extraction or groundwater extraction treatment, but remediation agents injected into groundwater are difficult to recover during in-situ remediation. Therefore, it becomes more important to use solubilizing emulsion materials that are easily degradable and environmentally friendly.
Disclosure of Invention
The invention aims to provide a chlorohydrocarbon solubilization emulsion material based on waste oil and fat, which takes the waste oil and fat as a light oil phase and a biosurfactant as a water phase and is used for solubilizing chlorohydrocarbon, and a preparation method thereof, so as to overcome the problems of low solubilization efficiency of the biosurfactant, potential environmental risks of a chemical surfactant and the like, improve the solubilization of the biosurfactant on chlorinated organic pollutants by adding a small amount of waste oil and fat, realize the treatment of the environmental pollutants, reduce secondary pollution and promote the cyclic utilization of waste resources.
The purpose of the invention is realized by the following technical scheme:
a chlorohydrocarbon solubilizing emulsion material based on waste grease is composed of an oil phase and a water phase; wherein the oil phase is waste grease; the water phase comprises an anionic surfactant and a nonionic surfactant, and the mass ratio of the anionic surfactant to the nonionic surfactant in the water phase is 0.05-0.9% and 0.01-0.25% respectively; the volume ratio of the oil phase to the water phase is 0.25-4.
Further, the oil phase is kitchen waste edible oil; the anionic surfactant is rhamnolipid, the nonionic surfactant is Triton X-100, namely, the surfactant in the water phase is anionic surfactant rhamnolipid and nonionic surfactant Triton X-100 (polyethylene glycol octyl phenyl ether), and a compound solution of the anionic surfactant and the nonionic surfactant is prepared.
Furthermore, the mass ratio of the rhamnolipid in the water phase is 0.45-0.9%, and the mass ratio of the Triton X-100 in the water phase is 0.05-0.1%; the volume ratio of the oil phase to the water phase is 0.25-0.5.
Furthermore, the weight proportion of the rhamnolipid in the water phase is 0.45 percent, and the weight proportion of the Triton X-100 in the water phase is 0.05 percent; the volume ratio of the oil phase to the aqueous phase was 0.25.
The preparation method of the chlorinated hydrocarbon solubilizing emulsion material based on the waste oil comprises the following steps:
A. according to the mass percent of each component in the emulsion, 0.05% -0.9% of rhamnolipid and 0.01% -0.5% of Triton X-100 are respectively weighed, dissolved in deionized water, uniformly mixed, and added with alkali (NaOH) to adjust the pH of the solution to 10 to 13, so as to obtain a water phase;
B. and continuously stirring the aqueous phase solution, slowly adding the waste grease according to the oil-water volume ratio of 0.25-4, and uniformly mixing to obtain the emulsion material.
Compared with the prior art, the invention has the beneficial effects that:
1. the method for preparing the emulsion is simple and feasible, biodegradable, convenient to operate and easy for industrial production.
2. The solubilizing emulsion in the invention is composed of naturally degradable rhamnolipid and waste grease, has small influence on the environment and is not easy to generate secondary pollution.
3. The rhamnolipid used for preparing the emulsion can be generated by microbial fermentation, the light oil phase is kitchen waste edible oil, and the materials for preparing the emulsion are all from waste resources, so that the cyclic utilization of the waste resources is realized.
4. The solubilizing emulsion prepared by the invention has good solubilizing effect on chlorohydrocarbon, the solubilizing efficiency of the solubilizing emulsion is improved by about 125 to 880 times compared with that of chlorohydrocarbon in a dissolved phase in water, the solubility of chlorinated organic pollutants in a water phase can be obviously improved by adding waste oil, and meanwhile, the density of chlorohydrocarbon can be reduced by mutual dissolution of a light oil phase (waste oil kitchen waste edible oil) and chlorohydrocarbon, and the migration of chlorohydrocarbon in the water phase is promoted.
5. The invention provides a preparation method of a solubilizing emulsion, which prepares an opaque emulsion material for solubilizing and repairing underground water chlorohydrocarbon by properly proportioning rhamnolipid, triton X-100 and waste grease.
6. According to the biosurfactant emulsion material for solubilizing underground water chlorohydrocarbons and the preparation method thereof, disclosed by the invention, the biosurfactant rhamnolipid and the chemical surfactant Triton X-100 are compounded and a small amount of waste grease is added, so that the solubilization of chlorinated organic pollutants by the biosurfactant is improved, the problems of low solubilization efficiency of the biosurfactant, potential environmental risks of the chemical surfactant and the like are solved, the environmental pollutant treatment is realized, the secondary pollution is reduced, and the cyclic utilization of waste resources is promoted.
7. The solubilizing emulsion material prepared by the invention has better pH stability, can be used for solubilizing chlorinated organic pollutants in neutral to alkaline environments, and is expected to be applied to the field of in-situ remediation of pollutants in soil, underground water and surface water.
Drawings
FIG. 1 is a graph showing a particle size distribution of emulsion particles;
FIG. 2 is a zeta potential plot of an emulsion;
FIG. 3 is a graph showing the difference in solubilizing ability of chlorinated hydrocarbons between a waste oil emulsion and an n-octane emulsion;
FIG. 4 is a diagram showing the solubilization capacity of the emulsion for trichloroethylene at various pH values.
Detailed Description
The invention is further illustrated by the following specific examples and the accompanying drawings. The following detailed description does not limit the technical solutions of the present invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the scope of the present invention.
Example 1
A chlorohydrocarbon solubilizing emulsion material based on waste oil comprises an oil phase and a water phase, wherein the oil phase is edible oil from kitchen residues, and the water phase comprises anionic surfactant rhamnolipid (the mass ratio of the rhamnolipid in the water phase is 0.05-0.9%) and nonionic surfactant Triton X-100 (the mass ratio of the rhamnolipid in the water phase is 0.01-0.25%); the volume ratio of the oil phase to the water phase is 0.25-4.
The preparation method of the chlorinated hydrocarbon solubilizing emulsion material based on the waste grease comprises the following steps:
A. weighing a proper amount of rhamnolipid (the mass ratio in an aqueous phase is 0.05-0.9%) and Triton X-100 (the mass ratio in the aqueous phase is 0.01-0.25%) according to different proportions of components in the emulsion, dissolving the rhamnolipid and the Triton X-100 in deionized water, uniformly mixing, adding alkali (NaOH) to adjust the pH of the solution to 10-13, and obtaining an aqueous phase solution.
B. And continuously stirring the obtained water phase solution, slowly adding the light oil phase according to a certain proportion (the oil-water volume ratio is 0.25-4), continuously stirring, and uniformly mixing the oil phase and the water phase to obtain the solubilized emulsion material.
Different emulsion materials are prepared according to different proportions (different rhamnolipid concentrations, different Triton X-100 concentrations and different oil phase-water phase volume ratios) in the table 1 for later use.
Example 2
Solubilization of chlorinated hydrocarbons by emulsion materials
Trichloroethylene (TCE) represents chlorinated organic pollutants, 1 mL of TCE is taken to be placed in a 40 mL borosilicate sample bottle, 5mL of the emulsion material in the embodiment 1 is additionally added, the mixture is shaken for 2 hours at room temperature, n-hexane is used for extracting the trichloroethylene in the emulsion after the shaking is finished, and Agilent gas chromatography (7890A) with an ECD detector is used for measuring the content of the trichloroethylene in the n-hexane.
The results of comparing the solubilization capacity of the emulsion material for TCE (260 mg/L compared with trichloroethylene dissolved in pure water) are shown in Table 1, wherein, when the emulsion with 0.45% of rhamnolipid, 0.05% of Triton X-100 and 0.25 of oil-water ratio is higher in the solubilization capacity (dissolution capacity and solubilization capacity) for trichloroethylene, and the content of Triton X-100 in the emulsion system is 0.25%, the solubilization capacity of the emulsion for trichloroethylene is reduced.
TABLE 1 solubilizability of trichloroethylene in emulsion materials of different ratios
| Treatment of | Rhamnolipid concentration (%) | Triton X-100 concentration (%) | Oil phase-water phase ratio | Trichloroethylene dissolved amount (g/L) | Solubilization multiple |
| 1 | 0.09 | 0.01 | 0.25 | 155.9 | 600 |
| 2 | 0.09 | 0.01 | 1 | 158.0 | 607 |
| 3 | 0.09 | 0.01 | 4 | 166.9 | 642 |
| 4 | 0.05 | 0.05 | 0.5 | 220.1 | 846 |
| 5 | 0.05 | 0.05 | 1 | 197.2 | 758 |
| 6 | 0.05 | 0.05 | 2 | 197.8 | 761 |
| 7 | 0.45 | 0.05 | 0.25 | 229.4 | 882 |
| 8 | 0.45 | 0.05 | 0.5 | 204.1 | 785 |
| 9 | 0.45 | 0.05 | 2 | 222.1 | 854 |
| 10 | 0.25 | 0.25 | 0.5 | 32.5 | 125 |
| 11 | 0.25 | 0.25 | 4 | 23.1 | 88.8 |
| 12 | 0.9 | 0.1 | 0.5 | 206.7 | 795 |
| 13 | 0.9 | 0.1 | 2 | 197.3 | 759 |
Example 3
Based on the results of example 2, 0.45% rhamnolipid, 0.05% Triton X-100, and 0.25% oil-water ratio were selected, and the particle size and zeta potential of the particles in the emulsion were measured.
The sample is placed in a cuvette, the particle size and the zeta potential of the emulsion are measured by a nanometer particle size and zeta potential instrument (Malvern Zetasizer Nano ZS 90), and the detection is carried out at normal temperature. The test result of the emulsion particle size is shown in figure 1, and the average particle size is 230 nm; the zeta potential of the emulsion is-58.2 mV (the result is shown in FIG. 2), and it is considered that when the zeta potential of the system is less than-30 mV, a stable suspension can be formed, so that the prepared emulsion micelle has uniform particle size distribution and stable properties.
Example 4
The light oil phase is used for replacing waste oil (kitchen waste edible oil) with normal octane to prepare an emulsion material, and the difference of the solubilization effects of emulsions generated by two different light oil phases on chlorinated hydrocarbon is compared.
An aqueous phase solution was prepared from 0.45% rhamnolipid and 0.05% triton X-100, and two different emulsion materials (an n-octane emulsion material and a waste oil emulsion material) were prepared using waste oil and n-octane as light oil phases (oil-water volume ratio 0.25), respectively, in the same manner as in example 1.
10 ul of TCE and 5mL of n-octane/waste grease emulsion are put in a sample bottle, and the difference of the solubilizing abilities of the two emulsion materials to the TCE is measured, wherein the specific method is the same as that in example 2. As shown in FIG. 3, the emulsion of waste oil and fat had a better effect of solubilizing TCE than the emulsion of n-octane.
Example 5
Effect of emulsions at different pH on the solubilization Capacity of chlorinated hydrocarbons
Weighing appropriate amount of rhamnolipid and Triton X-100, dissolving in water, adjusting pH to 10-14 with NaOH to obtain five kinds of aqueous phase solutions with final concentration of 0.45% rhamnolipid, 0.05% Triton X-100, and pH of 10, 11, 12, 13, and 14, respectively. Emulsion materials at different pH values were prepared at an oil-to-water volume ratio of 0.25, and the specific procedure for preparing the emulsion was the same as in example 1.
The results of determining the solubilization of trichloroethylene by the emulsion under different pH conditions by using a gas chromatography are shown in FIG. 4, the solubilization capacity of the emulsion on trichloroethylene is kept good within the range of pH 10-13, and when the pH reaches 13.5, the solubilization capacity of the emulsion on pollutants is remarkably reduced, which indicates that the emulsion material composed of rhamnolipid, triton X-100 and waste oil has good pH stability.
Claims (7)
1. A chlorohydrocarbon solubilizing emulsion material based on waste grease is characterized by comprising an oil phase and a water phase; wherein the oil phase is waste grease; the water phase comprises an anionic surfactant and a nonionic surfactant, and the mass ratio of the anionic surfactant to the nonionic surfactant in the water phase is 0.05-0.9% and 0.01-0.25% respectively; the volume ratio of the oil phase to the water phase is 0.25-4.
2. The waste oil-and-fat-based chlorinated hydrocarbon-solubilized emulsion material of claim 1, wherein the oil phase is a cooking oil, the anionic surfactant is rhamnolipid, and the nonionic surfactant is Triton X-100.
3. The waste oil and fat-based chlorinated hydrocarbon solubilizing emulsion material as claimed in claim 2, wherein the mass proportion of rhamnolipid in the water phase is 0.45% -0.9%, and the mass proportion of Triton X-100 in the water phase is 0.05% -0.1%; the volume ratio of the oil phase to the water phase is 0.25-0.5.
4. The method for preparing the chlorinated hydrocarbon solubilized emulsion material based on waste oil and fat according to claim 2, comprising the steps of:
A. respectively weighing 0.05-0.9% of rhamnolipid and 0.01-0.25% of Triton X-100 according to the mass percent of each component in the emulsion, dissolving in deionized water, uniformly mixing, adding an alkali to adjust the pH of the solution to 10-13, and obtaining a water phase;
B. and continuously stirring the aqueous phase solution, slowly adding the waste oil according to the oil-water volume ratio of 0.25-4, and uniformly mixing to obtain the emulsion material.
5. The preparation method of the chlorinated hydrocarbon solubilizing emulsion material based on waste oil and fat as claimed in claim 4, wherein in the step A, naOH is added to adjust the pH of the solution to 10-13.
6. The preparation method of the chlorinated hydrocarbon solubilizing emulsion material based on waste oil and fat as claimed in claim 4, wherein in the step A, 0.45% -0.9% of rhamnolipid and 0.05% -0.1% of Triton X-100 are respectively weighed and dissolved in deionized water.
7. The preparation method of the chlorinated hydrocarbon solubilizing emulsion material based on waste oil and fat as claimed in claim 4, wherein in the step B, the waste oil and fat is slowly added according to the oil-water volume ratio of 0.25-0.5.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107674142A (en) * | 2017-10-27 | 2018-02-09 | 常州嘉众新材料科技有限公司 | A kind of preparation method of the filler of efficiently purification phosphatidyl choline |
| CN110698366A (en) * | 2019-10-17 | 2020-01-17 | 吉林大学 | Anionic Gemini surfactant for efficiently solubilizing chlorinated hydrocarbon pollutants and synthesis method thereof |
| CN111378419A (en) * | 2018-12-28 | 2020-07-07 | 天津市海罗兰科技发展股份有限公司 | High-temperature-resistant emulsifier for oil-based drilling fluid and preparation method thereof |
| CN111892117A (en) * | 2020-08-07 | 2020-11-06 | 吉林大学 | Microemulsion for solubilizing chlorinated hydrocarbon pollutants in underground environment and preparation method thereof |
| CN112893441A (en) * | 2021-01-19 | 2021-06-04 | 沈阳大学 | Method for combined enhanced phytoremediation of polycyclic aromatic hydrocarbon-polluted farmland soil |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107674142A (en) * | 2017-10-27 | 2018-02-09 | 常州嘉众新材料科技有限公司 | A kind of preparation method of the filler of efficiently purification phosphatidyl choline |
| CN111378419A (en) * | 2018-12-28 | 2020-07-07 | 天津市海罗兰科技发展股份有限公司 | High-temperature-resistant emulsifier for oil-based drilling fluid and preparation method thereof |
| CN110698366A (en) * | 2019-10-17 | 2020-01-17 | 吉林大学 | Anionic Gemini surfactant for efficiently solubilizing chlorinated hydrocarbon pollutants and synthesis method thereof |
| CN111892117A (en) * | 2020-08-07 | 2020-11-06 | 吉林大学 | Microemulsion for solubilizing chlorinated hydrocarbon pollutants in underground environment and preparation method thereof |
| CN112893441A (en) * | 2021-01-19 | 2021-06-04 | 沈阳大学 | Method for combined enhanced phytoremediation of polycyclic aromatic hydrocarbon-polluted farmland soil |
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