CN108176367A - A kind of heavy metal absorbent and its preparation method and application - Google Patents
A kind of heavy metal absorbent and its preparation method and application Download PDFInfo
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- CN108176367A CN108176367A CN201810062849.XA CN201810062849A CN108176367A CN 108176367 A CN108176367 A CN 108176367A CN 201810062849 A CN201810062849 A CN 201810062849A CN 108176367 A CN108176367 A CN 108176367A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
- B01J20/205—Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/206—Manganese or manganese compounds
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
Abstract
The invention discloses a kind of heavy metal absorbents and its preparation method and application.The heavy metal absorbent includes the raw material of following parts by weight：6 17 parts of crystalline flake graphite alkene, 8 15 parts of Sodium Aescinate, 7 11 parts of sodium benzoate, 6 10 parts of dioctyl sodium sulfosuccinate, 8 12 parts of zinc methionine, 4 11 parts of phloroglucin, 5 10 parts of hydrated magnesium silicate superfine powder, 48 parts of tree ash.The heavy metal absorbent of the present invention can effectively carry out heavy metal-polluted water process, the content of aboveground vegetation part and under ground portion cadmium can be reduced for soil remediation, adsorption effect is good, raw material is less, preparation process is low, industrialized production is advantageously implemented, is had a wide range of application, market popularization value is good.
Description
Technical field
The present invention relates to a kind of adsorbent, specifically a kind of heavy metal absorbent and its preparation method and application.
Background technology
What heavy metal wastewater thereby referred to discharge in the industrial processes such as mining and metallurgy, machine-building, chemical industry, electronics, instrument contains weight
The waste water of metal.Heavy metal (such as containing cadmium, nickel, mercury, zinc) waste water is to an environmental pollution most serious and the mankind is endangered maximum
One of industrial wastewater, water quality and quantity is related with production technology.Heavy metal pollution of soil (heavy metal pollution
Of the soil) refer to due to mankind's activity, the content of the minor metallic element in soil in the soil is more than background value, mistake
Too high levels caused by amount deposition, are referred to as heavy metal pollution of soil.Heavy metal-polluted soil refers to since mankind's activity is by metal
The phenomenon that being added in soil, heavy metal in soil is caused to be apparently higher than primary content and eco-environmental quality caused to deteriorate.
Heavy metal has toxicity big, is not easy to be metabolized in the environment, is easily bioaccumulation and has the spies such as biological amplification
Point not only pollutes environment, also the existence of the serious threat mankind and biology.At present, people have heavy metal pollution problem relatively
In-depth study.Graphene has that large specific surface area, absorption property be strong, radiation resistance as a kind of New Two Dimensional carbon material
The advantages that good, presents good application prospect in terms of traditional adsorbent is substituted.But the existing suction containing graphene
Attached dose there are still the shortcomings of application range is small, adsorption effect is poor, raw material is complicated.
Invention content
The purpose of the present invention is to provide a kind of heavy metal absorbent and its preparation method and application, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the present invention provides following technical solution：
A kind of heavy metal absorbent, the heavy metal absorbent include the raw material of following parts by weight：Crystalline flake graphite alkene 6-
17 parts, 8-15 parts of Sodium Aescinate, 7-11 parts of sodium benzoate, 6-10 parts of dioctyl sodium sulfosuccinate, 8-12 parts of zinc methionine,
4-11 parts of phloroglucin, 5-10 parts of hydrated magnesium silicate superfine powder, 4-8 parts of tree ash.
As further embodiment of the present invention：The heavy metal absorbent includes the raw material of following parts by weight：Scale stone
Black alkene 8-15 parts, 10-12 parts of Sodium Aescinate, 9-11 parts of sodium benzoate, 7-9 parts of dioctyl sodium sulfosuccinate, zinc methionine
9-11 parts, 5-10 parts of phloroglucin, 6-9 parts of hydrated magnesium silicate superfine powder, 5-7 parts of tree ash.
As further embodiment of the present invention：The heavy metal absorbent includes the raw material of following parts by weight：Scale stone
Black 12 parts of alkene, 11 parts of Sodium Aescinate, 10 parts of sodium benzoate, 9 parts of dioctyl sodium sulfosuccinate, 10 parts of zinc methionine, isophthalic
8 parts of triphenol, 8 parts of hydrated magnesium silicate superfine powder, 6 parts of tree ash.
A kind of preparation method of heavy metal absorbent, includes the following steps：(1) by Sodium Aescinate, sodium benzoate and egg
Propylhomoserin zinc mixes, and adds in 40-55 parts of water, is uniformly mixed at 45-60 DEG C, mixing speed 200-300r/min；(2)
Upper step gains with the 75% of 15-25 parts ethyl alcohol are mixed, then add in dioctyl sodium sulfosuccinate and phloroglucin,
1-3h, mixing speed 125-200r/min are stirred to react at 70-85 DEG C；(3) by crystalline flake graphite alkene, hydrated magnesium silicate superfine powder
It is uniformly mixed to be placed at 500-800 DEG C with tree ash and calcines 30-50min；200-300 mesh is ground up, sieved after cooling；(4) will
Step (2) gains are mixed with step (3) gains, and 25-40min, mixing speed 250- are stirred to react at 90-105 DEG C
400r/min；(5) by upper step gains drying to get.
As further embodiment of the present invention：Step (1) mixes Sodium Aescinate, sodium benzoate and zinc methionine, adds
Enter in 45 parts of water, be uniformly mixed at 50 DEG C, mixing speed 270r/min.
As further embodiment of the present invention：Step (2) mixes upper step gains with the 75% of 20 parts ethyl alcohol, then
Dioctyl sodium sulfosuccinate and phloroglucin are added in, 2h, mixing speed 180r/min are stirred to react at 75 DEG C.
As further embodiment of the present invention：Step (3) is by crystalline flake graphite alkene, hydrated magnesium silicate superfine powder and tree ash
It is uniformly mixed to be placed at 700 DEG C and calcines 40min；250 mesh are ground up, sieved after cooling
As further embodiment of the present invention：Step (4) mixes step (2) gains with step (3) gains, 95
30min, mixing speed 300r/min are stirred to react at DEG C.
A kind of application of heavy metal absorbent in the fields such as sewage disposal, soil remediation.
Compared with prior art, the beneficial effects of the invention are as follows：
The heavy metal absorbent of the present invention can effectively carry out heavy metal-polluted water process, for soil remediation with can reducing plant
Upper part and the content of under ground portion cadmium, adsorption effect is good, raw material is less, and preparation process is low, is advantageously implemented industrialized production,
Have a wide range of application, market popularization value is good.
Specific embodiment
The technical solution of this patent is described in more detail With reference to embodiment.
Embodiment 1
A kind of heavy metal absorbent, the heavy metal absorbent include the raw material of following parts by weight：Crystalline flake graphite alkene 6
Part, 8 parts of Sodium Aescinate, 7 parts of sodium benzoate, 6 parts of dioctyl sodium sulfosuccinate, 8 parts of zinc methionine, 4 parts of phloroglucin, water
Close 5 parts of magnesium silicate superfine powder, 4 parts of tree ash.
A kind of preparation method of heavy metal absorbent, includes the following steps：(1) by Sodium Aescinate, sodium benzoate and egg
Propylhomoserin zinc mixes, and adds in 40 parts of water, is uniformly mixed at 45 DEG C, mixing speed 200r/min；It (2) will be obtained by upper step
Object is mixed with the 75% of 15 parts ethyl alcohol, then adds in dioctyl sodium sulfosuccinate and phloroglucin, is stirred at 70 DEG C anti-
Answer 1h, mixing speed 125r/min；(3) by crystalline flake graphite alkene, hydrated magnesium silicate superfine powder and tree ash after mixing
It is placed at 500 DEG C and calcines 30min；200 mesh are ground up, sieved after cooling；(4) step (2) gains and step (3) gains are mixed
It closes, 25min, mixing speed 250r/min is stirred to react at 90 DEG C；(5) by upper step gains drying to get.
Embodiment 2
A kind of heavy metal absorbent, the heavy metal absorbent include the raw material of following parts by weight：Crystalline flake graphite alkene 17
Part, 15 parts of Sodium Aescinate, 11 parts of sodium benzoate, 10 parts of dioctyl sodium sulfosuccinate, 12 parts of zinc methionine, phloroglucin 11
Part, 10 parts of hydrated magnesium silicate superfine powder, 8 parts of tree ash.
A kind of preparation method of heavy metal absorbent, includes the following steps：(1) by Sodium Aescinate, sodium benzoate and egg
Propylhomoserin zinc mixes, and adds in 55 parts of water, is uniformly mixed at 60 DEG C, mixing speed 300r/min；It (2) will be obtained by upper step
Object is mixed with the 75% of 25 parts ethyl alcohol, then adds in dioctyl sodium sulfosuccinate and phloroglucin, is stirred at 85 DEG C anti-
Answer 3h, mixing speed 200r/min；(3) by crystalline flake graphite alkene, hydrated magnesium silicate superfine powder and tree ash after mixing
It is placed at 800 DEG C and calcines 50min；300 mesh are ground up, sieved after cooling；(4) step (2) gains and step (3) gains are mixed
It closes, 40min, mixing speed 400r/min is stirred to react at 105 DEG C；(5) by upper step gains drying to get.
Embodiment 3
A kind of heavy metal absorbent, the heavy metal absorbent include the raw material of following parts by weight：Crystalline flake graphite alkene 12
Part, 11 parts of Sodium Aescinate, 10 parts of sodium benzoate, 9 parts of dioctyl sodium sulfosuccinate, 10 parts of zinc methionine, phloroglucin 8
Part, 8 parts of hydrated magnesium silicate superfine powder, 6 parts of tree ash.
A kind of preparation method of heavy metal absorbent, includes the following steps：(1) by Sodium Aescinate, sodium benzoate and egg
Propylhomoserin zinc mixes, and adds in 45 parts of water, is uniformly mixed at 50 DEG C, mixing speed 270r/min.It (2) will be obtained by upper step
Object is mixed with the 75% of 20 parts ethyl alcohol, then adds in dioctyl sodium sulfosuccinate and phloroglucin, is stirred at 75 DEG C anti-
Answer 2h, mixing speed 180r/min.(3) by crystalline flake graphite alkene, hydrated magnesium silicate superfine powder and tree ash after mixing
It is placed at 700 DEG C and calcines 40min；250 mesh (4) are ground up, sieved after cooling to mix step (2) gains and step (3) gains
It closes, 30min, mixing speed 300r/min is stirred to react at 95 DEG C.(5) by upper step gains drying to get.
Embodiment 4
A kind of heavy metal absorbent, the heavy metal absorbent include the raw material of following parts by weight：Crystalline flake graphite alkene 8
Part, 10 parts of Sodium Aescinate, 9 parts of sodium benzoate, 7 parts of dioctyl sodium sulfosuccinate, 9 parts of zinc methionine, 5 parts of phloroglucin,
6 parts of hydrated magnesium silicate superfine powder, 5 parts of tree ash.
A kind of preparation method of heavy metal absorbent, includes the following steps：(1) by Sodium Aescinate, sodium benzoate and egg
Propylhomoserin zinc mixes, and adds in 42 parts of water, is uniformly mixed at 48 DEG C, mixing speed 225r/min；It (2) will be obtained by upper step
Object is mixed with the 75% of 18 parts ethyl alcohol, then adds in dioctyl sodium sulfosuccinate and phloroglucin, is stirred at 72 DEG C anti-
Answer 1.5h, mixing speed 150r/min；(3) crystalline flake graphite alkene, hydrated magnesium silicate superfine powder and tree ash are uniformly mixed
It is placed at 620 DEG C and calcines 35min；220 mesh are ground up, sieved after cooling；(4) by step (2) gains and step (3) gains
Mixing, is stirred to react 32min, mixing speed 320r/min at 98 DEG C；(5) by upper step gains drying to get.
Embodiment 5
A kind of heavy metal absorbent, the heavy metal absorbent include the raw material of following parts by weight：Crystalline flake graphite alkene 15
Part, 12 parts of Sodium Aescinate, 11 parts of sodium benzoate, 9 parts of dioctyl sodium sulfosuccinate, 11 parts of zinc methionine, phloroglucin 10
Part, 9 parts of hydrated magnesium silicate superfine powder, 7 parts of tree ash.
A kind of preparation method of heavy metal absorbent, includes the following steps：(1) by Sodium Aescinate, sodium benzoate and egg
Propylhomoserin zinc mixes, and adds in 52 parts of water, is uniformly mixed at 55 DEG C, mixing speed 280r/min；It (2) will be obtained by upper step
Object is mixed with the 75% of 22 parts ethyl alcohol, then adds in dioctyl sodium sulfosuccinate and phloroglucin, is stirred at 82 DEG C anti-
Answer 2.5h, mixing speed 185r/min；(3) crystalline flake graphite alkene, hydrated magnesium silicate superfine powder and tree ash are uniformly mixed
It is placed at 750 DEG C and calcines 45min；260 mesh are ground up, sieved after cooling；(4) by step (2) gains and step (3) gains
Mixing, is stirred to react 36min, mixing speed 340r/min at 102 DEG C；(5) by upper step gains drying to get.
Comparative example 1
In addition to Sodium Aescinate is not added in formula, other preparation processes are consistent with embodiment 5.
Comparative example 2
In addition to sodium benzoate is not added in formula, other preparation processes are consistent with embodiment 5.
Comparative example 3
In addition to Sodium Aescinate and sodium benzoate are not added in formula, other preparation processes are consistent with embodiment 5.
Experimental example 1
Adsorbent finished product 100mg/L prepared by Application Example 5 and comparative example 1-3 carries out heavy metal containing wastewater treatment, processing
Effect is shown in Table 1, unit (mg/L)：
Table 1
| Project | COD | SS | Zn2+ | Cu2+ | Pd2+ | Cd2+ | Chromium | Manganese |
| Water sample | 208 | 139 | 67 | 65 | 6.3 | 48 | 10.3 | 5.7 |
| Embodiment 5 | 28 | 7.1 | 0.65 | 0.4 | 0.08 | 0.01 | 0.07 | 0.001 |
| Comparative example 1 | 53 | 28 | 1.82 | 1.87 | 0.48 | 0.52 | 0.24 | 0.095 |
| Comparative example 2 | 70 | 37 | 2.33 | 1.68 | 0.35 | 0.68 | 0.17 | 0.062 |
| Comparative example 3 | 85 | 45 | 3.14 | 2.55 | 0.69 | 0.52 | 0.32 | 0.137 |
Experimental example 2
Certain southern heavy-metal contaminated soil is taken to do the absorption of wheat pot experiment, respectively Example 3, comparative example 1-3
Agent is diluted to the suspension of 5wt% with deionized water, and each suspension is added in corresponding basin in soil；And set blank control
Group does not add adsorbent in the basin of blank control group in soil.The end of the year is sowed, and is gathered in when close ripe at the beginning of 6 months next years, measures wheat
The cadmium content of different parts, the results are shown in Table 2.
Table 2
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be under the premise of this patent objective not be departed from the knowledge that one skilled in the relevant art has
It makes a variety of changes.
Claims (9)
1. a kind of heavy metal absorbent, which is characterized in that the heavy metal absorbent includes the raw material of following parts by weight：Scale
6-17 parts of graphene, 8-15 parts of Sodium Aescinate, 7-11 parts of sodium benzoate, 6-10 parts of dioctyl sodium sulfosuccinate, methionine
8-12 parts of zinc, 4-11 parts of phloroglucin, 5-10 parts of hydrated magnesium silicate superfine powder, 4-8 parts of tree ash.
2. heavy metal absorbent according to claim 1, which is characterized in that the heavy metal absorbent includes following weight
The raw material of number：8-15 parts of crystalline flake graphite alkene, 10-12 parts of Sodium Aescinate, 9-11 parts of sodium benzoate, two butyric acid dioctyl ester sulfonic acid
7-9 parts of sodium, 9-11 parts of zinc methionine, 5-10 parts of phloroglucin, 6-9 parts of hydrated magnesium silicate superfine powder, 5-7 parts of tree ash.
3. heavy metal absorbent according to claim 1, which is characterized in that the heavy metal absorbent includes following weight
The raw material of number：12 parts of crystalline flake graphite alkene, 11 parts of Sodium Aescinate, 10 parts of sodium benzoate, 9 parts of dioctyl sodium sulfosuccinate,
10 parts of zinc methionine, 8 parts of phloroglucin, 8 parts of hydrated magnesium silicate superfine powder, 6 parts of tree ash.
4. a kind of preparation method of heavy metal absorbent as described in any one of claims 1-3, which is characterized in that including following step
Suddenly：（1）Sodium Aescinate, sodium benzoate and zinc methionine are mixed, adds in 40-55 parts of water, is stirred at 45-60 DEG C
Uniformly, mixing speed 200-300r/min；（2）Upper step gains with the 75% of 15-25 parts ethyl alcohol are mixed, are then added in
Dioctyl sodium sulfosuccinate and phloroglucin are stirred to react 1-3h, mixing speed 125-200r/min at 70-85 DEG C；
（3）Crystalline flake graphite alkene, hydrated magnesium silicate superfine powder and tree ash are uniformly mixed to be placed at 500-800 DEG C and calcine 30-
50min；200-300 mesh is ground up, sieved after cooling；（4）By step（2）Gains and step（3）Gains mix, in 90-105
25-40min, mixing speed 250-400r/min are stirred to react at DEG C；（5）By upper step gains drying to get.
5. the preparation method of heavy metal absorbent as claimed in claim 4, which is characterized in that step（1）By Sodium Aescinate,
Sodium benzoate and zinc methionine mixing, add in 45 parts of water, are uniformly mixed at 50 DEG C, mixing speed 270r/min.
6. the preparation method of heavy metal absorbent as claimed in claim 4, which is characterized in that step（2）By upper step gains
Ethyl alcohol with the 75% of 20 parts mixes, and then adds in dioctyl sodium sulfosuccinate and phloroglucin, is stirred to react at 75 DEG C
2h, mixing speed 180r/min.
7. the preparation method of heavy metal absorbent as claimed in claim 4, which is characterized in that step（3）By crystalline flake graphite alkene,
Hydrated magnesium silicate superfine powder and tree ash, which are uniformly mixed to be placed at 700 DEG C, calcines 40min；250 mesh are ground up, sieved after cooling.
8. the preparation method of heavy metal absorbent as claimed in claim 4, which is characterized in that step（4）By step（2）Gained
Object and step（3）Gains mix, and 30min, mixing speed 300r/min are stirred to react at 95 DEG C.
9. a kind of heavy metal absorbent as described in any one of claims 1-3 answering in sewage disposal and soil remediation field
With.
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