CN106540653A - A kind of heavy metal absorbent for wastewater treatment and its preparation method and application - Google Patents
A kind of heavy metal absorbent for wastewater treatment and its preparation method and application Download PDFInfo
- Publication number
- CN106540653A CN106540653A CN201611113628.8A CN201611113628A CN106540653A CN 106540653 A CN106540653 A CN 106540653A CN 201611113628 A CN201611113628 A CN 201611113628A CN 106540653 A CN106540653 A CN 106540653A
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- heavy metal
- adsorbent
- polyethylene glycol
- guanyintu
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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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
-
- 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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
Abstract
The invention discloses a kind of heavy metal absorbent for wastewater treatment and its preparation method and application, the adsorbent is made up of the following raw material according to weight portion：31 39 parts of GUANYINTU, 15 parts of thioglycolic acid, 8 16 parts of acrylamide, 23 31 parts of Polyethylene Glycol.GUANYINTU and acrylamide mixed grinding in the present invention, adding Polyethylene Glycol and carrying out supersound process, Deca thioglycolic acid carries out adsorbent obtained in the steps such as microwave treatment, the adsorption efficiency of heavy metal is high, and reusable more than 100 times, there is good governance role to water source heavy metal pollution.Reaction condition of the present invention is gentle, and raw material is few and draws materials extensively, and process operation is simple, low production cost, and economic, environmental protection, yield are high, are suitable to industrialized production.The adsorbent of the present invention can be widely applied to the process of heavy metal wastewater thereby to the clearance of the heavy metal ion in high-concentration waste water up to more than 98%.
Description
Technical field
The present invention relates to environment-friendly materials technical field, specifically a kind of heavy metal absorbent and its system for wastewater treatment
Preparation Method and application.
Background technology
The water pollution that heavy metal ion causes is the severe environmental problem that the whole world faces, and chromium, cadmium and lead are to draw
The Heavy Metals ion of water pollution is played, wherein, the content of cadmium and lead is generally up to, maximum to human health risk.According to generation
Boundary's Health Organization criterion, in drinking water, the highest content of cadmium and lead is not above 0.003 and 0.01mg/g.It is heavy currently used for removing
The method of metal ion mainly includes the methods such as membrance separation, acid-base neutralization, sedimentation, but relatively costly, and periodicity is long and reacts difficult
To control to limit its widespread commercial use.
Heavymetal Wastewater Treatment by Adsorption has efficient, easy and good selective, particularly to low concentration, pollution
Property strong, additive method be difficult to the heavy metal wastewater thereby of effective process there is unique using value.Using absorption method process plating weight
The active charcoal of conventional adsorbent of metallic wastewater, humic acidss, meerschaum, polysaccharide resins etc..But the absorption for industrially using at present
Agent is expensive, and extensively application is restricted, the recovery of heavy metal, and the regeneration and secondary pollution of adsorbent are also that absorption method is processed
Difficult point in heavy metal wastewater thereby.GUANYINTU is to be piled up to form by volcanic ash, is with a kind of widest soil media.But it is single
Only GUANYINTU Adsorption of Heavy Metals efficiency is low, how to make which improve Adsorption of Heavy Metals efficiency to its simple process, is that this patent is needed
The problem of solution.
The content of the invention
It is an object of the invention to provide a kind of heavy metal absorbent for wastewater treatment and its preparation method and application,
To solve the problems, such as to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme：
A kind of heavy metal absorbent for wastewater treatment, is made up of the following raw material according to weight portion：GUANYINTU 31-39
Part, thioglycolic acid 1-5 parts, acrylamide 8-16 parts, Polyethylene Glycol 23-31 parts.
As further scheme of the invention：The heavy metal absorbent for wastewater treatment, by following according to weight
The raw material composition of part：GUANYINTU 33-37 part, thioglycolic acid 2-4 parts, acrylamide 10-14 parts, Polyethylene Glycol 25-29 parts.
As further scheme of the invention：The heavy metal absorbent for wastewater treatment, by following according to weight
The raw material composition of part：35 parts of GUANYINTU, 3 parts of thioglycolic acid, 12 parts of acrylamide, 27 parts of Polyethylene Glycol.
Another object of the present invention is to provide a kind of preparation method of the heavy metal absorbent for wastewater treatment, by following step
It is rapid to constitute：
1) deionized water of 2.6 times of Polyethylene Glycol and its quality is mixed, polyglycol solution is obtained；
2) by GUANYINTU and acrylamide mixed grinding, excessively 120 mesh sieves, polyglycol solution is subsequently adding, 65 are warming up to
DEG C and supersound process 27min at such a temperature, ultrasonic power is 1000W, then Deca thioglycolic acid, is heated up after being added dropwise to complete
Stir process 75min is sealed to 118 DEG C and at such a temperature, then microwave treatment 15min again, microwave power is 1000W, then
Stir at a temperature of 99-101 DEG C to dry, then 4.3h is calcined in 430 DEG C of Muffle furnace and obtain final product adsorbent.
Another object of the present invention is to provide application of the adsorbent in sewage disposal.
Compared with prior art, the invention has the beneficial effects as follows：
GUANYINTU and acrylamide mixed grinding in the present invention, adding Polyethylene Glycol, to carry out supersound process, Deca thio
Glycolic carries out adsorbent obtained in the steps such as microwave treatment, and the adsorption efficiency of heavy metal is high, and reusable 100
More than secondary, there is good governance role to water source heavy metal pollution.Reaction condition of the present invention is gentle, and raw material is few and draws materials wide
General, process operation is simple, low production cost, and yield is high, is suitable to industrialized production.The present invention is suitable by many experiments screening
Raw material, suitable component and suitable preparation parameter, filter out the optimum condition of Adsorption of Heavy Metal Ions.The adsorbent of the present invention
Economic, environmental protection, to the clearance of the heavy metal ion in high-concentration waste water up to more than 98%, is recyclable using rear acid treatment
Heavy metal, then 450 DEG C of high-temperature calcinations are renewable, repeats high using number of times, can be widely applied to the place of heavy metal wastewater thereby
Reason, can overcome high cost in prior art, and Adsorption efficiency is low, many deficiencies such as adsorbent can not regenerate, with important
Social effect.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based in the present invention
Embodiment, the every other embodiment obtained under the premise of creative work is not made by those of ordinary skill in the art, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of heavy metal absorbent for wastewater treatment, by the following raw material according to weight portion
Composition：31 parts of GUANYINTU, 1 part of thioglycolic acid, 8 parts of acrylamide, 23 parts of Polyethylene Glycol.
2.6 times of deionized water of Polyethylene Glycol and its quality is mixed, polyglycol solution is obtained.By GUANYINTU and propylene
Amide mixed grinding, 120 mesh sieves are crossed, be subsequently adding polyglycol solution, be warming up to 65 DEG C and supersound process at such a temperature
27min, ultrasonic power are 1000W, then Deca thioglycolic acid, and 118 DEG C and close at such a temperature are warming up to after being added dropwise to complete
Envelope stir process 75min, then microwave treatment 15min again, microwave power is 1000W, then is stirred at a temperature of 99 DEG C to dry,
Then 4.3h is calcined in 430 DEG C of Muffle furnace obtain final product adsorbent.
Jing is tested repeatedly and is obtained：The adsorption capacity of the adsorbent is 60-70mg/g；The adsorbent reuse 100 times with
On still keep the adsorption capacity of 90-100%.
Embodiment 2
In the embodiment of the present invention, a kind of heavy metal absorbent for wastewater treatment, by the following raw material according to weight portion
Composition：39 parts of GUANYINTU, 5 parts of thioglycolic acid, 16 parts of acrylamide, 31 parts of Polyethylene Glycol.
2.6 times of deionized water of Polyethylene Glycol and its quality is mixed, polyglycol solution is obtained.By GUANYINTU and propylene
Amide mixed grinding, 120 mesh sieves are crossed, be subsequently adding polyglycol solution, be warming up to 65 DEG C and supersound process at such a temperature
27min, ultrasonic power are 1000W, then Deca thioglycolic acid, and 118 DEG C and close at such a temperature are warming up to after being added dropwise to complete
Envelope stir process 75min, then microwave treatment 15min again, microwave power is 1000W, then stir at a temperature of 101 DEG C to
It is dry, then 4.3h is calcined in 430 DEG C of Muffle furnace obtain final product adsorbent.
Jing is tested repeatedly and is obtained：The adsorption capacity of the adsorbent is 60-70mg/g；The adsorbent reuse 100 times with
On still keep the adsorption capacity of 90-100%.
Embodiment 3
In the embodiment of the present invention, a kind of heavy metal absorbent for wastewater treatment, by the following raw material according to weight portion
Composition：33 parts of GUANYINTU, 2 parts of thioglycolic acid, 10 parts of acrylamide, 25 parts of Polyethylene Glycol.
2.6 times of deionized water of Polyethylene Glycol and its quality is mixed, polyglycol solution is obtained.By GUANYINTU and propylene
Amide mixed grinding, 120 mesh sieves are crossed, be subsequently adding polyglycol solution, be warming up to 65 DEG C and supersound process at such a temperature
27min, ultrasonic power are 1000W, then Deca thioglycolic acid, and 118 DEG C and close at such a temperature are warming up to after being added dropwise to complete
Envelope stir process 75min, then microwave treatment 15min again, microwave power is 1000W, then stir at a temperature of 100 DEG C to
It is dry, then 4.3h is calcined in 430 DEG C of Muffle furnace obtain final product adsorbent.
Jing is tested repeatedly and is obtained：The adsorption capacity of the adsorbent is 65-75mg/g；The adsorbent reuse 100 times with
On still keep the adsorption capacity of 95-100%.
Embodiment 4
In the embodiment of the present invention, a kind of heavy metal absorbent for wastewater treatment, by the following raw material according to weight portion
Composition：37 parts of GUANYINTU, 4 parts of thioglycolic acid, 14 parts of acrylamide, 29 parts of Polyethylene Glycol.
2.6 times of deionized water of Polyethylene Glycol and its quality is mixed, polyglycol solution is obtained.By GUANYINTU and propylene
Amide mixed grinding, 120 mesh sieves are crossed, be subsequently adding polyglycol solution, be warming up to 65 DEG C and supersound process at such a temperature
27min, ultrasonic power are 1000W, then Deca thioglycolic acid, and 118 DEG C and close at such a temperature are warming up to after being added dropwise to complete
Envelope stir process 75min, then microwave treatment 15min again, microwave power is 1000W, then stir at a temperature of 100 DEG C to
It is dry, then 4.3h is calcined in 430 DEG C of Muffle furnace obtain final product adsorbent.
Jing is tested repeatedly and is obtained：The adsorption capacity of the adsorbent is 65-75mg/g；The adsorbent reuse 100 times with
On still keep the adsorption capacity of 95-100%.
Embodiment 5
In the embodiment of the present invention, a kind of heavy metal absorbent for wastewater treatment, by the following raw material according to weight portion
Composition：35 parts of GUANYINTU, 3 parts of thioglycolic acid, 12 parts of acrylamide, 27 parts of Polyethylene Glycol.
2.6 times of deionized water of Polyethylene Glycol and its quality is mixed, polyglycol solution is obtained.By GUANYINTU and propylene
Amide mixed grinding, 120 mesh sieves are crossed, be subsequently adding polyglycol solution, be warming up to 65 DEG C and supersound process at such a temperature
27min, ultrasonic power are 1000W, then Deca thioglycolic acid, and 118 DEG C and close at such a temperature are warming up to after being added dropwise to complete
Envelope stir process 75min, then microwave treatment 15min again, microwave power is 1000W, then stir at a temperature of 100 DEG C to
It is dry, then 4.3h is calcined in 430 DEG C of Muffle furnace obtain final product adsorbent.
Jing is tested repeatedly and is obtained：The adsorption capacity of the adsorbent is 70-80mg/g；The adsorbent reuse 100 times with
On still keep the adsorption capacity of 95-100%.
Comparative example 1
In addition to acrylamide is not contained, its material content and preparation process are consistent with embodiment 5.
Jing is tested, and the adsorption capacity of the adsorbent is 10-30mg/g, the adsorbent reuse 5 times after adsorption efficiency meeting
Drop below the 50% of former adsorption capacity.
Comparative example 2
In addition to thioglycolic acid is not contained, its material content and preparation process are consistent with embodiment 5.
Jing is tested, and the adsorption capacity of the adsorbent is 10-30mg/g, the adsorbent reuse 5 times after adsorption efficiency meeting
Drop below the 50% of former adsorption capacity.
Comparative example 3
In addition to acrylamide and thioglycolic acid is not contained, its material content and preparation process are consistent with embodiment 5.
Jing is tested, and the adsorption capacity of the adsorbent is 5-20mg/g, the adsorbent reuse 5 times after adsorption efficiency can under
Fall below the 50% of former adsorption capacity.
Result after adsorbent reactivation obtained in embodiment 1-5 and comparative example 1-3 5 times is as shown in table 1.
Table 1
Therefore, can be drawn by table 1, the adsorption capacity of the GUANYINTU after other Feedstock treatings is big, reuse number of times
It is many.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that those skilled in the art should for clarity
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (5)
1. a kind of heavy metal absorbent for wastewater treatment, it is characterised in that be made up of the following raw material according to weight portion：See
Sound soil 31-39 parts, thioglycolic acid 1-5 parts, acrylamide 8-16 parts, Polyethylene Glycol 23-31 parts.
2. the heavy metal absorbent for wastewater treatment according to claim 1, it is characterised in that by following according to weight
The raw material composition of part：GUANYINTU 33-37 part, thioglycolic acid 2-4 parts, acrylamide 10-14 parts, Polyethylene Glycol 25-29 parts.
3. the heavy metal absorbent for wastewater treatment according to claim 1, it is characterised in that by following according to weight
The raw material composition of part：35 parts of GUANYINTU, 3 parts of thioglycolic acid, 12 parts of acrylamide, 27 parts of Polyethylene Glycol.
4. a kind of preparation method of the heavy metal absorbent for wastewater treatment as described in claim 1-3 is arbitrary, its feature
It is to comprise the steps of：
1) deionized water of 2.6 times of Polyethylene Glycol and its quality is mixed, polyglycol solution is obtained；
2) by GUANYINTU and acrylamide mixed grinding, excessively 120 mesh sieves, polyglycol solution is subsequently adding, 65 DEG C is warming up to simultaneously
Supersound process 27min at such a temperature, ultrasonic power is 1000W, and then Deca thioglycolic acid, is warming up to after being added dropwise to complete
118 DEG C and stir process 75min is sealed at such a temperature, then microwave treatment 15min again, microwave power is 1000W, then
Stir at a temperature of 99-101 DEG C to dry, then 4.3h is calcined in 430 DEG C of Muffle furnace and obtain final product adsorbent.
5. application of the adsorbent as described in claim 1-3 is arbitrary in sewage disposal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611113628.8A CN106540653A (en) | 2016-12-07 | 2016-12-07 | A kind of heavy metal absorbent for wastewater treatment and its preparation method and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611113628.8A CN106540653A (en) | 2016-12-07 | 2016-12-07 | A kind of heavy metal absorbent for wastewater treatment and its preparation method and application |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101455955A (en) * | 2007-12-13 | 2009-06-17 | 中国科学院兰州化学物理研究所 | Clay base composite absorbent and preparation method thereof |
| CN102389776A (en) * | 2011-10-09 | 2012-03-28 | 广东省生态环境与土壤研究所 | Metal heavy absorbent and preparation method and use thereof |
| CN103894016A (en) * | 2014-04-17 | 2014-07-02 | 广州康瑞环保科技有限公司 | Porous filtration medium as well as preparation method thereof |
-
2016
- 2016-12-07 CN CN201611113628.8A patent/CN106540653A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101455955A (en) * | 2007-12-13 | 2009-06-17 | 中国科学院兰州化学物理研究所 | Clay base composite absorbent and preparation method thereof |
| CN102389776A (en) * | 2011-10-09 | 2012-03-28 | 广东省生态环境与土壤研究所 | Metal heavy absorbent and preparation method and use thereof |
| CN103894016A (en) * | 2014-04-17 | 2014-07-02 | 广州康瑞环保科技有限公司 | Porous filtration medium as well as preparation method thereof |
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Application publication date: 20170329 |