CN107955618A - A kind of soil stabilizer of heavy metal pollution and its preparation method and application - Google Patents
A kind of soil stabilizer of heavy metal pollution and its preparation method and application Download PDFInfo
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- CN107955618A CN107955618A CN201711129659.7A CN201711129659A CN107955618A CN 107955618 A CN107955618 A CN 107955618A CN 201711129659 A CN201711129659 A CN 201711129659A CN 107955618 A CN107955618 A CN 107955618A
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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
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of soil stabilizer of heavy metal pollution and its preparation method and application, the soil stabilizer, includes according to the raw material of parts by weight：Red beautiful 30 40 parts of soil, 11 19 parts of caffeic acid, 37 parts of cobalt naphthenate, 15 25 parts of jade powder, 11 19 parts of sodium lactate, 59 parts of dimethyl carbonate.Red beautiful soil is crushed, cobalt naphthenate solution is added and heats sealing stirring, adds dimethyl carbonate stirring, mixture A is made in centrifugation washing；Jade powder is ground, adds coffee acid solution, heating seals stirring, adds sodium lactate solution and mixture A, ultrasound, stirs to doing, calcine to obtain the final product.The present invention has good stabilization effect to the heavy metal in soil or organic pollutant；And over time, it is possible to achieve to the degradation of halo, bromo organic matter, cut down total amount of organic；Stabilisation speed is fast, and dosage is small, and stabilization effect is good.
Description
Technical field
The present invention relates to soil treatment technical field, the specifically a kind of soil stabilizer of heavy metal pollution and its preparation side
Method and application.
Background technology
In recent years, heavy metal pollution event happens occasionally, and especially soil pollution by heavy metal problem is increasingly showing, China
Soil pollution area is increasing year by year, is not effectively controlled also, has become one of important environmental problem.For a huge sum of money
The repairing and treating of dependent territory earth, stabilization technology are a kind of more mature and economically viable methods, at home and abroad there is tool at present
Body case study on implementation.But from the point of view of application, mainly repaired using cement class reagent as stabilizer, with such reagent
Increase-volume be stabilized than the problem of big, landfill storage capacity is big, also so that soil or other solid wastes generation hardening, increase-volume etc. are asked
Topic, is unfavorable for follow-up disposal and utilization.
The content of the invention
It is an object of the invention to provide a kind of soil stabilizer of heavy metal pollution and its preparation method and application, with solution
Problem certainly proposed in the above background technology.
To achieve the above object, the present invention provides following technical solution：
A kind of soil stabilizer of heavy metal pollution, includes according to the raw material of parts by weight：Red 30-40 parts of soil of jade, caffeic acid
11-19 parts, 3-7 parts of cobalt naphthenate, 15-25 parts of jade powder, 11-19 parts of sodium lactate, 5-9 parts of dimethyl carbonate.
As the further scheme of the present invention：The soil stabilizer of the heavy metal pollution, according to the raw material bag of parts by weight
Include：Red 32-38 parts of soil of jade, 13-17 parts of caffeic acid, 4-6 parts of cobalt naphthenate, 18-22 parts of jade powder, 13-17 parts of sodium lactate, carbonic acid
6-8 parts of dimethyl ester.
As the further scheme of the present invention：The soil stabilizer of the heavy metal pollution, according to the raw material bag of parts by weight
Include：Red beautiful 35 parts of soil, 15 parts of caffeic acid, 5 parts of cobalt naphthenate, 20 parts of jade powder, 15 parts of sodium lactate, 7 parts of dimethyl carbonate.
A kind of preparation method of the soil stabilizer of heavy metal pollution, comprises the following steps：
1) ethanol of 18-20 times of cobalt naphthenate and its quality is mixed, cobalt naphthenate solution is made；By sodium lactate and its matter
The deionized water mixing of 10-12 times of amount, is made sodium lactate solution；4-5 times of deionized water of caffeic acid and its quality is mixed, is made
Obtain coffee acid solution；
2) red beautiful soil ground, cross 120-150 mesh sieves, then added cobalt naphthenate solution, be warming up to 72-75 DEG C and at this
At a temperature of seal stir process 1-1.2h, then heat to 88-90 DEG C and add dimethyl carbonate, continue to stir at such a temperature
45-50min, centrifuges washing and mixture A is made；
3) jade powder ground, cross 120-150 mesh sieves, added coffee acid solution, insert in reaction kettle and at 70-72 DEG C
At a temperature of seal stir process 1.3-1.5h, then add sodium lactate solution and mixture A, be then down to 55-60 DEG C and ultrasound
30-40min is handled, then to doing, 3-4h is then calcined in 400-420 DEG C of Muffle furnace is for stirring at a temperature of 95-105 DEG C
Obtain soil stabilizer.
As the further scheme of the present invention：In step 2), mixing speed 200-250r/min.
As the further scheme of the present invention：In step 3), ultrasonic power 700W.
As the further scheme of the present invention：In step 3), mixing speed 150-180r/min.
Another object of the present invention is to provide application of the soil stabilizer in heavy-metal contaminated soil processing.
Another object of the present invention is to provide application of the soil stabilizer in polycyclic aromatic hydrocarbon organic contamination processing.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention is using stabilizer made from above-mentioned raw materials and preparation process to the heavy metal or organic pollution in soil
Thing has good stabilization effect；And over time, it is possible to achieve the degraded to halo, bromo organic matter is made
With reduction total amount of organic；Stabilisation speed is fast, and dosage is small, and stabilization effect is good, reduces the leaching poison of contaminated soil
Property, biological effectiveness, ecological risk and human health risk.Raw material of the present invention is simple, preparation process is simple, will not produce secondary
Pollution, engineering construction is convenient, and treating capacity is big, and cost is low, and fast and efficiently product stability is good, suitable for industrialized production.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical solution in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's all other embodiments obtained without making creative work, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of soil stabilizer of heavy metal pollution, including following raw material：Red jade soil 30kg, coffee
Coffee acid 11kg, cobalt naphthenate 3kg, jade powder 15kg, sodium lactate 11kg, dimethyl carbonate 5kg.
18 times of ethanol of cobalt naphthenate and its quality is mixed, cobalt naphthenate solution is made；By sodium lactate and its quality 10
Deionized water mixing again, is made sodium lactate solution；4 times of deionized water of caffeic acid and its quality is mixed, caffeic acid is made
Solution.By red beautiful soil grinding, 120 mesh sieves are crossed, then add cobalt naphthenate solution, 72 DEG C is warming up to and seals at such a temperature and stir
Processing 1h is mixed, 88 DEG C is then heated to and adds dimethyl carbonate, continues to stir 45min at such a temperature, centrifuges washing
Mixture A is made；Mixing speed is 200r/min, centrifugal rotational speed 3000r/min, centrifuges 10min, and washing uses deionized water.
Jade powder is ground, crosses 120 mesh sieves, adds coffee acid solution, inserts in reaction kettle and is sealed at a temperature of 70 DEG C at stirring
1.3h, mixing speed 150r/min are managed, sodium lactate solution and mixture A is then added, is then down to 55 DEG C and is ultrasonically treated
30min, ultrasonic power 700W, then stirred at a temperature of 100 DEG C to dry, mixing speed 150r/min, then at 400 DEG C
Muffle furnace in calcine 3h up to soil stabilizer.
Embodiment 2
In the embodiment of the present invention, a kind of soil stabilizer of heavy metal pollution, including following raw material：Red jade soil 40kg, coffee
Coffee acid 19kg, cobalt naphthenate 7kg, jade powder 25kg, sodium lactate 19kg, dimethyl carbonate 9kg.
20 times of ethanol of cobalt naphthenate and its quality is mixed, cobalt naphthenate solution is made；By sodium lactate and its quality 12
Deionized water mixing again, is made sodium lactate solution；5 times of deionized water of caffeic acid and its quality is mixed, caffeic acid is made
Solution.By red beautiful soil grinding, 150 mesh sieves are crossed, then add cobalt naphthenate solution, 75 DEG C is warming up to and seals at such a temperature and stir
Processing 1.2h is mixed, 90 DEG C is then heated to and adds dimethyl carbonate, continues to stir 50min at such a temperature, centrifugation is washed
Wash obtained mixture A；Mixing speed is 250r/min.Jade powder is ground, crosses 150 mesh sieves, adds coffee acid solution, is inserted anti-
Answer in kettle and stir process 1.5h is sealed at a temperature of 72 DEG C, mixing speed 180r/min, then adds sodium lactate solution
With mixture A, be then down to 60 DEG C and be ultrasonically treated 40min, ultrasonic power 700W, then stir at a temperature of 100 DEG C to
Dry, mixing speed 180r/min, then calcines 4h up to soil stabilizer in 420 DEG C of Muffle furnace.
Embodiment 3
In the embodiment of the present invention, a kind of soil stabilizer of heavy metal pollution, including following raw material：Red jade soil 32kg, coffee
Coffee acid 13kg, cobalt naphthenate 4kg, jade powder 18kg, sodium lactate 13kg, dimethyl carbonate 6kg.
19 times of ethanol of cobalt naphthenate and its quality is mixed, cobalt naphthenate solution is made；By sodium lactate and its quality 11
Deionized water mixing again, is made sodium lactate solution；5 times of deionized water of caffeic acid and its quality is mixed, caffeic acid is made
Solution.By red beautiful soil grinding, 150 mesh sieves are crossed, then add cobalt naphthenate solution, 75 DEG C is warming up to and seals at such a temperature and stir
Processing 1.2h is mixed, 89 DEG C is then heated to and adds dimethyl carbonate, continues to stir 50min at such a temperature, centrifugation is washed
Wash obtained mixture A；Mixing speed is 250r/min.Jade powder is ground, crosses 150 mesh sieves, adds coffee acid solution, is inserted anti-
Answer in kettle and stir process 1.5h is sealed at a temperature of 71 DEG C, mixing speed 180r/min, then adds sodium lactate solution
With mixture A, be then down to 60 DEG C and be ultrasonically treated 40min, ultrasonic power 700W, then stir at a temperature of 100 DEG C to
Dry, mixing speed 180r/min, then calcines 4h up to soil stabilizer in 420 DEG C of Muffle furnace.
Embodiment 4
In the embodiment of the present invention, a kind of soil stabilizer of heavy metal pollution, including following raw material：Red jade soil 38kg, coffee
Coffee acid 17kg, cobalt naphthenate 6kg, jade powder 22kg, sodium lactate 17kg, dimethyl carbonate 8kg.
19 times of ethanol of cobalt naphthenate and its quality is mixed, cobalt naphthenate solution is made；By sodium lactate and its quality 11
Deionized water mixing again, is made sodium lactate solution；5 times of deionized water of caffeic acid and its quality is mixed, caffeic acid is made
Solution.By red beautiful soil grinding, 150 mesh sieves are crossed, then add cobalt naphthenate solution, 75 DEG C is warming up to and seals at such a temperature and stir
Processing 1.2h is mixed, 89 DEG C is then heated to and adds dimethyl carbonate, continues to stir 50min at such a temperature, centrifugation is washed
Wash obtained mixture A；Mixing speed is 250r/min.Jade powder is ground, crosses 150 mesh sieves, adds coffee acid solution, is inserted anti-
Answer in kettle and stir process 1.5h is sealed at a temperature of 71 DEG C, mixing speed 180r/min, then adds sodium lactate solution
With mixture A, be then down to 60 DEG C and be ultrasonically treated 40min, ultrasonic power 700W, then stir at a temperature of 100 DEG C to
Dry, mixing speed 180r/min, then calcines 4h up to soil stabilizer in 420 DEG C of Muffle furnace.
Embodiment 5
In the embodiment of the present invention, a kind of soil stabilizer of heavy metal pollution, including following raw material：Red jade soil 35kg, coffee
Coffee acid 15kg, cobalt naphthenate 5kg, jade powder 20kg, sodium lactate 15kg, dimethyl carbonate 7kg.
19 times of ethanol of cobalt naphthenate and its quality is mixed, cobalt naphthenate solution is made；By sodium lactate and its quality 11
Deionized water mixing again, is made sodium lactate solution；5 times of deionized water of caffeic acid and its quality is mixed, caffeic acid is made
Solution.By red beautiful soil grinding, 150 mesh sieves are crossed, then add cobalt naphthenate solution, 75 DEG C is warming up to and seals at such a temperature and stir
Processing 1.2h is mixed, 89 DEG C is then heated to and adds dimethyl carbonate, continues to stir 50min at such a temperature, centrifugation is washed
Wash obtained mixture A；Mixing speed is 250r/min.Jade powder is ground, crosses 150 mesh sieves, adds coffee acid solution, is inserted anti-
Answer in kettle and stir process 1.5h is sealed at a temperature of 71 DEG C, mixing speed 180r/min, then adds sodium lactate solution
With mixture A, be then down to 60 DEG C and be ultrasonically treated 40min, ultrasonic power 700W, then stir at a temperature of 100 DEG C to
Dry, mixing speed 180r/min, then calcines 4h up to soil stabilizer in 420 DEG C of Muffle furnace.
Comparative example 1
In addition to cobalt naphthenate is not contained, its raw material and preparation process are consistent with embodiment 5.
Comparative example 2
Only red beautiful soil, its preparation process are consistent with embodiment 5.
Comparative example 3
Only red beautiful soil, cobalt naphthenate, its preparation process are consistent with embodiment 5.
Comparative example 4
Each raw material is directly mixed, adds the other materials that embodiment 5 is added, stirs to doing, stirs at a temperature of 100 DEG C
It is 180r/min to mix speed, and 4h is then calcined in 420 DEG C of Muffle furnace up to soil stabilizer.The additive amount and reality of each raw material
It is consistent to apply example 5.
Embodiment 6
Anhui somewhere is contaminated by heavy metals, and the heavy metal in the soil is mainly chromium, nickel, lead, and maximum concentration is respectively
973mg/kg, 2385mg/kg and 758mg/kg.After determining pollution range and depth after testing, after above-mentioned soil is dug out respectively
Stirred evenly with the soil stabilizer of embodiment 1-5, comparative example 1-4.After maintenance 7 days, the heavy-metal contaminated soil is detected
Leaching Heavy Metals and content.The results are shown in Table 1.
Table 1
| Cadmium content (mg/kg) | Arsenic content (mg/kg) | Chromium content (mg/kg) | |
| Embodiment 1 | 2.3 | Do not detect | 3.5 |
| Embodiment 2 | 0.8 | Do not detect | 1.2 |
| Embodiment 3 | Do not detect | Do not detect | Do not detect |
| Embodiment 4 | Do not detect | Do not detect | Do not detect |
| Embodiment 5 | Do not detect | Do not detect | Do not detect |
| Comparative example 1 | 535 | 1032 | 365 |
| Comparative example 2 | 958 | 2163 | 732 |
| Comparative example 3 | 902 | 1985 | 701 |
| Comparative example 4 | 326 | 865 | 308 |
The leaching of heavy metal in soil after the present invention is handled using soil stabilizer made from above-mentioned raw materials and preparation process
Levels are substantially less than comparative example 1-4, and embodiment 3-5 more excellent is not detect, and the present invention has pole to heavy metal contaminants
For excellent stabilization.
Embodiment 7
Anhui somewhere is polycyclic aromatic hydrocarbons contaminated, and the polycyclic aromatic hydrocarbon in the soil is mainly benzo (a) pyrene, benzo (b) fluoranthene,
Cmax is 8.6205mg/kg and 10.9842mg/kg.After determining pollution range and depth after testing, above-mentioned soil is dug out
The soil stabilizer respectively with embodiment 1-5, comparative example 1-4 stirs evenly afterwards.After maintenance 12 days, the heavy metal pollution is detected
The polycyclic aromatic hydrocarbon leaching concentration of soil.The results are shown in Table 2.
Table 2
The present invention using benzo (a) pyrene in soil after soil stabilizer processing made from above-mentioned raw materials and preparation process not
Detection, processing benzo (b) fluoranthene also simply detect 0.0005-0.0008mg/kg in embodiment 1-2, and other embodiments 3-5 is not
Detection, the present invention have extremely excellent deoxidization, degradation stabilization to polycyclic aromatic hydrocarbon organic pollution.
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 without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than described above limits, 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 the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (9)
1. a kind of soil stabilizer of heavy metal pollution, it is characterised in that include according to the raw material of parts by weight：Red jade soil 30-40
Part, 11-19 parts of caffeic acid, 3-7 parts of cobalt naphthenate, 15-25 parts of jade powder, 11-19 parts of sodium lactate, 5-9 parts of dimethyl carbonate.
2. the soil stabilizer of heavy metal pollution according to claim 1, it is characterised in that according to the raw material bag of parts by weight
Include：Red 32-38 parts of soil of jade, 13-17 parts of caffeic acid, 4-6 parts of cobalt naphthenate, 18-22 parts of jade powder, 13-17 parts of sodium lactate, carbonic acid
6-8 parts of dimethyl ester.
3. the soil stabilizer of heavy metal pollution according to claim 1, it is characterised in that according to the raw material bag of parts by weight
Include：Red beautiful 35 parts of soil, 15 parts of caffeic acid, 5 parts of cobalt naphthenate, 20 parts of jade powder, 15 parts of sodium lactate, 7 parts of dimethyl carbonate.
A kind of 4. preparation method of the soil stabilizer of heavy metal pollution as described in claim 1-3 is any, it is characterised in that
Comprise the following steps：
1) ethanol of 18-20 times of cobalt naphthenate and its quality is mixed, cobalt naphthenate solution is made；By sodium lactate and its quality
10-12 times of deionized water mixing, is made sodium lactate solution；4-5 times of deionized water of caffeic acid and its quality is mixed, is made
Coffee acid solution；
2) red beautiful soil ground, cross 120-150 mesh sieves, then added cobalt naphthenate solution, be warming up to 72-75 DEG C and in the temperature
Lower sealing stir process 1-1.2h, then heats to 88-90 DEG C and adds dimethyl carbonate, continues to stir 45- at such a temperature
50min, centrifuges washing and mixture A is made；
3) jade powder ground, cross 120-150 mesh sieves, add coffee acid solution, inserted in reaction kettle and in 70-72 DEG C of temperature
Lower sealing stir process 1.3-1.5h, then adds sodium lactate solution and mixture A, is then down to 55-60 DEG C and is ultrasonically treated
30-40min, then stirring to doing, then calcines 3-4h up to soil in 400-420 DEG C of Muffle furnace at a temperature of 95-105 DEG C
Earth stabilizer.
5. the preparation method of the soil stabilizer of heavy metal pollution according to claim 4, it is characterised in that step 2)
In, mixing speed 200-250r/min.
6. the preparation method of the soil stabilizer of heavy metal pollution according to claim 4, it is characterised in that step 3)
In, ultrasonic power 700W.
7. the preparation method of the soil stabilizer of heavy metal pollution according to claim 4, it is characterised in that step 3)
In, mixing speed 150-180r/min.
8. application of the soil stabilizer in heavy-metal contaminated soil processing as described in claim 1-3 is any.
9. application of the soil stabilizer in polycyclic aromatic hydrocarbon organic contamination processing as described in claim 1-3 is any.
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| CN201711129659.7A CN107955618A (en) | 2017-11-15 | 2017-11-15 | A kind of soil stabilizer of heavy metal pollution and its preparation method and application |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343357A (en) * | 2011-08-25 | 2012-02-08 | 上海市环境科学研究院 | Stabilizer suitable for heavy metal contaminated soil and application method thereof |
| CN103436265A (en) * | 2013-08-23 | 2013-12-11 | 付融冰 | Reductive degradable stabilizer of polluted soil, bottom mud and sludge as well as preparation method and using method of stabilizer |
| CN103755497A (en) * | 2013-12-25 | 2014-04-30 | 合肥华创现代农业科技有限公司 | Compound fertilizer with soil activator and preparation method thereof |
| CN104004524A (en) * | 2014-05-29 | 2014-08-27 | 江苏上田环境修复有限公司 | Environmental-friendly heavy metal stabilizer and application method thereof |
| CN106693884A (en) * | 2016-12-07 | 2017-05-24 | 郑州丽福爱生物技术有限公司 | Heavy metal adsorbent and preparing method and application thereof |
-
2017
- 2017-11-15 CN CN201711129659.7A patent/CN107955618A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343357A (en) * | 2011-08-25 | 2012-02-08 | 上海市环境科学研究院 | Stabilizer suitable for heavy metal contaminated soil and application method thereof |
| CN103436265A (en) * | 2013-08-23 | 2013-12-11 | 付融冰 | Reductive degradable stabilizer of polluted soil, bottom mud and sludge as well as preparation method and using method of stabilizer |
| CN103755497A (en) * | 2013-12-25 | 2014-04-30 | 合肥华创现代农业科技有限公司 | Compound fertilizer with soil activator and preparation method thereof |
| CN104004524A (en) * | 2014-05-29 | 2014-08-27 | 江苏上田环境修复有限公司 | Environmental-friendly heavy metal stabilizer and application method thereof |
| CN106693884A (en) * | 2016-12-07 | 2017-05-24 | 郑州丽福爱生物技术有限公司 | Heavy metal adsorbent and preparing method and application thereof |
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