CN105238410A - Soil composite repairing agent - Google Patents
Soil composite repairing agent Download PDFInfo
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- CN105238410A CN105238410A CN201410323877.4A CN201410323877A CN105238410A CN 105238410 A CN105238410 A CN 105238410A CN 201410323877 A CN201410323877 A CN 201410323877A CN 105238410 A CN105238410 A CN 105238410A
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Abstract
The present invention relates to a soil composite repairing agent which is characterized by being prepared from the following components in percentage by weight: 30%-50% of persulfate, 10%-30% of a metal chelating agent, 5%-10% of an auxiliary and 10%-30% of a carrier. The soil composite repairing agent provided by the present invention can be used in a course of repairing polluted soil, so that the content of the pollutes such as organic substances and heavy metals in the soil is decreased to over 80%, thereby playing a role in the deep repairing treatment. The soil composite repairing agent provided by the present invention has the advantages of being low in cost, simple to use, effective and easy to popularize on a large scale, and does not cause secondary pollution.
Description
Technical field
The invention belongs to soil remediation process field in environment protection, in particular, relate to the agent of a kind of soil complex repairation.
Background technology
In recent years, soil pollution has become the subject matter that global environment quality faces, and along with the acceleration of urbanization process, contaminated soil needs to face secondary and uses, and often needs to carry out degree of depth reparation for soil.
Chinese soil pollutes and constitutes a threat to Sustainable Use of Soil Resources and agricultural-food ecological safety.Chinese soil principal pollutant type comprises petroleum-type, polycyclic aromatic hydrocarbons, agricultural chemicals, organochlorine, heavy metal etc.; The whole nation reaches 2,000 ten thousand hectares by heavy metal contamination soil, and wherein severe contamination soil is more than 700,000 hectares, and wherein 130,000 hectare of land are forced to no longer cultivated because cadmium content exceeds standard.
Along with the acceleration of Economic development and urbanization, the contaminated sites that industrial and mining enterprises cause is also very serious.Due to change and the adjustment of the industrial structure and city layout, some contaminating enterprises such as chemical industry, metallurgy moves one after another, and add the bankruptcy of some enterprises, contaminated site constantly produces.Energy-conserving and environment-protective are classified as first of seven great strategy new industries by " " 12 " planning outline " that in March, 2012 puts into effect.Wherein, soil remediation also clearly proposes to need to strengthen Soil Pollution Control supervision and management at the row given priority to of environmental protection industry.
In soil remediation industry, existing soil restoring technology reaches kind more than 100, but conventional severally to have: hot repair is multiple, chemical redemption, biological restoration etc.
Summary of the invention
The present invention is intended to obtain a kind of Chemical deep process and repairs general medicament; by being oxidized, chelating precipitation makes the organism in soil, heavy metal equal size significantly declines; reduce the circulation of objectionable impurities in biologic chain, thus protection is to ecotope and HUMAN HEALTH.
A kind of soil complex repairation provided by the invention agent, is characterized in that, is made up of the component of following weight percent:
Wherein, the present invention's persulphate used is preferably mixture, is selected from the mixture of one or more in the persulfuric acid system oxide compounds such as Potassium Persulphate, potassium hydrogen persulfate, Sodium Persulfate, ammonium persulphate.
The present invention's metal chelator used is preferably heavy metal chelant, is more preferably mixture.Be selected from organic acid or to the mixture of environment without one or more in the sequestrant of potential risk.Comprise citric acid and sodium salt thereof or sylvite, oxalic acid and sodium salt thereof, tartrate and sodium salt thereof or sylvite, ethylenediamine tetraacetic acid (EDTA) (EDTA) and sodium salt thereof or the compound containing sulphur nitrogen class such as sylvite, ethylenediamine disuccinic acid (EDDS) and sodium salt or sylvite, dimethylamino bamic acid and sodium salt thereof etc. particularly.
The present invention's auxiliary agent used comprises dispersion agent, promotor, lubricant, tensio-active agent;
Wherein, dispersion agent can be selected from fatty acid, aliphatic amide type, aliphatic ester, paraffin class, metal soap, the mixture of one or more in low-molecular-weight wax class, preferably use from stearylamide and higher alcohols, vinyl bis-stearamides, glyceryl monostearate (GMS), Tristearoylglycerol (HTG), oleic acid acyl, whiteruss (zero pour is-15 DEG C-35 DEG C), microcrystalline wax, barium stearate (BaSt), Zinic stearas (ZnSt), calcium stearate (CaSt), cadmium stearate (CdSt), Magnesium Stearate (MgSt), copper stearate (CuSt), (average molecular mass is 1500-4000 to polyethylene wax, its softening temperature is 102 DEG C),
Promotor can be selected from aliphatic amide promotor, acid anhydrides promotor, polyetheramine catalyzer, K-61B, CT-152X, triethylene diamine, A-1, A-33, DC-829, tin class promotor, tin protochloride, iron trichloride, to Chlorobenzoic Acid, captax, cobalt naphthenate, cobalt iso-octoate, isocaprylic acid zinc, N, accelerine, N, N-Diethyl Aniline, vanadium phosphate, NA-22, tetramethyl thiourea, vanadium acetylacetonate, methyl ethyl diketone, triphenylphosphine, butyraldehyde-n-aniline condensation thing 808, benzyldimethylamine, N, N-dimethyl open-chain crown ether, triethylamine, hydrogen quinoline, oxine, asccharin, ferrocene, praseodynium aluminium, vulkacit D, DETU, DPG, M, TMTD, BZ, PZ, ZDC, the mixture of one or more in CZ,
Lubricant is selected from the mixture of one or more in mineral lubricant, vegetable lubricant, physical property lubricant, synthetic lubricant, preferably from machinery oil, Viscotrol C, tallow, white oil, silicone oil, fatty acid amide, oleic acid, polyester, synthetic ester, carboxylic acid;
Tensio-active agent is selected from the mixture of one or more in nonionogenic tenside, anion surfactant, cats product, amphoterics, is preferred with fats compound.
The carrier that the present invention adopts comprises stablizer, initiator, catalyzer;
Wherein, stablizer is selected from the mixture of one or more in lead salts, phosphorous acid esters, epoxy compounds class, polyalcohols, metal soap, organic tin, rare earth class stablizer;
Initiator is selected from the mixture of one or more in organo-peroxide, inorganic peroxide, azo, redox type initiators;
Catalyzer is selected from the mixture of one or more in acid, alkali, soluble transition metal compound, peroxide catalyst, solid acid catalyst, organic alkali catalyst, metal catalyst, metal oxide catalyst, complex compound catalyst, rare earth catalyst, molecular sieve catalyst, biological catalyst, nanocatalyst.
Each component is carried out mixing and is the agent of soil complex repairation.
The agent of above-mentioned soil complex repairation can make commodity selling by various ways processing.As: be processed into tablet, circular granular, irregular particle or pulvis finished product.
Above-mentioned preparation, in use, after the agent of soil complex repairation is mixed with the aqueous solution, or stirs the above-mentioned aqueous solution, washed off soil; Or the above-mentioned aqueous solution is joined in perfusion equipment, perfusion is in soil to be repaired.
The equivalent that the amount of persulphate is 0.5-1 extremely Heavy Metals in Contaminated Soils ion in the process used.
The amount of metal chelator is the equivalent of 10-100 extremely Heavy Metals in Contaminated Soils ion.
effect of the present invention:
In the present invention, adopt the object of persulfuric acid oxide compound to be, utilize its oxidation susceptibility strong, oxidising process is long, the permeating speed of slow oxidation matching product in soil, effective large area repair soil, play the effect of deep level of processing, simultaneously non-secondary pollution, without leftover problem.
Specifically, in the persulphate mixture that the present invention preferably adopts, comprise potassium hydrogen persulfate, be a kind of free-pouring white particle powder, soluble in water, having strong oxidizing property, is a kind of very effective oxygenant, sterilizing agent.Its oxidizing property can be utilized to process organic pollutant in soil and other chemical pollutants.Oxidation operation directly can be become small-molecule substance by potassium hydrogen persulfate mixture, effectively reduces TAN in soil.Various harmful mushroom can be killed, cleaning soil simultaneously.
In addition, Sodium Persulfate is a kind of white particle powder, soluble in water, has certain oxidisability, and its aqueous solution can slow releasing oxygen in soil permeability process, plays the effect of oxygenation, activating soil.
Sodium Persulfate can increase the oxygen level in soil, improves the situation of soil compaction.
In addition, in component of the present invention, also containing heavy metal chelant, mainly carry out chelating for the heavy metal ion being difficult in soil remove.Wherein, ethylenediamine tetraacetic acid (EDTA) (EDTA), dimethylamino bamic acid sodium, citric acid (CA), tartrate (TA) and gluconic acid (GA) are the most effective.This type of, heavy metal chelant can pass through the heavy metal ion in absorption, fixing soil, effectively in conjunction with the heavy metal ion in soil, make it to depart from edatope, leave biological cycle, effectively reduce the probability that heavy metal is absorbed by biologic chain, thus reduce soil toxicity.
In addition, in component of the present invention, the auxiliary agent also added is in order to the accessibility of effective improving product in soil, and especially for the soil of oil pollution, auxiliary agent effectively can increase the affinity of product and soil, there will not be the problem of repairing short circuit.
In addition, in component of the present invention, the carrier also added, is the processing feasibility in order to promote composition, commercial specification and appearance requirement and the compound added.That the auxiliary material of general interpolation is stable chemical nature, cheap compound, such as sodium sulfate, magnesium sulfate, wilkinite, zeolite powder etc.
The content that said components is set by the present invention manufactures, and achieves the organic cooperation between each component, the complementary function achieving each component.This composition can organism, heavy metal equal size in the efficient oxidation soil, makes its total amount decline about 80-95%.
Composition of the present invention can efficiently process contaminated soil, plays the effect of oxidation reparation, deep level of processing, and then improves soil quality.
It is worthy of note, above-mentioned composition, after being processed into finished product, directly can dissolve washed off soil, or adds soil remediation perfusion equipment, infiltrates soil.Comprehensive action is played for soil remediation, is specially adapted to the soil system of advanced treatment.
Embodiment:
Embodiment 1:
1, (kilogram) is filled a prescription:
2, above-mentioned each component is mixed, make pulvis.
3, enter quality test, encapsulate with PE bag.
4, use:
Drip washing: be prepared into eluent after this product with deionized water being dissolved, and treat that the soil of drip washing fully mixes; Or apply eluent by injector well etc. to soil, make it permeate downwards, be combined with pollutent through pollution zone.
Perfusion: this product is spent ion-solubility, fully stirs, uses special perfusion equipment to inject soil.
Embodiment 2:
1, (kilogram) is filled a prescription:
2, above-mentioned each component is mixed, make pulvis.
3, enter quality test, encapsulate with PE bag.
4, use:
Drip washing: be prepared into eluent after this product with deionized water being dissolved, and treat that the soil of drip washing fully mixes; Or apply eluent by injector well etc. to soil, make it permeate downwards, be combined with pollutent through pollution zone.
Perfusion: this product is spent ion-solubility, fully stirs, uses special perfusion equipment to inject soil.
Embodiment 3:
1, (kilogram) is filled a prescription:
| Potassium hydrogen persulfate/Sodium Persulfate (90/10) | 40 |
| GA | 20 |
| HTG/ asccharin (50/50) | 8 |
| Sodium sulfate | 10 |
2, above-mentioned each component is mixed, make pulvis.
3, enter quality test, encapsulate with PE bag.
4, use:
Drip washing: be prepared into eluent after this product with deionized water being dissolved, and treat that the soil of drip washing fully mixes; Or apply eluent by injector well etc. to soil, make it permeate downwards, be combined with pollutent through pollution zone.
Perfusion: this product is spent ion-solubility, fully stirs, uses special perfusion equipment to inject soil.
Embodiment 4:
1, (kilogram) is filled a prescription:
2, above-mentioned each component is mixed, make pulvis.
3, enter quality test, encapsulate with PE bag.
4, use:
Drip washing: be prepared into eluent after this product with deionized water being dissolved, and treat that the soil of drip washing fully mixes; Or apply eluent by injector well etc. to soil, make it permeate downwards, be combined with pollutent through pollution zone.
Perfusion: this product is spent ion-solubility, fully stirs, uses special perfusion equipment to inject soil.
Embodiment 5:
1, (kilogram) is filled a prescription:
| Ammonium persulphate/Sodium Persulfate (90/10) | 35 |
| EDTA/CA(20/80) | 15 |
| Cobalt iso-octoate/palmitic acid (50/50) | 10 |
| Zeolite powder/XT-1 (80/20) | 30 |
2, above-mentioned each component is mixed, make pulvis.
3, enter quality test, encapsulate with PE bag.
4, use:
Drip washing: be prepared into eluent after this product with deionized water being dissolved, and treat that the soil of drip washing fully mixes; Or apply eluent by injector well etc. to soil, make it permeate downwards, be combined with pollutent through pollution zone.
Perfusion: this product is spent ion-solubility, fully stirs, uses special perfusion equipment to inject soil.
Embodiment 6:
1, (kilogram) is filled a prescription:
2, above-mentioned each component is mixed, make pulvis.
3, enter quality test, encapsulate with PE bag.
4, use:
Drip washing: be prepared into eluent after this product with deionized water being dissolved, and treat that the soil of drip washing fully mixes; Or apply eluent by injector well etc. to soil, make it permeate downwards, be combined with pollutent through pollution zone.
Perfusion: this product is spent ion-solubility, fully stirs, uses special perfusion equipment to inject soil.
the effect of embodiment:
By the use of above-mentioned 1-6 product, according to biodegradation test, can organism in the efficient oxidation soil, its total amount is declined and is respectively 76%, 90%, 86%, 90,95% and 80%.
Claims (10)
1. the agent of soil complex repairation, is characterized in that, is made up of the component of following weight percent:
2. a kind of soil complex repairation as claimed in claim 1 agent, is characterized in that: described persulphate is the mixture of one or more be selected from Potassium Persulphate, potassium hydrogen persulfate, Sodium Persulfate, ammonium persulphate.
3. a kind of soil complex repairation as claimed in claim 1 agent, is characterized in that: described metal chelator is selected from organic acid or to the mixture of environment without one or more in the sequestrant of potential risk.
4. a kind of soil complex repairation as claimed in claim 1 agent, is characterized in that: described metal chelator is selected from the mixture of one or more in citric acid and sodium salt thereof or sylvite, oxalic acid and sodium salt thereof, tartrate and sodium salt thereof or sylvite, edta and its sodium salt or sylvite, ethylenediamine disuccinic acid and sodium salt thereof or sylvite, dimethylamino bamic acid and sodium salt thereof.
5. a kind of soil complex repairation as claimed in claim 1 agent, is characterized in that: described auxiliary agent comprises the composition of one or more in dispersion agent, promotor, lubricant, tensio-active agent;
Wherein, described dispersion agent can be selected from the mixture of one or more in fatty acid, aliphatic amide type, aliphatic ester, paraffin class, metal soap, low-molecular-weight wax class;
Described promotor can be selected from aliphatic amide promotor, acid anhydrides promotor, polyetheramine catalyzer, K-61B, CT-152X, triethylene diamine, A-1, A-33, DC-829, tin class promotor, tin protochloride, iron trichloride, to Chlorobenzoic Acid, captax, cobalt naphthenate, cobalt iso-octoate, isocaprylic acid zinc, N, accelerine, N, N-Diethyl Aniline, vanadium phosphate, NA 1, tetramethyl thiourea, vanadium acetylacetonate, methyl ethyl diketone, triphenylphosphine, butyraldehyde-n-aniline condensation thing 808, benzyldimethylamine, N, N-dimethyl open-chain crown ether, triethylamine, hydrogen quinoline, oxine, asccharin, ferrocene, praseodynium aluminium, vulkacit D, DETU, DPG, M, TMTD, BZ, PZ, ZDC, the mixture of one or more in CZ,
Described lubricant is selected from the mixture of one or more in mineral lubricant, vegetable lubricant, physical property lubricant, synthetic lubricant;
Described tensio-active agent is selected from the mixture of one or more in nonionogenic tenside, anion surfactant, cats product, amphoterics.
6. a kind of soil complex repairation as claimed in claim 1 agent, is characterized in that: described carrier comprises the composition of one or more in stablizer, initiator, catalyzer;
Wherein, described stablizer is selected from the mixture of one or more in lead salts, phosphorous acid esters, epoxy compounds class, polyalcohols, metal soap, organic tin, rare earth class stablizer;
Described initiator is selected from the mixture of one or more in organo-peroxide, inorganic peroxide, azo, redox type initiators;
Described catalyzer is selected from the mixture of one or more in acid, alkali, soluble transition metal compound, peroxide catalyst, solid acid catalyst, organic alkali catalyst, metal catalyst, metal oxide catalyst, complex compound catalyst, rare earth catalyst, molecular sieve catalyst, biological catalyst, nanocatalyst.
7. a kind of soil complex repairation agent as described in as arbitrary in claim 1-6, is characterized in that: during use, the agent of described soil complex repairation is mixed with the aqueous solution;
The above-mentioned aqueous solution is stirred, washed off soil;
Or the above-mentioned aqueous solution is joined in perfusion equipment, perfusion is in soil to be repaired.
8. a kind of soil complex repairation as claimed in claim 7 agent, is characterized in that: in the described aqueous solution, the amount of persulphate is the equivalent of 0.5 ~ 1 extremely Heavy Metals in Contaminated Soils ion.
9. a kind of soil complex repairation as claimed in claim 7 agent, is characterized in that: in the described aqueous solution, the amount of metal chelator is the equivalent of 10 ~ 100 extremely Heavy Metals in Contaminated Soils ions.
10. a kind of soil complex repairation as claimed in claim 7 agent, is characterized in that: the agent of described soil complex repairation can be processed into tablet, circular granular, irregular particle or pulvis finished product.
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|---|---|---|---|
| CN201410323877.4A CN105238410A (en) | 2014-07-08 | 2014-07-08 | Soil composite repairing agent |
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| CN201410323877.4A CN105238410A (en) | 2014-07-08 | 2014-07-08 | Soil composite repairing agent |
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| CN201410323877.4A Pending CN105238410A (en) | 2014-07-08 | 2014-07-08 | Soil composite repairing agent |
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| CN105860988A (en) * | 2016-06-06 | 2016-08-17 | 佛山市聚成生化技术研发有限公司 | Method for preparing degradable soil improvement chelating agent and prepared degradable soil improvement chelating agent |
| CN105950180A (en) * | 2016-06-27 | 2016-09-21 | 安徽金联地矿科技有限公司 | Remediation agent for soil polluted by heavy metals and remediation method thereof |
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| CN106085440A (en) * | 2016-05-31 | 2016-11-09 | 汪立刚 | A kind of heavy-metal contaminated soil is combined eluent |
| CN106734142A (en) * | 2016-12-05 | 2017-05-31 | 环境保护部华南环境科学研究所 | Eluent and application method that a kind of cupro-nickel combined pollution place drip washing is repaired |
| CN106903160A (en) * | 2016-11-07 | 2017-06-30 | 保定学院 | A kind of Copper Mine Abandoned Place heavy metal pollution of soil restorative procedure |
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| CN112041096A (en) * | 2018-03-01 | 2020-12-04 | 阿科玛股份有限公司 | Soil treatment using peroxides |
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| CN106085440A (en) * | 2016-05-31 | 2016-11-09 | 汪立刚 | A kind of heavy-metal contaminated soil is combined eluent |
| CN105860988A (en) * | 2016-06-06 | 2016-08-17 | 佛山市聚成生化技术研发有限公司 | Method for preparing degradable soil improvement chelating agent and prepared degradable soil improvement chelating agent |
| CN106085451A (en) * | 2016-06-21 | 2016-11-09 | 刘月华 | A kind of dibenzanthracene contaminated soil remediation agent and preparation method thereof |
| CN105950180A (en) * | 2016-06-27 | 2016-09-21 | 安徽金联地矿科技有限公司 | Remediation agent for soil polluted by heavy metals and remediation method thereof |
| CN106903160A (en) * | 2016-11-07 | 2017-06-30 | 保定学院 | A kind of Copper Mine Abandoned Place heavy metal pollution of soil restorative procedure |
| CN106903160B (en) * | 2016-11-07 | 2018-06-08 | 保定学院 | A kind of Copper Mine Abandoned Place heavy metal pollution of soil restorative procedure |
| CN106734142B (en) * | 2016-12-05 | 2021-04-30 | 环境保护部华南环境科学研究所 | Eluting agent for eluting and repairing copper-nickel composite polluted site and using method |
| CN106734142A (en) * | 2016-12-05 | 2017-05-31 | 环境保护部华南环境科学研究所 | Eluent and application method that a kind of cupro-nickel combined pollution place drip washing is repaired |
| CN108130088A (en) * | 2018-01-17 | 2018-06-08 | 深圳市晟祥知识产权有限公司 | A kind of saline-alkali land soil conditioner and its preparation method and application |
| US11773325B2 (en) | 2018-03-01 | 2023-10-03 | Arkema Inc. | Soil treatment using peroxide |
| CN112041096A (en) * | 2018-03-01 | 2020-12-04 | 阿科玛股份有限公司 | Soil treatment using peroxides |
| CN108485671A (en) * | 2018-03-28 | 2018-09-04 | 石河子大学 | A kind of cadmium pollution soil modifying agent and preparation method thereof and cadmium pollution soil modification method |
| CN108485671B (en) * | 2018-03-28 | 2020-04-17 | 石河子大学 | Cadmium-polluted soil conditioner, preparation method thereof and cadmium-polluted soil conditioning method |
| CN110681687A (en) * | 2018-07-06 | 2020-01-14 | 周丽娴 | Neutral soil heavy metal cleaning agent and cleaning method thereof |
| CN109794220B (en) * | 2019-01-31 | 2022-03-22 | 河北工业大学 | Method for treating organic compounds in soil by using tailings |
| CN109794220A (en) * | 2019-01-31 | 2019-05-24 | 河北工业大学 | A method of utilizing organic compound in tailings glass soil |
| CN110201998A (en) * | 2019-06-05 | 2019-09-06 | 上海大学 | A kind of method that sudangrass repairs pyrene and nickel combined contamination soil |
| CN110606790A (en) * | 2019-09-12 | 2019-12-24 | 北京康地宝生物技术有限公司 | Soil improvement repairing agent and preparation method thereof |
| CN112625689A (en) * | 2019-09-24 | 2021-04-09 | 中国石油化工股份有限公司 | Soil composite eluting agent containing degradable chelating agent and method for repairing soil |
| CN112723835A (en) * | 2021-01-28 | 2021-04-30 | 上海瑢端金属冶炼有限公司 | Cement modifier containing saline soil and preparation method thereof |
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| CN114192570A (en) * | 2021-12-13 | 2022-03-18 | 东北农业大学 | Method for restoring soil polluted by high chlorinated organic compounds |
| CN114192570B (en) * | 2021-12-13 | 2024-01-19 | 东北农业大学 | Repairing method for soil polluted by high-chlorinated organic compounds |
| CN114685018A (en) * | 2022-06-01 | 2022-07-01 | 河北协同化学有限公司 | Treating agent for adsorbing heavy metals in livestock manure and application thereof |
| CN114854426A (en) * | 2022-06-06 | 2022-08-05 | 中铝环保生态技术(湖南)有限公司 | Remediation agent for heavy metal contaminated soil treatment and preparation method thereof |
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