CN103436265A - Reductive degradable stabilizer of polluted soil, bottom mud and sludge as well as preparation method and using method of stabilizer - Google Patents

Reductive degradable stabilizer of polluted soil, bottom mud and sludge as well as preparation method and using method of stabilizer Download PDF

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CN103436265A
CN103436265A CN2013103739523A CN201310373952A CN103436265A CN 103436265 A CN103436265 A CN 103436265A CN 2013103739523 A CN2013103739523 A CN 2013103739523A CN 201310373952 A CN201310373952 A CN 201310373952A CN 103436265 A CN103436265 A CN 103436265A
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mud
deoxidization
clay mineral
bed mud
degradation
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CN103436265B (en
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付融冰
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付融冰
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Abstract

The invention relates to a reductive degradable stabilizer for heavy metal and/or organic matter polluted soil as well as a preparation method and use of the stabilizer. The reductive degradable stabilizer can be used for quickly and efficiently stabilizing the heavy metals and the organic matters in the polluted soil by virtue of a synergistic effect of a plurality of active ingredients, and can also be used for further lowering the content of the organic matters, so that the purpose of lowering leaching toxicity of pollutants and health risk is realized; therefore, the reductive degradable stabilizer is a novel and efficient stabilizer which has the advantages of being wide in treatment substrate, capable of reducing the total amount of the organic matters, good in stabilizing effect, convenient to operate and the like, and has a wide range of application in the governance fields including polluted soil, bottom mud, sludge and the like.

Description

A kind of contaminated soil, bed mud and mud deoxidization, degradation stablizer and preparation method thereof and using method
Technical field
The present invention relates to stablizer and preparation method thereof and the using method of contaminated soil, bed mud and mud, relate to especially a kind of contaminated soil, bed mud and mud deoxidization, degradation stablizer and preparation method thereof and using method, belong to environmental improvement and protection field.
Background technology
China's accumulation in long-term mining smelting and course of industrialization has formed comparatively serious heavy metal and Organic pollutants, along with the quickening of industry restructuring and the quick propelling of urbanization process, the contaminated site of leaving over after the resettlement of a large amount of industrial enterprises comes out, environment and HUMAN HEALTH have been caused to serious threat, before the soil recycling, needed badly and administer and repair.
On the other hand, the heavy metal in contaminated river, lake and organism finally enter in settling through long-term physical and chemical process and bioprocess, and these bed muds are faced with and deal carefully with handling problems after dredging.
Again on the one hand, industrial enterprise can produce a large amount of containing heavy metal and organic mud in process of production, and the final product of municipal sewage plant's sewage disposal also contains plurality of heavy metal and organism, the annual wet mud produced of China surpasses 100,000,000 tons, and the safe handling of these Contaminated Sewage Sludges is follow-up recycling restraining factors.
In sum; these contain heavy metal and organic soil, bed mud and mud; all be faced with active demand how to carry out safe handling; to they carry out safety, quick, to process efficiently be one of emphasis problem in current environmental improvement and protection field and research topic, is also the hot subject in this field at present.
From reducing the angle of pollutent health risk, the stable curing technology is a kind of comparatively ripe and cost-effective technology, and application is very extensive abroad, is that technology is at most the most widely used in heavy-metal contaminated soil, solid waste treatment field.
In recent years, domestic this technology of also bringing into use, but the solidifying agent that this technology is used mainly adopts the hydraulic materials such as cement, lime, gypsum, often makes soil or other solid waste produce the problems such as sclerosis, increase-volume, is unfavorable for follow-up disposal and utilization.
With curing technology, compare, stablizer does not have significant change to the physical behavior of soil, bed mud, mud etc., but can be fixed up heavy metal and organism by effects such as absorption, precipitations, reach and reduced the Leaching of pollutent and the purpose of health risk.
At present stablizer commonly used can be divided into clay mineral, Rock Phosphate (72Min BPL), iron and manganese oxides, silicon class material, organic sequestering agent etc., mainly by changing heavy metal, in soil, has a form, makes it by activated state, change stable state into, thereby reduces its toxic action; Perhaps by its adsorption, organism is adsorbed stable.
CN1187139C discloses a kind for the treatment of process of industrial heavy metal solid waste, described method has been used the novel concrete solidification matrix, its composition and ratio is: city garbage burning flying ash 70-90 % by weight, aluminum-containing additive 3-10 % by weight, calcareous control agent 7-20 % by weight, this solidification matrix is mixed with industrial heavy metal solid slag or mud, after adding water, stir, just the plastic cement block stone cured body that obtains, imbed landfill yard after the normal temperature maintenance.
CN1630941A discloses a kind of macromolecular heavy metal chelating agent of stabilization of dangerous waste materials, and described sequestrant is to form basic framework with polyamines or polymine, reacts synthetic liquid or its crystallisate under alkaline condition with dithiocarbonic anhydride.
CN101642612A discloses a kind of sequestrant of stabilizing heavy metal, the effective constituent of described sequestrant is the cyclic polyamines compounds, comprise two piperidines or amino-ethyl piperazidine, it can form the complex compound of stable chemical nature with heavy metal, can process refuse or waste liquid containing heavy metal.
CN102101123B discloses a kind of heavy-metal contaminated soil restorative procedure, described method is to have used heavy-metal contaminated soil to repair medicament, and described medicament is obtained by mixing submicron or Nanoscale Iron, flyash, part by weight containing magnesium preparation and boron-moisten soil according to 5-25:40-50:1-10:15-50.After this repairs chemicals treatment, can meet (GB15618-1995) requirement of secondary standard value of China's " standard of soil environment quality ".
CN102357518A discloses a kind of chemical stabilization compound drug that reduces the heavy metal-polluted soil leaching concentration, and described medicament comprises 5-10 weight part calcium hydroxide, 2-5 weight part flyash and 0.1-2 weight part sodium carbonate, through mixing just, obtains.
CN102380505B discloses a kind of method of using nano zero valence iron to process heavy-metal contaminated soil or mud, and soil or mud are fully mixed with Zero-valent Iron, then adopts the nano zero valence iron that magnet will contain heavy metal to separate, thereby is removed heavy metal.
A kind of stablizer of heavy-metal contaminated soil is disclosed in CN102343357B, described stablizer comprises heavy metal chelant, gelling material, clay mineral and alkali-activator, but the toxicity of the heavy metal contaminants in stabilization soil contaminant reducing after use.
CN102389776A discloses a kind of heavy metal absorbent, described sorbent material is that to take the inorganic mineral of processing through tensio-active agent be carrier, the load organic complexing agent is prepared from, described inorganic mineral is wilkinite, kaolin, diatomite, zeolite, aluminum oxide or ferriferous oxide, described tensio-active agent is cationic surfactant or nonionic surface active agent, and described organic complex is to contain sulfydryl or contain amino compound.
CN102732259A discloses a kind of heavy metal contamination crystallization and has sealed stablizer, and described stablizer comprises phosphoric acid salt or vitriol 15-25 % by weight, heavy metal chelant 1-5 % by weight, gelling material 20-40 % by weight, clay mineral 30-60 % by weight.
CN102921142A discloses a kind of heavy metal contaminants immobilized reagent composition, and described immobilized reagent comprises the phosphoric acid salt of 5-70 % by weight, the metallic sulfide of 1-60 % by weight, the metal oxide of 5-80 % by weight, the strong base weak acid salt compound of 5-65 % by weight, the metal(lic)stabilizer of 0.1-15 % by weight and the metal chelator of 0.1-10 % by weight.
CN102965116A discloses a kind of heavy metal stabilizer, and described stablizer comprises the phosphoric acid salt of 40-50 % by weight, the wilkinite of 20-25 % by weight, the fluorapatite of 25-30 % by weight, the sodium chloride/potassium chloride of 4-6 % by weight.
CN102965119A discloses a kind of heavy metal stabilizer, described stablizer is to take polymine as skeleton, magnesium compound is conditioning agent, and being aided with Tetramethylammonium hydroxide is carbon-dioxide absorbent, and is equipped with molysite, synthetic high-molecular chelating agent and magnesiumcarbonate microcrystal mixture.
As mentioned above, although disclose the multiple heavy metal stabilizer for contaminated soil in prior art, also obtained different effects, but the processing object of these stablizers is all the heavy metal in soil, bed mud or mud, and be applied to heavy metal in these media and the stablizer of organism and their combined pollution still lacks.
In these stabilization technologies, although reduced the Leaching of pollutent from the risk angle, but can not change the total amount of pollutant in soil, bed mud or mud, this contradicts with standard of soil environment quality, therefore, exploitation counterweight metal has the stablizer that reductibility is stable and organism is had to the degradation property stabilization, realizes the purpose that reduces the stablizer adding proportion and cut down total amount of organic, be the cutting edge technology in this field, there is great application prospect and promotional value.
Therefore, research and development can realize heavy metal and the stable stablizer of organism simultaneously, especially, by the heavy metal more stable and new stabilizer and the method that realize degraded by the organism stabilization time, have urgent demand.
Summary of the invention
Particularly, the present invention relates to three aspects.
First aspect, the invention provides a kind of contaminated soil, bed mud and mud deoxidization, degradation stablizer, described deoxidization, degradation stablizer can be realized the reductibility stabilization to the heavy metal in soil, bed mud, mud, lower in the adding proportion obtained under the same stable effect, thereby realized the increase-volume of minimum degree, substantially do not increased the scale of construction of follow-up disposal; In addition, stablizer of the present invention also can be realized stabilization to the organic pollutant in soil, bed mud or mud, and can realize degraded to chloro, bromo organism wherein.After stabilizer treatment soil of the present invention, bed mud and mud, heavy metal and organic Leaching significantly reduce, and have realized organic part decrement, and the increase of the solid dielectric scale of construction still less, has facilitated subsequent disposal and utilization.
Described deoxidization, degradation stablizer of the present invention, in mass fraction, the following component that comprises the following mass fraction of respectively doing for oneself:
In described deoxidization, degradation stablizer of the present invention, the implication of described clay mineral is the simple clay mineral of any material of load not, its mass fraction is 20-50 part, and this scope has comprised any concrete point value wherein, as 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts or 50 parts.
In described deoxidization, degradation stablizer of the present invention, the mass fraction of described loading type clay mineral is 10-40 part, and this scope has comprised any concrete point value wherein, as 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts or 40 parts.
In described deoxidization, degradation stablizer of the present invention, the mass fraction of described molecular sieve ore is 10-15 part, and this scope has comprised any concrete point value wherein, as 10 parts, 11 parts, 12 parts, 13 parts, 14 parts or 15 parts.
In described deoxidization, degradation stablizer of the present invention, the mass fraction of described phosphatic rock is 5-10 part, and this scope has comprised any concrete point value wherein, as 5 parts, 6 parts, 7 parts, 8 parts, 9 parts or 10 parts.
In described deoxidization, degradation stablizer of the present invention, the mass fraction of described ferriferous oxide is 3-10 part, and this scope has comprised any concrete point value wherein, as 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts or 10 parts.
In described deoxidization, degradation stablizer of the present invention, the mass fraction of described gelatinous material is 5-10 part, and this scope has comprised any concrete point value wherein, as 5 parts, 6 parts, 7 parts, 8 parts, 9 parts or 10 parts.
In described deoxidization, degradation stablizer of the present invention, the mass fraction of described activator is 2-8 part, and this scope has comprised any concrete point value wherein, as 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts or 8 parts.
In described deoxidization, degradation stablizer of the present invention, the mass fraction of described deoxidization, degradation agent is 5-20 part, and this scope has comprised any concrete point value wherein, as 5 parts, 8 parts, 11 parts, 14 parts, 17 parts or 20 parts.
In described deoxidization, degradation stablizer of the present invention, the mass fraction of described auxiliary material is 1-6 part, and this scope has comprised any concrete point value wherein, as 1 part, 2 parts, 3 parts, 4 parts, 5 parts or 6 parts.
In described deoxidization, degradation stablizer of the present invention, any one or any several arbitrary combination that described clay mineral is sepiolite, kaolin, illite, polynite, attapulgite.
In described deoxidization, degradation stablizer of the present invention, any one in described loading type clay mineral the has been load above-mentioned clay mineral of nano zero valence iron or any several arbitrary combination.
In described deoxidization, degradation stablizer of the present invention, any one or two kinds of combination that described molecular sieve ore is zeolite or vermiculite.
In described deoxidization, degradation stablizer of the present invention, described phosphatic rock is a kind of or any several arbitrary combination in asparagus stone, fluorapatite, wlkeite, chlorapatite, saamite.
In described deoxidization, degradation stablizer of the present invention, described ferriferous oxide is a kind of or any several arbitrary combination in pyrrhosiderite, rhombohedral iron ore, lepidocrocite and hydrous iron oxide.
In described deoxidization, degradation stablizer of the present invention, any one or any several arbitrary combination that described gelatinous material is Calucium Silicate powder, ca aluminosilicate, calcium aluminoferrite.
In described deoxidization, degradation stablizer of the present invention, the arbitrary combination that described activator is any one or two kinds in calcium sulfate and sodium sulfate.
In described deoxidization, degradation stablizer of the present invention, described deoxidization, degradation agent is one or both arbitrary combination in ferrous salt and zeroth order iron powder.Described ferrous salt is preferably ferrous sulfate or iron protochloride.When processing heavy-metal contaminated soil, described deoxidization, degradation agent is preferably ferrous salt; When processing organic material contaminated soil, described deoxidization, degradation agent is preferably the zeroth order iron powder; When the soil of processing, during simultaneously by heavy metal and Organic pollutants, described deoxidization, degradation agent is preferably ferrous salt and zeroth order iron powder.But it should be noted, when processing contaminated soil, more preferably ferrous salt is used separately.
In described deoxidization, degradation stablizer of the present invention, described auxiliary material is a kind of or any several arbitrary combination in float stone, blast furnace slag, volcanic ash, flyash.
Second aspect, the present invention relates to the preparation method of described deoxidization, degradation stablizer.
Described preparation method be in following method A-C any one:
Method A: when described deoxidization, degradation agent only is the zeroth order iron powder, clay mineral, loading type clay mineral, molecular sieve ore, phosphatic rock, ferriferous oxide, gelatinous material, activator, zeroth order nanometer iron powder and auxiliary material are mixed together and grind evenly, cross 200 mesh sieves.
Method B: when described deoxidization, degradation agent only is ferrous salt, clay mineral, loading type clay mineral, molecular sieve ore, phosphatic rock, ferriferous oxide, gelatinous material, activator and auxiliary material are mixed together and grind evenly, cross 200 mesh sieves; And ferrous salt is mixed with to the aqueous solution that mass concentration is 10-40%.
Method C: when described deoxidization, degradation agent is zeroth order iron powder and ferrous salt, clay mineral, loading type clay mineral, molecular sieve ore, phosphatic rock, ferriferous oxide, gelatinous material, activator, zeroth order iron powder and auxiliary material are mixed together and grind evenly, cross 200 mesh sieves; And ferrous salt is mixed with to the aqueous solution that mass concentration is 10-40%.
In described deoxidization, degradation stablizer of the present invention and preparation method thereof, the preparation method of described loading type clay mineral is as follows:
Clay mineral is soaked with acid solution, more extremely neutral with deionized water rinsing, dry; Again with Fe 3+solution repeatedly infiltrates, and makes its cation exchange capacity (CEC) (CEC) all by Fe 3+saturated; After washing away the unnecessary ion of the particle-removing non-electrostatic adhesion state in surface with deionized water, use NaBH 4reductive agent is by Fe 3+be reduced to Zero-valent Iron, make described Nanoscale Iron loading type clay mineral.
The third aspect, the present invention relates to come deoxidization, degradation to stablize the treatment process of contaminated soil, bed mud and mud with described deoxidization, degradation stablizer.Described deoxidization, degradation stablizer can be used to process by the soil of heavy metal and/or Organic pollutants, bed mud or mud, the described deoxidization, degradation stablizer of the application of the invention, through the choose reasonable of each component concentration and the use of unique processing method and processing parameter, can be by wherein heavy metal and/or organism stabilization more effectively, and the organic content of Partial digestion, with common stabilization technology, compare, addition is lower, and has the function of organism decrement.
Particularly, a third aspect of the present invention relates to:
I. carry out the treatment process of deoxidization, degradation stabilizing heavy metal contaminated soil, bed mud or mud with described deoxidization, degradation stablizer, the treating method comprises following steps:
(1) heavy-metal contaminated soil, bed mud or mud are carried out to crushing and screening, then spray the ferrous salt solution that mass concentration is 10-40%, the 10-30% that the sprinkling quality of described ferrous salt solution is soil, bed mud or sludge quality, and stirring and evenly mixing;
(2) by clay mineral, loading type clay mineral, molecular sieve ore, phosphatic rock, ferriferous oxide, gelatinous material, auxiliary material, activator through ground and mixed, the mixing material of crossing after 200 mesh sieves adds in heavy-metal contaminated soil, bed mud or the mud of step (1) gained, and mix, add quality for not spraying the 3-15% of soil, bed mud or sludge quality before ferrous salt solution;
(3) Leaching Heavy Metals and/or the content of heavy-metal contaminated soil, bed mud or the mud in monitoring step (2).
II. carry out the treatment process of deoxidization, degradation stable organic matter contaminated soil, bed mud or mud with described deoxidization, degradation stablizer, the treating method comprises following steps:
(1) organic material contaminated soil, bed mud or mud are carried out to crushing and screening;
(2) by clay mineral, loading type clay mineral, molecular sieve ore, phosphatic rock, ferriferous oxide, gelatinous material, auxiliary material, activator, zeroth order iron powder through mixed grinding, the mixing material of crossing after 200 mesh sieves adds in organic material contaminated soil, bed mud or the mud of step (1) gained, and mix the 3-15% that the interpolation quality is soil, bed mud or sludge quality;
(3) Leaching Heavy Metals and/or the content of heavy-metal contaminated soil, bed mud or the mud in monitoring step (2).
III. with described deoxidization, degradation stablizer, come deoxidization, degradation stable simultaneously by the treatment process of the soil of heavy metal and Organic pollutants, bed mud or mud, the treating method comprises following steps:
(1) contaminated soil, bed mud or mud are sieved to fragmentation, then spray the ferrous salt solution that mass concentration is 10-40%, the 10-30% that the sprinkling quality of described ferrous salt solution is soil, bed mud or sludge quality, and stirring and evenly mixing;
(2) by clay mineral, loading type clay mineral, molecular sieve ore, phosphatic rock, ferriferous oxide, gelatinous material, auxiliary material, activator, zeroth order iron powder through mixed grinding, the mixing material of crossing after 200 mesh sieves adds in heavy-metal contaminated soil, bed mud or the mud of step (1) gained, and mix, add quality for not spraying the 3-15% of soil, bed mud or sludge quality before ferrous salt solution;
(3) heavy metal and organism Leaching and/or the content of the heavy metal in detecting step (2) and organic material contaminated soil, bed mud or mud.
Positively effect of the present invention is:
(1) can be simultaneously the heavy metal in soil, bed mud or mud or organism or their combined pollutant be carried out to stabilization.This stablizer, by the rational proportion of different inorganic materials, not only has good stabilization effect to heavy metal, and organism is also had to good stabilization effect.
(2) organic pollutant in soil, bed mud or mud is not only had to static stabilization, and As time goes on, can realize halo, the organic Degradation of bromo, cut down total amount of organic; To the heavy metal in solid dielectric, there is strengthening reduction stabilization, stabilization speed is fast, effective.
(3) dosage is little, and stabilization effect is good.This stablizer is by the reasonable combination of different natural materialss and exotic materials, given full play to the synergy of the materializing procedure such as absorption, precipitation, co-precipitation, reduction, replacement of these materials, reduced the dosage of stablizer, greatly strengthen the long term stabilization effect to pollutent, reduced Leaching, biological effectiveness, ecological risk and the human health risk of contaminated soil.
(4) material adopted is cheap and easy to get, can not produce secondary pollution, and engineering construction is convenient, is a kind of stablizer of deoxidization, degradation fast and efficiently.
Embodiment
Below by specific embodiment, the present invention is described in detail; but the purposes of these exemplary embodiments and purpose only are used for exemplifying the present invention; not real protection scope of the present invention is formed to any type of any restriction, more non-protection scope of the present invention is confined to this.
Preparation example 1: the preparation of loading type clay mineral
Sepiolite is soaked with the aqueous hydrochloric acid of 1mol/L, more extremely neutral with deionized water rinsing, dry; Again with the FeCl of 1mol/L 3solution impregnation, make its cation exchange capacity (CEC) (CEC) all by Fe 3+saturated; After washing away the unnecessary ion of the particle-removing non-electrostatic adhesion state in surface with deionized water, use NaBH 4reductive agent is by Fe 3+be reduced to Zero-valent Iron, make Nanoscale Iron loading type clay mineral, called after loading type clay mineral-1.
Preparation example 2-5: the preparation of loading type clay mineral
Except using kaolin, illite, polynite or attapulgite to replace sepiolite, implemented preparation example 2-5 with the same way as of preparation example 1 respectively, having obtained load has the clay mineral of kaolin, illite, polynite or the attapulgite of Nanoscale Iron, and distinguishes called after loading type clay mineral-2, loading type clay mineral-3, loading type clay mineral-4 and loading type clay mineral-5.
Embodiment 1
Stabilization treatment to certain heavy-metal contaminated soil
The small-sized Electroplate Factory in Shanghai, the heavy metal in this place soil is mainly chromium, nickel, lead, and maximum concentration is respectively 841mg/kg, 2279mg/kg and 632mg/kg.After determining pollution range and the degree of depth after testing, the usage mining machine is temporarily stored in after contaminated soil is dug out on the plot that the side, place is covered with impervious material, adopt screening crusher to sieve soil broken, reject bulk solid, spray the ferrous sulfate aqueous solution that mass concentration is 10% simultaneously, it is soil quality 10% that the aqueous solution sprays quality, and stirs.
By mass parts, by 20 parts of sepiolites, 10 parts of loading type clay mineral-1,10 part zeolites, 5 parts of asparagus stones, 3 parts of pyrrhosiderites, 5 parts of Calucium Silicate powder, 1 part of float stone, 2 parts of calcium sulfate through mixed grinding, the mixing material of crossing after 200 mesh sieves adds in above-mentioned soil, and mix, add quality for not spraying 5% of soil quality before ferrous sulfate aqueous solution, and employing mixing machinery equipment carries out stirring and evenly mixing to soil.
After maintenance seven days, detect Leaching Heavy Metals and the content of described heavy-metal contaminated soil.
Embodiment 2-5
Except working load type clay mineral-2, loading type clay mineral-3, loading type clay mineral-4 and loading type clay mineral-5 replace, loading type clay mineral-1, having implemented embodiment 2-5 with the same way as of embodiment 1 respectively respectively.
Heavy-metal contaminated soil after embodiment 1-5 is processed carries out the Leaching Heavy Metals detection, the results are shown in following table 1.
Table 1. is heavy metal-polluted soil leaching concentration (mg/L) after embodiment 1-5 processes
ND: do not detect
From upper table 1, after processing, the leaching concentration of heavy metal in soil is and does not detect, and meets the requirement of general industrial solid waste.
Embodiment 6
Stabilization treatment to certain lake dredging bottom-mud heavy metal
The heavy metal that exceeds standard in the lake dredging bottom-mud of Shanghai is copper, lead and zinc, and peak concentration is respectively 1914mg/kg, 659mg/kg and 3125mg/kg.
After the abundant drying of this lake dredging bottom-mud, adopt screening crusher to carry out crushing and screening to soil, reject bulk solid, spray the ferrous sulfate aqueous solution that mass concentration is 15% simultaneously, it is 20% of bed mud quality that the aqueous solution sprays quality, and stirs.
By mass parts, by 30 parts of kaolin, 20 parts of loading type clay mineral-1,15 part vermiculites, 10 parts of fluorapatites, 6 parts of rhombohedral iron ore, 10 parts of ca aluminosilicates, 4 parts of blast furnace slags, 5 parts of sodium sulfate through mixed grinding, the mixing material of crossing after 200 mesh sieves adds in the above-mentioned bed mud that has sprayed ferrous sulfate aqueous solution, and mix, add quality for not spraying 10% of bed mud quality before ferrous sulfate aqueous solution, and employing mixing machinery equipment carries out stirring and evenly mixing to bed mud.
After maintenance 7 days, detect Leaching Heavy Metals and the content of described lake dredging bottom-mud.
Embodiment 7-10
Except working load type clay mineral-2, loading type clay mineral-3, loading type clay mineral-4 and loading type clay mineral-5 replace, loading type clay mineral-1, having implemented embodiment 7-10 with the same way as of embodiment 6 respectively respectively.
Adopt national standard " the horizontal succusion of solid waste Leaching leaching method " GB5086.2-1997, the lake dredging bottom-mud after embodiment 6-10 is processed carries out toxicity characteristic leaching procedure, does not all detect, and the results are shown in following table 2.
Table 2. is heavy metal-polluted soil leaching concentration (mg/L) after embodiment 6-10 processes
ND: do not detect
From upper table 2, after processing, the leaching concentration of heavy metal in soil is and does not detect, and meets the requirement of general industrial solid waste.
Embodiment 11
Stabilization treatment to certain Perchlorobenzene contaminated soil
Certain site, peasant pharmaceutical factory is polluted by Perchlorobenzene, and in contaminated soil, the Perchlorobenzene maximum level is 18.3mg/kg.
After determining after testing pollution range and the degree of depth, the usage mining machine is temporarily stored in after contaminated soil is dug out on the plot that the side, place is covered with impervious material, adopts screening crusher to carry out crushing and screening to soil, rejects bulk solid.
By mass parts, by 40 parts of illites, 40 parts of loading type clay mineral-1,15 part zeolites, 8 parts of wlkeites, 5 parts of lepidocrocites, 7 parts of calcium aluminoferrites, 6 parts of volcanic ash, 8 parts of calcium sulfate, 8 parts of zeroth order iron powders through mixed grinding, the mixing material of crossing after 200 mesh sieves adds in above-mentioned soil, and mix, to add quality be soil quality 15%, and adopt mixing machinery equipment to carry out stirring and evenly mixing to soil.
After maintenance is stablized 28 days, sampling and measuring, the leaching concentration that records Perchlorobenzene is 0.2mg/L, far below the 5mg/L in the Hazardous wastes standard of perfection.After 28 days, the hexachlorobenzene content of measuring in soil is 14.6mg/L, and total amount has reduced by 20%.Illustrate that stablizer of the present invention has the organic effect of degradating chloro.
Embodiment 11-15
Except working load type clay mineral-2, loading type clay mineral-3, loading type clay mineral-4 and loading type clay mineral-5 replace, loading type clay mineral-1, having implemented embodiment 11-15 with the same way as of embodiment 10 respectively respectively.
After maintenance is stablized 28 days, the difference sampling and measuring, the Perchlorobenzene leaching concentration that records the soil of embodiment 11-15 processing is 0.15-0.22mg/L, far below the 5mg/L in the Hazardous wastes standard of perfection; The hexachlorobenzene content recorded in soil is 14.5mg/L to the maximum, and total amount has reduced by 21%.Illustrate that stablizer of the present invention has the organic effect of degradating chloro.
Embodiment 16
Stabilization treatment to certain polycyclic aromatic hydrocarbon pollution
Certain contaminated site is polyaromatic hydrocarbon pollutant, is mainly benzo (a) pyrene, benzo (b) fluoranthene, and peak concentration is 5.2mg/kg and 6.1mg/kg.
After determining after testing pollution range and the degree of depth, the usage mining machine is temporarily stored in after contaminated soil is dug out on the plot that the side, place is covered with impervious material, adopts screening crusher to carry out crushing and screening to soil, rejects bulk solid.
By mass parts, by 25 parts of polynites and 25 parts of attapulgites, 15 parts of loading type clay mineral-1,10 part vermiculites, 5 parts of chlorapatites and 4 parts of strontium phosphorus ashes, 5 parts of hydrous iron oxides, 5 parts of ca aluminosilicates and 2 parts of calcium aluminoferrites, 2 parts of flyash, 2 parts of calcium sulfate and 2 parts of sodium sulfate, 15 parts of zeroth order iron powders through mixed grinding, the mixing material of crossing after 200 mesh sieves adds in above-mentioned soil, and mix, to add quality be soil quality 5%, and adopt mixing machinery equipment to carry out stirring and evenly mixing to soil.
After maintenance is stablized 28 days, sampling and measuring, the leaching concentration that records benzo (a) pyrene is 0.001mg/L, total amount is 4.4mg/kg, and the leaching of benzo (b) fluoranthene does not detect, this proof described stablizer of the present invention has very excellent deoxidization, degradation stabilization to the polycyclic aromatic hydrocarbons organic pollutant.
Embodiment 17-20
Except working load type clay mineral-2, loading type clay mineral-3, loading type clay mineral-4 and loading type clay mineral-5 replace, loading type clay mineral-1, having implemented embodiment 17-20 with the same way as of embodiment 16 respectively respectively.
After maintenance is stablized 28 days, the difference sampling and measuring, benzo (a) the pyrene leaching concentration that records the soil of embodiment 17-20 processing is 0.0008-0.0013mg/L, and the leaching of benzo (b) fluoranthene does not detect, this proof described stablizer of the present invention has very excellent deoxidization, degradation stabilization to the polycyclic aromatic hydrocarbons organic pollutant.
The purposes that should be appreciated that these embodiment only limits the scope of the invention for the present invention being described but not being intended to.In addition; also should understand; after having read technology contents of the present invention, those skilled in the art can make various changes, modification and/or modification to the present invention, within these all equivalent form of values fall within the protection domain that the application's appended claims limits equally.

Claims (10)

1. a contaminated soil, bed mud and mud deoxidization, degradation stablizer is characterized in that: in mass fraction, and the following component that comprises the following mass fraction of respectively doing for oneself:
2. contaminated soil as claimed in claim 1, bed mud and mud deoxidization, degradation stablizer is characterized in that:
Any one or any several arbitrary combination that described clay mineral is sepiolite, kaolin, illite, polynite, attapulgite.
3. contaminated soil as claimed in claim 2, bed mud and mud deoxidization, degradation stablizer is characterized in that: any one in described loading type clay mineral the has been load described clay mineral of nano zero valence iron or any several arbitrary combination.
4. as the described contaminated soil of claim 1-3 any one, bed mud and mud deoxidization, degradation stablizer, it is characterized in that: any one or any several arbitrary combination that described gelatinous material is Calucium Silicate powder, ca aluminosilicate, calcium aluminoferrite.
5. as the described contaminated soil of claim 1-4 any one, bed mud and mud deoxidization, degradation stablizer, it is characterized in that: the arbitrary combination that described activator is any one or two kinds in calcium sulfate and sodium sulfate.
6. as the described contaminated soil of claim 1-5 any one, bed mud and mud deoxidization, degradation stablizer, it is characterized in that: described deoxidization, degradation agent is one or both arbitrary combination in ferrous salt and zeroth order iron powder.
7. as the preparation method of the described contaminated soil of claim 1-6 any one, bed mud and mud deoxidization, degradation stablizer, it is characterized in that: described preparation method be in following method A-C any one:
Method A: when described deoxidization, degradation agent only is the zeroth order iron powder, clay mineral, loading type clay mineral, molecular sieve ore, phosphatic rock, ferriferous oxide, gelatinous material, activator, zeroth order nanometer iron powder and auxiliary material are mixed together and grind evenly, cross 200 mesh sieves;
Method B: when described deoxidization, degradation agent only is ferrous salt, clay mineral, loading type clay mineral, molecular sieve ore, phosphatic rock, ferriferous oxide, gelatinous material, activator and auxiliary material are mixed together and grind evenly, cross 200 mesh sieves; And ferrous salt is mixed with to the aqueous solution that mass concentration is 10-40%;
Method C: when described deoxidization, degradation agent is zeroth order iron powder and ferrous salt, clay mineral, loading type clay mineral, molecular sieve ore, phosphatic rock, ferriferous oxide, gelatinous material, activator, zeroth order iron powder and auxiliary material are mixed together and grind evenly, cross 200 mesh sieves; And ferrous salt is mixed with to the aqueous solution that mass concentration is 10-40%.
8. right to use requires the described deoxidization, degradation stablizer of 1-6 any one to carry out the treatment process of deoxidization, degradation stabilizing heavy metal contaminated soil, bed mud or mud, it is characterized in that: the treating method comprises following steps:
(1) heavy-metal contaminated soil, bed mud or mud are carried out to crushing and screening, then spray the ferrous salt solution that mass concentration is 10-40%, the 10-30% that the sprinkling quality of described ferrous salt solution is soil, bed mud or sludge quality, and stirring and evenly mixing;
(2) by clay mineral, loading type clay mineral, molecular sieve ore, phosphatic rock, ferriferous oxide, gelatinous material, auxiliary material, activator through ground and mixed, the mixing material of crossing after 200 mesh sieves adds in heavy-metal contaminated soil, bed mud or the mud of step (1) gained, and mix, add quality for not spraying the 3-15% of soil, bed mud or sludge quality before ferrous salt solution;
(3) Leaching Heavy Metals and/or the content of heavy-metal contaminated soil, bed mud or the mud in monitoring step (2).
9. right to use requires the described deoxidization, degradation stablizer of 1-6 any one to carry out the treatment process of deoxidization, degradation stable organic matter contaminated soil, bed mud or mud, it is characterized in that: the treating method comprises following steps:
(1) organic material contaminated soil, bed mud or mud are carried out to crushing and screening;
(2) by clay mineral, loading type clay mineral, molecular sieve ore, phosphatic rock, ferriferous oxide, gelatinous material, auxiliary material, activator, zeroth order iron powder through mixed grinding, the mixing material of crossing after 200 mesh sieves adds in organic material contaminated soil, bed mud or the mud of step (1) gained, and mix the 3-15% that the interpolation quality is soil, bed mud or sludge quality;
(3) Leaching Heavy Metals and/or the content of heavy-metal contaminated soil, bed mud or the mud in monitoring step (2).
10. right to use requires the described deoxidization, degradation stablizer of 1-6 any one to come deoxidization, degradation stable simultaneously by the treatment process of the soil of heavy metal and Organic pollutants, bed mud or mud, it is characterized in that: the treating method comprises following steps:
(1) contaminated soil, bed mud or mud are carried out to crushing and screening, then spray the ferrous salt solution that mass concentration is 10-40%, the 10-30% that the sprinkling quality of described ferrous salt solution is soil, bed mud or sludge quality, and stirring and evenly mixing;
(2) by clay mineral, loading type clay mineral, molecular sieve ore, phosphatic rock, ferriferous oxide, gelatinous material, auxiliary material, activator, zeroth order iron powder through mixed grinding, the mixing material of crossing after 200 mesh sieves adds in heavy-metal contaminated soil, bed mud or the mud of step (1) gained, and mix, add quality for not spraying the 3-15% of soil, bed mud or sludge quality before ferrous salt solution;
(3) heavy metal and organism Leaching and/or the content of the heavy metal in detecting step (2) and organic material contaminated soil, bed mud or mud.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1806974A (en) * 2005-12-28 2006-07-26 浙江大学 Method for preparing emulsified nanometer grade zero valent iron and nanometer grade bimetal and use thereof
CN101011703A (en) * 2007-01-26 2007-08-08 广东省生态环境与土壤研究所 Method for accelerating deoxidization, degradation and transformation of organic contamination in soil
KR20070111104A (en) * 2006-05-17 2007-11-21 에코랜드 주식회사 Eecocover material for daily, middle, final cover in waste landfill
CN102167978A (en) * 2011-03-11 2011-08-31 中国科学院亚热带农业生态研究所 Iron/manganese oxide for passivating soil heavy metals and preparation method thereof
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
CN102443400A (en) * 2011-10-22 2012-05-09 广东省生态环境与土壤研究所 Ternary composite organic pollution repairing agent containing iron oxide, humus and reducing bacteria thereof, and preparation method of repairing agent
CN102732259A (en) * 2012-06-26 2012-10-17 南京清科中晟环境技术有限公司 Heavy metal polluted crystallization encapsulated stabilizing agent and its application method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1806974A (en) * 2005-12-28 2006-07-26 浙江大学 Method for preparing emulsified nanometer grade zero valent iron and nanometer grade bimetal and use thereof
KR20070111104A (en) * 2006-05-17 2007-11-21 에코랜드 주식회사 Eecocover material for daily, middle, final cover in waste landfill
CN101011703A (en) * 2007-01-26 2007-08-08 广东省生态环境与土壤研究所 Method for accelerating deoxidization, degradation and transformation of organic contamination in soil
CN102167978A (en) * 2011-03-11 2011-08-31 中国科学院亚热带农业生态研究所 Iron/manganese oxide for passivating soil heavy metals and preparation method thereof
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
CN102443400A (en) * 2011-10-22 2012-05-09 广东省生态环境与土壤研究所 Ternary composite organic pollution repairing agent containing iron oxide, humus and reducing bacteria thereof, and preparation method of repairing agent
CN102732259A (en) * 2012-06-26 2012-10-17 南京清科中晟环境技术有限公司 Heavy metal polluted crystallization encapsulated stabilizing agent and its application method

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HANZHONG JIA: "Adsorption and dechlorination of 2,4-dichlorophenol(2,4-DCP) on a multi-functional organo-smectite templated zero-valent iron composite", 《CHEMICAL ENGINEERING JOURNAL》 *
杨柱等: "零价铁修复水中含氯有机污染物的研究进展", 《安全与环境工程》 *
王旌等: "亚铁盐对城市污泥中重金属的稳定化作用研究", 《环境科学》 *

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