CN108380663A - The method that class Fenton oxidation method removes half volatile organic contaminant in soil - Google Patents
The method that class Fenton oxidation method removes half volatile organic contaminant in soil Download PDFInfo
- Publication number
- CN108380663A CN108380663A CN201810380806.6A CN201810380806A CN108380663A CN 108380663 A CN108380663 A CN 108380663A CN 201810380806 A CN201810380806 A CN 201810380806A CN 108380663 A CN108380663 A CN 108380663A
- Authority
- CN
- China
- Prior art keywords
- soil
- acid
- organic
- volatile organic
- fenton oxidation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to the methods that class Fenton oxidation method removes half volatile organic contaminant in soil, organic acid is added in the contaminated soil of certain moisture content, it is made into the acid mud that pH value is 34, then in wherein addition alkali solid peroxide and metal salt, obtained Fenton-like ' s reaction systems are reacted certain time at a certain temperature with soil, remove organic pollution in contaminated soil.Compared with prior art, the present invention has the advantages that short to organic polluted soil repairing efficiency, pollutant removal is good, small to intrinsic physicochemical property brokenization of soil, avoids soil acidification.
Description
Technical field
The invention belongs to field of environment engineering, are related to a kind of minimizing technology of organic contaminants in soil, more particularly, to
A kind of method of chemical oxidization method removal organic contaminants in soil.
Background technology
According to Environmental Protection Department and Ministry of Land and Resources's joint publication《National Soil Pollution Investigation bulletin》, national soil
Environmental aspect totally allows of no optimist, and the total point exceeding standard rate of national soil is 16.1%, pollution type it is most be inorganic matter, have
Type takes second place；Organic matter is also sent out in the typical plot such as Industrial Wasteland, chemical industrial park, waste incineration and landfill yard, oil-producing region
Seriously polluted warning.The pollutants such as polycyclic aromatic hydrocarbon, petroleum hydrocarbon, pesticide in organic polluted soil, generally have low aqueous solubility,
The characteristics such as high octanol-water partition coefficient and electrochemical stability are typical difficult to degrade, persistence organic pollutants.This is several
Pollutant generally have be not easy to be biodegradable, potential biomass accumulation and carcinogenicity, can deposit for a long time in the soil
And be enriched with, seriously threaten human physical and mental health.Therefore it is soil for difficult to degrade, persistence organic pollutant removal in soil
Earth repairs the important topic in field.
Difficult to degrade in soil, persistence organic pollutant is because of its low biological degradability, hydrophobicity and slowly desorption work
With etc. characteristics and it is more difficult be degraded, thus need the difficult point that overcomes as a variety of recovery techniques.It is directed to this kind of organic contamination at present
The minimizing technology of object has being used in combination for Physical, chemical oxidization method, bioanalysis and the above method.
104588405 A of Chinese patent CN repair petroleum hydrocarbon contaminated soil using the electronic two stage process of microorganism-.
After joint repairs 70-77d, the degradation rate of soil petrochina hydrocarbon reaches 72%-84%.It more traditional microorganism remediation and electronic repaiies
Multiple, the processing method of 2 kinds of technical tie-up reparations can improve the degradation rate of petroleum hydrocarbon and reduce rehabilitation cost, but its repairing efficiency compared with
It is long.
Zhang Lihong etc. is mixed with the contaminated soil of benzo (a) pyrene (BaP) of nano TiO 2 using ultraviolet light, as a result sends out
Existing 0.5% TiO2 can make the half-life period of BaP in soil be reduced to 103.26h from 363.22h.In photocatalytic degradation contaminated soil
Organic matter can obtain better result in the lab, but set by photochemical catalyst recycling, photocatalysis in practical engineering application
The restriction of the problems such as standby operating cost.
(ecological environment journal, 2014,05 (1) such as Yao Lunfang:890-896) use trichoderma reesei, rhizobium and pale reddish brown lucerne
Mu is jointly processed by polycyclic aromatic hydrocarbon pollution, and after 60 days, the degradation rate of polycyclic aromatic hydrocarbon is up to 33%.Using microorganism and plant
The method of object degradation organic polluted soil, rehabilitation cost is cheap, but repairing efficiency needed for bioanalysis is longer, while microorganism and plant
Object is larger by surrounding environment influence, it is difficult to maintain the ideal conditions of biological growth.
The Journal of Environmental Science and such as Kim Jung Hwan Health, 2009,44
(11):The phenanthrene in electricity-Fenton methods removal soil 1111-1119.) is used, two kinds of inorganic acids of H2SO4, HCl are added in system
Auxiliary agent, and the addition of inorganic acid is had studied in detail for the luxuriant and rich with fragrance necessity of electricity-Fenton systems degradation.After inorganic acid is added, electricity-
Fenton ' s systems can reach 80% to the removal rate of soil species phenanthrene.For Fenton ' s systems in pH=3, energy efficient oxidation is organic
Pollutant, however the inorganic acids such as a large amount of H2SO4, HCl are added in the soil can cause soil severe acidification, destroy soil ring
Border.
(environmental project journal, 2011,5 (8) such as Du Yongchao:1882-1886) have studied the Fenton ' S of complexing agent improvement
System removes the influence factor of PAHs in soil, and Fenton ' the S systems improved by oxybenzene group-beta-cyclodextrin (HPCD) make
Luxuriant and rich with fragrance degradation rate reaches 70%.Gong Zongqing et al. are prepared using immobilized lipase, soybean oil, methanol as primary raw material
Biodiesel, to coke-oven plant's PAHs contaminated soils carry out elution repair achieve preferable effect.Solvent is added in the soil
Elution, method is big for porosity, the soil effect of good penetrability is preferable, while may also result in pollutant and being moved to underground
It moves, polluted underground water.
Invention content
It is short, dirty that it is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of repairing efficiencies
Dye object removal efficiency is high, to the strong applicability in organic contamination place, avoid soil repaired after severe acidification chemical oxidization method
The method for removing organic contaminants in soil.With traditional Fenton-like ' s systems degradation organic polluted soil method compared with, this
Method replaces hydrogen peroxide using alkali solid peroxide, and the pH value of reaction system is adjusted using humic acid.Alkali solid mistake
Oxide is solid reagent, convenient transportation, and the humic acid being added in system is organic acid, can be avoided making in the soil from degrading
At soil acidification, the Fenton-like described in this method ' s system device therefors are less, easy to implement.
The purpose of the present invention can be achieved through the following technical solutions：
The method that class Fenton oxidation method removes half volatile organic contaminant in soil, in the contaminated soil of certain moisture content
Middle addition organic acid is made into the acid mud that pH value is 3-4, then in wherein addition alkali solid peroxide and metal
Salt, Fenton-like ' s reaction systems are reacted after a certain period of time at a certain temperature with soil, can remove polycyclic in contaminated soil
Aromatic hydrocarbons, petroleum hydrocarbon, pesticide etc. be difficult to degrade, persistence organic pollutant (POPs).
Organic acid described in technical solution of the present invention be lactic acid (Lactic acid, LA), humic acid (Humic acid,
HA), L-TARTARIC ACID (L-tartaric acid, L-TA).Preferred organic acid is humic acid.
Alkali solid peroxide and metal salt described in technical solution of the present invention are SODIUM PERCARBONATE, calper calcium peroxide, mistake
One or more combinations in Boratex, peroxophosphoric acid sodium, carbamide percarbonate.
The moisture content of contaminated soil described in technical solution of the present invention is 20%-70%.In view of the warp of engineer application
Ji property, the 30%-40% of preferred soil moisture content.
In Fenton-like described in technical solution of the present invention ' s reaction systems, metal salt and alkali solid peroxide
Molar ratio is 1:0.5-20.The molar ratio of preferred metal salt and alkali solid peroxide is 1:5-15.
In Fenton-like described in technical solution of the present invention ' s reaction systems, the molar ratio of metal salt and humic acid (HA)
It is 1:0.1-5.The molar ratio of preferred metal salt and humic acid (HA) is 1:0.5-3.
Polluted Soil is added in Fenton-like described in technical solution of the present invention ' s reaction system neutral and alkali solid peroxides
A concentration of 0.1-20molkg of earth-1.With Na2CO4For oxidant, FeSO4For the Fenton-like of metal salt ' in s reaction systems,
By reaction mechanism it is found that working as H2O2Concentration it is relatively low when, Na2CO4The increase of concentration, makes H2O2Concentration increase, and cause to have
The increase of strong oxidizing property OH concentration, makes the organic pollution in soil resolve into small organic molecule, or even be decomposed into CO2With
H2O.But work as, Na2CO4Excessive concentration when, will produce excessive H2O2, cannot not only be generated more freely by decomposing at this time
Base, instead in reaction at the very start Fe2+Rapid oxidation is at Fe3+, make oxidation process in Fe3+Catalysis under carry out, thus
Both H is consumed2O2Inhibit the generation of OH again.In the real process of site remediation, the pollutant kind and concentration in different places
It differs greatly, Na2CO4Addition concentration need to be adjusted according to the result of pilot plant test.
Fenton-like described in technical solution of the present invention ' s reaction systems and the reaction temperature of contaminated soil are 10-60
℃.According to kinetics principle, as the temperature increases, reaction speed is accelerated.But for class Fenton's reaction system, temperature
It increases, not only accelerates the progress of positive reaction, also accelerate side reaction.Suitable temperature is conducive to the generation of OH, the excessively high meeting of temperature
Hydrogen peroxide is set to resolve into water and oxygen rapidly.Meanwhile class Fenton's reaction is rapider, can be released when with pollutant reaction a large amount of
Heat and gas, in Practical Project reparation, it is contemplated that the economy of engineer application and safety, preferred Fenton-like ' s reactions
System and the reaction temperature of contaminated soil are 15-30 DEG C.
The reaction time of Fenton-like described in technical solution of the present invention ' s reaction systems and contaminated soil is 30-
180min.In view of the factor that the duration in engineer application is more urgent, preferred Fenton-like ' s reaction systems and contaminated soil
Reaction time be 30-120min.
Organic pollution described in technical solution of the present invention is naphthalene, anthracene, phenanthrene, pyrene, fluoranthene, benzo (a) pyrene, dibenzo
(a, h) anthracene, indeno [1,2,3-cd] pyrene, Polychlorinated biphenyls, hexachloro-benzene, benzene, toluene, ethylbenzene, methylbenzene, ethylo benzene, chlorobenzene, benzene
Phenol, pentachloro- sweet smell, dibutyl phthalate.
The present invention is used in order to realize the removing that the organic pollution in soil is fast and efficiently degraded
Technical solution is：Organic acid is added in the contaminated soil of certain moisture content, is made into the acid mud that pH value is 3-4, so
React certain at a certain temperature with soil in wherein addition Solid hydrogen peroxide and ferrous sulfate, Fenton-like ' s reaction systems afterwards
After time, the difficult to degrade, persistence organic pollutants (POPs) such as polycyclic aromatic hydrocarbon, petroleum hydrocarbon, the pesticide in contaminated soil are can remove.
The fundamental reaction of the Fenton-like being made of alkali solid peroxide and metal salt ' s reaction systems and organic matter
Mechanism is following, and (alkali solid peroxide is with Na2CO4For；Metal salt is with FeSO4For reaction)：
Na2CO4+H2O→Na2CO3+H2O (1)
Fe2++H2O2→Fe3++HO-+·OH (2)
Fe3++H2O2→Fe2++HO2·+H+ (3)
2H2O2→·OH+HO2·+H2O (4)
It is removed with the method for the present invention in the polycyclic aromatic hydrocarbon, Polychlorinated biphenyls, petroleum hydrocarbon of soil etc. organic pollution, process
2 steps can be divided into：
(1) pretreatment process that organic polluted soil and Fenton-like ' s reaction systems are reacted：Analyze organic polluted soil
Moisture content, contaminated soil is mixed with a certain amount of water, formed moisture content be 30%-40% organic pollution mud.
(2) reaction process of organic polluted soil and Fenton-like ' s reaction systems：It is added in organic pollution mud
Organic acid forms the acid mud that pH value is 3-4, a certain amount of alkali solid peroxide and metal salt is then added.By class
After Fenton ' s reaction systems are stirred to react 30-120min with soil at 15-30 DEG C, the polycyclic virtue in contaminated soil can remove
Hydrocarbon, Polychlorinated biphenyls, petroleum hydrocarbon etc. be difficult to degrade, persistence organic pollutant.
Compared with prior art, the present invention is difficult to degrade suitable for PAHs in soil, Polychlorinated biphenyls, petroleum hydrocarbon etc., holds
The removing degradation of long property organic pollution.The Fenton-like ' s reaction systems prepare simplicity, derive from a wealth of sources, when reaction is shorter
Between can remove organic pollution, can be reacted at room temperature with contaminated soil.This method is compared with traditional treatment method, tool
Have that repairing efficiency is short, pollutant removing effect is good, does not cause soil acidification, and secondary pollution is small, easy to operate, easy to implement etc. excellent
Point.
Description of the drawings
Fig. 1 is Fenton-like ' removal effect of the different organic acids to polycyclic aromatic hydrocarbon in S reaction systems.
Fig. 2 is the total ion current figure of reaction solution composition after soil and Fenton-like ' s reaction systems are reacted
Specific implementation mode
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
Removal effect of the different organic acids to polycyclic aromatic hydrocarbon in Fenton-like ' S reaction systems
Moisture content be 30% polycyclic aromatic hydrocarbon pollution in (anthracene in soil, pyrene, BaP concentration be respectively
50mol/kg), a certain amount of organic acid and FeSO is added4, H is added dropwise under temperature constant magnetic stirring2O2.The dosage of organic acid
For 0.25mol/kg, FeSO4Dosage is 0.12mol/kg, Na2CO4Dosage is 1.0mol/kg；Reaction time is 40min, reacts
Temperature is 30 DEG C.Fenton-like ' the S reaction systems of addition different organic acids are shown in Table 1 to the removal effect of PAHs in soil.
Removal effect of the different organic acids to polycyclic aromatic hydrocarbon in 1 Fenton-like of table ' S reaction systems
Embodiment 2
Reaction temperature is to Fenton-like ' S reaction systems processing chemical plant contaminated soil effect influence
Soil sample is acquired from certain chemical plant contaminated area, through analyzing benzo (a) anthracene, benzo (a) pyrene, dibenzo in pedotheque
(a, h) anthracene, hexachloro-benzene, chlorobenzene concentration be respectively 15.94mg/kg, 4.53mg/kg, 5.29mg/kg, 35.24mg/kg,
112.33mg/kg。
Contaminated soil is mixed with water, is made into the mud that moisture content is 40%, Fenton-like ' s reaction systems, humic is added
The dosage of acid is 0.3mol/kg, FeSO4Dosage is 0.3mol/kg, Na2CO4Dosage is 3.0mol/kg；Under the conditions of 15-60 DEG C
It is stirred to react 60min, the removal rate of each pollutant is as shown in table 2 under different temperatures.
2 reaction temperature of table is to Fenton-like ' S reaction systems processing chemical plant contaminated soil effect influence
Embodiment 3
Reaction time is to Fenton-like ' S reaction systems processing chemical plant contaminated soil effect influence
Using contaminated soil sample described in embodiment 3, soil is mixed with water, is made into the mud that moisture content is 40%, adds
Enter Fenton-like ' s reaction systems, the dosage of humic acid is 0.3mol/kg, FeSO4Dosage is 0.3mol/kg, Na2CO4Dosage is
3.0mol/kg；30-150min is stirred to react under the conditions of 30 DEG C, the removal rate of each pollutant such as 3 institute of table under the differential responses time
Show.
3 reaction time of table is to Fenton-like ' S reaction systems processing chemical plant contaminated soil effect influence
Embodiment 4
Na2CO4Concentration is to Fenton-like ' S reaction systems processing chemical plant contaminated soil effect influence
Using contaminated soil sample described in embodiment 3, soil is mixed with water, is made into the mud that moisture content is 40%, adds
Enter Fenton-like ' s reaction systems, the dosage of humic acid is 0.3mol/kg, FeSO4Dosage is 0.3mol/kg, Na2CO4Dosage is
0.5-5.0mol/kg；60min, different Na are stirred to react under the conditions of 30 DEG C2CO4The removal rate of each pollutant such as table 4 when concentration
It is shown.
4 percarbonic acid concentration of table is to Fenton-like ' S reaction systems processing chemical plant contaminated soil effect influence
Embodiment 5
Fenton-like ' S reaction systems handle the product analysis after polycyclic aromatic hydrocarbon pollution
Moisture content be 30% polycyclic aromatic hydrocarbon pollution in (anthracene in soil, pyrene, BaP concentration be respectively
50mg/kg) and moisture content be 30% uncontaminated soil in, be separately added into Fenton-like ' s reaction systems.The use of humic acid
Amount is 0.25mol/kg, FeSO4Dosage is 0.12mol/kg, Na2CO4Dosage is 1.0mol/kg；Reaction time is 40min, instead
It is 30 DEG C to answer temperature.Separation soil and the liquid after reaction after reaction.
Liquid after reaction is placed in separatory funnel, dichloromethane is added as extract liquor, shakes 5min, stratification
After collect organic phase, repeat extraction 2 times, merge organic phase, anhydrous magnesium sulfate, dehydration and drying is added；It is dense using Rotary Evaporators
Contracting extract liquor crosses 0.45 μm of filter membrane removal particulate matter laggard gas chromatograph-mass spectrometer (GC-MS) (GC-MS, 7890A-5795 to 1mL
Type；Mass detector：5975C, U.S. Agilent) analysis sample component.
GC-MS testing conditions：Chromatographic column is HP-5MS (30m × 0.25mm × 0.25 μm, Agilent, the U.S.), mass spectrum inspection
Survey device, 270 DEG C of GC injection ports, flow rate of carrier gas 1.0mL/min, split ratio 5：1；Temperature program：60 DEG C of initial temperature is kept
2min, 200 DEG C are risen to 20 DEG C/min, 270 DEG C are risen to 10 DEG C/min, keeps 4min；Mass spectrum operating mode is full scan
(Full Scan), 200 DEG C of ion source temperature, 150 DEG C of level four bars temperature, electron bombardment energy 70eV.
The total ion current figure of the ingredient of liquid is shown in that attached drawing 2, wherein A are polycyclic aromatic hydrocarbon pollution after reaction；B is uncontaminated
Soil.2- methylpentanes, methyl cyclopentane, phthalic acid are detected in the reaction solution of contamination soil and soil of not contaminating
Isobutyl group nonyl ester and diphenyl ether.But 2- methyl acetones are not detected in the reaction solution for soil of not contaminating, and it is polycyclic aromatic hydrocarbons contaminated
But the presence of 2- methyl acetones is detected in the reaction solution of soil.As it can be seen that 2- methyl acetones are likely to be polycyclic aromatic hydrocarbon
One of decomposition product.And polycyclic aromatic hydrocarbon is compared, catabolite 2- methyl acetones are much smaller to the risk of environment.
Fig. 1 is Fenton-like ' removal effect of the different organic acids to polycyclic aromatic hydrocarbon in S reaction systems.This sentences compound dye
A concentration of 120mg/kg of poison (wherein anthracene, pyrene, BaP concentration be respectively 40mg/kg) polycyclic aromatic hydrocarbon pollution be to react
Soil carries out Fenton-like ' S oxidation reactions.It is auxiliary agent to investigate lactic acid, L-TARTARIC ACID and humic acid respectively under same experimental conditions
When influence to PAHs in soil removal rate.This reaction time is 20min, reaction temperature is 30 DEG C, FeSO4·7H2O
Dosage is 0.12mol/L, Na2CO4Dosage is 2.0mol/L, soil ratio 6：The additive amount of 1 (w/w), auxiliary agent are 0.25mol/L.
As shown in Figure 1, the use of humic acid is auxiliary agent under identical experiment condition, the removal rate of PAHs in soil is above
80%；And when the use of lactic acid and L-TARTARIC ACID being auxiliary agent, the removal rate of polycyclic aromatic hydrocarbon is no more than 60%.It is rotten in three kinds of auxiliary agents
It is best to the removal effect of polycyclic aromatic hydrocarbon to grow acid.
Embodiment 6
The method that class Fenton oxidation method removes half volatile organic contaminant in soil, in the contaminated soil of moisture content 20%
Middle addition lactic acid, a concentration of 0.1molkg of lactic acid in soil-1, it is made into the acid mud that pH value is 4, then in wherein
Alkali solid peroxide and metal salt is added, the alkali solid peroxide being added in the present embodiment is sodium perborate, metal
Salt is can to generate Cu2+、Cu+Metal salt, the molar ratio of metal salt and alkali solid peroxide is 1:0.5, with organic acid
Molar ratio be 1:0.1, obtained Fenton-like ' s reaction systems react 180min with soil at 10 DEG C, remove contaminated soil
Middle organic pollution.
Organic pollution in soil includes polycyclic aromatic hydrocarbon, petroleum hydrocarbon, pesticide and/or persistence organic pollutant, such as
Naphthalene, anthracene, phenanthrene, pyrene, fluoranthene, benzo (a) pyrene, dibenzo (a, h) anthracene, indeno [1,2,3-cd] pyrene, Polychlorinated biphenyls, hexachloro-benzene, benzene,
Toluene, ethylbenzene, methylbenzene, ethylo benzene, chlorobenzene, phenol, pentachloro- sweet smell and/or dibutyl phthalate etc..
Embodiment 7
The method that class Fenton oxidation method removes half volatile organic contaminant in soil, in the contaminated soil of moisture content 70%
Middle addition L-TARTARIC ACID, a concentration of 20molkg of L-TARTARIC ACID in soil-1, it is made into the acid mud that pH value is 3, so
Afterwards in alkali solid peroxide and metal salt is wherein added, the alkali solid peroxide being added in the present embodiment is percarbonic acid
Amide, metal salt are can to generate Co2+Metal salt, the molar ratio of metal salt and alkali solid peroxide is 1:3, and it is organic
The molar ratio of acid is 1:1, obtained Fenton-like ' s reaction systems react 90min with soil at 30 DEG C, remove contaminated soil
Middle organic pollution.
Embodiment 8
The method that class Fenton oxidation method removes half volatile organic contaminant in soil, in the contaminated soil of moisture content 50%
Middle addition L-TARTARIC ACID, a concentration of 10molkg of L-TARTARIC ACID in soil-1, it is made into the acid mud that pH value is 3, so
Afterwards in alkali solid peroxide and metal salt is wherein added, the alkali solid peroxide being added in the present embodiment is peroxophosphoric acid
Sodium, metal salt are can to generate Ni2+Metal salt, the molar ratio of metal salt and alkali solid peroxide is 1:20, and it is organic
The molar ratio of acid is 1:5, obtained Fenton-like ' s reaction systems react 30min with soil at 60 DEG C, remove contaminated soil
Middle organic pollution.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (10)
1. the method that class Fenton oxidation method removes half volatile organic contaminant in soil, which is characterized in that in certain moisture content
Contaminated soil in organic acid is added, be made into pH value be 3-4 acid mud, then in wherein be added alkali solid peroxide
Compound and metal salt, obtained Fenton-like ' s reaction systems react certain time at a certain temperature with soil, remove depollution
Organic contaminants in soil.
2. the method for half volatile organic contaminant, special in class Fenton oxidation method removal soil according to claim 1
Sign is that the organic acid is lactic acid, humic acid or L-TARTARIC ACID, preferably humic acid.
3. the method for half volatile organic contaminant, special in class Fenton oxidation method removal soil according to claim 1
Sign is that the alkali solid peroxide includes SODIUM PERCARBONATE, calper calcium peroxide, sodium perborate, peroxophosphoric acid sodium or percarbonic acid acyl
One or more of amine.
4. the method for half volatile organic contaminant, special in class Fenton oxidation method removal soil according to claim 1
Sign is that the metal salt is that can generate Fe2+、Fe3+、Cu2+、Cu+、Ag+、Co2+、Cd2+、Mn2+Or Ni2+Transition metal from
The water-soluble metal salt of son.
5. the method for half volatile organic contaminant, special in class Fenton oxidation method removal soil according to claim 1
Sign is that the molar ratio of the metal salt and alkali solid peroxide is 1:0.5-20, the molar ratio with organic acid are 1:
0.1-5。
6. the method for half volatile organic contaminant, special in class Fenton oxidation method removal soil according to claim 1
Sign is, a concentration of 0.1-20molkg of Organic Acids In Soil-1。
7. the method for half volatile organic contaminant, special in class Fenton oxidation method removal soil according to claim 1
Sign is that the moisture content of soil is 20%-70%.
8. the method for half volatile organic contaminant, special in class Fenton oxidation method removal soil according to claim 1
Sign is that at 10-60 DEG C, the reaction time controls in 30-180min for reaction temperature control.
9. the method for half volatile organic contaminant, special in class Fenton oxidation method removal soil according to claim 1
Sign is that the organic pollution in soil includes polycyclic aromatic hydrocarbon, petroleum hydrocarbon, pesticide and/or persistence organic pollutant.
10. the method for half volatile organic contaminant in the class Fenton oxidation method removal soil according to claim 1 or 9,
It is characterized in that, the organic pollution in soil is naphthalene, anthracene, phenanthrene, pyrene, fluoranthene, benzo (a) pyrene, dibenzo (a, h) anthracene, indeno
[1,2,3-cd] pyrene, Polychlorinated biphenyls, hexachloro-benzene, benzene, toluene, ethylbenzene, methylbenzene, ethylo benzene, chlorobenzene, phenol, pentachloro- it is fragrant and/or
Dibutyl phthalate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810380806.6A CN108380663A (en) | 2018-04-25 | 2018-04-25 | The method that class Fenton oxidation method removes half volatile organic contaminant in soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810380806.6A CN108380663A (en) | 2018-04-25 | 2018-04-25 | The method that class Fenton oxidation method removes half volatile organic contaminant in soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108380663A true CN108380663A (en) | 2018-08-10 |
Family
ID=63065942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810380806.6A Pending CN108380663A (en) | 2018-04-25 | 2018-04-25 | The method that class Fenton oxidation method removes half volatile organic contaminant in soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108380663A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304363A (en) * | 2018-10-29 | 2019-02-05 | 东华大学 | A kind of chemical remediation medicament and its application method suitable for oil-polluted soils |
| CN109607664A (en) * | 2018-12-20 | 2019-04-12 | 苏州科技大学 | A kind of material and preparation method thereof of quick elimination black and odorous water |
| CN109759438A (en) * | 2019-01-25 | 2019-05-17 | 湖南新九方科技有限公司 | A kind of restorative procedure of organic polluted soil |
| CN110217877A (en) * | 2019-06-03 | 2019-09-10 | 燕山大学 | The method for handling organic wastewater as the class Fenton's reaction of oxidant using perborate |
| CN110576032A (en) * | 2019-08-29 | 2019-12-17 | 陕西地建土地工程技术研究院有限责任公司 | Method for degrading polycyclic aromatic hydrocarbon in soil by adopting mechanochemical method |
| CN111495958A (en) * | 2020-04-28 | 2020-08-07 | 中国科学院过程工程研究所 | Contaminated soil remediation method |
| CN111760899A (en) * | 2020-06-22 | 2020-10-13 | 南京农业大学 | Feeding improvement method for repairing toxic organic contaminated soil through oxidant compounding oxidation |
| CN112110625A (en) * | 2020-08-28 | 2020-12-22 | 哈尔滨工业大学（深圳） | Method for removing refractory organic matters in polluted bottom mud based on calcium peroxide Fenton strengthening technology and application |
| CN112322301A (en) * | 2020-09-30 | 2021-02-05 | 华中科技大学 | Composite soil conditioner and application thereof |
| CN114486415A (en) * | 2021-12-23 | 2022-05-13 | 广东贝源检测技术股份有限公司 | Method for extracting petroleum hydrocarbon in soil |
| CN115368903A (en) * | 2021-05-18 | 2022-11-22 | 中国石油化工股份有限公司 | Composition with functions of solubilizing and degrading organic pollutants and application thereof |
| CN115368901A (en) * | 2021-05-18 | 2022-11-22 | 中国石油化工股份有限公司 | Composition with function of enhancing nano calcium peroxide to repair polluted soil and application thereof |
| CN115368902A (en) * | 2021-05-18 | 2022-11-22 | 中国石油化工股份有限公司 | Kit with function of degrading organic pollutants and application thereof |
| CN115739105A (en) * | 2021-09-03 | 2023-03-07 | 中国矿业大学(北京) | Heterogeneous Fenton catalyst and preparation method and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241825A (en) * | 2012-10-15 | 2013-08-14 | 上海爱启生态科技有限公司 | Method for preparing brand-new 'Fenton-like oxidation process' medicament |
| CN104556491A (en) * | 2015-01-14 | 2015-04-29 | 华南理工大学 | Low-cost Fenton oxidation treatment method of hardly degradable organic wastewater |
| CN104692515A (en) * | 2015-02-04 | 2015-06-10 | 华东理工大学 | Method for removing chloro-olefin in water through strengthening activating calcium peroxide |
| CN105457996A (en) * | 2015-12-18 | 2016-04-06 | 广东工业大学 | Method for remediating organic-contaminated place soil by using microwave in collaboration with sodium percarbonate |
| CN105855286A (en) * | 2016-04-05 | 2016-08-17 | 南京农业大学 | Oxidation removing method for polycyclic aromatic hydrocarbon in soil through Fenton reagent bag |
| CN106946314A (en) * | 2017-04-01 | 2017-07-14 | 东南大学 | A kind of method of efficient degradation organic wastewater |
| CN107470344A (en) * | 2017-08-04 | 2017-12-15 | 中国科学院地理科学与资源研究所 | The method of nanometer humic acid joint ferrous ion activation persulfate renovation of organic pollution soil |
-
2018
- 2018-04-25 CN CN201810380806.6A patent/CN108380663A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241825A (en) * | 2012-10-15 | 2013-08-14 | 上海爱启生态科技有限公司 | Method for preparing brand-new 'Fenton-like oxidation process' medicament |
| CN104556491A (en) * | 2015-01-14 | 2015-04-29 | 华南理工大学 | Low-cost Fenton oxidation treatment method of hardly degradable organic wastewater |
| CN104692515A (en) * | 2015-02-04 | 2015-06-10 | 华东理工大学 | Method for removing chloro-olefin in water through strengthening activating calcium peroxide |
| CN105457996A (en) * | 2015-12-18 | 2016-04-06 | 广东工业大学 | Method for remediating organic-contaminated place soil by using microwave in collaboration with sodium percarbonate |
| CN105855286A (en) * | 2016-04-05 | 2016-08-17 | 南京农业大学 | Oxidation removing method for polycyclic aromatic hydrocarbon in soil through Fenton reagent bag |
| CN106946314A (en) * | 2017-04-01 | 2017-07-14 | 东南大学 | A kind of method of efficient degradation organic wastewater |
| CN107470344A (en) * | 2017-08-04 | 2017-12-15 | 中国科学院地理科学与资源研究所 | The method of nanometer humic acid joint ferrous ion activation persulfate renovation of organic pollution soil |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304363A (en) * | 2018-10-29 | 2019-02-05 | 东华大学 | A kind of chemical remediation medicament and its application method suitable for oil-polluted soils |
| CN109607664A (en) * | 2018-12-20 | 2019-04-12 | 苏州科技大学 | A kind of material and preparation method thereof of quick elimination black and odorous water |
| CN109759438A (en) * | 2019-01-25 | 2019-05-17 | 湖南新九方科技有限公司 | A kind of restorative procedure of organic polluted soil |
| CN110217877A (en) * | 2019-06-03 | 2019-09-10 | 燕山大学 | The method for handling organic wastewater as the class Fenton's reaction of oxidant using perborate |
| CN110576032A (en) * | 2019-08-29 | 2019-12-17 | 陕西地建土地工程技术研究院有限责任公司 | Method for degrading polycyclic aromatic hydrocarbon in soil by adopting mechanochemical method |
| CN111495958A (en) * | 2020-04-28 | 2020-08-07 | 中国科学院过程工程研究所 | Contaminated soil remediation method |
| CN111760899A (en) * | 2020-06-22 | 2020-10-13 | 南京农业大学 | Feeding improvement method for repairing toxic organic contaminated soil through oxidant compounding oxidation |
| CN112110625A (en) * | 2020-08-28 | 2020-12-22 | 哈尔滨工业大学（深圳） | Method for removing refractory organic matters in polluted bottom mud based on calcium peroxide Fenton strengthening technology and application |
| CN112322301A (en) * | 2020-09-30 | 2021-02-05 | 华中科技大学 | Composite soil conditioner and application thereof |
| CN115368903A (en) * | 2021-05-18 | 2022-11-22 | 中国石油化工股份有限公司 | Composition with functions of solubilizing and degrading organic pollutants and application thereof |
| CN115368901A (en) * | 2021-05-18 | 2022-11-22 | 中国石油化工股份有限公司 | Composition with function of enhancing nano calcium peroxide to repair polluted soil and application thereof |
| CN115368902A (en) * | 2021-05-18 | 2022-11-22 | 中国石油化工股份有限公司 | Kit with function of degrading organic pollutants and application thereof |
| CN115739105A (en) * | 2021-09-03 | 2023-03-07 | 中国矿业大学(北京) | Heterogeneous Fenton catalyst and preparation method and application thereof |
| CN114486415A (en) * | 2021-12-23 | 2022-05-13 | 广东贝源检测技术股份有限公司 | Method for extracting petroleum hydrocarbon in soil |
| CN114486415B (en) * | 2021-12-23 | 2024-06-07 | 广东贝源检测技术股份有限公司 | Method for extracting petroleum hydrocarbon from soil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108380663A (en) | The method that class Fenton oxidation method removes half volatile organic contaminant in soil | |
| Zhang et al. | Non-thermal plasma technology for organic contaminated soil remediation: A review | |
| Gan et al. | Remediation of soils contaminated with polycyclic aromatic hydrocarbons (PAHs) | |
| Hung et al. | Degradation of organic contaminants in marine sediments by peroxymonosulfate over LaFeO3 nanoparticles supported on water caltrop shell-derived biochar and the associated microbial community responses | |
| Öman et al. | Identification of organic compounds in municipal landfill leachates | |
| CN103464455B (en) | Method for carrying out chemical oxidation repair on organic contaminated soil by compounding potassium permanganate (KMnO4) and hydrogen peroxide (H2O2) | |
| Molnar et al. | Enhanced biodegradation of transformer oil in soils with cyclodextrin–from the laboratory to the field | |
| CN106269823A (en) | A kind of restorative procedure of high-enriched organics contaminated soil | |
| Bianco et al. | A critical review of the remediation of PAH-polluted marine sediments: current knowledge and future perspectives | |
| CN109570223A (en) | A kind of method that chemical oxidation repairs polycyclic aromatic hydrocarbon pollution | |
| CN105710125A (en) | Chemical repairing method for organic pollution soil | |
| Tao et al. | Phenanthrene degradation using Fe (III)-EDDS photoactivation under simulated solar light: a model for soil washing effluent treatment | |
| Xu et al. | Novel iron bound to soil organic matter catalyzes H2O2 to oxidize long-chain alkanes effectively in soil | |
| CN108213064A (en) | A kind of medicament of in-situ immobilization high concentration polycyclic aromatic hydrocarbon pollution and its application | |
| Kim et al. | In-situ generation of reactive oxygen species using combination of electrochemical oxidation and metal sulfide | |
| Zhao et al. | Degradation of di (2-ethylhexyl) phthalate in sediment by a surfactant-enhanced Fenton-like process | |
| CN106583441A (en) | Method for recovery of organic chloride-polluted soil through ultrasonic intensified potassium ferrate/hydrogen peroxide | |
| Su et al. | A clean production process on oily sludge with a novel collaborative process via integrating multiple approaches | |
| CN106513431A (en) | Method for collaboratively degrading 666 soil by Fe (II)/sodium percarbonate | |
| Sima et al. | Dielectric barrier discharge plasma for the remediation of microplastic-contaminated soil from landfill | |
| He et al. | Overestimate of remediation efficiency due to residual sodium persulfate in PAHs contaminated soil and a solution | |
| Xu et al. | Oriented oxidation of all alkanes in soils | |
| CN109759427A (en) | The restorative procedure of PAHs contaminated soil | |
| CN113522955A (en) | In-situ remediation method for soil polluted by volatile organic compounds | |
| Arias et al. | Removal of VOCs using electro-Fenton assisted absorption process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180810 |