CN108838204A - A kind of restorative procedure of organic polluted soil - Google Patents
A kind of restorative procedure of organic polluted soil Download PDFInfo
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- CN108838204A CN108838204A CN201810707884.2A CN201810707884A CN108838204A CN 108838204 A CN108838204 A CN 108838204A CN 201810707884 A CN201810707884 A CN 201810707884A CN 108838204 A CN108838204 A CN 108838204A
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- soil
- restorative procedure
- organic polluted
- polluted soil
- organic
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- 239000002689 soil Substances 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000003610 charcoal Substances 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 16
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims description 8
- 239000002028 Biomass Substances 0.000 claims description 7
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 6
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 229920005610 lignin Polymers 0.000 claims description 4
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 3
- 238000011109 contamination Methods 0.000 claims description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical group [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- 235000019394 potassium persulphate Nutrition 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 241000609240 Ambelania acida Species 0.000 claims description 2
- 239000010905 bagasse Substances 0.000 claims description 2
- 239000010902 straw Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 6
- 230000008439 repair process Effects 0.000 abstract description 4
- 230000035558 fertility Effects 0.000 abstract description 3
- 231100000419 toxicity Toxicity 0.000 abstract description 2
- 230000001988 toxicity Effects 0.000 abstract description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- FMMWHPNWAFZXNH-UHFFFAOYSA-N Benz[a]pyrene Chemical compound C1=C2C3=CC=CC=C3C=C(C=C3)C2=C2C3=CC=CC2=C1 FMMWHPNWAFZXNH-UHFFFAOYSA-N 0.000 description 8
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 8
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 8
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 8
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 8
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 8
- TXVHTIQJNYSSKO-UHFFFAOYSA-N BeP Natural products C1=CC=C2C3=CC=CC=C3C3=CC=CC4=CC=C1C2=C34 TXVHTIQJNYSSKO-UHFFFAOYSA-N 0.000 description 4
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 4
- 238000004587 chromatography analysis Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000004817 gas chromatography Methods 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 238000009418 renovation Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000003918 potentiometric titration Methods 0.000 description 2
- 238000005067 remediation Methods 0.000 description 2
- 238000003900 soil pollution Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000760 phototoxic Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010907 stover Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B77/00—Machines for lifting and treating soil
Abstract
The present invention provides a kind of restorative procedure of organic polluted soil, and the restorative procedure is that organic polluted soil, persulfate and charcoal powder are mixed to get pre- rehabilitating soil, and the pre- rehabilitating soil, which is aged 30~40 days, can repair the organic polluted soil.The restorative procedure can not only effectively eliminate the organic pollutant in soil, Organic carbon can also be supplemented for soil, reduced the toxicity of contaminated soil and restored soil fertility, do not generate secondary pollution, realize it is efficient to organic polluted soil, green, safe, thoroughly repair, provide new way for the highly effective and safe reparation of organic polluted soil.
Description
Technical field
The invention belongs to technical field of soil remediation, specifically a kind of charcoal-persulfate combines renovation of organic pollution
The method of soil.
Background technique
Soil pollution has become worldwide environmental problem, ratio shared by the quickening organic polluted soil with process of industrialization
Example is higher and higher.According to statistics, the contaminated arable land in China has accounted for 20% or more of whole nation arable land, and wherein organic contamination farmland is up to
36000000 hm2.Serious soil pollution has injured food safety, human health, ecological safety and agricultural sustainable development, even
Influence agricultural product foreign trade and Environmental diplomacy interests.Thus, the improvement of contaminated soil has been very urgent.
Charcoal is a kind of high-carbon solid residue, mainly by aromatic hydrocarbon and simple substance carbon or with graphite-like structure.Biomass
The ability that the porous structure of charcoal and surface oxygen-containing functional group abundant make biomass carbon have stronger absorption noxious material,
It is widely used in terms of contaminated soil remediation.For example, charcoal can be effective to reduce heavy metal biological by improving the pH value of soil
Property, also its soil mobility can be reduced by the fixed heavy metal of cation adsorption, while charcoal can also pass through improvement
With increase soil fertility reduce heavy metal for plant toxic action (CN105618478A, CN104258809B,
CN104368306B,CN104307855B,CN105127187A).The pore structure of charcoal prosperity and huge specific surface area,
So that it also has excellent absorption property to organic pollutant, huge potentiality are shown in terms of organic polluted soil reparation
With application value (CN104550209A, CN103894411A, CN106701096A).However charcoal adsorbs organic pollutant
Afterwards, its complete oxidation can not be degraded, over time, the pollutant for being adsorbed on biological carbon surface may be released again
It puts, leads to secondary pollution.Song discloses a kind of biomass carbon base soil-repairing agent and preparation method thereof at virtue et al., utilizes dioxy
Change titanium and charcoal combines renovation of organic pollution soil, pollutant is adsorbed by charcoal, then passes through the height of titanium dioxide again
Photochemical activity aoxidizes organic pollutant, to reach completely removing for organic contaminants in soil.Forefathers are research shows that dioxy
Changing titanium has photo-toxic, influences ecological environment of soil, may cause secondary pollution.Therefore Development of Novel it is environmental-friendly based on
The organic polluted soil recovery technique of active carbon is imperative.
Summary of the invention
It is an object of the invention to solve above-mentioned problems of the prior art, provide it is a kind of efficiently, green, safety,
The restorative procedure of thorough organic polluted soil.
For achieving the above object, the technical scheme adopted by the invention is that：
A kind of restorative procedure of organic polluted soil, the restorative procedure are by organic polluted soil, persulfate and life
Object carbon powder is mixed to get pre- rehabilitating soil, and the pre- rehabilitating soil, which is aged, can repair the organic contamination soil for 30~40 days
Earth.
Preferably, the mass ratio of the organic polluted soil, persulfate and charcoal powder is 100：1~5：0.5~
3。
Preferably, in ageing process, the moisture content of the pre- rehabilitating soil is 20~50%.
Preferably, partial size≤1cm of the charcoal powder.
Preferably, the preparation method of the charcoal powder is as follows：In nitrogen after biomass containing lignin is shredded
300~500 DEG C of 1~3h of Pintsch process under atmosphere are crushed after cooling up to the charcoal powder.
Preferably, the biomass containing lignin is straw, shell, sawdust, leaf or bagasse.
Preferably, the persulfate is potassium peroxydisulfate, ammonium persulfate or sodium peroxydisulfate
The beneficial effects of the invention are as follows：Restorative procedure provided by the invention has using charcoal, persulfate joint reparation
Persulfate is reduced to potentiometric titrations by the strong electron supplying capacity of reproducibility component in charcoal by machine contaminated soil,
Using the organic pollutant in the strong oxidizing property oxidative degradation soil of potentiometric titrations, restorative procedure of the present invention is enhanced
The single effect using charcoal renovation of organic pollution soil, can not only effectively eliminate the organic pollutant in soil, moreover it is possible to be
Soil supplements Organic carbon, reduces the toxicity of contaminated soil and restores soil fertility, does not generate secondary pollution, realizes to organic dirt
Dye soil is efficient, green, safety, thoroughly repairs, and provides new way for the highly effective and safe reparation of organic polluted soil.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the technical solution below in the present invention carries out clear
Chu is fully described by, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is sample that organic polluted soil described in following embodiment of the present invention, which takes Yunnan somewhere organic polluted soil, wherein
Toluene, dimethylbenzene, naphthalene, pyrene, benzo (a) pyrene, anthracene, phenanthrene content be respectively 710mg/kg, 450mg/kg, 110mg/kg,
250mg/kg、210mg/kg、105mg/kg、90mg/kg。
Embodiment 1
A kind of restorative procedure of organic polluted soil, the specific steps are：
(1) it is dried after cleaning up corn stover, is subsequently placed in baking oven dry 2h, then stalk is cut into and is no longer than
The fragment of 1cm, is placed in tube furnace, and under 300 DEG C and nitrogen atmosphere, Pintsch process 3h is ground after cooling, obtains partial size
The charcoal powder of 2mm；
(2) by organic polluted soil, charcoal powder and sodium peroxydisulfate in mass ratio 100：2：3, it is placed into blender
Mixing is sufficiently stirred, daily toward spraying water on contaminated soil, controls the moisture content of contaminated soil 30%, ageing 30 days.
After organic polluted soil described in the present embodiment is repaired, obtained wherein using gas-chromatography and efficient liquid phase chromatographic analysis
Organic matter toluene, dimethylbenzene, naphthalene, pyrene, benzo (a) pyrene, anthracene, phenanthrene content be respectively 82mg/kg, 73mg/kg, 21mg/kg,
42mg/kg, 16mg/kg, 11mg/kg, 9.6mg/kg, then its removal rate be respectively 88.4%, 83.8%, 80.9%, 83.2%,
92.4%, 89.5%, 89.3%.
Embodiment 2
A kind of restorative procedure of organic polluted soil：
(1) it is dried after cleaning up leaf, is subsequently placed in baking oven dry 2h, then leaf is cut into no longer than 1cm
Fragment, be placed in tube furnace, under 400 DEG C and nitrogen atmosphere, Pintsch process 3h is ground after cooling, obtains partial size 2mm's
Charcoal powder；
(2) by organic polluted soil, charcoal powder and potassium peroxydisulfate in mass ratio 100：0.5：1, it is placed into blender
In mixing is sufficiently stirred, daily toward spraying water on contaminated soil, control the moisture content of contaminated soil 20%, ageing 35 days.
After organic polluted soil described in the present embodiment is repaired, obtained wherein using gas-chromatography and efficient liquid phase chromatographic analysis
Organic matter toluene, dimethylbenzene, naphthalene, pyrene, benzo (a) pyrene, anthracene, phenanthrene content be respectively 54mg/kg, 61mg/kg, 14mg/kg,
33mg/kg, 13mg/kg, 10mg/kg, 7.2mg/kg, then its removal rate be respectively 92.4%, 86.4%, 87.3%, 86.8%,
93.8%, 89.5%, 92%.
Embodiment 3
A kind of restorative procedure of organic polluted soil：
(1) it is dried after cleaning up shell, is subsequently placed in baking oven dry 2h, then shell is cut into no longer than 1cm
Fragment, be placed in tube furnace, under 500 DEG C and nitrogen atmosphere, Pintsch process 3h is ground after cooling, obtains partial size 2mm's
Charcoal powder；
(2) by organic polluted soil, charcoal powder and ammonium persulfate in mass ratio 100：3：5, it is placed into blender
Mixing is sufficiently stirred, daily toward spraying water on contaminated soil, controls the moisture content of contaminated soil 50%, ageing 40 days.
After organic polluted soil described in the present embodiment is repaired, obtained wherein using gas-chromatography and efficient liquid phase chromatographic analysis
Organic matter toluene, dimethylbenzene, naphthalene, pyrene, benzo (a) pyrene, anthracene, phenanthrene content be respectively 93mg/kg, 82mg/kg, 39mg/kg,
53mg/kg, 28mg/kg, 21mg/kg, 8.2mg/kg, then its removal rate be respectively 86.9%, 81.8%, 64.6%, 78.8%,
86.7%, 80%, 90.9%.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that：It still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (7)
1. a kind of restorative procedure of organic polluted soil, which is characterized in that the restorative procedure is by organic polluted soil, over cure
Hydrochlorate and charcoal powder are mixed to get pre- rehabilitating soil, and the pre- rehabilitating soil is aged described in can repairing within 30~40 days has
Machine contaminated soil.
2. a kind of restorative procedure of organic polluted soil according to claim 1, which is characterized in that the organic contamination soil
The mass ratio of earth, persulfate and charcoal powder is 100：1~5：0.5~3.
3. a kind of restorative procedure of organic polluted soil according to claim 1, which is characterized in that in ageing process, institute
The moisture content for stating pre- rehabilitating soil is 20~50%.
4. a kind of restorative procedure of organic polluted soil according to claim 1, which is characterized in that the charcoal powder
Partial size≤1cm.
5. a kind of restorative procedure of organic polluted soil according to claim 1, which is characterized in that the charcoal powder
Preparation method it is as follows：300~500 DEG C of 1~3h of Pintsch process in a nitrogen atmosphere after biomass containing lignin is shredded,
It is crushed after cooling up to the charcoal powder.
6. a kind of restorative procedure of organic polluted soil according to claim 5, which is characterized in that described to contain lignin
Biomass be straw, shell, sawdust, leaf or bagasse.
7. a kind of restorative procedure of organic polluted soil according to claim 1, which is characterized in that the persulfate is
Potassium peroxydisulfate, ammonium persulfate or sodium peroxydisulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810707884.2A CN108838204A (en) | 2018-07-02 | 2018-07-02 | A kind of restorative procedure of organic polluted soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810707884.2A CN108838204A (en) | 2018-07-02 | 2018-07-02 | A kind of restorative procedure of organic polluted soil |
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| Publication Number | Publication Date |
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| CN108838204A true CN108838204A (en) | 2018-11-20 |
Family
ID=64200063
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| CN201810707884.2A Pending CN108838204A (en) | 2018-07-02 | 2018-07-02 | A kind of restorative procedure of organic polluted soil |
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| 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 |
| CN111229813A (en) * | 2020-02-12 | 2020-06-05 | 山东农业工程学院 | Soil remediation method |
| US11124461B2 (en) | 2019-07-04 | 2021-09-21 | Incitec Pivot Limited | Fertilizer |
| CN113695375A (en) * | 2020-05-22 | 2021-11-26 | 中国环境科学研究院 | Soil pollution remediation method and device |
| CN115026113A (en) * | 2022-05-31 | 2022-09-09 | 上海交通大学 | Method for synergistically repairing polluted soil by combining modified biochar with aromatic plants |
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Application publication date: 20181120 |