CN110238184A - A kind of appraisal procedure and its application of soil chemistry oxidation repairing effect - Google Patents
A kind of appraisal procedure and its application of soil chemistry oxidation repairing effect Download PDFInfo
- Publication number
- CN110238184A CN110238184A CN201910499240.3A CN201910499240A CN110238184A CN 110238184 A CN110238184 A CN 110238184A CN 201910499240 A CN201910499240 A CN 201910499240A CN 110238184 A CN110238184 A CN 110238184A
- Authority
- CN
- China
- Prior art keywords
- soil
- repairing effect
- pollutant
- appraisal procedure
- value
- 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
Abstract
The present invention relates to a kind of chemical oxidation repairing effect appraisal procedure and its applications, and contaminated soil is pre-processed, and addition chemical agent carries out soil remediation, pollutes for present in soil, calculates repairing effect assessed value E value, complete the assessment of soil effect:Wherein: E is repairing effect assessed value；N is the type of pollutant；For the initial concentration of n pollutant；For concentration after the reparation of n pollutant.Repairing effect assessed value E value is bigger, indicates that chemical oxidation repairing effect is better.The repairing effect assessed value that the present invention obtains can more reflect that chemical agent to the repairing effect of organic material contaminated soil, can provide reference to current chemical oxidation soil remediation recruitment evaluation.
Description
Technical field
The invention belongs to technical field of soil remediation, provide a kind of chemical oxidation repairing effect appraisal procedure, and what is obtained repairs
Multiple recruitment evaluation value can more reflect chemical agent to the repairing effect of organic material contaminated soil.
Background technique
Gradually accelerate recently as Urbanization in China, the industrial structure adjusts rapidly, China's urban land resource
Preciousness will be developed and used to original soil after enterprises remove again, if the soil below former contaminated site by heavy metal,
The pollution such as pesticide, polycyclic aromatic hydrocarbon, soda acid will endanger the generation of place future plan, and restrict if not taking reclamation activities
Sustainable development.
The contaminated site in China is broadly divided into two kinds: (1) heavy metal pollution place mostlys come from smelting iron and steel enterprise,
And electric power sanitary fill, representative pollutant have arsenic, cobalt, nickel, lead etc.；(2) organic pollution place, main source chemical industry
The typical case contaminating enterprises such as factory, smeltery, coke-oven plant, insecticide factory, representative pollutant has: polycyclic aromatic hydrocarbon, benzene homologues, pesticide,
Persistent organic pollutant.The presence of these contaminated sites brings the risk of environment and health, hinders urban construction and ground
Square economic development.
Due to attribute of heavy metal itself, the route of exposure to human body is mouth intake soil, skin contact soil
3 kinds of approach such as earth, sucking particulate matter.And organic matter is reviewed with volatility, migration compared with strong, smell is big, toxicity is high, pollution model
It encloses the features such as wide, has mouth intake soil, sucking particulate matter, sucking outdoor air under the route of exposure of human body in soil
The gaseous pollutant of layer soil sucks room air from 9 kinds of approach such as gaseous pollutant of lower soil, to the danger of human body
Evil is bigger, therefore for organic polluted soil, needs to cause additional attention.
Mainly chemical oxidation is used to be repaired for organic polluted soil at present, chemical oxidation, which refers to, utilizes chemical oxidation
Pollutant is converted stable, hypotoxicity or avirulent substance process by agent.Due to currently for chemical oxidation repairing effect
Evaluation studies are less, and the present invention proposes chemical oxidation repairing effect appraisal procedure, measure to the repairing effect of different agents.
Summary of the invention
Chemical oxidation repairing effect is lacked for the prior art and is studied, the present invention provides a kind of soil chemistry oxidation reparation
Effect evaluation method, obtained repairing effect assessed value can more reflect chemical agent to the repairing effect of organic material contaminated soil,
Reference can be provided to current chemical oxidation soil remediation recruitment evaluation.
The specific technical solution of the present invention is:
A kind of appraisal procedure of soil chemistry oxidation repairing effect, pre-processes contaminated soil, adds chemical drugs
Agent carries out soil remediation, pollutes for present in soil, calculates repairing effect assessed value E value, completes the assessment of soil effect:
Wherein:
E is repairing effect assessed value；
N is the type of pollutant；
For the initial concentration of n pollutant；
For concentration after the reparation of n pollutant.
Repairing effect assessed value E value is bigger, indicates that chemical oxidation repairing effect is better.
Further, described that contaminated soil is pre-processed, it is to remove impurity, screening, the broken maximum for making soil
Partial size is no more than 0.2mm, and control water reaches about 30% moisture content.
Further, the different chemical agents for adding identical mass ratio respectively are repaired, and the time of mixing is 5 minutes,
Curing temperature is 25 DEG C, and curing time is 5 days.
The present invention also provides a kind of applications of soil chemistry oxidation repairing effect to be calculated not according to appraisal procedure
With medicament for the assessed value of soil remediation, assessed value is higher, indicates that chemical oxidation repairing effect is better.
Detailed description of the invention
Fig. 1 is the concentration profile of pollutant after 1 chemical oxidation of embodiment.
Fig. 2 is the concentration profile of pollutant after 2 chemical oxidation of embodiment.
Specific embodiment
It is explained below in conjunction with attached drawing and specific application example are novel to the present invention, so as to the phase in soil remediation field
Pass personnel preferably carry out chemical oxidation repairing effect assessment.
Embodiment 1
In a certain organic pollution place in the north, the representative contaminated soil of 5kg is chosen, contaminated soil is located in advance
Reason, removal impurity, screening, the broken maximum particle diameter for making soil are no more than 0.2mm, and control water reaches about 30% moisture content, then
Choose the contaminated soil that 5 parts of quality are respectively 500g.1 part of contaminated soil is chosen as a control group, through detecting it is found that place benzo
(a) there is pollution in anthracene, benzo (b) fluoranthene, benzo (a) pyrene, indeno [1,2,3-cd] pyrene.
4 parts of soil are chosen as experimental group, add sodium peroxydisulfate medicament, the hydrogen peroxide, A medicine that mass ratio is 1.5% respectively
Agent, B medicament.The mixing time of medicament is 5 minutes, and curing temperature is 25 DEG C, and curing time is 5 days.A medicament, B medicament are respectively
The prescription medicament product of the prior art.
Soil contains 4 kinds of pollutants, and n value is 4.Reparation appraisal procedure according to the present invention, can calculate different oxidations
Agent repairing effect assessed value.Fig. 1 is the concentration profile of pollutant after chemical oxidation.
The different oxidant repairing effect analysis and assessment tables of table 1
As seen from the above table, the repairing effect training of four kinds of reparation medicaments of experimental analysis is as follows: A medicament > B medicament > dioxygen
The chemical oxidation repairing effect of water > sodium peroxydisulfate, A medicament is best.
Embodiment 2
In a certain coke-oven plant's contaminated site in south, the representative contaminated soil of 5kg is chosen, contaminated soil is located in advance
Reason, removal impurity, screening, the broken maximum particle diameter for making soil are no more than 0.2mm, and control water reaches about 30% moisture content, then
Choose the contaminated soil that 6 parts of quality are respectively 500g.Choose 1 part of contaminated soil as a control group, through detection it is found that nitrobenzene,
There is pollution in naphthalene, chlorobenzene, benzo (k) fluoranthene, aniline.
5 parts of soil are chosen as experimental group, add respectively hypochlorous acid, hydrogen peroxide that mass ratio is 4%, A medicament, B medicament,
C medicament.The mixing time of medicament is 5 minutes, and curing temperature is 25 DEG C, and curing time is 5 days.A medicament, B medicament, C medicament point
It Wei not existing pharmaceutical products.Attached drawing 2 is the concentration profile of pollutant after chemical oxidation.
Soil contains 5 kinds of pollutants, and n value is 5.According to repair Estimate equation, can calculate different oxidants repair
Multiple recruitment evaluation value.
The different oxidant repairing effect analysis and assessment tables of table 2
As seen from the above table, the repairing effect training of five kinds of reparation medicaments of experimental analysis is as follows: A medicament > hypochlorous acid > B medicine
The chemical oxidation repairing effect of agent > hydrogen peroxide > C medicament, A medicament is best.
The above is a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, any category
In the technical scope disclosed by the present invention in those skilled in the art, any changes or substitutions that can be easily thought of should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (4)
1. a kind of appraisal procedure of soil chemistry oxidation repairing effect, which is characterized in that contaminated soil is pre-processed, is added
Add chemical agent to carry out soil remediation, polluted for present in soil, calculate repairing effect assessed value E value, completes soil effect
The assessment of fruit:
Wherein:
E is repairing effect assessed value；
N is the type of pollutant；
For the initial concentration of n pollutant；
For concentration after the reparation of n pollutant.
Repairing effect assessed value E value is bigger, indicates that chemical oxidation repairing effect is better.
2. a kind of appraisal procedure of soil chemistry oxidation repairing effect according to claim 1, which is characterized in that described right
It is pre-processed in contaminated soil, is to remove impurity, screening, the broken maximum particle diameter for making soil no more than 0.2mm, control water reaches
About 30% moisture content.
3. a kind of appraisal procedure of soil chemistry oxidation repairing effect according to claim 1, which is characterized in that add respectively
The different chemical agents of identical mass ratio are added to be repaired, the time of mixing is 5 minutes, and curing temperature is 25 DEG C, curing time
It is 5 days.
4. a kind of soil chemistry as described in claim 1 aoxidizes repairing effect appraisal procedure answering in soil remediation recruitment evaluation
With.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910499240.3A CN110238184A (en) | 2019-06-11 | 2019-06-11 | A kind of appraisal procedure and its application of soil chemistry oxidation repairing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910499240.3A CN110238184A (en) | 2019-06-11 | 2019-06-11 | A kind of appraisal procedure and its application of soil chemistry oxidation repairing effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110238184A true CN110238184A (en) | 2019-09-17 |
Family
ID=67886501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910499240.3A Pending CN110238184A (en) | 2019-06-11 | 2019-06-11 | A kind of appraisal procedure and its application of soil chemistry oxidation repairing effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110238184A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110782144A (en) * | 2019-10-16 | 2020-02-11 | 上海康恒环境修复有限公司 | Evaluation method for heavy metal contaminated soil solidification/stabilization remediation effect |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056159A (en) * | 2012-11-13 | 2013-04-24 | 新疆大学 | Assessment method of restoration effect of phenanthrene-polluted soil |
| CN104699971A (en) * | 2015-03-17 | 2015-06-10 | 天津大学 | Dynamic evaluation method for contaminated soil recovery technical effect |
| CN106442891A (en) * | 2016-10-31 | 2017-02-22 | 深圳市铁汉生态环境股份有限公司 | Evaluation method of remediation effect of soil heavy metal remediation agent |
| CN106872666A (en) * | 2017-01-22 | 2017-06-20 | 河北大学 | Appraisal procedure of the nanometer modifying agent to heavy metal passivation effect in rhizospheric environment |
| CN107066823A (en) * | 2017-04-18 | 2017-08-18 | 中山大学 | Based on plant, soil, microorganism heavy-metal contaminated soil repairing effect integrated evaluating method |
-
2019
- 2019-06-11 CN CN201910499240.3A patent/CN110238184A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056159A (en) * | 2012-11-13 | 2013-04-24 | 新疆大学 | Assessment method of restoration effect of phenanthrene-polluted soil |
| CN104699971A (en) * | 2015-03-17 | 2015-06-10 | 天津大学 | Dynamic evaluation method for contaminated soil recovery technical effect |
| CN106442891A (en) * | 2016-10-31 | 2017-02-22 | 深圳市铁汉生态环境股份有限公司 | Evaluation method of remediation effect of soil heavy metal remediation agent |
| CN106872666A (en) * | 2017-01-22 | 2017-06-20 | 河北大学 | Appraisal procedure of the nanometer modifying agent to heavy metal passivation effect in rhizospheric environment |
| CN107066823A (en) * | 2017-04-18 | 2017-08-18 | 中山大学 | Based on plant, soil, microorganism heavy-metal contaminated soil repairing effect integrated evaluating method |
Non-Patent Citations (4)
| Title |
|---|
| 刘玉洁等: "《公路环境保护与绿化》", 31 January 2008, 西南交通大学出版社 * |
| 吴邦灿: "《环境监测管理》", 28 February 1997, 中国环境科学出版社 * |
| 李俊生等: "《陆地石油开采生态风险评估的技术研究》", 30 November 2013, 中国环境出版社 * |
| 杨勇等: "化学氧化法治理焦化厂PAHs污染土壤", 《环境工程学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110782144A (en) * | 2019-10-16 | 2020-02-11 | 上海康恒环境修复有限公司 | Evaluation method for heavy metal contaminated soil solidification/stabilization remediation effect |
| CN110782144B (en) * | 2019-10-16 | 2023-08-08 | 上海康恒环境修复有限公司 | Evaluation method for solidification/stabilization restoration effect of heavy metal contaminated soil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Xu et al. | Occurrence and risk assessment of potentially toxic elements and typical organic pollutants in contaminated rural soils | |
| Cui et al. | Spatial–temporal variation, possible source and ecological risk of PCBs in sediments from Songhua River, China: Effects of PCB elimination policy and reverse management framework | |
| CN108856275A (en) | A kind of method of repairing polluted soil and Organic Chemicals In Groundwater | |
| CN103396806A (en) | Agent and method used for remedying heavy metal polluted soil | |
| CN108213073A (en) | A kind of restorative procedure of heavy-metal contaminated soil | |
| CN110238184A (en) | A kind of appraisal procedure and its application of soil chemistry oxidation repairing effect | |
| Wan et al. | Pollution status of agricultural land in China: impact of land use and geographical position. | |
| Chiu et al. | Characterization of contamination in and toxicities of a shipyard area in Hong Kong | |
| Grosskopf | Post‐disaster recovery and reconstruction safety training | |
| CN104117535B (en) | A kind of method of soil in-situ chemical redemption | |
| CN103586277A (en) | Method for treating contaminated shallow underground water and soil by utilizing bioremediation agent | |
| CN103521509B (en) | A kind of electronic oxidation strengthening technique for renovation of organic pollution soil | |
| CN109746257A (en) | A kind of method of soil in-situ chemical remediation | |
| Hou et al. | Distribution and health risk assessment of polycyclic aromatic hydrocarbons in soil from a typical contaminated urban coking sites in Shenyang City | |
| Tippat et al. | Survey of bio-medical waste disposal system in some hospitals of Amravati city | |
| Kamil et al. | Hazards due to polycyclic aromatic hydrocarbons (PAHs) and heavy metals at the closed Kubang Badak landfill, Selangor | |
| Yang | Global challenges and solutions of emerging contaminants: An editorial overview and beyond | |
| ZHANG et al. | Co-occurrence of PFASs, heavy metals and PAHs and their composite impacts on microbial consortium in soil: A field study | |
| CN103624075B (en) | By the method that stone in the moon/nonionic surfactant wash-out soil and/or building waste surface chloronitrobenzene class are polluted | |
| CN107282612A (en) | It is a kind of to prevent the automation soil restoring device of secondary pollution | |
| CN209935507U (en) | A repair system for petroleum hydrocarbon pollutes soil | |
| Sharma et al. | Bio-medical waste management: An overview of various technologies | |
| CN205732270U (en) | A kind of automated mine administers soil restoring device | |
| CN110576034B (en) | Soil in-situ remediation method | |
| CN108480384A (en) | The method of rehabilitating soil |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190917 |
|
| WD01 | Invention patent application deemed withdrawn after publication |