CN109319871A - A kind of method that selective absorption regeneration recycling organic polluted soil repairs eluent - Google Patents
A kind of method that selective absorption regeneration recycling organic polluted soil repairs eluent Download PDFInfo
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- CN109319871A CN109319871A CN201811210136.XA CN201811210136A CN109319871A CN 109319871 A CN109319871 A CN 109319871A CN 201811210136 A CN201811210136 A CN 201811210136A CN 109319871 A CN109319871 A CN 109319871A
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- eluent
- polluted soil
- selective absorption
- organic polluted
- resin
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/301—Detergents, surfactants
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of selective absorptions to regenerate the method that recycling organic polluted soil repairs eluent.This method comprises the following steps: 1) resin being added to organic polluted soil as adsorbent and repaired in eluent, is mixed, carry out selective absorption removal to the organic pollutant in eluent；2) eluent and resin after removing selective absorption are separated by solid-liquid separation, and realize the regeneration recycling of eluent.The present invention repairs eluent using resins selective absorption regeneration recycling organic polluted soil, can selective absorption removal soil elution liquid in organic pollutant, the eluent containing surfactant can be recycled again, eluent is set to be recycling in the elution reparation of organic polluted soil, the waste that can avoid resource, reduces the processing cost and secondary pollution of eluent.
Description
Technical field
The present invention relates to a kind of selective absorptions to regenerate the method that recycling organic polluted soil repairs eluent, especially sets
The method that rouge selective absorption regeneration recycling organic polluted soil repairs eluent.
Background technique
Surfactant enhanced remediation technology (SER) is a kind of effective organic polluted soil and groundwater remediation method,
Surfactant can greatly increase the solubility of hydrophobic organic compound in the solution, it is made to be easier to be desorbed from contaminated soil,
To achieve the purpose that reparation.However, a large amount of uses of surfactant and additional cost for wastewater treatment limit SER technology
Practical application.Regeneration and recycling surfactant solution can cost-effectively handle organic contamination and repair eluent, and solvent
Cost recovery is high, complicated for operation, energy consumption is high for the methods of extraction, electrochemical treatments and infiltration evaporation, and practical application is restricted.
Absorption method is that one kind efficiently separates purification process, and selective absorption can remove organic polluted soil reparation and wash
Organic matter in de- liquid, and recycling surfactant solution can be retained, it is possible to reduce the operating cost of SER technology.Therefore, it selects
A kind of suitable adsorbent is most important.It can be used for regenerating the absorption that recycling organic polluted soil repairs eluent in existing literature
Agent is mainly active carbon and organobentonite.But both adsorbents not yet realize scale engineer application.Therefore, it is still necessary to study
Exploitation more more efficient selective absorbents and method.
Resin has been widely used at waste water since larger with specific surface area, regeneration is simple, good selective
Reason etc..Therefore, resin carrys out selective absorption removal organic polluted soil reparation possible as a kind of good adsorbent
Organic matter and retention surface activator solution in eluent is to be recycled.But there has been no use resin conduct so far
Adsorbent is reported to regenerate the method that recycling organic polluted soil repairs eluent.Therefore, this patent proposes a kind of using tree
The method that rouge selective absorption regeneration recycling organic polluted soil repairs eluent.
Summary of the invention
The object of the present invention is to provide a kind of selective absorptions to regenerate the method that recycling organic polluted soil repairs eluent.
Include the following steps:
1) resin is added to organic polluted soil as adsorbent to repair in eluent, is mixed, in eluent
Organic pollutant carry out selective absorption removal；
2) eluent and resin after removing selective absorption are separated by solid-liquid separation, and realize the regeneration recycling of eluent.
The adsorbent is resin, including phenylethylene hydrophobic type resin, hydrophilic ion exchange resin and hydrophilic
Nonionic exchange resin.It is anionic surfactant or nonionic table that organic polluted soil, which repairs the active constituent in eluent,
Face activating agent, concentration range are 200mg/L~50000mg/L.Object is adsorbed as organic pollutant, including polycyclic aromatic hydrocarbon,
Polychlorinated biphenyls, aromatic hydrocarbons, alkanes.When selective absorption is handled, amount of resin is 0.1~200g/L.
For the present invention using resin as adsorbent, selective absorption regeneration recycling organic polluted soil repairs eluent, Ji Nengxuan
Organic pollutant in selecting property Adsorption soil elution liquid, and the eluent containing surfactant can be recycled, enable eluent
It is recycling in the elution reparation of organic polluted soil, can avoid the waste of resource, reduces the processing cost of eluent and secondary
Pollution.There is good economy and environmental benefit in practical applications.
Specific embodiment
Now illustrate the present invention with following examples.
Embodiment 1
The phenylethylene hydrophobic type resin of 0.1g/L is added to organic polluted soil as adsorbent to repair in eluent,
The organic matter (polycyclic aromatic hydrocarbon) of anionic surfactant and 20mg/L in eluent containing 200mg/L is mixed, right
Organic pollutant in eluent carries out selective absorption removal.Eluent and resin after selective absorption is removed are consolidated
The regeneration recycling of eluent is realized in liquid separation.Resin repairs the removal rate of polycyclic aromatic hydrocarbon in eluent to organic polluted soil
98.0%, and the adsorption loss of Surfactant is 25.0%, can recycle 75.0% surfactant.
Embodiment 2
The phenylethylene hydrophobic type resin of 0.1g/L is added to organic polluted soil as adsorbent to repair in eluent,
The organic matter (polycyclic aromatic hydrocarbon) of anionic surfactant and 20mg/L in eluent containing 5000mg/L is mixed,
Selective absorption removal is carried out to the organic pollutant in eluent.Eluent and resin after selective absorption is removed carry out
It is separated by solid-liquid separation, realizes the regeneration recycling of eluent.Resin repairs the removal rate of polycyclic aromatic hydrocarbon in eluent to organic polluted soil
It is 62.9%, and the adsorption loss of Surfactant is 1.00%, can recycle 99.0% surfactant.
Embodiment 3
The phenylethylene hydrophobic type resin of 1.5g/L is added to organic polluted soil as adsorbent to repair in eluent,
The organic matter (polycyclic aromatic hydrocarbon) of nonionic surfactant and 20mg/L in eluent containing 10000mg/L is mixed,
Selective absorption removal is carried out to the organic pollutant in eluent.Eluent and resin after selective absorption is removed carry out
It is separated by solid-liquid separation, realizes the regeneration recycling of eluent.Resin repairs the removal rate of polycyclic aromatic hydrocarbon in eluent to organic polluted soil
It is 98.4%, and the adsorption loss of Surfactant is 7.50%, can recycle 92.5% surfactant.
Embodiment 4
The phenylethylene hydrophobic type resin of 40g/L is added to organic polluted soil as adsorbent to repair in eluent,
The organic matter (Polychlorinated biphenyls) of anionic surfactant and 20mg/L in eluent containing 50000mg/L is mixed,
Selective absorption removal is carried out to the organic pollutant in eluent.Eluent and resin after selective absorption is removed carry out
It is separated by solid-liquid separation, realizes the regeneration recycling of eluent.Resin repairs the removal rate of Polychlorinated biphenyls in eluent to organic polluted soil
It is 99.0%, and the adsorption loss of Surfactant is 40.0%, can recycle 60.0% surfactant.
Embodiment 5
The hydrophilic ion exchange resin of 200g/L is added to organic polluted soil as adsorbent to repair in eluent,
The organic matter (Polychlorinated biphenyls) of anionic surfactant and 20mg/L in eluent containing 50000mg/L is mixed,
Selective absorption removal is carried out to the organic pollutant in eluent.Eluent and resin after selective absorption is removed carry out
It is separated by solid-liquid separation, realizes the regeneration recycling of eluent.Resin repairs the removal rate of Polychlorinated biphenyls in eluent to organic polluted soil
It is 99.0%, and the adsorption loss of Surfactant is 20.0%, can recycle 80.0% surfactant.
Embodiment 6
The hydrophilic ion exchange resin of 0.1g/L is added to organic polluted soil as adsorbent to repair in eluent,
The organic matter (Polychlorinated biphenyls) of nonionic surfactant and 20mg/L in eluent containing 200mg/L, in eluent
Organic pollutant carry out selective absorption removal.Eluent and resin after selective absorption is removed are separated by solid-liquid separation,
Realize the regeneration recycling of eluent.The removal rate that resin repairs Polychlorinated biphenyls in eluent to organic polluted soil is 76.0%,
And the adsorption loss of Surfactant is 40.0%, can recycle 60.0% surfactant.
Embodiment 7
The hydrophilic ion exchange resin of 1.5g/L is added to organic polluted soil as adsorbent to repair in eluent,
The organic matter (alkanes) of anionic surfactant and 20mg/L in eluent containing 5000mg/L is mixed, right
Organic pollutant in eluent carries out selective absorption removal.Eluent and resin after selective absorption is removed are consolidated
The regeneration recycling of eluent is realized in liquid separation.Resin repairs the removal rate of alkanes in eluent to organic polluted soil
90.0%, and the adsorption loss of Surfactant is 24.0%, can recycle 76.0% surfactant.
Embodiment 8
The hydrophilic ion exchange resin of 40g/L is added to organic polluted soil as adsorbent to repair in eluent,
The organic matter (alkanes) of nonionic surfactant and 20mg/L in eluent containing 20000mg/L is mixed, right
Organic pollutant in eluent carries out selective absorption removal.Eluent and resin after selective absorption is removed are consolidated
The regeneration recycling of eluent is realized in liquid separation.Resin repairs the removal rate of alkanes in eluent to organic polluted soil
90.0%, and the adsorption loss of Surfactant is 40.0%, can recycle 60.0% surfactant.
Embodiment 9
The hydrophilic nonionic exchange resin of 200g/L is added to organic polluted soil as adsorbent and repairs eluent
In, the organic matter (alkanes) of nonionic surfactant and 20mg/L in eluent containing 50000mg/L, mixing is stirred
It mixes, selective absorption removal is carried out to the organic pollutant in eluent.Eluent and resin after selective absorption is removed
It is separated by solid-liquid separation, realizes the regeneration recycling of eluent.Resin repairs the removal of alkanes in eluent to organic polluted soil
Rate is 98.0%, and the adsorption loss of Surfactant is 20.0%, can recycle 80.0% surfactant.
Embodiment 10
The hydrophilic nonionic exchange resin of 1g/L is added to organic polluted soil as adsorbent to repair in eluent,
The organic matter (aromatic hydrocarbons) of anionic surfactant and 20mg/L in eluent containing 5000mg/L is mixed, right
Organic pollutant in eluent carries out selective absorption removal.Eluent and resin after selective absorption is removed are consolidated
The regeneration recycling of eluent is realized in liquid separation.Resin repairs the removal rate of aromatic hydrocarbons in eluent to organic polluted soil
92.3%, and the adsorption loss of Surfactant is 10.0%, can recycle 90.0% surfactant.
Embodiment 11
The hydrophilic nonionic exchange resin of 40g/L is added to organic polluted soil as adsorbent and repairs eluent
In, the organic matter (aromatic hydrocarbons) of anionic surfactant and 20mg/L in eluent containing 20000mg/L, mixing is stirred
It mixes, selective absorption removal is carried out to the organic pollutant in eluent.Eluent and resin after selective absorption is removed
It is separated by solid-liquid separation, realizes the regeneration recycling of eluent.Resin repairs the removal of aromatic hydrocarbons in eluent to organic polluted soil
Rate is 90.0%, and the adsorption loss of Surfactant is 10.0%, can recycle 90.0% surfactant.
Embodiment 12
The hydrophilic nonionic exchange resin of 200g/L is added to organic polluted soil as adsorbent and repairs eluent
In, the organic matter (aromatic hydrocarbons) of nonionic surfactant and 20mg/L in eluent containing 50000mg/L, mixing is stirred
It mixes, selective absorption removal is carried out to the organic pollutant in eluent.Eluent and resin after selective absorption is removed
It is separated by solid-liquid separation, realizes the regeneration recycling of eluent.Resin repairs the removal of aromatic hydrocarbons in eluent to organic polluted soil
Rate is 98.0%, and the adsorption loss of Surfactant is 20.0%, can recycle 80.0% surfactant.
Claims (6)
1. a kind of method that selective absorption regeneration recycling organic polluted soil repairs eluent, which is characterized in that including as follows
Step:
1) resin is added to organic polluted soil as adsorbent to repair in eluent, is mixed, to having in eluent
Machine pollutant carries out selective absorption removal；
2) eluent and resin after removing selective absorption are separated by solid-liquid separation, and realize the regeneration recycling of eluent.
2. a kind of method that selective absorption regeneration recycling organic polluted soil repairs eluent according to claim 1,
It is characterized in that, the adsorbent is resin, including phenylethylene hydrophobic type resin, hydrophilic ion exchange resin and hydrophilic
Type nonionic exchange resin.
3. a kind of method that selective absorption regeneration recycling organic polluted soil repairs eluent according to claim 1,
It is characterized in that, it is surfactant, including anion table that the organic polluted soil, which repairs the active constituent in eluent,
Face activating agent or nonionic surfactant.
4. a kind of method that selective absorption regeneration recycling organic polluted soil repairs eluent according to claim 1,
It is characterized in that, the selective absorption refers to that the organic pollutant being adsorbed includes polycyclic aromatic hydrocarbon, Polychlorinated biphenyls, aromatic hydrocarbons
Class, alkanes.
5. a kind of method that selective absorption regeneration recycling organic polluted soil repairs eluent according to claim 1,
It is characterized in that, the organic polluted soil repair eluent and be containing surfactant concentration ranges 200mg/L~
The eluent of 50000mg/L.
6. a kind of side for selecting selective absorption regeneration recycling organic polluted soil to repair eluent according to claim 1
Method, it is characterised in that: in step (1), the amount of resin is 0.1~200g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811210136.XA CN109319871A (en) | 2018-10-17 | 2018-10-17 | A kind of method that selective absorption regeneration recycling organic polluted soil repairs eluent |
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| CN201811210136.XA CN109319871A (en) | 2018-10-17 | 2018-10-17 | A kind of method that selective absorption regeneration recycling organic polluted soil repairs eluent |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109985895A (en) * | 2019-03-14 | 2019-07-09 | 中国矿业大学 | Organic polluted soil prosthetic device and method |
| CN112979043A (en) * | 2021-03-05 | 2021-06-18 | 生态环境部南京环境科学研究所 | Purification and recovery device of synergistic eluent for restoring organochlorine pesticide contaminated soil |
| CN117427607A (en) * | 2023-12-11 | 2024-01-23 | 广东工业大学 | Method for treating polychlorinated biphenyl in soil eluent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386019A (en) * | 2008-06-04 | 2009-03-18 | 北京师范大学 | Cyclic regeneration method for repairing cyclodextrin eluent in polycyclic aromatic hydrocarbon contaminated soil |
| CN102531101A (en) * | 2011-12-21 | 2012-07-04 | 沈阳大学 | Recovery unit of TCAS (thiacalix[4]arenetetrasulfonate) soil eluting agent and recovery method thereof |
| CN202498076U (en) * | 2011-12-21 | 2012-10-24 | 沈阳大学 | Contaminated soil remediation device |
-
2018
- 2018-10-17 CN CN201811210136.XA patent/CN109319871A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386019A (en) * | 2008-06-04 | 2009-03-18 | 北京师范大学 | Cyclic regeneration method for repairing cyclodextrin eluent in polycyclic aromatic hydrocarbon contaminated soil |
| CN102531101A (en) * | 2011-12-21 | 2012-07-04 | 沈阳大学 | Recovery unit of TCAS (thiacalix[4]arenetetrasulfonate) soil eluting agent and recovery method thereof |
| CN202498076U (en) * | 2011-12-21 | 2012-10-24 | 沈阳大学 | Contaminated soil remediation device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109985895A (en) * | 2019-03-14 | 2019-07-09 | 中国矿业大学 | Organic polluted soil prosthetic device and method |
| CN112979043A (en) * | 2021-03-05 | 2021-06-18 | 生态环境部南京环境科学研究所 | Purification and recovery device of synergistic eluent for restoring organochlorine pesticide contaminated soil |
| CN117427607A (en) * | 2023-12-11 | 2024-01-23 | 广东工业大学 | Method for treating polychlorinated biphenyl in soil eluent |
| CN117427607B (en) * | 2023-12-11 | 2024-06-04 | 广东工业大学 | Method for treating polychlorinated biphenyl in soil eluent |
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Application publication date: 20190212 |