CN101480602A - Method for handling sudden organic pollution event - Google Patents
Method for handling sudden organic pollution event Download PDFInfo
- Publication number
- CN101480602A CN101480602A CNA2008101898702A CN200810189870A CN101480602A CN 101480602 A CN101480602 A CN 101480602A CN A2008101898702 A CNA2008101898702 A CN A2008101898702A CN 200810189870 A CN200810189870 A CN 200810189870A CN 101480602 A CN101480602 A CN 101480602A
- Authority
- CN
- China
- Prior art keywords
- organic
- organobentonite
- soil
- organic liquid
- surfactant
- 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
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to the technical field of environmental engineering, and particularly relates to a method for dealing with emergent organic pollution events of soil or water. The method comprises the following steps of taking quaternary ammonium salt type cation surfactant and cation type polyacrylamide as ion exchange modifiers, and preparing raw soil of swell oil into series organic swell oil powder; jetting and adding the organic swell soil powder into soil or water polluted by organic liquid by a direct mode or a machine, wherein the organic swell oil fixedly intercepts the organic liquid and adsorb and extract organic liquid in the soil or the water, thereby preventing the organic liquid from further spreading to pollute the surrounding environment; and then reclaiming the organic liquid fixedly intercepted by the organic swell soil by a centrifuging method or a natural setting compact method for recycling. The method can be used for various leakage events generated in the process of production, storage and transportation of organic substances in the chemical industry or daily life.
Description
Technical field
The invention belongs to the environmental engineering technical field, be specifically related to the method for the sudden organic pollution event handling in a kind of soil or waters.
Background technology
In recent years, develop rapidly along with China's industry, organic matter is produced, is stored and the amount of transportation all increases greatly, this causes China recent years sudden organic pollution incident to take place frequently, large amount of organic soil, water body diffusion mobility towards periphery in back takes place in incident, ecological environment, people ' s health and social safety produced have a strong impact on.Two benzene factories of Jilin Petrochemical company of CNPC explosive incident as taking place in November, 2005 causes pollutant severe overweights such as Song Hua River benzene, nitrobenzene, has destroyed ecological environment, has greatly influenced the people's normal life, and has brought serial international relations problem.And China handles the main applied activated carbon of this type of sudden organic pollution incident, but active carbon exists unsoluble-unexpansive, costs an arm and a leg, saturated extent of adsorption is little and shortcoming such as regeneration difficulty, uses and is subjected to certain restriction.Therefore, clearly propose in country's " 863 Program " problem guide for application of announcing in September, 2007, the actual state that takes place frequently from the current great environment organic contamination incident of China, research and develop out the great environment organic contamination incident emergence technology system that is fit to China's national situation, research and develop new material, the new technology of efficient absorption, blocking-up, locking and the curing of typical organic pollution energetically, to strengthen the emergency processing ability of sudden organic pollution incident.
Summary of the invention
The objective of the invention is at existing deficiency in the prior art of above-mentioned processing sudden organic pollution incident, a kind of bentonite strong oil-wet and quick swellability of utilizing is provided, adsorbs, fix, hold back and extract the processing method of the organic pollution that leaks in the sudden organic pollution incident.
Method provided by the invention comprises the step of following order:
(1) with quaternary ammonium salt cationic surfactant and cationic-type polyacrylamide as the ion-exchanged agent, the bentonite original soil is prepared into serial organobentonite powder;
(2) the organobentonite powder directly or with the machine injection is added in the soil or water that is subjected to organic liquid contamination;
(3) organobentonite is fixedly held back organic liquid, simultaneously can adsorbing and extracting soil or water in organic liquid, thereby stop its further diffuse pollution surrounding environment;
(4) organobentonite that will fixedly hold back organic liquid reclaims organic liquid by centrifugal process or natural subsidence compacting, so that utilize again.
Above-mentioned quaternary ammonium cation surfactant has long hydrophobic alkyl chain, as DTAB, TTAB, softex kw, the octadecyl trimethylammonium bromide, didodecyldimethylammbromide bromide, two octadecyl dimethyl ammonium bromides etc.; Described organic liquid such as benzene, nitrobenzene, dimethylbenzene, gasoline or diesel oil etc.Wherein, be in the organobentonite of surfactant preparation with the softex kw, the load capacity of softex kw is 0.6,0.8,1.0,1.2,1.4,1.6,1.8 and 2.0CEC; With DTAB, TTAB, octadecyl trimethylammonium bromide, didodecyldimethylammbromide bromide, two octadecyl dimethyl ammonium bromide is that the load capacity of surfactant is 1.0CEC in the organobentonite of surfactant preparation.
In addition, in the above-mentioned organobentonite, the ion-exchanged agent can comprise cationic surfactant and cationic-type polyacrylamide simultaneously.Wherein, the load capacity of softex kw is 0.6CEC or 1.0CEC, and cationic-type polyacrylamide and intercalation amount are 2% or 4%.
Principle of the present invention is: layered clay mineral such as bentonite often have negative electrical charge, need adsorb inorganic cation at interlayer and realize charge compensation, because the aquation of inorganic cation, the clay mineral surface is a hydrophilic environment, to organic matter affinity extreme difference.Under certain condition, the interlayer inorganic cation can be exchanged by the organic cation molecule, and the product after the exchange promptly is called organobentonite.Cationic surfactant can change bentonitic interlayer environment, and organobentonite is strengthened the organic matter affinity; Because cationic-type polyacrylamide has very long positive charge molecules chain, intercalation can be cross-linked to form network structure with bentonite lamella after between bentonite bed, the organobentonite nanometer lamella of peeling off is firmly linked.
Based on its strong oil-wet and special two-dimensional nanostructure, organobentonite can expand rapidly in organic liquid, peels off into the monolithic layer of nanometer grade thickness, is distributed in the organic liquid, thereby organic liquid is solidified, and the organic liquid that is cured can reach and be several times as much as the organobentonite own wt.Thus, a large amount of organic pollutions of the curable leakage of organobentonite, thus organic pollution to be fixed, held back, the destruction of back organic pollution to surrounding environment takes place in the reduction incident.Simultaneously, utilize the bentonite strong oil-wet, the organic pollution adsorbing and extracting that is penetrated in the soil and is dissolved in the water is come out, can repair contaminated zone to a certain extent.
Extensive, the low price of material source that method of the present invention is related, operation is simple, and processing cost is low, can be used for the pipeline, oil tank, the oil carrier incident of leakage that take place in petroleum storage and the transportation; The various incidents of leakage that take place in the organic production of chemical industry, storage, the transportation; The various sudden organic pollution incidents that take place in the daily life etc.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment.
Embodiment 1: fix with the organobentonite of different cation load capacity and hold back nitrobenzene.
Fixedly holding back nitrobenzene liquid with the organobentonite of softex kw (CTMAB) modification is example: the interception of bentonite original soil p-nitrophenyl is 1.36g/g, and the CTMAB load capacity be respectively 0.6,0.8,1.0,1.2,1.4,1.6,1.8 and the interception of the organobentonite p-nitrophenyl of 2.0CEC be respectively 14.5,22.8,23.7,23.7,23.1,22.5,22.0 and 23.7g/g, interception has improved 10～17 times than bentonite original soil.
Embodiment 2: fix with the organobentonite of load different surfaces activating agent and hold back nitrobenzene.
Fix with the organobentonite of the different cationic surfactants of load that to hold back nitrobenzene liquid be example: selected surfactant is respectively a DTAB, TTAB, softex kw, the octadecyl trimethylammonium bromide, didodecyldimethylammbromide bromide, two octadecyl dimethyl ammonium bromides, the surfactant load capacity is 1.0CEC; The result shows, more than the interception of six kinds of surfactant-modified organobentonite p-nitrophenyls that make be respectively 23.8,19.5,23.7,17.1,12.4 and 9.21g/g, interception has improved about 6～17 times than bentonite original soil.
Embodiment 3: fix with organobentonite and hold back different organic liquids.
With the CTMAB load capacity is that the organobentonite of 2.0CEC fixes that to hold back different organic liquids be example: the bentonite original soil is respectively 0.89,1.36,0.83,0.67 and 0.92g/g to the interception of benzene, nitrobenzene, dimethylbenzene, gasoline and diesel oil, and the CTMAB organobentonite is respectively 15.1,23.7,8.71,6.45 and 8.25g/g to the interception of benzene, nitrobenzene, dimethylbenzene, gasoline and diesel oil, and interception has all improved more than 8 times than bentonite original soil.
Embodiment 4: fix with the CTMAB-CPAM organobentonite and hold back nitrobenzene.
With the CTMAB load capacity is that 0.6CEC and cationic-type polyacrylamide (CPAM) intercalation amount are that 2% organobentonite (CTMAB-CPAM organobentonite) fixes that to hold back nitrobenzene be example: the interception of bentonite original soil p-nitrophenyl is 1.36g/g, the interception of CTMAB organobentonite p-nitrophenyl is 14.5g/g, and the interception of CTMAB-CPAM organobentonite p-nitrophenyl is 18.7g/g, interception has improved 13 times than original soil, has improved 0.3 times than CTMAB organobentonite.
Embodiment 5: the CTMAB-CPAM organobentonite with different surfaces activating agent load capacity is fixedly held back nitrobenzene.
With the CTMAB load capacity is respectively 0.6CEC, 1.0CEC and CPAM intercalation amount is that fixedly to hold back nitrobenzene be example for 4% organobentonite: the interception of bentonite original soil p-nitrophenyl is 1.36g/g, the interception of CTMAB organobentonite p-nitrophenyl is respectively 14.5g/g (0.6CEC) and 23.7g/g (1.0CEC), and the CTMAB load capacity is the interception of the CTMAB-CPAM organobentonite p-nitrophenyl of 0.6CEC and 1.0CEC is respectively 21.5 and 28.9g/g, interception improves 15 times and 20 times than original soil respectively, has improved 0.5 times and 0.22 times than the CTMAB organobentonite of correspondence.
Embodiment 6: fix with the CTMAB-CPAM organobentonite of different CPAM intercalation amounts and hold back nitrobenzene.
With the CTMAB load capacity is that 0.6CEC, CPAM intercalation amount are respectively that fixedly to hold back nitrobenzene be example for 2% and 4% novel organobentonite: the interception of CTMAB organobentonite p-nitrophenyl is 14.5g/g, be respectively 18.7 and 21.5g/g and CPAM intercalation amount is the interception of 2% and 4% organobentonite p-nitrophenyl, improved 0.3 times and 0.5 times than CTMAB organobentonite.
The adsorption capacity of embodiment 7:CTMAB organobentonite in high nitrobenzene waste water.
Be that nitrobenzene is example in the organobentonite adsorbed water of 1.0CEC and 2.0CEC with the CTMAB load capacity: add a small amount of CTMAB organobentonite in water after, the organobentonite adsorbance can reach 715.9 and 534.5mg/g.Organobentonite can not only be held back fixedly nitrobenzene stoste, and can adsorb the nitrobenzene that is dissolved in the water.
Embodiment 8: reclaim organic liquid with centrifugal process.
Reclaim the organic liquid that organobentonite is fixedly held back by centrifugation method.To reclaim through the cation load capacity is that fixing benzene and the nitrobenzene of two octadecyl dimethyl ammonium bromide organobentonites of 1.0CEC is example: two octadecyl dimethyl ammonium bromide organobentonites are respectively 14.3 and 15.2g/g to the interception of benzene and nitrobenzene, centrifugally under the gravity of 80 * g afterwards the interception of benzene and nitrobenzene are respectively 3.56 and 3.44g/g.Centrifugal gravity increases to 80 * g, and the interception of benzene has reduced by 75.1%, can separate and reclaim 10.74g benzene; The interception of nitrobenzene has reduced by 77.4%, can reclaim 11.76g nitrobenzene.
Embodiment 9: reclaim nitrobenzene with the natural subsidence compacting.
Method by the natural subsidence compacting reclaims the organic liquid that organobentonite is fixedly held back.To reclaim the CTMAB load capacity is that 1.0CEC, CPAM intercalation amount are that 2% the fixing nitrobenzene of organobentonite is example: the interception of CTMAB-CPAM organobentonite p-nitrophenyl is 27.2g/g, behind the pressurization stratification sedimentation 60min, the interception of p-nitrophenyl is 14.4g/g, interception has reduced by 47.0%, can reclaim 12.8g nitrobenzene.
Claims (3)
1, a kind of method of sudden organic pollution event handling is characterized in that comprising the step of following order:
(1) with quaternary ammonium salt cationic surfactant and cationic-type polyacrylamide as the ion-exchanged agent, the bentonite original soil is prepared into serial organobentonite powder;
(2) the organobentonite powder directly or with the machine injection is added in the soil or water that is subjected to organic liquid contamination;
(3) organobentonite is fixedly held back organic liquid, simultaneously can adsorbing and extracting soil or water in organic liquid, thereby stop its further diffuse pollution surrounding environment;
(4) organobentonite that will fixedly hold back organic liquid reclaims organic liquid by centrifugal process or natural subsidence compacting, so that utilize again.
2, the method for sudden organic pollution event handling according to claim 1 is characterized in that described quaternary ammonium cation surfactant comprises DTAB, TTAB, softex kw, octadecyl trimethylammonium bromide, didodecyldimethylammbromide bromide, two octadecyl dimethyl ammonium bromide; Described organic liquid comprises benzene, nitrobenzene, dimethylbenzene, gasoline or diesel oil; Wherein, be in the organobentonite of surfactant preparation with the softex kw, the load capacity of softex kw is 0.6,0.8,1.0,1.2,1.4,1.6,1.8 and 2.0CEC; With DTAB, TTAB, octadecyl trimethylammonium bromide, didodecyldimethylammbromide bromide, two octadecyl dimethyl ammonium bromide is that the load capacity of surfactant is 1.0CEC in the organobentonite of surfactant preparation.
3, the method for sudden organic pollution event handling according to claim 1 is characterized in that in the described organobentonite that the ion-exchanged agent can comprise cationic surfactant and cationic-type polyacrylamide simultaneously.Wherein, the load capacity of softex kw is 0.6CEC or 1.0CEC, and cationic-type polyacrylamide and intercalation amount are 2% or 4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101898702A CN101480602A (en) | 2008-12-31 | 2008-12-31 | Method for handling sudden organic pollution event |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101898702A CN101480602A (en) | 2008-12-31 | 2008-12-31 | Method for handling sudden organic pollution event |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101480602A true CN101480602A (en) | 2009-07-15 |
Family
ID=40877981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101898702A Pending CN101480602A (en) | 2008-12-31 | 2008-12-31 | Method for handling sudden organic pollution event |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101480602A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104549134A (en) * | 2014-12-04 | 2015-04-29 | 常州大学 | Method for preparing nitrogen-doped modified bentonite |
| CN104893730A (en) * | 2015-05-14 | 2015-09-09 | 江苏玖力纳米材料科技有限公司 | Petroleum soil adsorption-degradation modified material |
| CN105944281A (en) * | 2016-05-19 | 2016-09-21 | 中国人民武装警察部队学院 | Preparation method and application of decontaminating agent for organic liquid dangerous chemical |
| CN106701096A (en) * | 2016-12-23 | 2017-05-24 | 镇江华域环保设备制造有限公司 | Repairing agent of organic matter polluted soil and application of repairing agent |
| CN107814956A (en) * | 2017-10-16 | 2018-03-20 | 王欣 | A kind of production method of sodium alginate polyvinyl alcohol bentonite slow release fertilizer coating liquid |
| CN108325499A (en) * | 2018-01-23 | 2018-07-27 | 中交铁道设计研究总院有限公司 | A kind of preparation method and application for the sodium bentonite modified as modifying agent using cationic-type polyacrylamide and 4 bromide |
| CN112246216A (en) * | 2020-09-28 | 2021-01-22 | 池秀珠 | Preparation method of modified bentonite applied to antimony-containing wastewater treatment |
-
2008
- 2008-12-31 CN CNA2008101898702A patent/CN101480602A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104549134A (en) * | 2014-12-04 | 2015-04-29 | 常州大学 | Method for preparing nitrogen-doped modified bentonite |
| CN104893730A (en) * | 2015-05-14 | 2015-09-09 | 江苏玖力纳米材料科技有限公司 | Petroleum soil adsorption-degradation modified material |
| CN105944281A (en) * | 2016-05-19 | 2016-09-21 | 中国人民武装警察部队学院 | Preparation method and application of decontaminating agent for organic liquid dangerous chemical |
| CN106701096A (en) * | 2016-12-23 | 2017-05-24 | 镇江华域环保设备制造有限公司 | Repairing agent of organic matter polluted soil and application of repairing agent |
| CN107814956A (en) * | 2017-10-16 | 2018-03-20 | 王欣 | A kind of production method of sodium alginate polyvinyl alcohol bentonite slow release fertilizer coating liquid |
| CN108325499A (en) * | 2018-01-23 | 2018-07-27 | 中交铁道设计研究总院有限公司 | A kind of preparation method and application for the sodium bentonite modified as modifying agent using cationic-type polyacrylamide and 4 bromide |
| CN112246216A (en) * | 2020-09-28 | 2021-01-22 | 池秀珠 | Preparation method of modified bentonite applied to antimony-containing wastewater treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101480602A (en) | Method for handling sudden organic pollution event | |
| Umbreen et al. | Self-assembled three-dimensional reduced graphene oxide-based hydrogel for highly efficient and facile removal of pharmaceutical compounds from aqueous solution | |
| Yu et al. | Boron nitride-based materials for the removal of pollutants from aqueous solutions: a review | |
| Li et al. | Converting untreated waste office paper and chitosan into aerogel adsorbent for the removal of heavy metal ions | |
| Othmani et al. | Biochar and activated carbon derivatives of lignocellulosic fibers towards adsorptive removal of pollutants from aqueous systems: Critical study and future insight | |
| Wang et al. | Shapeable amino-functionalized sodium alginate aerogel for high-performance adsorption of Cr (VI) and Cd (II): Experimental and theoretical investigations | |
| Kwok et al. | Adsorption/desorption of arsenite and arsenate on chitosan and nanochitosan | |
| Shen et al. | Environmental applications of three-dimensional graphene-based macrostructures: adsorption, transformation, and detection | |
| Jia et al. | Amyloid fibril templated MOF aerogels for water purification | |
| Lawal et al. | Brief bibliometric analysis of “ionic liquid” applications and its review as a substitute for common adsorbent modifier for the adsorption of organic pollutants | |
| Huang et al. | Removal of chromium (VI) ions from aqueous solutions with protonated crosslinked chitosan | |
| CN100493694C (en) | Composite absorbing material | |
| Zhang et al. | Adsorption of anionic surfactants from aqueous solution by high content of primary amino crosslinked chitosan microspheres | |
| Hu et al. | Advanced nanoarchitectures of carbon aerogels for multifunctional environmental applications | |
| Tong et al. | Removal of organic pollutants from super heavy oil wastewater by lignite activated coke | |
| Xiao et al. | Biosorption of nonpolar hydrophobic organic compounds to Escherichia coli facilitated by metal and proton surface binding | |
| Bai et al. | Kaolin/CaAlg hydrogel thin membrane with controlled thickness, high mechanical strength, and good repetitive adsorption performance for dyes | |
| Khan et al. | Preparation of sustainable activated carbon-alginate beads impregnated with ionic liquid for phenol decontamination | |
| Yu et al. | Synthesis, characterization and adsorption of cationic dyes by CS/P (AMPS-co-AM) hydrogel initiated by glow-discharge-electrolysis plasma | |
| CN102211795A (en) | Method for regenerating eluant in organic polluted soil eluent | |
| Yi et al. | Metal-organic frameworks on 3D interconnected macroporous sponge foams for large-scale water decontamination: A mini review | |
| Chen et al. | Microwave irradiation assisted preparation of chitosan composite microsphere for dye adsorption | |
| Hu et al. | Adsorption of phenol from aqueous solutions using interlayer modified titanate nanotubes | |
| Das et al. | Catalytic polymer nanocomposites for environmental remediation in wastewater | |
| Song et al. | Efficient biodegradation of azo dyes catalyzed by the anthraquinone-2-sulfonate and reduced graphene oxide nanocomposite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090715 |