CN103215141B - Radionuclide biomass foam decontaminant capable of completely defoaming and use method thereof - Google Patents
Radionuclide biomass foam decontaminant capable of completely defoaming and use method thereof Download PDFInfo
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- CN103215141B CN103215141B CN201310135267.7A CN201310135267A CN103215141B CN 103215141 B CN103215141 B CN 103215141B CN 201310135267 A CN201310135267 A CN 201310135267A CN 103215141 B CN103215141 B CN 103215141B
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Abstract
The invention discloses a radionuclide biomass foam decontaminant capable of completely defoaming and a use method thereof. The radionuclide biomass foam decontaminant is obtained by respectively mixing sodium lauroyl sarcosine, preservatives, solubilizers, foam stabilizers and moisture at a mass ratio of 0.2%-1%:0.1%-0.5%:0.5%-7%:0.01%-1%:90.5%-99.3% and stirring at high speed. The radionuclide biomass foam decontaminant disclosed by the invention can be used for removing the contaminants positioned on a solid surface in a foam way, saving the labor power, achieving the short decontamination time of only 1-5 minutes and removing the dirt positioned at a dead angle which is difficult to contact; compared with the traditional decontamination, the radionuclide biomass foam decontaminant disclosed by the invention greatly reduces the amount of waste liquor and realizes that the amount of the waste liquor accounts for 10% of pickling; and the radionuclide biomass foam decontaminant is simple in process and low in cost and achieves the removal ratio of nuclide contaminants at 80%-90%.
Description
Technical field
The invention belongs to the nucleic processing of cleaning decontamination field, be specifically related to a kind of radioactive nuleus cellulosic biomass foam stain remover and using method thereof of froth breaking completely, utilize sodium lauroyl sareosine tensio-active agent and multiple additive compound to develop the forever foam stain remover of the high clearance of froth breaking.Be specially adapted to the Sr of solid surface
2+, Th
4+deng decontamination of nucleic etc.
Background technology
Traditional solid surface decontamination method mainly contains chemical subtraction, the method that mechanical decontamination and chemical machinery decontamination combine.Though above decontamination method can effectively be removed the dirt of solid surface, can produce a large amount of waste liquids, not only increase subsequent treatment cost and also can cause secondary pollution.The method of foam decontamination can reduce waste liquid amount greatly, the short circuit of avoiding traditional decontamination method to make in a large number water cause precision instrument, the harm such as corrosion.
Existing foam stain remover detersive efficiency is on the low side, after decontamination, be difficult to can produce again a large amount of foams through certain stirring and air-blowing after froth breaking or the removal of foam, cause the liquid waste disposal of the follow-up nucleic such as evaporation, ion-exchange to be difficult to carry out, therefore a kind of froth breaking completely has the research and development of biomass foam stain remover of high soil removal efficiency significant to nucleic.So-called froth breaking completely makes after lather collapse by certain method, then by solution stir, the foaming means solution such as bubbling no longer includes foam generation.
Summary of the invention
Object of the present invention is intended to overcome deficiency of the prior art, and a kind of preparation method of radioactive nuleus cellulosic biomass foam stain remover of froth breaking is completely provided.Realize using biological material sarkosine as raw material, solve existing foam stain remover foam after decontamination and be difficult to elimination, the reluctant problem of waste liquid.
Content of the present invention is: a kind of radioactive nuleus cellulosic biomass foam stain remover of froth breaking completely: sodium lauroyl sareosine, sanitas, solubilizing agent, suds-stabilizing agent, water are mixed by 0.2%～1%, 0.1%～0.5%, 0.5%～7%, 0.01%～1% and 90.5%～99.3% mass ratio respectively, and high-speed stirring obtains foam stain remover.
Described sanitas can be one of sodium carbonate, organic amine, acid amides, Sodium Benzoate.
Described solubilizing agent can be one of ethanol, toluene, xylenesulfonate.
Described suds-stabilizing agent can be Xylo-Mucine or konjak glucomannan.
The using method of described stain remover: foam stain remover is sprayed in by radionuclide contamination surface, leave standstill 1～5min, with air-blast device, foam stain remover is removed, be collected in waste liquid barrel.The hydrochloric acid of 0.1～0.3mol/l is sprayed in the foam stain remover in waste liquid barrel, leaves standstill at normal temperatures 10-60s and treat lather collapse.Described hydrochloric acid can change makes sulfuric acid, nitric acid.
Compared with prior art, the present invention has following feature and beneficial effect:
(1) in the present invention, as whipping agent, there is precipitation in anion surfactant sodium lauroyl sareosine under certain pH conditions, and sodium lauroyl sareosine is generated water-fast Sarkosyl L by acidifying.Solving after foam decontamination a large amount of foams exists concentrated or other treatment process of lower follow-up waste liquid evaporation to be difficult to the problem of carrying out.There is larger practical value and wide application prospect;
(2) in the present invention, sodium lauroyl sareosine, complexing agent, sanitas, solubilizing agent, suds-stabilizing agent, be respectively 0.2%～1%, 0.1%～1%, 0.1%～0.5%, 0.5%～7%, 0.01%～1%, material usage is few, corrosion-free to solid surface.Hydrochloric acid is as defoamer, and raw material is easy to get, simple to operate.
(3) in the present invention, remove the pollutent of solid surface with form of foam, save manpower, the decontamination time is fast, and only 1-5min also can remove the dirt at the dead angle that is difficult for contact.Reduced greatly waste liquid amount with respect to traditional decontamination, waste liquid amount is pickling 10%.
(4) in the present invention, the implementation method of stain remover is mechanical stirring foaming, watering can spray foam, easy to operate, avoided directly contacting with human body, this formula all has removal effect to multiple pollutant, then utilizes air-blast device or mechanical vibration absorption to be had to the foam recovery of metal nucleic, spread by hand defoamer froth breaking completes decontamination froth breaking process, this invented technology is simple, with low cost, and nucleic pollutants removal rate reaches 80%-90%.
Brief description of the drawings
Fig. 1 is the infared spectrum of tensio-active agent sodium lauroyl sareosine in the present invention;
Fig. 2 is the clean effect figure of the embodiment of the present invention to Sr;
Fig. 3 is the clean effect figure of the embodiment of the present invention to U;
Fig. 4 is the surface contrast figure of (a) rear (b) before embodiment of the present invention decontamination;
Fig. 5 is the transmittance of sodium lauroyl sareosine after by acidifying;
Fig. 6 sodium lauroyl sareosine micelle-forming concentration figure.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
With reference to figure 1, Fig. 5, Fig. 6, Fig. 1 is the infared spectrum of tensio-active agent sodium lauroyl sareosine in the present invention: as seen from the figure at 1706.5cm
-1there is allusion quotation acid amides C=O stretching vibration; At 3321.8cm
-1and 1539.5cm
-1occur that acid amides N-H is flexible, formation vibration; At 1384.5cm
-1there is C-N stretching vibration; At 1645.5cm
-1qiang Fengwei-COONa stretching vibration.
Fig. 5 is the transmittance of sodium lauroyl sareosine after by acidifying; The sodium N-lauroyl sarcosinate solution that preparation mass ratio is 0.2%, regulates different PH to measure the variation of its transmittance.Be can be observed along with its transmittance of reduction of PH reduces gradually by Fig. 5, in the time that PH drops to 5.05, its transmitance reaches and drops to 0, and this is because sodium lauroyl sareosine and hydrochloric acid reaction generate water-fast Sarkosyl L.As can be seen from the figure do not become and clarify that bright sodium lauroyl sareosine does not have iso-electric point along with the continuation of PH reduces solution.But it can be generated water-fast Sarkosyl L by acidifying and generate white precipitate.
Along with the increase of sodium lauroyl sareosine concentration, surface tension reduces gradually as seen from Figure 6.In the time that concentration is increased to 0.003mol/l, surface tension drops to minimum.While continuing to increase concentration, surface tension increases on the contrary.So the concentration that is not tensio-active agent in the process of foaming is more high better, it is that mass ratio is in the scope of 0.03%-0.2% that its suitableeest concentration should be controlled at 0.001-0.007mol/l.
Embodiment 1:
Tensio-active agent sodium lauroyl sareosine, sanitas sodium carbonate, solubilizing agent ethanol, suds-stabilizing agent Xylo-Mucine, water mix and obtain foam detergent solution according to the mass ratio of 0.2:0.5:1:2:98.1.
Obtained solution is obtained under high-speed stirring to stable foam, bubble jet is applied to contaminated surface with watering can, leave standstill 1～5min, foam is blown into and in waste liquid barrel, treats subsequent disposal with air blast blowing device.
Preparation 0.5mol/l hydrochloric acid is sprayed in waste liquid barrel as defoamer, has non-foam to produce until lather collapse is observed waste liquid under high-speed stirring.The clearance of the strontium of this formula to different concns is shown in Fig. 2.
Embodiment 2:
Sodium lauroyl sareosine, sodium carbonate, ethanol, konjak glucomannan, water mix and obtain foam detergent solution according to the mass ratio of 0.4:0.5:1:0.1:98.
Obtained solution is obtained under high-speed stirring to stable foam, bubble jet is applied to contaminated surface with watering can, leave standstill 1～5min, foam is blown into and in waste liquid barrel, treats subsequent disposal with air blast blowing device.
The hydrochloric acid of preparation 0.5mol/l is sprayed in waste liquid barrel as defoamer, until lather collapse, observe waste liquid has non-foam to produce under high-speed stirring.The clearance of the uranium of this formula to different concns is shown in Fig. 3.
Embodiment 3:
Sodium lauroyl sareosine, sodium carbonate, ethanol, Xylo-Mucine, water mix and obtain foam detergent solution according to the mass ratio of 0.6:0.5:1:0.1:97.8.
Obtained solution is obtained under high-speed stirring to stable foam, bubble jet is applied to contaminated surface with watering can, leave standstill 1～5min, foam is blown into and in waste liquid barrel, treats subsequent disposal with air blast blowing device.
The hydrochloric acid of preparation 0.5mol/l is sprayed in waste liquid barrel as defoamer, until lather collapse, observe waste liquid has non-foam to produce under high-speed stirring.
Embodiment 4:
Sodium lauroyl sareosine, sodium carbonate, ethanol, konjak glucomannan, water mix and obtain foam detergent solution according to the mass ratio of 0.8:0.5:1:0.05:97.65.
Obtained solution is obtained under high-speed stirring to stable foam, bubble jet is applied to contaminated surface with watering can, leave standstill 1～5min, foam is blown into and in waste liquid barrel, treats subsequent disposal with air blast blowing device.
The hydrochloric acid of preparation 0.3mol/l is sprayed in waste liquid barrel as defoamer, until lather collapse, observe waste liquid has non-foam to produce under high-speed stirring.
Embodiment 5:
Sodium lauroyl sareosine, sodium carbonate, ethanol, konjak glucomannan, EDTA, water mix and obtain foam detergent solution according to the mass ratio of 1:0.5:1:0.05:0.5:96.95.
Obtained solution is obtained under high-speed stirring to stable foam, bubble jet is applied to contaminated surface with watering can, leave standstill 1～5min, foam is blown into and in waste liquid barrel, treats subsequent disposal with air blast blowing device.
The hydrochloric acid of preparation 1mol/l is sprayed in waste liquid barrel as defoamer, until lather collapse, observe waste liquid has non-foam to produce under high-speed stirring.
Embodiment 6:
Sodium lauroyl sareosine, sodium carbonate, ethanol, konjak glucomannan, EDTA, water mix and obtain foam detergent solution according to the mass ratio of 0.2:0.5:1:0.01:0.1:98.59.Before and after its decontamination, Fig. 4 is shown in contrast.
Obtained solution is obtained under high-speed stirring to stable foam, bubble jet is applied to contaminated surface with watering can, leave standstill 1～5min, foam is blown into and in waste liquid barrel, treats subsequent disposal with air blast blowing device.
The hydrochloric acid of preparation 1mol/l is sprayed in waste liquid barrel as defoamer, until lather collapse, observe waste liquid has non-foam to produce under high-speed stirring.
Embodiment 7:
Sodium lauroyl sareosine, sodium carbonate, ethanol, konjak glucomannan, EDTA, water mix and obtain foam detergent solution according to the mass ratio of 0.2:0.1:7:0.01:0.1:92.59.
Obtained solution is obtained under high-speed stirring to stable foam, bubble jet is applied to contaminated surface with watering can, leave standstill 1～5min, foam is blown into and in waste liquid barrel, treats subsequent disposal with air blast blowing device.
The hydrochloric acid of preparation 3mol/l is sprayed in waste liquid barrel as defoamer, until lather collapse, observe waste liquid has non-foam to produce under high-speed stirring.
Embodiment 8:
Sodium lauroyl sareosine, sodium carbonate, ethanol, konjak glucomannan, EDTA, water mix and obtain foam detergent solution according to the mass ratio of 1:0.5:2:0.05:0.5:95.95.
Obtained solution is obtained under high-speed stirring to stable foam, bubble jet is applied to contaminated surface with watering can, leave standstill 1～5min, foam is blown into and in waste liquid barrel, treats subsequent disposal with air blast blowing device.
The hydrochloric acid of preparation 2mol/l is sprayed in waste liquid barrel as defoamer, until lather collapse, observe waste liquid has non-foam to produce under high-speed stirring.
Foam height after the different embodiment froth breakings of table 1
Embodiment 1-4 does not add complexing agent EDTA, completely froth breaking.The complexing agent that embodiment 5,8 adds is too much, and foam fails thoroughly to eliminate, and as seen decontamination is had relatively high expectations, and allowing under the decontamination condition of micro-foam is can the complexing agent EDTA of additional proportion below 0.1%.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (3)
1. a radioactive nuleus cellulosic biomass foam stain remover for froth breaking completely, is characterized in that,
Prepare according to following arbitrary formula:
Tensio-active agent sodium lauroyl sareosine, sanitas sodium carbonate, solubilizing agent ethanol, suds-stabilizing agent Xylo-Mucine, water mix according to the mass ratio of 0.2:0.5:1:2:98.1, and high-speed stirring obtains;
Sodium lauroyl sareosine, sodium carbonate, ethanol, konjak glucomannan, water mix according to the mass ratio of 0.4:0.5:1:0.1:98, and high-speed stirring obtains;
Sodium lauroyl sareosine, sodium carbonate, ethanol, Xylo-Mucine, water mix according to the mass ratio of 0.6:0.5:1:0.1:97.8, and high-speed stirring obtains;
Sodium lauroyl sareosine, sodium carbonate, ethanol, konjak glucomannan, water mix according to the mass ratio of 0.8:0.5:1:0.05:97.65, and high-speed stirring obtains.
2. the using method of foam stain remover claimed in claim 1, is characterized in that, foam stain remover is sprayed in by radionuclide contamination surface, leaves standstill 1～5min, with air-blast device, foam stain remover is removed, and is collected in waste liquid barrel; The hydrochloric acid of 0.1～0.3mol/l is sprayed in the foam stain remover in waste liquid barrel, leaves standstill at normal temperatures 10-60s and treat lather collapse.
3. the using method of foam stain remover claimed in claim 2, is characterized in that, described hydrochloric acid changes makes sulfuric acid or nitric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310135267.7A CN103215141B (en) | 2013-04-18 | 2013-04-18 | Radionuclide biomass foam decontaminant capable of completely defoaming and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310135267.7A CN103215141B (en) | 2013-04-18 | 2013-04-18 | Radionuclide biomass foam decontaminant capable of completely defoaming and use method thereof |
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| CN103215141B true CN103215141B (en) | 2014-10-29 |
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| CN108085158B (en) * | 2017-11-28 | 2020-08-07 | 森科（南京）医药技术有限公司 | Peelable radionuclide decontaminant and preparation and use methods thereof |
| CN111100767A (en) * | 2019-12-26 | 2020-05-05 | 郑州华核新材料科技有限公司 | Nuclear power flexible hoisting belt detergent as well as preparation method and application thereof |
| CN111269761B (en) * | 2020-02-13 | 2021-04-27 | 金丝甲(上海)安全防范技术有限公司 | Decontamination liquid and application thereof in decontamination of actinide nuclide and transition metal nuclide pollution |
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| FR2827610B1 (en) * | 2001-07-17 | 2005-09-02 | Commissariat Energie Atomique | DEGREASING COMPOSITION USEFUL FOR DEGREASING AND / OR DECONTAMINATING SOLID SURFACES |
| FR2841802B1 (en) * | 2002-07-08 | 2005-03-04 | Commissariat Energie Atomique | COMPOSITION, FOAM AND METHOD FOR DECONTAMINATING SURFACES |
| US7166758B2 (en) * | 2005-03-26 | 2007-01-23 | Luis Nunez | Foam and gel methods for the decontamination of metallic surfaces |
| CN102899206B (en) * | 2012-11-14 | 2014-07-09 | 西南科技大学 | Preparation and use method of radionuclide decontaminant |
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