CN104030400B - The minimizing technology of brominated flame-retardant pollutant in a kind of water - Google Patents
The minimizing technology of brominated flame-retardant pollutant in a kind of water Download PDFInfo
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- CN104030400B CN104030400B CN201410201063.3A CN201410201063A CN104030400B CN 104030400 B CN104030400 B CN 104030400B CN 201410201063 A CN201410201063 A CN 201410201063A CN 104030400 B CN104030400 B CN 104030400B
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Abstract
The present invention relates to the minimizing technology of brominated flame-retardant pollutant in a kind of water, the method utilizes magnetic ion exchange resin coupled filtering to remove brominated flame-retardant pollutant, specifically using magnetic ion exchange resin with quartz sand (3 5) by volume: (1 2) mix homogeneously as filler, it is seated in ion exchange column, processes the water containing brominated flame-retardant pollutant.Compared with prior art, the present invention has efficiency height, low cost and other advantages.
Description
Technical field
The invention belongs to water-treatment technology field, relate to magnetic ion exchange resin coupling sand to brominated flame-retardant
Removal technology and the design of a set of column adsorbent equipment and operation.
Background technology
Brominated flame-retardant is one of important auxiliary agent of synthesis macromolecular material, be mainly used in plastics, textile, electronics,
In electrical equipment, transportation and packing, building materials and other fire proofing materials.Owing to they have good chemical stability, heat
Stability, inertia and dielectricity, produced widely in many countries and regions and used, therefore being also result in
Surrounding medium and the severe contaminations of relevant ecological system such as air, water body, deposit and soil.Brominated flame-retardant class
Pollutant can build up amplification by all means in human body, and brain and skeleton development to people cause necessarily
Impact, it is also possible to there is carcinogenesis.
Removal for brominated flame-retardant at present is concentrated mainly on biodegradation and physical chemistry two aspects of degraded, water
The common process processed is the least to its removal effect.Magnetic ion exchange resin (magnetic ion exchange
Resin, MIEX) technology is public by Australian Union's science and industrial research institute, Nan'ao Bureau of Water Resources and Orica
Department's joint development, is mainly used in Water pretreatrnent.Magnetic ion exchange resin can effectively reduce dissolubility in water to be had
Micropollutants such as including insecticide, naturally occurring or synthetic artificial hormone and activity pharmacology product are had by machine thing content
Efficient removal.Magnetic ion exchange resin is compared with the filtering material that other are traditional, in removal effect and economy
On all have a clear superiority in, it is often more important that, MIEX separate and reproduction ratio be easier to, the regeneration of resin be one take off
Attached process, is mainly replaced DOC by the sodium chloride solution that mass fraction is 10% from resins exchange site
Get off.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and bromo resistance in a kind of water is provided
The minimizing technology of combustion agent pollutant.
The purpose of the present invention can be achieved through the following technical solutions: brominated flame-retardant pollutant in a kind of water
Minimizing technology, it is characterised in that the method utilizes magnetic ion exchange resin coupled filtering to remove brominated flame-retardant class
Pollutant, specifically magnetic ion exchange resin and quartz sand (3-5) by volume: (1-2) is mixed homogeneously as
Filler, is seated in ion exchange column, processes the water containing brominated flame-retardant pollutant.
Described ion exchange column is lucite post, filling magnetic ion exchange resin and the mixed fillers of quartz sand
After, the microporous membrane arranging 40-60 μm bottom filler with top prevents filler to run off.
The a diameter of 4-5cm of described ion exchange column, a length of 30-40cm.
Described ion exchange column before processing the water containing brominated flame-retardant pollutant, advanced deionization water transport
Row 3-4h, flow velocity is 5-7ml/min, by filler wash clean.
The described water containing brominated flame-retardant pollutant that processes is to make its flow speed control at 3-4ml/min, enters
Ion exchange column swaps process.
The described water containing brominated flame-retardant pollutant after treatment on ion exchange columns by high performance liquid chromatography and
The concentration of mass Spectrometry for Determination water outlet brominated flame-retardant.
Described ion exchange column pH=9-11 in the basic conditions regenerates, and regenerative agent employing mass fraction is
The sodium chloride solution of 10-15%, every liter of magnetic ion exchange resin regeneration need to consume sodium chloride 100～120g, regeneration
Agent can repeatedly utilize.
Compared with prior art, the invention have the advantages that
(1) present invention uses the coupled filtering technology of magnetic ion exchange resin and sand, can save tree
The pressure demand during operation of the consumption of fat itself and whole device, improves the fluidised form of filter process.
(2) present invention selects ion exchange resin as mainly removing material, and brominated flame-retardant is gone by itself
Except rate is the highest, can be greatly improved the efficiency of whole device, more traditional material of removing has the spy of high-efficiency and economic
Point.
Accompanying drawing explanation
Fig. 1 is the SEM picture of magnetic ion exchange resin；
Fig. 2 is to process the device schematic diagram of brominated flame-retardant pollutant in water；
Fig. 3 is that the present invention is to the dynamic removal effect figure of tetrabromobisphenol-A and the fitting result of different model；
Fig. 4 is that the present invention is to the dynamic removal effect figure of pentabromo-Biphenyl Ether and the fitting result of different model；
Fig. 5 is that the present invention is to the dynamic removal effect figure of decabromodiphenyl oxide and the fitting result of different model.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
The device that in following embodiment, in water, the minimizing technology of brominated flame-retardant pollutant uses, as in figure 2 it is shown,
Including ion exchange column 1, vacuum pump 2, control valve 3, water sample bottle 4, regeneration bottle 5, water outlet water sample catcher 6,
Described ion exchange column 1 includes the lucite post of a diameter of 4-5cm, a length of 30-40cm, inserts
Material, filler is quartz sand thick for 5-10cm and the magnetic ion exchange resin (as shown in Figure 1) of 15-25cm thickness,
It is sufficiently mixed before refilling pillar, has the microporous membrane of 40-60 μm to prevent filler stream with top bottom filler
Lose；Ion exchange column 1 top connects water sample bottle 4 and regeneration bottle 5, water sample bottle 4 and regeneration bottle respectively by pipeline
Being provided with between 5 and ion exchange column 1 and control the control valve 3 of sample introduction and vacuum pump 2, vacuum pump 2 selects the lift to be
The vacuum pump of 6-10m, goes out liquid and connects water outlet water sample catcher 6 bottom ion exchange column 1.
Embodiment 1
(1) a diameter of 5cm is selected, the lucite post of a length of 40cm, insert filler, filler is 10cm
Thick quartz sand and the magnetic ion exchange resin of 20cm thickness, be sufficiently mixed before refilling pillar, at the bottom of filler
Portion and top have the microporous membrane of 50 μm to prevent filler to run off, and water pump selects lift to be the vacuum pump of 8m；
(2) before water inlet sample, advanced deionized water runs 3.5h, and flow velocity is 5ml/min, it is therefore an objective to filling out
Material wash clean；
(3) water inlet water sample contains the tetrabromobisphenol-A of 3.0mg/L, whole device flow speed control at 3.2ml/min,
Water outlet water sample 50ml centrifuge tube is collected, with high performance liquid chromatography and mass Spectrometry for Determination water outlet tetrabromobisphenol
The concentration of-A；
(4) in the basic conditions (pH=9-11) regenerates, and regenerative agent uses mass fraction to be the chlorine of 10%
Change sodium solution.
Result shows, through the former water containing tetrabromobisphenol A of this device, can remove this pollutant well,
As it is shown on figure 3, plant running is within 5 hours, water outlet tetrabromobisphenol A clearance all reaches more than 90%.
After plant running 5 hours, add sodium chloride solution and the resin in pillar is regenerated, right after finding resin regeneration
Tetrabromobisphenol A still has removal effect well.
Embodiment 2
(1) a diameter of 5cm is selected, the lucite post of a length of 40cm, insert filler, filler is 10cm
Thick quartz sand and the magnetic ion exchange resin of 20cm thickness, be sufficiently mixed before refilling pillar, at the bottom of filler
Portion and top have the microporous membrane of 50 μm to prevent filler to run off, and water pump selects lift to be the vacuum pump of 8m；
(2) before water inlet sample, advanced deionized water runs 3.5h, and flow velocity is 5ml/min, it is therefore an objective to filling out
Material wash clean；
(3) water inlet water sample contains the pentabromo-Biphenyl Ether of 1.0mg/L, whole device flow speed control at 2.2ml/min,
Water outlet water sample 50ml centrifuge tube is collected, with high performance liquid chromatography and mass Spectrometry for Determination water outlet tetrabromobisphenol
The concentration of-A；
(4) in the basic conditions (pH=9-11) regenerates, and regenerative agent uses mass fraction to be the chlorine of 10%
Change sodium solution.
Result shows, through the former water containing pentabromo-Biphenyl Ether of this device, can remove this pollutant well,
As shown in Figure 4, plant running is within 4 hours, and water outlet tetrabromobisphenol A clearance all reaches more than 90%.
After plant running 4 hours, add sodium chloride solution and the resin in pillar is regenerated, right after finding resin regeneration
Pentabromo-Biphenyl Ether still has removal effect well.
Embodiment 3
(1) a diameter of 5cm is selected, the lucite post of a length of 40cm, insert filler, filler is 10cm
Thick quartz sand and the magnetic ion exchange resin of 20cm thickness, be sufficiently mixed before refilling pillar, at the bottom of filler
Portion and top have the microporous membrane of 50 μm to prevent filler to run off, and water pump selects lift to be the vacuum pump of 8m；
(2) before water inlet sample, advanced deionized water runs 3.5h, and flow velocity is 5ml/min, it is therefore an objective to filling out
Material wash clean；
(3) water inlet water sample contains the decabromodiphenyl oxide of 1.0mg/L, whole device flow speed control at 2.0ml/min,
Water outlet water sample 50ml centrifuge tube is collected, with high performance liquid chromatography and mass Spectrometry for Determination water outlet tetrabromobisphenol
The concentration of-A；
(4) in the basic conditions (pH=9-11) regenerates, and regenerative agent uses mass fraction to be the chlorine of 10%
Change sodium solution.
Result shows, through the former water containing decabromodiphenyl oxide of this device, can remove this pollutant well,
As it is shown in figure 5, plant running is within 6 hours, water outlet decabromodiphenyl oxide clearance all reaches more than 90%.
After plant running 6 hours, add sodium chloride solution and the resin in pillar is regenerated, right after finding resin regeneration
Tetrabromobisphenol A still has removal effect well.
The above-mentioned description to embodiment is to be understood that and apply this for ease of those skilled in the art
Invention.These embodiments obviously easily can be made various amendment by person skilled in the art, and handle exists
The General Principle of this explanation is applied in other embodiments without through performing creative labour.Therefore, the present invention is not
Being limited to embodiment here, those skilled in the art, according to the announcement of the present invention, are made without departing from scope
Improvement and amendment all should be within protection scope of the present invention.
Claims (6)
1. the minimizing technology of brominated flame-retardant pollutant in a water, it is characterised in that the method utilizes magnetic
Ion exchange resin coupled filtering removes brominated flame-retardant pollutant, specifically by magnetic ion exchange resin and quartz
Sand (3-5) by volume: (1-2) mix homogeneously, as filler, is seated in ion exchange column, processes containing bromine
Water for flame-retardant pollutants；
The described water containing brominated flame-retardant pollutant that processes is to make its flow speed control at 3-4ml/min, enters
Ion exchange column swaps process.
The minimizing technology of brominated flame-retardant pollutant, its feature in a kind of water the most according to claim 1
Being, described ion exchange column is lucite post, and the mixing of filling magnetic ion exchange resin and quartz sand is filled out
After material, the microporous membrane arranging 40-60 μm bottom filler with top prevents filler to run off.
The minimizing technology of brominated flame-retardant pollutant, its feature in a kind of water the most according to claim 1
It is, a diameter of 4-5cm of described ion exchange column, a length of 30-40cm.
The minimizing technology of brominated flame-retardant pollutant, its feature in a kind of water the most according to claim 1
Be, described ion exchange column before processing the water containing brominated flame-retardant pollutant, advanced deionized water
Running 3-4h, flow velocity is 5-7ml/min, by filler wash clean.
The minimizing technology of brominated flame-retardant pollutant, its feature in a kind of water the most according to claim 1
Be, the described water containing brominated flame-retardant pollutant after treatment on ion exchange columns by high performance liquid chromatography and
The concentration of mass Spectrometry for Determination water outlet brominated flame-retardant.
The minimizing technology of brominated flame-retardant pollutant, its feature in a kind of water the most according to claim 1
Being, described ion exchange column pH=9-11 in the basic conditions regenerates, and regenerative agent uses mass fraction
For the sodium chloride solution of 10-15%, every liter of magnetic ion exchange resin regeneration need to consume sodium chloride 100～120g, then
Raw agent repeatedly utilizes.
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| CN104193064B (en) * | 2014-09-16 | 2016-03-09 | 天津长芦汉沽盐场有限责任公司 | Produce the treatment process of acid washing water and neutralized wastewater in tetrabromo-bisphenol process |
| CN111362497B (en) * | 2020-03-20 | 2021-07-16 | 同济大学 | Method for treating brominated disinfection by-product precursor by combining magnetic ion exchange resin with nanofiltration |
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| CN101905931A (en) * | 2010-02-11 | 2010-12-08 | 南京大学 | Advanced treating method of biochemical tail water based on magnetic resin |
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| CN102795736A (en) * | 2011-05-25 | 2012-11-28 | 四川环能德美科技股份有限公司 | Deep treatment method for anion exchange resin regeneration waste solution |
| WO2013173880A1 (en) * | 2012-05-25 | 2013-11-28 | Orica Australia Pty Ltd | Water treatment process |
| CN103771645A (en) * | 2014-01-24 | 2014-05-07 | 太平洋水处理工程有限公司 | High-efficiency compact coupling type water treatment device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101721977B (en) * | 2008-10-15 | 2011-12-21 | 中国科学院生态环境研究中心 | Palladium loaded chelate resin and preparation method thereof |
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Patent Citations (5)
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|---|---|---|---|---|
| CN101905931A (en) * | 2010-02-11 | 2010-12-08 | 南京大学 | Advanced treating method of biochemical tail water based on magnetic resin |
| CN102795736A (en) * | 2011-05-25 | 2012-11-28 | 四川环能德美科技股份有限公司 | Deep treatment method for anion exchange resin regeneration waste solution |
| CN202482099U (en) * | 2012-02-22 | 2012-10-10 | 四川环能德美科技股份有限公司 | Magnetic resin adsorption reactor |
| WO2013173880A1 (en) * | 2012-05-25 | 2013-11-28 | Orica Australia Pty Ltd | Water treatment process |
| CN103771645A (en) * | 2014-01-24 | 2014-05-07 | 太平洋水处理工程有限公司 | High-efficiency compact coupling type water treatment device and method |
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