CN109019760A - A method of utilizing effective UV/sodium sulfite photo-reduction system degradation 2,4- dibromophenol - Google Patents
A method of utilizing effective UV/sodium sulfite photo-reduction system degradation 2,4- dibromophenol Download PDFInfo
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- CN109019760A CN109019760A CN201810710728.1A CN201810710728A CN109019760A CN 109019760 A CN109019760 A CN 109019760A CN 201810710728 A CN201810710728 A CN 201810710728A CN 109019760 A CN109019760 A CN 109019760A
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- dibromophenol
- degradation
- sodium sulfite
- photo
- solution
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- FAXWFCTVSHEODL-UHFFFAOYSA-N 2,4-dibromophenol Chemical compound OC1=CC=C(Br)C=C1Br FAXWFCTVSHEODL-UHFFFAOYSA-N 0.000 title claims abstract description 99
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 title claims abstract description 88
- 230000015556 catabolic process Effects 0.000 title claims abstract description 55
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 55
- 235000010265 sodium sulphite Nutrition 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000007540 photo-reduction reaction Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000005286 illumination Methods 0.000 abstract description 26
- 230000000694 effects Effects 0.000 abstract description 25
- 239000003344 environmental pollutant Substances 0.000 abstract description 12
- 231100000719 pollutant Toxicity 0.000 abstract description 12
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000006722 reduction reaction Methods 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 3
- 239000000356 contaminant Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 34
- 239000002957 persistent organic pollutant Substances 0.000 description 19
- 150000002989 phenols Chemical class 0.000 description 14
- 238000007254 oxidation reaction Methods 0.000 description 13
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 229940006460 bromide ion Drugs 0.000 description 10
- 239000005416 organic matter Substances 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 9
- 230000001699 photocatalysis Effects 0.000 description 8
- 239000012528 membrane Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000007800 oxidant agent Substances 0.000 description 6
- 238000007146 photocatalysis Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000010453 quartz Substances 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 239000003708 ampul Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 230000000593 degrading effect Effects 0.000 description 4
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 4
- 238000004128 high performance liquid chromatography Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000000701 coagulant Substances 0.000 description 3
- 238000006056 electrooxidation reaction Methods 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 230000033116 oxidation-reduction process Effects 0.000 description 3
- 238000010525 oxidative degradation reaction Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- FNAKEOXYWBWIRT-UHFFFAOYSA-N 2,3-dibromophenol Chemical compound OC1=CC=CC(Br)=C1Br FNAKEOXYWBWIRT-UHFFFAOYSA-N 0.000 description 2
- 239000004155 Chlorine dioxide Substances 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 235000019398 chlorine dioxide Nutrition 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910021642 ultra pure water Inorganic materials 0.000 description 2
- 239000012498 ultrapure water Substances 0.000 description 2
- 238000000825 ultraviolet detection Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- JSRLURSZEMLAFO-UHFFFAOYSA-N 1,3-dibromobenzene Chemical class BrC1=CC=CC(Br)=C1 JSRLURSZEMLAFO-UHFFFAOYSA-N 0.000 description 1
- FEWUXLQOPBBGPY-UHFFFAOYSA-N C1(=CC=CC=C1)O.BrC1=CC=CC(=C1)Br Chemical compound C1(=CC=CC=C1)O.BrC1=CC=CC(=C1)Br FEWUXLQOPBBGPY-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical class ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- -1 hydroxyl radical free radical Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- CSJDCSCTVDEHRN-UHFFFAOYSA-N methane;molecular oxygen Chemical compound C.O=O CSJDCSCTVDEHRN-UHFFFAOYSA-N 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 235000003784 poor nutrition Nutrition 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- FDRCDNZGSXJAFP-UHFFFAOYSA-M sodium chloroacetate Chemical compound [Na+].[O-]C(=O)CCl FDRCDNZGSXJAFP-UHFFFAOYSA-M 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- 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
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- 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
- C02F2101/36—Organic compounds containing halogen
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a kind of using effective UV/sodium sulfite photo-reduction system degradation 2,4- dibromophenol method, is containing 2, in the water of 4- dibromophenol, 0 ~ 5mmol/L sodium sulfite is added, controls pH value of solution=6-12, it carries out 500w ultraviolet lighting and reacts 2min or more, realize degradation 2,4- dibromophenol.The present invention uses advanced reduction technique degradation 2,4- dibromophenol pollutant, experiments have shown that: 1) pollutant degradation effect under the direct illumination of effective UV light increases with the increase of light application time.2) when the concentration of sodium sulfite is 5mmol/L 2, the degradation effect of 4- dibromophenol is best.3) pH value on contaminant degradation have it is certain influence but simultaneously less, control is below 10 as far as possible.
Description
Technical field
The invention belongs to 2,4- dibromophenol degradation technique fields, and in particular to a kind of to utilize effective UV/sulfurous acid sodium light
The method of reduction system degradation 2,4- dibromophenol.
Background technique
Halogenated phenol organic matter is one of the important pollutant in water environment, on the one hand, because halogenated phenol organic matter exists
The relative stability of significance level and its molecule in each link of industrial and agricultural production, this type organic will be in the period of very long
The interior influence that duration is caused to water environment.On the other hand, halogenated phenol organic matter cannot be neglected environment and human health
Harmfulness be it is undeniable, domestic and international related fields for its degradation and processing technique research work also constantly deeply.
This kind of research is significant for control water pollution and improvement water environment.
Halogenated phenols organic contamination and other organic pollutants are existing similar and have any different in water.Firstly, halogenated phenols has
The content of machine pollutant in water is generally relatively low, so that general conventional water treatment technology can not be removed effectively, needs
Wanting some more efficient water treatment technologies to degrade, these have pollutant.Secondly, halogenated phenol organic matter is due to self structure
The reason of keep its solubility in water very low, be easy through food chain enrichment, and be difficult to through microbial degradation method handle
It removes from environment and comes out.Currently, the removal of organic pollutants is all main by advanced treatment process main method
There are physico-chemical process, chemical oxidation and biological treatment etc..
Physico-chemical process is usually to pass through the method for phase transfer to remove organic pollutant from water environment and come out, and is mainly contained
Absorption method, coagulant sedimentation and membrane separation technique etc..Activated carbon adsorption is using earliest, the most wide clean water treatment skill of purposes
Art.Active carbon has very big absorption regeneration ability, can be used for the Adsorption of the halogenated phenol organic matter of high concentration.Because
Active carbon can adsorb the gas chromatography in water well, domestic that active carbon removal organic pollutants have been made
A large amount of research, research find to show that organic pollutants can be effectively removed using Powdered Activated Carbon.Meanwhile activity
The effect that charcoal removes organic pollutants is related with input amount, that is, removal effect is improved with the increase of dosage.But
It is the higher cost and there are problems with disposition after absorption that activated carbon adsorption needs, and the removal efficiency of active carbon is not
It is very high, it is lower especially for the removal rate of the less organic pollutant of content in water.
A kind of coagulant sedimentation also water treatment technology being in daily use.By to organic pollutant be added coagulant into
Row flocculation sedimentation is thus by organic pollutant removal.The equipment that flocculent precipitation needs is fairly simple, and expense is relatively low, usually
The removal of organic matter for oil emulsion, but it is unsatisfactory for the removal effect of halogenated phenols organic pollutant.
Membrane separation technique is a kind of using physical principle, is under the impetus of certain pressure difference, raw material selectivity is led to
A kind of solid phase separation process of selective semi-permeable membrane is crossed, and achievees the purpose that separating-purifying.Membrane separation technique has following
Advantage: first, it does not undergo phase transition in membrane separating process, consumed energy very low energy enough saves the energy；Second, UF membrane needs
Space it is small, the heat-sensitive material of high concentration, organic wastewater with high salt and some room temperature can be effectively removed；Most importantly film
Separation hardly needs any chemical agent of addition, and secondary pollution will not be caused to environment and wastes other substances.So this
Membrane separation technique is all widely paid attention to and is applied in the whole world.
Chemical oxidization method is usually that some strong oxidizers are added in contaminant water, thus organic dirt in oxidative degradation sewage
Contaminate object.Chemical oxidization method is high-efficient in water treatment technology and simple process, can be very good to remove most organic dirt
Contaminate object.Processing for drinking water, the most common chemical oxidizing agent have ozone, hydroxyl radical free radical, chlorine, chlorine dioxide, permanganic acid
Potassium.Some functional group in the goal response object of low concentration can generate specific reaction with these oxidants.For example ozone holds
Easily with active aromatic group, neutral amine and double bond have specific reaction.Meanwhile ozone decomposes the hydroxyl of generation in aqueous solution
Free radical also can carbon oxygen in random disruptions organic molecule it is strong.Chlorine possesses identical group and occurs other than double bond with ozone
Oxidation reaction, chlorine and organic matter reaction are mainly substitution reaction rather than oxidation reaction, halogenated compound are generated, such as chloroform, three
Chloromethanes and monoxone etc..The standard for differentiating a kind of oxidability of oxidant is its oxidation-reduction potential, according to oxidant
Oxidation-reduction potential, can preferably find the halogenated phenols organic pollutant in suitable oxidizing degradation water, it is several
The size order of the oxidation-reduction potential of kind common oxidants is ozone > hydrogen peroxide > potassium permanganate > chlorine > chlorine dioxide.
Photocatalytic oxidation and electrochemical oxidation process etc. are also some high-level oxidation technologies, these methods have good fortune
It uses in water treatment technology.Photocatalytic oxidation is difficult to the organic matter solved with good effect, usually in processing waste water
The photochemical catalyst used has TiO2, ZnO and CdS etc., and these catalyst are also acted as when wastewater treatment is certain pollutant
Catalytic action.Electrochemical oxidation process is that free group is formed under the action of extra electric field, in free group oxidative degradation water
Organic pollutant.Electrochemical oxidation includes connecing oxidation and indirect oxidation, and direct oxidation is by shape under the action of extra electric field
At free radical direct oxidation degradation water in organic pollutant；Indirect oxidation is that novel substance work is formed by the effect of electrochemistry
For the organic pollutant in oxidant or catalyst oxidative degradation water.
Water pollution majority is to cause to grow many ligotrophics along with water eutrophication.Poor nutrition
Bacterium can degrade the organic pollutant in water, reduce harmful machine pollutant in water.Hoefel etc. has found a kind of gram-negative
Property bacterium Geo48, this bacterium can effectively degrade ground depth.The researchs such as Ho find that biological sand filter is ok with reactor
Effective removal ground depth and-methyl isoborneol, but solution rate constant is unrelated with the initial concentration of organic pollutant, but with
The concentration of biomembrane is related.But the rate of biodegradable organic pollutant is relatively slow, when influent concentration is relatively high, leads to
Machine pollutant concentration is extremely difficult to require in water outlet after crossing biological treatment, and organic matter does not have the inhibiting effect of biochemical reaction yet
There is perfect solution.So object degradation technique is not suitable for the halogenated phenols organic pollutant in water removal.
In recent years, water quality odor problem caused by halogenated phenols organic pollutant frequently occurs in China, cause
Query of the people for drinking water quality.Therefore, develop it is efficient, conveniently, economical remove halogenated phenol organic matter in water removal
Processing technique trend of the times, this is also one of research hotspot of water treatment field.
Summary of the invention
Goal of the invention: be directed to the deficiencies in the prior art, the object of the present invention is to provide it is a kind of using effective UV/
The method of sodium sulfite photo-reduction system degradation 2,4- dibromophenol, realizes the efficient degradation of 2,4- dibromophenol.
Technical solution: in order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention are as follows:
It is a kind of to utilize effective UV/sodium sulfite photo-reduction system degradation 2,4- dibromophenol method, containing 2,4- dibromophenol
Water in, 0 ~ 5mmol/L sodium sulfite is added, controls pH value of solution=6-12, carries out 500w ultraviolet lighting and reacts 2min or more, it is real
Now degradation 2,4- dibromophenol.
The concentration of sodium sulfite is 5mmol/L.
PH=the 6-10.
PH=the 6-8.
PH=8.
The 2,4- dibromophenol concentration is 100mg/L.
The utility model has the advantages that compared with prior art, the present invention utilizes effective UV/sodium sulfite photo-reduction system degradation 2,4-
The method of dibromophenol is confirmed: drop of 2, the 4- dibromophenols in the independent illumination of 500w effective UV light of different time by test
Solution degree is the increase with light application time and enhances.With the increase of light application time, the degradation rate of 2,4- dibromophenols have compared with
Big promotion, when light application time is increased to 2min by 0min, the degradation rate of 2,4- dibromophenols is increased slightly, in illumination 2min
Later, degradation speed is accelerated, and degradation efficiency improves.The sodium sulfite of various concentration has centainly 2,4- dibromophenol illumination degrading
Influence.When concentration of sodium sulfite is 20mmol/L, bromide ion can't detect in 2,4- dibromophenols, so not
It is adapted to the reducing agent of experiment.And the reduction effect of the sodium sulfite of 5mmol/L, 1mmol/L, 0.5mmol/L concentration is opposite
Preferably, when wherein the sodium sulfite of 5mmol/L concentration is as reducing agent, react relatively steady, reduction effect is also preferable, institute
It should be best reducing agent with the sodium sulfite of 5mmol/L concentration.PH value to 2,4- dibromophenol different time 500w high
The palliating degradation degree of effect UV Light has and centainly influences but be not obvious.When pH value is from 6 to 8,2,4- dibromophenols are in 500w
The degradation effect of effective UV light illumination is become better and better；But after pH value reaches 10, degradation effect has by a small margin again under
Drop.
Detailed description of the invention
Fig. 1 is the removal rate result figure of the direct photolysis of 2,4- dibromophenol；
Fig. 2 is the removal rate result figure added sodium sulphate and carry out the degradation of 2,4- dibromophenol；
Fig. 3 is SO3 2-The removal rate result figure of the degradation of 2,4- dibromophenol in/UV joint system.
Specific embodiment
The present invention is described further combined with specific embodiments below.
Photo catalysis reactor used in the following embodiment, mainly include three big main parts, be respectively as follows: light source controller 1,
1, source operation camera bellows, multitube magnetic stirring apparatus 1.Wherein, light source controller panel illustrates: (1): total power switch
(2): ammeter: xenon lamp (switch), mercury lamp (switch) (3): voltage is shown: setting, temperature setting (4) when timesharing sets, is total: when
Between and total rotation, temperature buzzer.There are 220v attaching plug, cooling fan, conveying line socket in the light source controller back side.Source operation
Camera bellows explanation: having uviol observation panel, and there is apopore at the back side, there is inlet opening, and cool down exhaust fan, is provided with magnetic agitation power supply
The fixed socket of socket, 220v power supply and xenon lamp, mercury lamp stretches out fixed industrial siding from wiring hole and connects with controller.Magnetic force stirs
It mixes device explanation: being fitted with outer cover fixing sleeve against sunshine, inspection hole, six, test tube rotation motor fixed frame, optical filtering frame are quartzy cold
Trap, panel have emergency stop switch, test tube rotation motor switch, and temperature display stirs governor, and there is 220v outlet at the back side, surveys
Warm string holes, cool down exhaust fan.
Analyzing detecting method used in the following embodiment has:
Ultraviolet light intensity measuring method: ultraviolet light intensity is measured using A1509014 ultraviolet radiation meter.500w ultraviolet light high-pressure mercury
The light intensity of lamp is 950 μ w/cm2。
The measurement of ultraviolet detection wavelength: ultraviolet detection wavelength is using LAMBDA35 ultraviolet-visible photometric determination.
Halogenated phenols measuring method: in experimentation, the quantitative analysis method about halogenated phenols is to pass through high-efficient liquid phase color
What spectrum was detected and analyzed, using methanol and ultrapure water as mobile phase, flow rate of mobile phase is set as 1.0mL/min, color
Spectrum column temperature is set as room temperature, and sample volume is set as 80 μ L.Testing conditions of the 2,4- dibromophenol under liquid chromatogram: mobile phase
Ratio (methanol: ultrapure water)=80:20,280 nm of Detection wavelength.
Bromide ion measuring method: it is measured using concentration of the Bromide Ion Selective Electrode to bromide ion.Ion selective electrode is
Current potential and a kind of logarithm of given effects of ion activity electric chemical formula sensing element in a linear relationship are a kind of to utilize film electricity
The electrochemical sensor of position-finding effects of ion activity or concentration, the sense film of eletrode tip are its core components.The feature
It is: the concentration of specific ion in solution can be measured；It is not influenced by reagent turbidity, color；Have a wide range of application.
The direct illumination degrading of embodiment 1
1, mother liquor is prepared
2, the 4- dibromophenol that 0.1g is weighed with AE124 type electronic balance, is put into the beaker of 500mL and dissolves, due to 2,4- bis-
Bromophenol is slightly soluble in water, but can dissolve under alkaline condition, so a small amount of 0.2mol/L sodium hydroxide is added, places into KH-
Ultrasonic vibration in 100E type ultrasonic cleaner after being completely dissolved to 2,4- dibromophenol, then dissolved solution constant volume is arrived
Labelled in the volumetric flask of 1000mL, reaction solution high pure nitrogen is aerated 8min and removes dissolved oxygen before testing, and is put into refrigerator
It is kept in dark place.
2, direct illumination and palliating degradation degree is measured
The 100mg/L 2 of 20mL is measured with colorimetric cylinder, 4- dibromophenol solution is put into quartz ampoule, is put into 2XF-LCA photocatalysis
In reactor, under conditions of 20 DEG C of temperature, illumination 0min, 2min, 5min, 10min, 15min.Solution after illumination is taken respectively
Sample high performance liquid chromatography measures the bromide ion concentration of 2,4- dibromophenol and records data, as a result as shown in Figure 1.
As shown in Figure 1, with the increase of light application time, the degradation rate of 2,4- dibromophenols has biggish promotion, works as illumination
When time is increased to 2min by 0min, the degradation rate of 2,4- dibromophenols is increased slightly, and further increases light application time to 5min,
The removal rate of 2,4- dibromophenols has been increased to 53%, when light application time finally being increased to 15min by 5.7%, 2,4- dibromobenzenes
The removal rate of phenol has reached 98%.
Embodiment 2 adds sodium sulfite solution and carries out illumination degrading
1, mother liquor is configured
2.5208g sodium sulfite is weighed with AE124 type electronic balance, is put into 500mL beaker, with 100mg/L 2,4- dibromobenzene
Phenol dissolves sodium sulfite, and after sodium sulfite is completely dissolved, then with 100mg/L 2,4- dibromophenol solution arrives its constant volume
In the volumetric flask of 1000mL.It prepares 20mmol/L sodium sulfite solution (using 100mg/L 2,4- dibromophenol solution as solute).
Step is repeated the above experiment, 5mmol/L sodium sulfite+100mg/L2,4- dibromophenol solution, 1mmol/L are configured
Sodium sulfite+100mg/L2,4- dibromophenol solution, 0.5mmol/L sodium sulfite+100mg/L2,4- dibromophenol solution.
2, illumination and palliating degradation degree is measured respectively
1. it is put into quartz ampoule with 20mmol/L sodium sulfite+100mg/L2,4- the dibromophenol solution that colorimetric cylinder measures 20mL,
It is put into illumination 0min, 2min, 5min, 10min in 2XF-LCA photo catalysis reactor.Solution after illumination is separately sampled with high
The bromide ion concentration of effect liquid phase chromatogram measurement 2,4- dibromophenol simultaneously records data.
2. being put into quartz ampoule with the 5mmol/L sodium sulfite+100mg/L2,4- dibromophenol solution that colorimetric cylinder measures 20mL
In, it is put into illumination 0min, 2min, 5min, 10min in 2XF-LCA photo catalysis reactor.By the separately sampled use of solution after illumination
The bromide ion concentration of high performance liquid chromatography measurement 2,4- dibromophenol simultaneously records data.
3. being put into quartz ampoule with the 1mmol/L sodium sulfite+100mg/L2,4- dibromophenol solution that colorimetric cylinder measures 20mL
In, it is put into illumination 0min, 2min, 5min, 10min in 2XF-LCA photo catalysis reactor.By the separately sampled use of solution after illumination
The bromide ion concentration of high performance liquid chromatography measurement 2,4- dibromophenol simultaneously records data.
4. being put into quartz with the 0.5mmol/L sodium sulfite+100mg/L2,4- dibromophenol solution that colorimetric cylinder measures 20mL
Guan Zhong is put into illumination 0min, 2min, 5min, 10min in 2XF-LCA photo catalysis reactor.Solution after illumination is separately sampled
The bromide ion concentration of 2,4- dibromophenol is measured with high performance liquid chromatography and records data.
In the case where effective UV light illumination 0,2,5,10min, the degradation results of different sodium sulfate concentrations such as Fig. 2 institute
Show.As shown in Figure 2, when the concentration of sodium sulfite is 20mmol/L, the presence of 2,4- dibromophenol can not be detected,
So concentration of sodium sulfite is that 20mmol/L is excessively high as reducing agent.When the concentration of sodium sulfite is 5mmol/L, with light
According to the increase of time, the degradation rate of 2,4- dibromophenols has biggish promotion, when light application time is increased to 5min by 0min, 2,
After the degradation rate of 4- dibromophenol has been increased to 90.1%, 5min by 0, degradation effect is deteriorated, when light application time reaches 10min
When, it is only higher than the removal rate of illumination 5min by 8%.When the concentration of sodium sulfite is 1mmol/L, with the increasing of light application time
Adding, the degradation rate of 2,4- dibromophenols is consequently increased, when light application time is increased to 2min by 0min, 2,4- dibromophenols
Degradation rate is increased to 33.5% by 0, further increases light application time to 5min, the removal rate of 2,4- dibromophenols is improved by 33.5%
To 94.1%, when light application time finally being increased to 10min, the removal rate of 2,4- dibromophenols has reached 99.5%.Work as sulfurous
When the concentration of sour sodium is 0.5mmol/L, with the increase of light application time, the degradation rate of 2,4- dibromophenols is consequently increased, when
When light application time is increased to 2min by 0min, the degradation rate of 2,4- dibromophenols is increased to 50.7% by 0, further increases illumination
Time to 5min, the removal rate of 2,4- dibromophenols has been increased to 83.4% by 50.7%, light application time is finally increased to 10min
When, the removal rate of 2,4- dibromophenols has reached 99.2%.
Embodiment 3
1, mother liquor is configured
2, the 4- dibromophenol that 0.1g is weighed with AE124 type electronic balance, is put into the beaker of 500mL and dissolves, due to 2,4- bis-
Bromophenol is slightly soluble in water, but can dissolve under alkaline condition, so a small amount of 0.2mol/L sodium hydroxide is added, places into KH-
Ultrasonic vibration in 100E type ultrasonic cleaner after being completely dissolved to 2,4- dibromophenol, then dissolved solution constant volume is arrived
Labelled in the volumetric flask of 1000mL, reaction solution high pure nitrogen is aerated 8min and removes dissolved oxygen before testing, and is protected from light guarantor
It deposits.
0.6302g sodium sulfite is weighed with AE124 type electronic balance, is put into 500mL beaker, with 100mg/L 2,4- bis-
Bromophenol dissolves sodium sulfite, and after sodium sulfite is completely dissolved, then with 100mg/L 2,4- dibromophenol solution is determined
Hold in the volumetric flask of 1000mL.Preparing 5mmol/L sodium sulfite solution (is molten with 100mg/L 2,4- dibromophenol solution
Matter).
2, pH is adjusted
The 50mL beaker of four drying is taken to pour into 5mmol/L sodium sulfite+100mg/L2,4- dibromophenol solution use respectively
NaOH, HCl solution adjust pH value to 6,8,10,12.
3, illumination and palliating degradation degree is measured respectively
The solution for regulating pH value is measured into 20mL into quartz test tube with colorimetric cylinder respectively, is put into 2XF-LCA light-catalyzed reaction
Illumination 0min, 2min, 3.5min, 5min, 7.5min, 10min in device.High-efficient liquid phase color is used by the solution after illumination is separately sampled
The bromide ion concentration of spectrum measurement 2,4- dibromophenol simultaneously records data.Situation of degrading is as shown in Figure 3.
From the figure 3, it may be seen that 0 into 3.5min, the degradation effect of pollutant relatively delays improving when pH value is 6
Slowly；In 3.5 promotion to degradation effect between 7.5min but by a relatively large margin；Degradation effect tends towards stability after 7.5min.
When the pH=8, the degradation effect of 2,4- dibromophenols gently increases in the increase with light application time.When the pH=10, arrived 0
Between 3.5min, the degradation effect of pollutant increases with light application time and is obviously improved, and removal rate is still with light after 3.5min
According to the time increase and increase, but increase degree slows down.When the pH=12, increase of the pollutant with light application time, removal rate
Increasing.After 5min, the degradation effect of pollutant is obviously improved.
Claims (6)
1. a kind of utilize effective UV/sodium sulfite photo-reduction system degradation 2,4- dibromophenol method, which is characterized in that containing
In the water for having 2,4- dibromophenol, 0 ~ 5mmol/L sodium sulfite is added, controls pH value of solution=6-12, carries out the reaction of 500w ultraviolet lighting
2min or more realizes degradation 2,4- dibromophenol.
2. according to claim 1 utilize effective UV/sodium sulfite photo-reduction system degradation 2,4- dibromophenol method,
It is characterized in that, the concentration of sodium sulfite is 5mmol/L.
3. according to claim 1 utilize effective UV/sodium sulfite photo-reduction system degradation 2,4- dibromophenol method,
It is characterized in that, pH=the 6-10.
4. according to claim 1 utilize effective UV/sodium sulfite photo-reduction system degradation 2,4- dibromophenol method,
It is characterized in that, pH=the 6-8.
5. according to claim 1 utilize effective UV/sodium sulfite photo-reduction system degradation 2,4- dibromophenol method,
It is characterized in that, pH=8.
6. according to claim 1 utilize effective UV/sodium sulfite photo-reduction system degradation 2,4- dibromophenol method,
It is characterized in that, 2, the 4- dibromophenol concentration is 100mg/L.
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Cited By (2)
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| CN112624259A (en) * | 2020-12-20 | 2021-04-09 | 中国科学院南京土壤研究所 | Method for removing diethyl phthalate in water by utilizing sulfite light |
| CN114751580A (en) * | 2021-03-23 | 2022-07-15 | 哈尔滨工业大学（深圳） | Method and system for treating refractory wastewater by advanced reduction pretreatment-biochemical coupling technology |
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Cited By (3)
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| CN112624259A (en) * | 2020-12-20 | 2021-04-09 | 中国科学院南京土壤研究所 | Method for removing diethyl phthalate in water by utilizing sulfite light |
| CN114751580A (en) * | 2021-03-23 | 2022-07-15 | 哈尔滨工业大学（深圳） | Method and system for treating refractory wastewater by advanced reduction pretreatment-biochemical coupling technology |
| CN114751580B (en) * | 2021-03-23 | 2023-10-24 | 哈尔滨工业大学（深圳） | Method and system for treating refractory wastewater by advanced reduction pretreatment-biochemical coupling technology |
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