CN104211239A - Treatment method for aniline and nitrobenzene containing wastewater - Google Patents
Treatment method for aniline and nitrobenzene containing wastewater Download PDFInfo
- Publication number
- CN104211239A CN104211239A CN201410467573.5A CN201410467573A CN104211239A CN 104211239 A CN104211239 A CN 104211239A CN 201410467573 A CN201410467573 A CN 201410467573A CN 104211239 A CN104211239 A CN 104211239A
- Authority
- CN
- China
- Prior art keywords
- aniline
- waste water
- nitrobenzene
- wastewater
- treatment process
- 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
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 title claims abstract description 74
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 239000002351 wastewater Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 24
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000003463 adsorbent Substances 0.000 claims abstract description 9
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 9
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 9
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 9
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 238000005286 illumination Methods 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000010828 elution Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 12
- 230000015556 catabolic process Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 8
- 230000003197 catalytic effect Effects 0.000 abstract description 7
- 230000003647 oxidation Effects 0.000 abstract description 7
- 238000007254 oxidation reaction Methods 0.000 abstract description 7
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 229910001448 ferrous ion Inorganic materials 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- -1 iron ion Chemical class 0.000 description 3
- 238000004042 decolorization Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 206010005003 Bladder cancer Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 208000007097 Urinary Bladder Neoplasms Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 231100000570 acute poisoning Toxicity 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 201000007270 liver cancer Diseases 0.000 description 1
- 208000014018 liver neoplasm Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 201000005112 urinary bladder cancer Diseases 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a treatment method for aniline and nitrobenzene containing wastewater, belonging to the field of wastewater treatment methods. The treatment method for aniline and nitrobenzene containing wastewater comprises the following steps: removing impurities from the aniline and nitrobenzene containing wastewater by virtue of gratings; filtering by filtering sand to obtain orange-yellow transparent wastewater; enabling the filtered wastewater to pass through a pre-treated adsorbent resin bed and flow into a reaction pond; adjusting the pH value to 3-4 in the reaction pond by hydrochloric acid; then, adding hydrogen peroxide and ferrous sulfate into the wastewater; stirring to react under sunlight illumination; and after reaction, discharging the supernate of the wastewater to obtain the treated effluent. According to the treatment method for aniline and nitrobenzene containing wastewater, pollutants such as aniline and nitrobenzene are degraded by adopting adsorption-double catalytic oxidation. Under the optimal condition, the degradation rates of aniline and nitrobenzene are respectively reach 99.7% and 99.6%, the COD removal rate reaches 97% and the decoloring rate reaches over 99%. The wastewater fully meets the discharge standard. The method further has the characteristics of good treatment effect, simplicity in operation, low cost and the like.
Description
Technical field
The present invention relates to a kind for the treatment of process containing aniline, nitrobenzene waste water, belong to method of wastewater treatment field.
Background technology
Aniline, oil of mirbane are important industrial chemicals, be widely used in the industry such as medicine, chemical industry, dyestuff, the toxic of this compounds to human body and microorganism is very big, biodegradability is very poor, long-term contact with such material can cause liver cancer or bladder cancer, also can cause human body acute poisoning, and generation headache, dizzy, hypomnesis, unsmooth breath be the symptom such as death by suffocation even, due to such waste water comparatively bio-refractory, there is no effective administering method at present.
Therefore, study the treatment process be applicable to containing aniline, nitrobenzene waste water that a kind for the treatment of effect is good, operation is simple and cost is low and there is very high application prospect.
Summary of the invention
The present invention aims to provide the treatment process be applicable to containing aniline, nitrobenzene waste water that a kind for the treatment of effect is good, operation is simple and cost is low.
Treatment process containing aniline, nitrobenzene waste water of the present invention, comprises the following steps:
Impurity will be removed by grid containing aniline, nitrobenzene waste water, filter through filter sand again, obtain obtaining orange-yellow transparent waste water, by the waste water after filtration by after pretreated polymeric adsorbent bed, flow into reaction tank, in reaction tank, regulate pH value 3-4 with hydrochloric acid, then in waste water, add hydrogen peroxide and ferrous sulfate, stirring reaction under solar light irradiation, discharges wastewater supernatant fluid after reaction and is the draining handled well.
Preferably, hydrogen peroxide use of the present invention is 100mg/L, and ferrous sulfate consumption is 10mg/L.
Preferred, waste water of the present invention is 1h by the time of polymeric adsorbent bed, and the illumination stirring reaction time is 12h.
Preferred further, polymeric adsorbent of the present invention is H-1O3 resin, and pretreatment process, for first to use industrial ethanol wash colourless to effluent liquid, then uses the salt acid elution of 5%, wash with the sodium hydroxide solution of 10%, it is colourless for being finally washed with distilled water to effluent liquid again.
In treatment process of the present invention, adopt the pollutents such as absorption-double catalytic oxidation aniline degradation, oil of mirbane, after pre-treatment being carried out to aniline, nitrobenzene waste water with polymeric adsorbent, the content of Aniline, oil of mirbane can be made to reduce to 215.3mg/L and 142.5mg/L respectively by original 1O57.7mg/L and 1623.4mg/L, for the degraded of follow-up double catalytic oxidation creates favorable conditions.Under illumination condition, carried out the oxidation of the pollutent such as aniline, oil of mirbane again by hydrogen peroxide and the agent of ferrous sulfate double catalytic oxidation, aniline, the oil of mirbane in waste water is removed in degraded further, thus makes waste water reach emission standard.
Double catalytic oxidation degraded has hydrogen peroxide use, ferrous sulfate consumption, waste water pH value, reaction times and illumination type to the major influence factors of water treatment effect.The change of concentration of hydrogen peroxide is larger on two catalytic degradation reaction impact, when concentration of hydrogen peroxide is 100mg/L, the clearance of the maximum COD of two catalysis degradation modulus of aniline, oil of mirbane is also the highest, after 100mg/L, degradation rate reduces on the contrary, this is because concentration of hydrogen peroxide is too high,-the OH generated in reacting is reacted with organism, and directly mutual collision regenerate H
2o
2cause degradation rate downward trend; When ferrous sulfate concentration is 1Omg/L, the clearance of the maximum COD of two catalysis degradation modulus of aniline, oil of mirbane is also the highest, after 10mg/L, degradation rate reduces on the contrary, this is because ferrous ion can produce iron ion in decomposition of hydrogen peroxide process, and iron ion is very easily with Fe (OH) 2
+form exist, it has larger absorption in ultraviolet region, thus reduces the intensity of UV-light, causes the two catalysis degradation modulus declines of aniline, oil of mirbane.Under solar light irradiation, aniline, nitrobenzene waste water degradation rate are also higher, but be not so good as the effective of UV-light, the katalysis of sunlight comes from the part near-ultraviolet light of the 3%-4% wherein contained, under the effect of near-ultraviolet light in this section, accelerate the decomposition of hydrogen peroxide, produce certain photolysis to aniline, oil of mirbane, this carrys out decontamination to utilizing sun power later, reduce cost of sewage disposal, save energy is very useful.All be unfavorable for the removal of aniline, oil of mirbane when pH is higher or lower, pH raises the decomposition by suppressing hydrogen peroxide, and the generation quantity of OH is reduced, so now clearance is lower; In addition, pH is too low, and the iron ion that can make again is difficult to be reduced to ferrous ion, thus makes the undersupply of ferrous ion, is also unfavorable for the generation of OH, clearance is declined.
Treatment process containing aniline, nitrobenzene waste water of the present invention, adopt the pollutents such as absorption-double catalytic oxidation aniline degradation, oil of mirbane, under top condition of the present invention, the degradation rate of aniline, oil of mirbane is respectively up to 99.7% and 99.6%, COD clearance reaches 97%, percent of decolourization reaches more than 99%, and waste water reaches emission standard completely, and have treatment effect good, run the features such as simple and cost is low.
Embodiment
Embodiment one:
First carry out pre-treatment to H-1O3 resin, first use industrial ethanol wash colourless to effluent liquid, then use the salt acid elution of 5%, then wash with the sodium hydroxide solution of 1O%, it is colourless for being finally washed with distilled water to effluent liquid.Impurity will be removed containing aniline, nitrobenzene waste water by grid simultaneously, filter through filter sand again, obtain obtaining orange-yellow transparent waste water, by the waste water after filtration to stop the speed of 1h at resin bed by after pretreated polymeric adsorbent bed, flow into reaction tank, in reaction tank, regulate pH value 3-4 with hydrochloric acid, then in waste water, add the hydrogen peroxide of 100mg/L and the ferrous sulfate of 10mg/L, stirring reaction 12h under solar light irradiation, discharges wastewater supernatant fluid after reaction and is the draining handled well.
Embodiment two: treatment effect
Use the treatment process containing aniline, nitrobenzene waste water of the present invention, process the waste water in certain chemical plant, treatment effect as shown in Table-1.
From table-1, treatment process of the present invention, all reaches more than 99%, COD clearance to the aniline of aniline, nitrobenzene waste water and oil of mirbane clearance and reaches more than 97%, percent of decolourization reach 99% with, waste water reaches emission standard completely.
Claims (4)
1., containing the treatment process of aniline, nitrobenzene waste water, comprise the following steps:
Impurity will be removed by grid containing aniline, nitrobenzene waste water, filter through filter sand again, obtain obtaining orange-yellow transparent waste water, by the waste water after filtration by after pretreated polymeric adsorbent bed, flow into reaction tank, in reaction tank, regulate pH value 3-4 with hydrochloric acid, then in waste water, add hydrogen peroxide and ferrous sulfate, stirring reaction under solar light irradiation, discharges wastewater supernatant fluid after reaction and is the draining handled well.
2. the treatment process containing aniline, nitrobenzene waste water as claimed in claim 1, it is characterized in that described hydrogen peroxide use is 100mg/L, ferrous sulfate consumption is 10mg/L.
3. the treatment process containing aniline, nitrobenzene waste water as claimed in claim 1, it is characterized in that described waste water is 1h by the time of polymeric adsorbent bed, the illumination stirring reaction time is 12h.
4. the treatment process containing aniline, nitrobenzene waste water as claimed in claim 1, it is characterized in that described polymeric adsorbent is H-1O3 resin, pretreatment process is for first to use industrial ethanol wash colourless to effluent liquid, then the salt acid elution of 5% is used, wash with the sodium hydroxide solution of 10%, it is colourless for being finally washed with distilled water to effluent liquid again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467573.5A CN104211239A (en) | 2014-09-15 | 2014-09-15 | Treatment method for aniline and nitrobenzene containing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467573.5A CN104211239A (en) | 2014-09-15 | 2014-09-15 | Treatment method for aniline and nitrobenzene containing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104211239A true CN104211239A (en) | 2014-12-17 |
Family
ID=52093206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410467573.5A Pending CN104211239A (en) | 2014-09-15 | 2014-09-15 | Treatment method for aniline and nitrobenzene containing wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104211239A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455757A (en) * | 2018-03-21 | 2018-08-28 | 南通波涛化工有限公司 | A kind of processing method of amino benzene analog waste water |
| CN110683993A (en) * | 2019-10-16 | 2020-01-14 | 黄冈师范学院 | A kind of preparation method and application of ferrous phthalohydrazide |
| CN111484164A (en) * | 2020-04-24 | 2020-08-04 | 华南理工大学 | A kind of treatment method and device for emergency removal of nitrobenzene in emergencies |
| CN112777716A (en) * | 2020-12-09 | 2021-05-11 | 北京理工大学 | Method for photocatalytic degradation of trace organic macromolecules in surface water |
| CN113526754A (en) * | 2020-04-10 | 2021-10-22 | 中石化南京化工研究院有限公司 | Method for treating nitrobenzene wastewater by ultraviolet light-reinforced Fenton oxidation |
-
2014
- 2014-09-15 CN CN201410467573.5A patent/CN104211239A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455757A (en) * | 2018-03-21 | 2018-08-28 | 南通波涛化工有限公司 | A kind of processing method of amino benzene analog waste water |
| CN110683993A (en) * | 2019-10-16 | 2020-01-14 | 黄冈师范学院 | A kind of preparation method and application of ferrous phthalohydrazide |
| CN110683993B (en) * | 2019-10-16 | 2022-11-04 | 黄冈师范学院 | Preparation method and application of ferrous phthalhydrazide |
| CN113526754A (en) * | 2020-04-10 | 2021-10-22 | 中石化南京化工研究院有限公司 | Method for treating nitrobenzene wastewater by ultraviolet light-reinforced Fenton oxidation |
| CN111484164A (en) * | 2020-04-24 | 2020-08-04 | 华南理工大学 | A kind of treatment method and device for emergency removal of nitrobenzene in emergencies |
| CN112777716A (en) * | 2020-12-09 | 2021-05-11 | 北京理工大学 | Method for photocatalytic degradation of trace organic macromolecules in surface water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |
|
| WD01 | Invention patent application deemed withdrawn after publication |