CN103708584A - Aniline wastewater treatment process and application of product thereof - Google Patents
Aniline wastewater treatment process and application of product thereof Download PDFInfo
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- CN103708584A CN103708584A CN201310721746.7A CN201310721746A CN103708584A CN 103708584 A CN103708584 A CN 103708584A CN 201310721746 A CN201310721746 A CN 201310721746A CN 103708584 A CN103708584 A CN 103708584A
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- aniline
- waste water
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Abstract
The invention discloses an aniline wastewater treatment process, which comprises an aniline wastewater electrolyzing process, wherein the cathode material is stainless steel. The process of electrochemically removing aniline in the wastewater has the advantages that the removal rate of the aniline is above 98.2%, the electrolysis voltage is reduced by more than 50% in contrast with the electrolysis voltage when a metal anode is applied so that the energy consumption in the electrolysis process is reduced, the electrolyzed water is introduced into a sedimentation basin for sedimentation so that the polyaniline polymerized through electrolysis is settled down and separated out, and after being filter-pressed, washed and dried, the electric conductivity of the concentrated sediment is 0.1s/cm, and moreover, the concentrated sediment can be used as an additive to an anti-static coating and an anti-corrosive coating; therefore, secondary application of the material is realized and the energy source is saved.
Description
Technical field
The present invention relates to field of environment protection, relate in particular to a kind of waste water treatment process that contains aniline, and the application of processing product.
Background technology
Aniline is a kind of important industrial chemicals, is often used to prepare the materials such as medicine intermediate, agricultural chemicals and pigment.In process of production, aniline waste water is a kind of more reluctant chemical substance, and the method conventionally adopting is at present biochemical method, micro-electrolysis process and adds oxygenant method.
Biochemical method, because aniline has stronger sterilizing activity, so biological bacteria is difficult to survival in this class waste water, does not have obvious treatment effect.Micro-electrolysis process is because the electrolytic potential between iron carbon is lower, and aniline is difficult under this situation oxidized, and gac wherein exists certain adsorption to aniline, but will soon saturatedly lose adsorption function.Add oxygenant method; conventional oxygenant has dioxide peroxide and clorox; although this kind of method can form polyaniline precipitation by Quick Oxidation aniline; but adding of oxygenant; because add-on is controlled out of true; conventionally can cause peroxidation, polyaniline is oxidized to small molecules soluble polyaniline, cannot from waste water, remove.Other chemical substances have also been introduced in adding of simultaneous oxidation agent in waste water, make the composition of waste water more complicated, process more difficult.
Chinese patent (CN101264996B) discloses a kind of method for the treatment of aniline waste water by absorption-low temperature dry method, to contain aniline waste water by the fixed-bed reactor of absorption-catalyzer are housed, when the concentration of aniline in the waste water of discharging after absorption equals 4.9mg/L, stop into water, the residual water in reactor of draining, then pass into the oxidizing gas of carrier of oxygen volume concentrations 4～6%, air speed is 500～2000h
-1, temperature of reaction is 100～400 ℃, reaction 1～10h, and after catalytic oxidation process, absorption-catalyzer is for next absorption-catalyzed oxidation working cycle; Absorption-catalyzer is to contain a kind of in transition metal copper, iron, cobalt and nickel, take gac as carrier, and its weight percentages is: transition metal is 1～10%, and gac is 90～99%, and the specific surface area of gac is 500～1500m
2/ g.This kind of method operational difficulty need to be quoted catalyzer.
Chinese patent (CN1600696A) discloses a kind of method of nitrobenzene extraction method for treating aniline wastewater, with oil of mirbane, as extraction agent, processes aniline waste water, and the water containing a small amount of oil of mirbane of generation is as thick oil of mirbane alkali cleaning water in oil of mirbane production.Water treatment effect is undesirable.
Because above-mentioned existing aniline waste water is processed the defect existing, the inventor is based on being engaged in this type of product design manufacture abundant practical experience and expertise for many years, and the utilization of cooperation scientific principle, actively research and innovation in addition, makes it have more practicality to founding the application of a kind of novel aniline waste water treatment process and product thereof.Through constantly research, design, and after repeatedly studying sample and improving, finally create the present invention who has practical value.
Summary of the invention
Main purpose of the present invention is, overcomes the defect that existing aniline waste water treatment process exists, and a kind of novel aniline waste water treatment process is provided, and improves the decreasing ratio of Aniline, thereby is more suitable for practicality, and have the utility value in industry.
Another object of the present invention is the secondary application of aniline waste water processing product, the cost-saving and energy.
The object of the invention to solve the technical problems realizes by the following technical solutions.The aniline waste water treatment process proposing according to the present invention in order to improve the removal effect of aniline, avoids electrode pair treatment process in electrolytic process to exert an influence simultaneously, and described treatment process comprises the process of electrolysis aniline waste water, and cathode material adopts stainless steel.
Aforesaid aniline waste water treatment process, wherein, anode is electrically conductive polyaniline electrode.
In order to guarantee electrolysis effectiveness, aforesaid aniline waste water treatment process, wherein, it is 1～4V that electrolysis voltage is controlled.
Aforesaid aniline waste water treatment process, wherein, electrolysis time is 3～5h, in this treatment time process, treatment effect is best.
Aforesaid aniline waste water treatment process, wherein, electrolysis obtains polyaniline throw out.
Aforesaid aniline waste water treatment process, wherein, polyaniline throw out is through press filtration, washing and drying treatment.
Aforesaid aniline waste water treatment process, wherein, the sedimentary perveance of polyaniline is 0.1～1s/cm.
In order to improve the utilization ratio of material, by the polyaniline throw out of aforementioned preparation for the preparation of antistatic coating additive.
On the other hand, as application one of, by the polyaniline throw out of aforementioned preparation for the preparation of anticorrosive coating additive.
By technique scheme, the application of aniline waste water treatment process of the present invention and product thereof at least has following advantages:
Its decreasing ratio of aniline that electrochemistry of the present invention removes in waste water can reach more than 98.2%, electrolysis voltage when electrolysis voltage ratio is used metal anode has reduced more than 50%, reduced the energy consumption in electrolytic process, water body after electrolysis passes into settling tank and precipitates by the polyaniline precipitate and separate of electrolytic polymerization out, concentrated throw out is after press filtration, washing, being dried, perveance is 0.1s/cm, can be used as the additive of antistatic coating and anticorrosive coating, provide the secondary application of material, save energy.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technique means of the present invention, and can be implemented according to the content of specification sheets, below with preferred embodiment of the present invention, is described in detail as follows.
Embodiment
For further setting forth the present invention, reach technique means and the effect that predetermined goal of the invention is taked, to the aniline waste water treatment process proposing according to the present invention and its embodiment of application, feature and the effect thereof of product thereof, be described in detail as follows.
Embodiment 1
Its concrete technology method of aniline waste water treatment process of the present invention is: aniline waste water is passed into electrolyzer, the anode of electrolyzer is electrically conductive polyaniline electrode, stainless steel is as negative electrode, and electrolysis voltage is controlled at 1.5V, and the residence time of aniline waste water in electrolyzer is controlled at 3 hours.Water body after electrolysis passes into settling tank and precipitates by the polyaniline precipitate and separate of electrolytic polymerization out, and concentrated throw out is after press filtration, washing, being dried, and perveance is 0.1s/cm, can be used as the additive of antistatic coating and anticorrosive coating.Its decreasing ratio of aniline that electrochemistry of the present invention removes in waste water can reach more than 98.2%, electrolysis voltage when electrolysis voltage ratio is used metal anode has reduced more than 50%, reduced the energy consumption in electrolytic process, for the processing of aniline waste water provides a kind of new selection approach.
Embodiment 2
Its concrete technology method of aniline waste water treatment process of the present invention is: aniline waste water is passed into electrolyzer, the anode of electrolyzer is electrically conductive polyaniline electrode, stainless steel is as negative electrode, and electrolysis voltage is controlled at 3.5V, and the residence time of aniline waste water in electrolyzer is controlled at 4 hours.Water body after electrolysis passes into settling tank and precipitates by the polyaniline precipitate and separate of electrolytic polymerization out, and concentrated throw out is after press filtration, washing, being dried, and perveance is 1.0s/cm, can be used as the additive of antistatic coating and anticorrosive coating.Its decreasing ratio of aniline that electrochemistry of the present invention removes in waste water can reach more than 98.2%, electrolysis voltage when electrolysis voltage ratio is used metal anode has reduced more than 50%, reduced the energy consumption in electrolytic process, for the processing of aniline waste water provides a kind of new selection approach.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (9)
1. an aniline waste water treatment process, is characterized in that: described treatment process comprises the process of electrolysis aniline waste water, and cathode material is stainless steel.
2. aniline waste water treatment process according to claim 1, wherein, anode is electrically conductive polyaniline electrode.
3. aniline waste water treatment process according to claim 1 and 2, wherein, it is 1～4V that electrolysis voltage is controlled.
4. aniline waste water treatment process according to claim 1 and 2, wherein, electrolysis time is 3～5h.
5. aniline waste water treatment process according to claim 1 and 2, wherein, electrolysis obtains polyaniline throw out.
6. aniline waste water treatment process according to claim 5, wherein, polyaniline throw out is through press filtration, washing and drying treatment.
7. aniline waste water treatment process according to claim 6, wherein, the sedimentary perveance of polyaniline is 0.1～1s/cm.
8. the polyaniline throw out of being prepared by claim 6 is for the preparation of antistatic coating additive.
9. the polyaniline throw out of being prepared by claim 6 is for the preparation of anticorrosive coating additive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310721746.7A CN103708584A (en) | 2013-12-24 | 2013-12-24 | Aniline wastewater treatment process and application of product thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310721746.7A CN103708584A (en) | 2013-12-24 | 2013-12-24 | Aniline wastewater treatment process and application of product thereof |
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| CN103708584A true CN103708584A (en) | 2014-04-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674294A (en) * | 2014-12-18 | 2015-06-03 | 南京航空航天大学 | Preparation method and application of graphene-polyaniline conductive composite |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1850643A (en) * | 2006-05-26 | 2006-10-25 | 南京大学 | Method for degrading aminobenzene or/and nitrobenzene in waste water by electrolytic process |
| CN101362918A (en) * | 2008-07-31 | 2009-02-11 | 傅晓平 | Polyaniline metal anticorrosion water-soluble industrial coatings |
| CN101659789A (en) * | 2008-08-29 | 2010-03-03 | 清华大学 | Preparation method for carbon nano tube/conducting polymer composite material |
-
2013
- 2013-12-24 CN CN201310721746.7A patent/CN103708584A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1850643A (en) * | 2006-05-26 | 2006-10-25 | 南京大学 | Method for degrading aminobenzene or/and nitrobenzene in waste water by electrolytic process |
| CN101362918A (en) * | 2008-07-31 | 2009-02-11 | 傅晓平 | Polyaniline metal anticorrosion water-soluble industrial coatings |
| CN101659789A (en) * | 2008-08-29 | 2010-03-03 | 清华大学 | Preparation method for carbon nano tube/conducting polymer composite material |
Non-Patent Citations (1)
| Title |
|---|
| 居明等: ""处理苯胺废水的电化学研究"", 《环境污染治理技术与设备》, vol. 3, no. 9, 30 September 2002 (2002-09-30), pages 28 - 30 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674294A (en) * | 2014-12-18 | 2015-06-03 | 南京航空航天大学 | Preparation method and application of graphene-polyaniline conductive composite |
| CN104674294B (en) * | 2014-12-18 | 2018-02-06 | 南京航空航天大学 | The preparation method and application of graphene-layer/polyaniline conductive compound |
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Application publication date: 20140409 |