CN102452698A - Treating method for industrial waste water by using ultraviolet light for catalytic oxidation - Google Patents
Treating method for industrial waste water by using ultraviolet light for catalytic oxidation Download PDFInfo
- Publication number
- CN102452698A CN102452698A CN2010105190593A CN201010519059A CN102452698A CN 102452698 A CN102452698 A CN 102452698A CN 2010105190593 A CN2010105190593 A CN 2010105190593A CN 201010519059 A CN201010519059 A CN 201010519059A CN 102452698 A CN102452698 A CN 102452698A
- Authority
- CN
- China
- Prior art keywords
- waste water
- industrial waste
- trade effluent
- oxidation
- light
- 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
Images
Abstract
The invention brings forward a treating method for industrial waste water by using ultraviolet light for catalytic oxidation. The method comprises the following steps: adding a catalyst into industrial waste water; generating ultraviolet light; irradiating industrial waste water containing the catalyst with the generated ultraviolet light and carrying out a catalytic oxidation reaction. Compared to conventional treating methods for industrial waste water, the treating method provided in the invention at least has the advantages of reduction in secondary pollution and energy consumption, simple operation, etc.
Description
Technical field
The present invention relates to sewage disposal technology, relate in particular to a kind of process for treating industrial waste water that carries out catalyzed oxidation with UV-light.
Background technology
Environment protection is the important topic that mankind nowadays society faces.Particularly, the processing for the sewage that forms in urban life and the industrial production is the most important thing of present environmental protection cause.Usually, the sewage work of main flow mainly adopts sewage disposal technologies such as filtration method, Coagulation Method and the precipitator method at present.
Filtration method can only be removed impurity, and is little to the sewage effect that COD (COD) and biological oxygen demand (BOD) are high, and filtering power consumption is high, and cost of sewage disposal increases.
Coagulation Method is particularly suitable for the dyeing waste water that dyeing produces.But for the trade effluent of other types, the effect of this method can not be satisfactory.
Though precipitator method processing cost is relatively low, the initial cost of this kind method is big, treatment capacity is less relatively, processing efficiency is low.
Obviously, above-mentioned three kinds of methods are very not desirable for the Treatment Technology effect of industrial sewage.
Therefore, industry is needed the above-mentioned deficiency that a kind of novel sewage disposal technology overcomes prior art badly.
Summary of the invention
Research in recent years shows that photochemical catalytic oxidation has all shown degradation effect efficiently to the reluctant pollutent of conventional water technology.
Therefore, the contriver of this case carries out the process for treating industrial waste water of catalyzed oxidation based on what for many years research and development experience had proposed a kind of novelty with UV-light.
The present invention proposes and a kind ofly carry out the process for treating industrial waste water of catalyzed oxidation, comprising: in trade effluent, add catalyzer with UV-light; Generate UV-light; And use the UV-irradiation that is generated to add the trade effluent of catalyzer, carry out catalytic oxidation.
According to a preferred embodiment, in above-mentioned process for treating industrial waste water, said catalyzer is a titanium oxide.
According to a preferred embodiment, in above-mentioned process for treating industrial waste water, before the said step of using the trade effluent that the UV-irradiation that generated adds catalyzer, also comprise: in said trade effluent, add ydrogen peroxide 50.
According to a preferred embodiment, in above-mentioned process for treating industrial waste water, before the said step of using the trade effluent that the UV-irradiation that generated adds catalyzer, also comprise: in said trade effluent, add ozone.
According to a preferred embodiment, in above-mentioned process for treating industrial waste water, before the said step of using the trade effluent that the UV-irradiation that generated adds catalyzer, also comprise: in said trade effluent, add the oxidation Fenton.
According to a preferred embodiment, in above-mentioned process for treating industrial waste water, said UV-light is 254nm or 185nm.
This case contriver's experiment confirms: utilize ultraviolet this compared with techniques than other water technology (for example charcoal absorption, chemical oxidation, wet oxidation, supercritical water oxidation, biological treatment etc.); It also has following several respects advantage: (1) can make the pollution substance permineralization decompose, and can not produce secondary pollution; (2) light-catalyzed reaction does not have selectivity to organic degraded; (3) can react at normal temperatures and pressures, the minimizing operational difficulty cuts down the consumption of energy; (4) photocatalyst has cheapness, nontoxic, stable and characteristics such as can reuse; (5) has the prospect of utilizing sun power further to cut down the consumption of energy on a large scale.In addition, through combining ydrogen peroxide 50, ozone and oxidation Fenton can obtain better sewage degradation effect.
Description of drawings
Fig. 1 shows the indicative flowchart according to basic skills of the present invention.
Embodiment
Ultimate principle of the present invention is the photochemical oxidation method.Method of the present invention improves the speed and the oxidation capacity of oxidizing reaction under the acting in conjunction of chemical oxidation and optical radiation.Photochemical oxidation method of the present invention is source of radiation with the UV-light, need drop into a certain amount of oxygenant and catalyzer in advance in the water simultaneously.It is splendid that the present invention has toxic small organic molecule removal effect to difficult degradation.In addition, photochemical oxidation reaction of the present invention makes and produces the high radical of many activity in the water, and these radicals are easy to destroy organic constitution.
Describe technical scheme of the present invention in detail below in conjunction with accompanying drawing.Wherein, identical label is used to represent identical element, and the concrete T.T. in the following description does not constitute the substantial limit to technical scheme of the present invention itself.In fact, the various variations that those skilled in the art knew all allow.
Fig. 1 schematically shows the basic step of carrying out the process for treating industrial waste water of catalyzed oxidation with UV-light according to of the present invention.As shown in Figure 1, this method comprises: in trade effluent, add catalyzer (step 101); Generate UV-light (step 102); And use the UV-irradiation that is generated to add the trade effluent of catalyzer, carry out catalytic oxidation (step 103).
Can be used for catalyzer in the trade effluent have many in.In step 101 of the present invention, preferably adopt titanium oxide.The advantage of titanium oxide be its strong oxidizing property, to the non-selectivity of effective object with finally can make the organism permineralization.
In addition, the UV-light in the step 102 normally utilizes the mercury discharge tube to generate.The body inner suspension of this mercury discharge tube this rare gas element of mercury vapour, is a quartz glass tube that comprises two electrodes and shackle.After the quartz burner energising and being excited, can produce UV-light.UV-light is the optical radiation of wavelength below 400nm.Experiment based on the contriver shows, the preferred UV-light that adopts 254nm or 185nm among the present invention, and these two kinds of wavelength are particularly useful for WWT and sterilization and disinfection.
In addition, before carrying out catalytic oxidation, also need add oxygenant.Preferably, oxygenant can be selected ozone, hydrogen peroxide or oxidation Fenton for use.The present invention produces the very strong radical of oxidation capacity through the oxygenizement and the photochemical radiation of combined oxidant.
Particularly; Research based on the contriver; UV-light add the combination of ozone can oxidation ozone the organism in the inoxidizable micro-polluted water; Like trichloromethane, tetracol phenixin or the like, thereby the mutagen that reduces in the water is active, and its oxidation effectiveness is than using UV-light separately or using ozone all better separately.
At last, contriver's research also shows: the power of UV-light has stronger influence to light-catalyzed reaction.Therefore, can realize preferable clean effect with lower energy consumption through choosing suitable uv power.On the other hand, ultraviolet catalytic also has an outstanding degradation effect to some specific hazardous and noxious substances.
Claims (6)
1. one kind is carried out the process for treating industrial waste water of catalyzed oxidation with UV-light, comprising:
In trade effluent, add catalyzer;
Generate UV-light; And
Use the UV-irradiation that is generated to add the trade effluent of catalyzer, carry out catalytic oxidation.
2. process for treating industrial waste water as claimed in claim 1 is characterized in that, said catalyzer is a titanium oxide.
3. process for treating industrial waste water as claimed in claim 1 is characterized in that, before the said step of using the trade effluent that the UV-irradiation that generated adds catalyzer, also comprises:
In said trade effluent, add ydrogen peroxide 50.
4. process for treating industrial waste water as claimed in claim 1 is characterized in that, before the said step of using the trade effluent that the UV-irradiation that generated adds catalyzer, also comprises:
In said trade effluent, add ozone.
5. process for treating industrial waste water as claimed in claim 1 is characterized in that, before the said step of using the trade effluent that the UV-irradiation that generated adds catalyzer, also comprises:
In said trade effluent, add the oxidation Fenton.
6. process for treating industrial waste water as claimed in claim 1 is characterized in that, said UV-light is 254nm or 185nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105190593A CN102452698A (en) | 2010-10-26 | 2010-10-26 | Treating method for industrial waste water by using ultraviolet light for catalytic oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105190593A CN102452698A (en) | 2010-10-26 | 2010-10-26 | Treating method for industrial waste water by using ultraviolet light for catalytic oxidation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102452698A true CN102452698A (en) | 2012-05-16 |
Family
ID=46036442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105190593A Pending CN102452698A (en) | 2010-10-26 | 2010-10-26 | Treating method for industrial waste water by using ultraviolet light for catalytic oxidation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102452698A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11390539B2 (en) | 2015-12-23 | 2022-07-19 | Novolabs Limited | Liquid treatment method and apparatus |
-
2010
- 2010-10-26 CN CN2010105190593A patent/CN102452698A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11390539B2 (en) | 2015-12-23 | 2022-07-19 | Novolabs Limited | Liquid treatment method and apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9334183B2 (en) | Methods for the treatment of ballast water | |
| Mecha et al. | Ultraviolet and solar photocatalytic ozonation of municipal wastewater: Catalyst reuse, energy requirements and toxicity assessment | |
| CN101492200A (en) | Method for photoelectrocatalysis oxidization of organic waste water with ozone | |
| CN101863526A (en) | Method and device for degrading pollutants through ultraviolet catalytic wet oxidation | |
| Al-Dawery | Photo-catalyst degradation of tartrazine compound in wastewater using TiO2 and UV light | |
| Sharma et al. | Studies on degradation of reactive red 135 dye in wastewater using ozone | |
| CN102225793A (en) | Method for removing ammonia nitrogen, nitrogen nitrate and nitrogen nitrite in water synchronously | |
| CN102690005A (en) | Method for treating organic wastewater through photoelectric catalytic oxidation | |
| CN104829019A (en) | Photo-electric organic wastewater co-processing method based on graphene material and device thereof | |
| EP0766647B1 (en) | Photoelectrochemical reactor | |
| Grote | Application of advanced oxidation processes (AOP) in water treatment | |
| CN101659503A (en) | Membrane bioreaction-nanometer fixed state light-catalyzed reaction device | |
| CN100371261C (en) | Method for treating wastewater through catalysis of connected load type Ti02 of plasma in liquid phase | |
| CN109179814A (en) | A method of combination advanced oxidation handles sewage | |
| JP2008302308A (en) | Photocatalyst and method for manufacturing thereof, method and apparatus for water treatment using thereof | |
| CN202430036U (en) | Oxidation reaction device combining nanofiltration membrane with photocatalysis | |
| CN103214133B (en) | Graphene sewage purification combined device and sewage purification method thereof | |
| CN102452698A (en) | Treating method for industrial waste water by using ultraviolet light for catalytic oxidation | |
| CN100371260C (en) | Methdof for treating wastewater through catalysis of plasma Ti02 in liquid phase | |
| Austen et al. | Fenton reagent for organic compound removal in wastewater | |
| JP2006281005A (en) | Apparatus and method for treating water using photocatalyst | |
| CN209835710U (en) | Repair process device for micro-polluted underground water | |
| CN206328268U (en) | A kind of industrial organic waste water processing unit | |
| CN201770512U (en) | Device for decomposing pollutants by ultraviolet catalytic wet oxidation | |
| KR20040069718A (en) | The resolution method of the non-resolutive material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |