CN105936560A - Method for degrading sewage based on dye photooxidation and visible light catalytic oxidation - Google Patents
Method for degrading sewage based on dye photooxidation and visible light catalytic oxidation Download PDFInfo
- Publication number
- CN105936560A CN105936560A CN201610349824.9A CN201610349824A CN105936560A CN 105936560 A CN105936560 A CN 105936560A CN 201610349824 A CN201610349824 A CN 201610349824A CN 105936560 A CN105936560 A CN 105936560A
- Authority
- CN
- China
- Prior art keywords
- sewage
- photooxidation
- visible light
- dye
- catalytic oxidation
- 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
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- 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
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- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- 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
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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- 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
Abstract
The invention discloses a method for degrading sewage based on dye photooxidation and visible light catalytic oxidation. The method comprises the following steps: 1, pumping sewage to a sewage treatment pool, and mechanically stirring the sewage to uniformly disperse all phases in the sewage; 2, adding 0.1g of a dye photooxidation catalyst to every liter of the sewage; 3, using visible light to irritate the sewage treatment pool, and stirring and reacting the sewage for 5h; and 4, standing the sewage after the reaction ends, and filtering the sewage through a filtering device. Compared with the prior art, the method disclosed in the invention has the following advantages: 1, the treated sewage can be directly discharged or biologically purified; and 2, the filtered dye photooxidation catalyst can be recycled after being recovered.
Description
Technical field
The present invention relates to sewage treatment area, a kind of method being specifically related to sewage of degrading based on dyestuff photooxidation and visible light catalytic oxidation.
Background technology
In Chinese Urbanization scale constantly extends the process improved constantly with industrialization degree, substantial amounts of reluctant trade effluent and sanitary sewage can be produced, the major pollutants that sewage is contained within include organic pollutants, aerobic or anaerobism pollutant, plant pollution thing, toxic pollutant and radioactive contaminant, etc., water quality is complicated, toxicity is big, ammonia nitrogen, COD (COD) comparision contents are high, therefore, how to process trade effluent, make it meet the requirement of environmental protection, be just particularly important.
Owing to above-mentioned sewage usually containing substantial amounts of organic macromolecule material, graininess or dust-like material; in prior art; when organic macromolecule material, graininess or the dust-like material processed in above-mentioned sewage; oxidant, catalyst, flocculant or flocculation aid would generally be added in sewage; by the chemical reaction within mixed material, remove organic macromolecule material, graininess or dust-like material.
The chemical reaction of mixed material is the most abundant, depends on the uniformity coefficient that mixed material mixes, and mixed material mixing is the most uniform, and chemical reaction will be the most abundant, thus scrubbing clean-up effect is the best；In prior art, generally using stirring for a long time to come combined sewage, mud and oxidant, catalyst and flocculant, but use said method, mixed material can not be made to reach molecule, being sufficiently mixed of ion level, this will affect the treatment effect of sewage.Traditional chemical physical method has the disadvantages that and generally uses substantial amounts of hydrogen peroxide as Strong oxdiative source, it is provided that active oxygen atom i.e. hydroxyl radical free radical (OH), owing to hydrogen peroxide price is higher, this will be greatly improved the cost of sewage disposal.And, sewage can not be sufficiently mixed with oxidant, catalyst or flocculant, so that the organic macromolecule material in sewage fully can not react with oxidant, catalyst or flocculant, and this effect that cannot reach thoroughly to purify sewage.By using additional light source to be irradiated being allowed to occur chemical oxidation to be referred to as photocatalytic oxidation in the presence of a catalyst to sewage.In existing photochemical catalytic oxidation system, generally individually using ultraviolet light and irradiate, but the required higher quantum yield of energy requirement of reaction is low, reaction rate is the highest.
Summary of the invention
The invention aims to overcome the deficiencies in the prior art, it is provided that a kind of method based on dyestuff photooxidation and visible light catalytic oxidation degraded sewage solves the problems referred to above.
For solving above-mentioned technical problem, the technical scheme is that
A kind of method of sewage of degrading based on dyestuff photooxidation and visible light catalytic oxidation, comprises the following steps:
A. by sewage suction treatment tank, being respectively uniformly dispersed mutually in sewage is made by mechanical agitation；
B. dyestuff photooxidation catalyst is added according to the metering of every liter of sewage 0.1g；
C. radiation of visible light treatment tank, stirring reaction treatment 5 hours are used；
D. stand after reaction terminates, filtered by filtering device.
Preferably, the visible ray described in step C is 1000WALED white light or sunlight.
Compared with prior art, the invention have the benefit that 1) process after sewage can be in line or carry out biological cleaning；2) the dyestuff photooxidation catalyst recycling Posterior circle after filtering uses.
Detailed description of the invention
By making the architectural feature to the present invention and effect of being reached have a better understanding and awareness, describe in detail in order to preferred embodiment, be described as follows:
A kind of method of sewage of degrading based on dyestuff photooxidation and visible light catalytic oxidation, comprises the following steps: A., by sewage suction treatment tank, makes being respectively uniformly dispersed mutually in sewage by mechanical agitation；B. dyestuff photooxidation catalyst is added according to the metering of every liter of sewage 0.1g；C. radiation of visible light treatment tank, stirring reaction treatment 5 hours are used；D. stand after reaction terminates, filtered by filtering device.Visible ray described in step C is 1000WALED white light or sunlight.
Dyestuff photooxidation catalyst used in the present invention is Eosin-1 dyestuff photooxidation catalyst, and this catalyst is made up of following component: mass fraction is the Kaolin of 20 ~ 30 parts, the montmorillonite of 20 ~ 40 parts, the aluminum lime-ash of 20 ~ 40 parts, the eosin W or W S of 15 ~ 40 parts, the Eosin B of 20 ~ 30 parts, the diiodocosin of 25 ~ 40 parts, the sodium silicate of 20 ~ 30 parts, the sodium aluminate of 20 ~ 30 parts.The preparation method of the Eosin-1 dyestuff photooxidation catalyst of the present invention, comprises the following steps: A. uses hydro-thermal method, each component is added to the water, and stirring forms each mutually homodisperse solution；B. by each mutually homodisperse solution heating described in step A, brilliant China postprecipitation, then calcine.
The Eosin-1 dyestuff photooxidation catalyst that the present invention uses is in visible light source such as LED, generation free radical is excited under electric filament lamp or sunlight, and then the Organic substance generation photooxidation reaction degraded in promotion sewage, relative to ultraviolet light, visible light source is more prone to obtain and operation, and the eosin in Eosin-1 dyestuff photooxidation catalyst is the organic dyestuff photosensitizer that a class is ripe, cheap and easily-available, this photooxidation system is with a wide range of applications.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle of the simply present invention described in above-described embodiment and description; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within the range of claimed invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (2)
1. the method for a sewage of degrading based on dyestuff photooxidation and visible light catalytic oxidation, it is characterised in that comprise the following steps:
A. by sewage suction treatment tank, being respectively uniformly dispersed mutually in sewage is made by mechanical agitation；
B. dyestuff photooxidation catalyst is added according to the metering of every liter of sewage 0.1g；
C. radiation of visible light treatment tank, stirring reaction treatment 5 hours are used；
D. stand after reaction terminates, filtered by filtering device.
The method of a kind of sewage of degrading based on dyestuff photooxidation and visible light catalytic oxidation the most according to claim 1, it is characterised in that the visible ray described in step C is 1000WALED white light or sunlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349824.9A CN105936560A (en) | 2016-05-24 | 2016-05-24 | Method for degrading sewage based on dye photooxidation and visible light catalytic oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349824.9A CN105936560A (en) | 2016-05-24 | 2016-05-24 | Method for degrading sewage based on dye photooxidation and visible light catalytic oxidation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105936560A true CN105936560A (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610349824.9A Pending CN105936560A (en) | 2016-05-24 | 2016-05-24 | Method for degrading sewage based on dye photooxidation and visible light catalytic oxidation |
Country Status (1)
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| CN (1) | CN105936560A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076394A (en) * | 2016-06-02 | 2016-11-09 | 安徽普氏生态环境工程有限公司 | A kind of zeolite-loaded dyestuff photooxidation sewage disposal catalyst Eosin 1 |
| CN115385415A (en) * | 2022-07-07 | 2022-11-25 | 江苏理工学院 | Method for degrading organic wastewater by using waste to treat waste |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289776A (en) * | 1999-09-24 | 2001-04-04 | 中国科学院化学研究所 | Composite photosensing agnet of eosin-dipyridine ruthonium and its synthesis process and application |
| CN101519256A (en) * | 2009-04-10 | 2009-09-02 | 南京大学 | Application of sodium bismuthate in rapidly degrading organic dye waste water and degradation method |
| CN103523897A (en) * | 2013-10-31 | 2014-01-22 | 哈尔滨工业大学 | Water treatment compound agent for removing organic pollutants in oxidation mode with high-activity singlet oxygen and water treatment method thereof |
-
2016
- 2016-05-24 CN CN201610349824.9A patent/CN105936560A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289776A (en) * | 1999-09-24 | 2001-04-04 | 中国科学院化学研究所 | Composite photosensing agnet of eosin-dipyridine ruthonium and its synthesis process and application |
| CN101519256A (en) * | 2009-04-10 | 2009-09-02 | 南京大学 | Application of sodium bismuthate in rapidly degrading organic dye waste water and degradation method |
| CN103523897A (en) * | 2013-10-31 | 2014-01-22 | 哈尔滨工业大学 | Water treatment compound agent for removing organic pollutants in oxidation mode with high-activity singlet oxygen and water treatment method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076394A (en) * | 2016-06-02 | 2016-11-09 | 安徽普氏生态环境工程有限公司 | A kind of zeolite-loaded dyestuff photooxidation sewage disposal catalyst Eosin 1 |
| CN115385415A (en) * | 2022-07-07 | 2022-11-25 | 江苏理工学院 | Method for degrading organic wastewater by using waste to treat waste |
| CN115385415B (en) * | 2022-07-07 | 2023-11-10 | 江苏理工学院 | Method for treating waste and degrading organic waste water by waste |
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Application publication date: 20160914 |
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