CN108249510A - A kind of method based on light conversion material processing water body organic contamination - Google Patents
A kind of method based on light conversion material processing water body organic contamination Download PDFInfo
- Publication number
- CN108249510A CN108249510A CN201711259325.1A CN201711259325A CN108249510A CN 108249510 A CN108249510 A CN 108249510A CN 201711259325 A CN201711259325 A CN 201711259325A CN 108249510 A CN108249510 A CN 108249510A
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- China
- Prior art keywords
- light
- water body
- conversion material
- organic contamination
- energy
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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
-
- 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
-
- 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
-
- 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
Abstract
The invention discloses a kind of methods based on light conversion material processing water body organic contamination：Solar energy is converted by electric energy by photoelectric conversion material, driving electroluminescent material shines, and so as to generate the light of specific wavelength, irradiates catalysis material, and photocatalytic effect occurs, and degradable organic pollutant purifies water source.The present invention is directed to photocatalysis oxidation technique, efficiently use light source of solar energy, dexterously photovoltaic material, electroluminescent material and catalysis material are organically combined and used, realize the purpose that high efficiency of energy recycles, and all energy are all from sunlight, the efficiency of photocatalysis treatment organic contamination is improved, it is environmentally protective.
Description
Technical field
The present invention relates to a kind of methods for handling water body organic contamination, particularly relate to efficiently sharp based on light conversion material
The method that water body organic contamination is handled with solar energy source, suitable for the purified treatment of industrial wastewater and city domestic sewage.
Background technology
China's water resource quality constantly declines, and water environment is continuous worsening, and the water shortage and accident caused by pollution are continuous
Occur, plant downtime, the agriculture underproduction is not only made even to have no harvest, but also cause undesirable social influence and larger economic damage
It loses, has seriously threatened the sustainable development of society, threatened the existence of the mankind." blue montains and green waters is exactly Kingsoft Yin Shan ", energetically
Carry out sewage treatment works, build good ecological environment, strengthen the improvement of water pollution, strengthen the protection of ecological environment, be both
Meet the current needs of people's survival and development and realize the key of Sustainable Development in Future.
The method of processing water body organic contamination has Physical, ordinary chemical method, bioanalysis etc., but there are costs for these methods
Height, effect unobvious, technical difficulty are big, secondary pollution problems.
Physical is the dirt that state, colloidal attitude and super colloidal attitude can be settled with the physical principles processing such as precipitation, filtering, absorption
Object is contaminated, and is difficult to remove the organic pollution of solubilised state.Such as patent CN 881000597, using quartz sand, zeolite or haydite
For equigranular inert material as sorbing material, these sorbing materials have the treatment effect identical with activated carbon, but this method
It is unsatisfactory for the treatment effect of toxic, bio-refractory micro quantity organic pollutant.Patent CN 105366759 is utilized
X-ray or gamma-radiation, preferably rhodamine B degradation sample, but there is ray preparation difficulty, Radiation On Human body are harmful
It is insufficient.
Ordinary chemical method is by reacting decomposing organic pollutant between compound, so needing in addition to system additionization
Reagent is learned, for micro, trace contamination system, introduces new pollution sources instead.
The structure of bioanalysis, that is, model ecosystem, to the method that the biology in food chain carries out reasonable disposition, but because of it
Engineering is complicated, technical strong, it is difficult to implement.
Photocatalysis oxidation technique is the new technology for handling water body organic contamination, has huge research in field of sewage treatment
And application value.Photocatalysis oxidation technique be to generate based on oxyradical, it made to be reacted with larger molecular organics, so as to
Organic molecular structure is destroyed, until being decomposed into carbon dioxide and water.Promote photocatalytic effect, it is necessary first to specific purple
Outer light irradiation., can be directly using the ultraviolet light in sunlight from the point of view of tradition is using energy mode, but wherein contain specific purple
Outer light is less, and is vulnerable to the influence of climatic environment, causes catalytic efficiency very low；It is directly irradiated, produced using ultraviolet lamp
Raw electric energy consuming is very big, and cost is very high.
Patent CN 105084514, directly by the use of mercury lamp or ultraviolet radiator as photocatalysis light source, though it can effectively obtain institute
Ultraviolet light is needed, but capacity usage ratio is low, high energy consumption is of high cost, is unfavorable for extensive use.Patent CN 104923072, passes through gas
Liquid-solid mixture hits ultraviolet lamp, though the ultraviolet light of effective wavelength can be obtained, its effect easily can be by mixture concentration, temperature
Influence, operation it is more complicated, be also relatively difficult to apply.
It is well known that solar energy is the energy of most original, nearly all energy is all directly or indirectly from too on the earth
It is positive can, and solar energy contain it is abundant will not be exhausted, safety will not totally threaten the mankind and welding.Such as patent CN
103097284, photochemical catalyst is irradiated by conductive isolation layer using sunlight, photocatalytic effect occurs, although the device can reach
To the purpose for efficiently using solar energy, but it obtains the approach complexity of solar energy, and the sun loss of energy is larger.
Enough sunlights are converted into electric energy first with photovoltaic material and stored by the present invention, reuse electrical energy drive electricity
Electroluminescent material generates the light source of the specific wavelength needed for catalysis material, organic using the driving catalysis material degradation of this light source
Pollutant.
Photovoltaic material, electroluminescent material and catalysis material used in the method for the present invention belong to light conversion material, energy
It realizes the efficient utilization of the energy, improves the efficiency of photocatalysis treatment organic contamination, be that a kind of light conversion material that is based on handles water body
The method of organic contamination, environmental protection easy to operate.
Invention content
The purpose of the present invention is providing clean energy resource for photocatalysis oxidation technique, the energy profit of photocatalysis oxidation technique is improved
With rate, the efficiency of photocatalysis treatment organic contamination is improved.In order to realize goal of the invention, converted the present invention provides one kind based on light
The method of material processing water body organic contamination, includes the following steps：
Step 1：Solar energy is converted by electric energy by photoelectric conversion material；
Step 2：Electrical energy drive electroluminescent material generates the light of specific wavelength；
Step 3：The light irradiation catalysis material of specific wavelength, occurs photocatalytic effect, degradable organic pollutant.
Wherein, the photoelectric conversion material be photovoltaic material, including crystal silicon solar batteries, polysilicon solar cell,
Non-crystal silicon solar cell and multi-element compounds solar cell material.
The electroluminescent material is Light-emitting diode LED, main two poles included using gallium nitride GaN based semiconductors
Pipe.
The catalysis material is titanium dioxide, zinc oxide, zirconium dioxide, cadmium sulfide, including doped metal ion, non-gold
Belong to ion.
The present invention is applied to the organic pollution in processing water body.
Electroluminescent material selects light emitting diode (LED), and compared to general light emitting device, the light sent out is certain wave
Long light acts required special wavelength light closer to catalysis material.
Advantageous effect acquired by the present invention：
(1) compared with prior art, the present invention efficiently uses light source of solar energy, dexterously for photocatalysis oxidation technique
Photovoltaic material, electroluminescent material and catalysis material are organically combined and used, realizes the mesh that high efficiency of energy recycles
's；
(2) all energy are all from sunlight, improve the efficiency of photocatalysis treatment organic contamination, environmentally protective.
Description of the drawings
Fig. 1 is the degradation curve of the lower rhodamine B of different light sources irradiation of equal-wattage：(a) LED source；(b)
General ultraviolet lamp source.
Specific embodiment
The present invention will be further described with reference to embodiments, but following embodiments have no protection scope of the present invention
Clearly limit.
Embodiment 1
The water body of the rhodamine B solution simulation organic contamination of two parts of a concentration of 20mg/L of 50ml is taken respectively, is respectively put into
The catalysis material (Zinc oxide powder, ZnO) of 50mg, a light emitting diode using launch wavelength as 370nm are light source (work(
Rate is 60W) irradiation sewage, another irradiates sewage by light source (power 60W) of common uv lamp.In reaction process uniformly
RB solution is stirred, is sampled every 30min, finally measures rhodamine B concentration in solution, meter using ultra-violet and visible spectrophotometer
It calculates and to draw rhodamine B degradation rate curve graph as shown in Figure 1.
Rhodamine B in the lower solution of LED source (a) and general ultraviolet lamp source (b) irradiation of Fig. 1 equal-wattages
Degradation curve, as can be seen from the figure under the irradiation of the LED source of specific wavelength, rhodamine B concentration in solution
It is remarkably decreased.Therefore, it can effectively be improved using the light source (370nm) of catalysis material (Zinc oxide powder) specific absorption wavelength
Light-catalysed efficiency has higher efficiency of energy utilization.
Embodiment 2
The water body of the rhodamine B solution simulation organic contamination of two parts of a concentration of 20mg/L of 50ml is taken respectively, is respectively put into
Catalysis material (titanium dioxide powder, the TiO of 50mg2).By 1m2Sunlight is converged in the container equipped with rhodamine B solution and (is opened
Mouth diameter 4cm), portion irradiates 2 hours under this illumination, another first uses area 1m2Photovoltaic material (mono-crystalline silicon solar
Solar panel) constant absorption sunlight 2 hours, it converts light into as electricity, then drive the light emitting diode that launch wavelength is 380nm
(60W) irradiates.Uniform stirring rhodamine B solution in reaction process, after, it is tested using ultra-violet and visible spectrophotometer molten
Liquid remnants rhodamine B percentage compositions.
The result shows that the residual content of sunlight direct irradiation rhodamine B after 2 hours is 80.5%；Illumination in 2 hours is converted into
Electric energy, then drive lumination of light emitting diode irradiate sample in rhodamine B residual content be 68.5%.The result shows that utilize light
Converting material can effectively improve the efficiency that light-catalyzed reaction utilizes sunlight.
Embodiment 3
The methyl orange solution of a concentration of 20mg/L of a 50ml is taken to simulate the water body of organic contamination, is put into 100mg photocatalysis
Material (Zinc oxide powder, ZnO).Using area 1m2Photovoltaic material absorb sunlight, convert light into as electricity, then drive transmitting
Light emitting diode (60W) of the wavelength for 365nm, prolonged exposure water body.Methyl orange solution is at the uniform velocity stirred in reaction process, urges light
Change the pollutant that material comes into full contact with simulation, photocatalytic effect occurs, sewage of degrading.
The result shows that the degradation rate of methyl orange solution is 95.28% after 4 hours.
Embodiment is only the description of the invention, and the application realized using the thinking of the present invention belongs to the protection of the present invention
Range.
Claims (4)
1. a kind of method based on light conversion material processing water body organic contamination, includes the following steps：
Step 1：Solar energy is converted by electric energy by photoelectric conversion material；
Step 2：Electrical energy drive electroluminescent material generates the light of specific wavelength；
Step 3：The light irradiation catalysis material of specific wavelength, occurs photocatalytic effect, degradable organic pollutant.
2. a kind of method based on light conversion material processing water body organic contamination according to claim 1, it is characterised in that：Institute
Photoelectric conversion material is stated as photovoltaic material, including crystal silicon solar batteries, polysilicon solar cell, non-crystal silicon solar cell
And multi-element compounds solar cell material.
3. a kind of method based on light conversion material processing water body organic contamination according to claim 1, it is characterised in that：Institute
Electroluminescent material is stated as Light-emitting diode LED, the main diode included using gallium nitride GaN based semiconductors.
A kind of 4. method based on light conversion material processing water body organic contamination according to claim 1, it is characterised in that institute
Catalysis material is stated as titanium dioxide, zinc oxide, zirconium dioxide, cadmium sulfide, including doped metal ion, nonmetallic ion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711259325.1A CN108249510A (en) | 2017-12-04 | 2017-12-04 | A kind of method based on light conversion material processing water body organic contamination |
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| CN201711259325.1A CN108249510A (en) | 2017-12-04 | 2017-12-04 | A kind of method based on light conversion material processing water body organic contamination |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996600A (en) * | 2018-07-26 | 2018-12-14 | 中原工学院 | Utilize the method for solar battery waste material regulation creek black and odorous water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992008768A1 (en) * | 1989-09-25 | 1992-05-29 | Board Of Regents, The University Of Texas System | Materials and methods for photocatalyzing oxidation of organic compounds on water |
| CN1506155A (en) * | 2002-12-06 | 2004-06-23 | 中国科学院化学研究所 | Photocatalytic method to titania with LED as light source |
| CN2649577Y (en) * | 2003-06-27 | 2004-10-20 | 长春环能科技有限公司 | Solar photocatalytic organic waste water treating device |
| CN102603037A (en) * | 2012-04-01 | 2012-07-25 | 南京工业大学 | Organic wastewater treatment film reactor utilizing sunlight-assisted electro-catalysis |
-
2017
- 2017-12-04 CN CN201711259325.1A patent/CN108249510A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992008768A1 (en) * | 1989-09-25 | 1992-05-29 | Board Of Regents, The University Of Texas System | Materials and methods for photocatalyzing oxidation of organic compounds on water |
| CN1506155A (en) * | 2002-12-06 | 2004-06-23 | 中国科学院化学研究所 | Photocatalytic method to titania with LED as light source |
| CN2649577Y (en) * | 2003-06-27 | 2004-10-20 | 长春环能科技有限公司 | Solar photocatalytic organic waste water treating device |
| CN102603037A (en) * | 2012-04-01 | 2012-07-25 | 南京工业大学 | Organic wastewater treatment film reactor utilizing sunlight-assisted electro-catalysis |
Non-Patent Citations (2)
| Title |
|---|
| 刘华忠: "《第一性原理计算 TiO2表面》", 31 May 2017, 西安交通大学出版社 * |
| 张媛: "《低频电子电路》", 31 August 2017, 西安电子科技大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996600A (en) * | 2018-07-26 | 2018-12-14 | 中原工学院 | Utilize the method for solar battery waste material regulation creek black and odorous water |
| CN108996600B (en) * | 2018-07-26 | 2021-07-02 | 中原工学院 | Method for remedying river black and odorous water body by using solar cell waste |
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