CN1050532A - Treating phenolic aldehyde bearing waste water by photocatalysis - Google Patents
Treating phenolic aldehyde bearing waste water by photocatalysis Download PDFInfo
- Publication number
- CN1050532A CN1050532A CN90108252A CN90108252A CN1050532A CN 1050532 A CN1050532 A CN 1050532A CN 90108252 A CN90108252 A CN 90108252A CN 90108252 A CN90108252 A CN 90108252A CN 1050532 A CN1050532 A CN 1050532A
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- CN
- China
- Prior art keywords
- waste water
- phenol
- phenolic aldehyde
- photocatalysis
- aldehyde
- 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.)
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Classifications
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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 belongs to the new technology of utilizing the photocatalytic method Phenol-Containing Wastewater Treatment.
The characteristics of this method are: 1. can handle the phenolic wastewater of higher concentration, 2. not only handle resol and deviate from water, also can handle other phenolic wastewater.3. degradation speed is fast, non-secondary pollution.4. catalyzer is easy to get, and is cheap, recyclable use repeatedly, and working cost is low.5. equipment is simple, and less investment is effective.
Description
The present invention is a new technology of utilizing treating phenolic aldehyde bearing waste water by photocatalysis.
When producing resol, from then on resin is deviate to contain phenol in the water and is approximately 3.5～4.0%, the High-concentration Phenolic Aldehyde waste water of aldehyde 2.0～2.5%.The existing treatment process of this waste water is had combustion method, and this method can be lost a large amount of phenol and aldehyde.By urea-formaldehyde-phenolic condensates extraction phenol, method is very complicated.Remove phenolic aldehyde with the Losantin oxidation style after the direct recovery resin that has.Contain a large amount of chlorions in the waste water that discharge this moment, cause the secondary pollution environment.The photochemical method that Soviet Union scholar proposes, that can only handle lower concentration contains phenol (50mg/L) waste water.We utilize treating phenolic aldehyde bearing waste water by photocatalysis, through experiment achieving success repeatedly, thereby finish this invention.
The present invention deviates to also have a large amount of phenolic aldehyde in the water when producing resol, this water is further aggregated into resol reclaim.Through the waste water behind the recovery resin, the photoactivation method is removed remaining phenolic aldehyde, makes water quality reach the requirement (0.5～1.0mg/L) of emission standard; Discharge.
Characteristics of the present invention:
1. can handle and contain the higher waste water of phenolic aldehyde concentration (1000～1500mg/L).2. can use repeatedly after the catalyst recovery.3. speed of response is fast, non-secondary pollution.4. equipment is simple, less investment.5. working cost is low, and is effective.6. but other phenolic wastewater of extension process.
Concrete grammar is as follows:
The first step, resol is reclaimed in polymerization.
Phenolic aldehyde content in the analysis water-like can add some aldehyde less if the aldehyde amount is on the low side in the waste water, makes phenol in the water: aldehyde=1: 1 adds the dense Hcl of 10～15ml in 1 liter of waste water afterwards for well, mixes, and keeps 80～90 ℃ of temperature, polymerization 4～5 hours.Naturally cooling after the polymerization.Every liter of waste water obtains wet resin 35～40g.In the waste water behind the recovery resin, also contain has the about 1500mg/L of phenol more, and aldehyde 1000mg/L, this waste water must carry out for second step to be handled.
The second step photocatalytic method Phenol-Containing Wastewater Treatment
After will reclaiming resin, the waste water of separating is put into the degraded groove, adds catalyzer TiO
2: MnO
2Be every liter waste water add TiO at=1: 1
210g, MnO
210g heats 60 ° with rayed (UV-light, sunlight etc.), stirs blowing air, measures waste water through certain hour (1～2 hour) and contains and stop when phenol reaches emission standard, (this moment phenol, the already oxidised CO that resolves into of aldehyde
2And H
2O), add the ammoniacal liquor catalyzer, catalyzer is reclaimed in centrifugation, and discharge of wastewater falls.Can continue after the catalyst recovery to use.
Example 1: adopt the waste water of chemical plant, Jilin Province with acid system production resol, get 1 liter, enriching Hcl 10ml stirs, and refluxes in 80～90 ℃ water-bath 4～5 hours, obtains wet resin 33g, and this moment, waste water contained phenol 1178ml/L, aldehyde 330mg/L.
Get this waste water and add TiO for 1 liter
210g and MnO
210g, illumination, aeration agitation, 60 ± 5 ℃ of controlled temperature, through two hours, phenol reached emission standard.
Example 2: adopt the waste water of Jilin Province factory alkaline process production resol identical, obtain same result with example 1 treatment process.
Claims (2)
1, the invention belongs to and utilize the photocatalytic method Phenol-Containing Wastewater Treatment.It is characterized in that making phenol: aldehyde=1: 1, every liter of 10～15ml of enriching Hcl, resol is reclaimed in 80～90 ℃ of polymerizations of temperature 5 hours.After separating adds catalyzer (TiO in the waste water
2, MnO
2) heat 60 ° ± 5 ℃ and stir blowing airs, illumination (UV-light or sunlight), (0.5～1.0mg/L) stops very the time when reaching emission standard.Add ammoniacal liquor and reclaim catalyzer, discharge of wastewater.
2, the right 1 described TiO that it is characterized in that
2: MnO
2=1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90108252A CN1030983C (en) | 1990-10-05 | 1990-10-05 | Treating phenolic aldehyde bearing waste water by photocatalysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90108252A CN1030983C (en) | 1990-10-05 | 1990-10-05 | Treating phenolic aldehyde bearing waste water by photocatalysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1050532A true CN1050532A (en) | 1991-04-10 |
| CN1030983C CN1030983C (en) | 1996-02-14 |
Family
ID=4880910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90108252A Expired - Fee Related CN1030983C (en) | 1990-10-05 | 1990-10-05 | Treating phenolic aldehyde bearing waste water by photocatalysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1030983C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305561C (en) * | 2004-12-08 | 2007-03-21 | 中国科学院上海硅酸盐研究所 | Photocatalyst for treating waste water containing phenol and its preparation method |
| CN102627371A (en) * | 2012-04-14 | 2012-08-08 | 东北石油大学 | Method for ultraviolet-assisted Fenton-like oxidation and degradation of methanol wastewater with low concentration |
| CN102686311A (en) * | 2009-12-30 | 2012-09-19 | 希腊/福斯研究与技术基金会 | Method of production of photocatalytic powder comprising titanium dioxide and manganese dioxide active under ultraviolet and visible light |
| CN108623089A (en) * | 2018-03-29 | 2018-10-09 | 新冶高科技集团有限公司 | Wastewater treatment equipment and the method for handling phenolic resin wastewater using the device |
| CN109928582A (en) * | 2019-04-18 | 2019-06-25 | 南京清元景和环境科技有限公司 | Biological, the chemically composited processing method of formaldehyde-containing wastewater |
-
1990
- 1990-10-05 CN CN90108252A patent/CN1030983C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305561C (en) * | 2004-12-08 | 2007-03-21 | 中国科学院上海硅酸盐研究所 | Photocatalyst for treating waste water containing phenol and its preparation method |
| CN102686311A (en) * | 2009-12-30 | 2012-09-19 | 希腊/福斯研究与技术基金会 | Method of production of photocatalytic powder comprising titanium dioxide and manganese dioxide active under ultraviolet and visible light |
| CN102686311B (en) * | 2009-12-30 | 2015-01-28 | 希腊/福斯研究与技术基金会 | Method of production of photocatalytic powder comprising titanium dioxide and manganese dioxide active under ultraviolet and visible light |
| CN102627371A (en) * | 2012-04-14 | 2012-08-08 | 东北石油大学 | Method for ultraviolet-assisted Fenton-like oxidation and degradation of methanol wastewater with low concentration |
| CN108623089A (en) * | 2018-03-29 | 2018-10-09 | 新冶高科技集团有限公司 | Wastewater treatment equipment and the method for handling phenolic resin wastewater using the device |
| CN109928582A (en) * | 2019-04-18 | 2019-06-25 | 南京清元景和环境科技有限公司 | Biological, the chemically composited processing method of formaldehyde-containing wastewater |
| CN109928582B (en) * | 2019-04-18 | 2021-11-19 | 南京清元景和环境科技有限公司 | Biological and chemical composite treatment method for formaldehyde-containing wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1030983C (en) | 1996-02-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |