CN102557311A - Method for continuously treating dynamic sewage through photocatalysis - Google Patents
Method for continuously treating dynamic sewage through photocatalysis Download PDFInfo
- Publication number
- CN102557311A CN102557311A CN2010106102833A CN201010610283A CN102557311A CN 102557311 A CN102557311 A CN 102557311A CN 2010106102833 A CN2010106102833 A CN 2010106102833A CN 201010610283 A CN201010610283 A CN 201010610283A CN 102557311 A CN102557311 A CN 102557311A
- Authority
- CN
- China
- Prior art keywords
- sewage
- photocatalysis
- treatment
- photocatalyst
- light source
- 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
Abstract
The invention discloses a method for continuously treating dynamic sewage through photocatalysis. The method consists of earlier-stage pretreatment and photocatalysis treatment, and particularly comprises the following steps of: (1) introducing sewage into a coarse filtration container, and filtering insoluble substances in sewage; (2) putting an early-stage treating agent into filtered sewage; (3) introducing the sewage into a fine filtering container; and (4) introducing the pretreated sewage into at least two photocatalysis reactors which are connected in series, wherein light sources and photocatalysts used in the photocatalysis reactors are the same or different. In the method, continually-flowing practical sewage is treated dynamically, and a novel solution is provided for the treatment of mindustrial waste water; a complete pretreatment part is provided, so that poisoning of the photocatalyst can be prevented; the flow speed and flow of sewage are controllable, so that the influence of the treating time of each part on sewage treatment can be better monitored; and multiple photocatalysis reactors are connected in series, so that multiple light sources and photocatalysts can be selected and matched according to different pollutants.
Description
Technical field
The present invention relates to the method field of photocatalysis treatment industrial sewage, specifically a kind of can carrying out with the photochemical catalysis lasting mobile industrial sewage is the method that main more options dynamic comprehensive is handled.
Background technology
Develop rapidly along with industrial, a large amount of refuses constantly enters nature, and existent environment of people is gone from bad to worse, and wherein the water environment pollution problem is particularly serious.Contain a large amount of organic pollutants in the waste water, wherein many is difficult for biological degradation, like phenols, and polychlorobiphenyl and polycyclic aromatic hydrocarbons etc., their bio-toxicity is bigger, is seriously threatening human beings'health and life.
Photocatalytic method is disposed of sewage because advantage such as efficient, energy-conservation becomes focus in recent years, but present known light catalytic treatment method all is that sewage is statically placed in the reactor drum, uses single light source to react.And the sewage in the actual industrial production is mobile mostly; And have the material that suspended substance and some reduce photocatalyst activities easily mostly; This makes that usual method can not the good treatment industrial sewage; Practical significance is little, has seriously restricted the application of photocatalysis technology in reality.If through method is improved, it can be handled continue mobile sewage, and realize that the combination collocation of multiple light source and catalyzer uses, and will drop into the practical application in industry blaze the trail for photocatalysis technology.
Summary of the invention
The object of the present invention is to provide a kind of photochemical catalysis that can dynamichandling continues mobile sewage, is easy to apply to continue to handle the method for dynamic sewage.
Technical scheme of the present invention is made up of pre-treatment in early stage and photocatalysis treatment two portions:
(1) sewage is introduced the coarse filtration packaging container after, filter out the insolubles in the sewage;
(2) in filterable sewage, drop into the treatment agent in early stage;
(3) then sewage is introduced the finly filtration container;
(4) pretreated sewage is introduced in two placed in-line photo catalysis reactors at least, light source and photocatalyst that photo catalysis reactor uses are identical or different.
Wherein: the light source that photocatalyst is used is ultraviolet or visible light source, and light source direct irradiation solution, solution deep are 0.4-0.6 centimetre, and the homo(io)thermism of solution system continues the concentration that bubbling air is kept dissolved oxygen at 10-40 ℃ in the photo catalysis reactor; Said photocatalyst comprises P25, doping vario-property TiO
2Or ACF loading type modification TiO
2Photocatalyst.The filtrate of coarse filtration container comprises one or more of fine sand, silica sand or molecular sieve, and the filtrate of finly filtration container comprises a kind of of gac or NACF or combination, and dropping in earlier stage, treatment agent comprises H
2O
2, Fenton reagent, flocculation agent one or more.
The present invention compares with prior art has outstanding feature and progress:
1. carry out dynamichandling to continuing the mobile actual sewage first at home, for the processing of trade effluent provides new solution.
2. have complete preprocessing part, can avoid the poisoning of photocatalyst.
3. the flow velocity of sewage and flow are controlled, can better monitor the influence of each several part treatment time to WWT.
4. photo catalysis reactor is composed in series by many, can carry out the multiple choices collocation to light source and photocatalyst according to the difference of pollutent.
5. circular treatment can directly be carried out, until reaching promising result.
Embodiment
Below in conjunction with instance the present invention is described in further detail:
Embodiment 1:
(1) with true sewage through in the container that silica sand is housed, filter out the insolubles in the sewage;
(2) in crossing filterable sewage, drop into Fenton reagent;
(3) then with sewage through in the container that gac is housed;
(4) pretreated sewage is fed in the photo catalysis reactor of two series connection, based on the kind of sewage, two photo catalysis reactors can select to use identical or different light source or photochemical catalyst;
(5) if the sewage that reaction finishes is below standard, can returns pretreatment unit and carry out circular treatment.
On the basis of such scheme, handle the application of refinery, Tianjin externally discharged waste water:
(1) flow of sewage and flow velocity are through under meter control;
(2) the light-catalyzed reaction light source is ultraviolet and visible light source, and light source direct irradiation solution, solution deep are 0.4-0.6 centimetre;
(3) homo(io)thermism of solution system continues the concentration that bubbling air is kept dissolved oxygen at 10-40 ℃ in the photo catalysis reactor.
Result: original COD is about 480mg/L,, photocatalyst select for use loading type Fe codoped TiO
2, flow velocity 4L/h reacted 3 as a child, and COD reduces to 16mg/L.
Embodiment 2:
(1) with true sewage through in the container that fine sand and molecular sieve are housed, filter out the insolubles in the sewage;
(2) in crossing filterable sewage, drop into flocculation agent;
(3) then with sewage through in the container that NACF is housed;
(4) pretreated sewage is fed in the photo catalysis reactor of two series connection, based on the kind of sewage, two photo catalysis reactors can select to use identical or different light source or photochemical catalyst;
(5) if the sewage that reaction finishes is below standard, can returns pretreatment unit and carry out circular treatment.
On the basis of such scheme, handle the application of refinery, Tianjin externally discharged waste water:
(1) flow of sewage and flow velocity are through under meter control;
(2) the light-catalyzed reaction light source is ultraviolet and visible light source, and light source direct irradiation solution, solution deep are 0.4-0.6 centimetre;
(3) homo(io)thermism of solution system continues the concentration that bubbling air is kept dissolved oxygen at 10-40 ℃ in the photo catalysis reactor.
Handle refinery, Tianjin externally discharged waste water result, original COD is about 110mg/L,, photocatalyst is selected ACF loading type modification TiO for use
2, flow velocity 4L/h reacted 3 as a child, and COD reduces to 4mg/L.
Claims (3)
1. the lasting method of handling dynamic sewage of photochemical catalysis is made up of pre-treatment and photocatalysis treatment two portions, it is characterized in that:
(1) sewage is introduced the coarse filtration packaging container after, filter out the insolubles in the sewage;
(2) in filterable sewage, drop into the treatment agent in early stage;
(3) then sewage is introduced the finly filtration container;
(4) pretreated sewage is introduced in two placed in-line photo catalysis reactors at least, light source and photocatalyst that photo catalysis reactor uses are identical or different.
2. photochemical catalysis according to claim 1 continues to handle the method for dynamic sewage; It is characterized in that: the light source that photocatalyst is used is ultraviolet or visible light source; Light source direct irradiation solution; Solution deep is 0.4-0.6 centimetre, and the homo(io)thermism of solution system continues the concentration that bubbling air is kept dissolved oxygen at 10-40 ℃ in the photo catalysis reactor; Said photocatalyst comprises P25, doping vario-property TiO
2Or ACF loading type modification TiO
2Photocatalyst.
3. photochemical catalysis according to claim 1 and 2 continues to handle the method for dynamic sewage; It is characterized in that: the filtrate of coarse filtration container comprises one or more of fine sand, silica sand or molecular sieve; The filtrate of finly filtration container comprises a kind of of gac or NACF or combination, and dropping in earlier stage, treatment agent comprises H
2O
2, Fenton reagent, flocculation agent one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106102833A CN102557311A (en) | 2010-12-29 | 2010-12-29 | Method for continuously treating dynamic sewage through photocatalysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106102833A CN102557311A (en) | 2010-12-29 | 2010-12-29 | Method for continuously treating dynamic sewage through photocatalysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102557311A true CN102557311A (en) | 2012-07-11 |
Family
ID=46404132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106102833A Pending CN102557311A (en) | 2010-12-29 | 2010-12-29 | Method for continuously treating dynamic sewage through photocatalysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102557311A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739129A (en) * | 2013-12-13 | 2014-04-23 | 云南中烟昆船瑞升科技有限公司 | Method for strong oxidation treatment of high-concentration waste water |
| CN104310654A (en) * | 2014-11-02 | 2015-01-28 | 刘四 | Domestic wastewater purification method based on Fenton oxidization |
| CN105565428A (en) * | 2014-10-16 | 2016-05-11 | 冯冠华 | Bi-zone and bi-membrane catalytic reactor with unilateral water coming in and out |
| CN107540152A (en) * | 2016-06-29 | 2018-01-05 | 宝山钢铁股份有限公司 | A kind of system and device and processing method for improving finishing liquid wastewater biodegradability |
| CN109110990A (en) * | 2018-08-31 | 2019-01-01 | 苏州新工环境工程技术有限公司 | Sewage disposal system and its processing method based on Fenton technology |
| CN111217419A (en) * | 2018-11-27 | 2020-06-02 | 中国石油化工股份有限公司 | Treatment device and treatment method for N-methyldiethanolamine wastewater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61111190A (en) * | 1984-11-07 | 1986-05-29 | Japan Organo Co Ltd | Treatment of feed water treating device |
| CN1220240A (en) * | 1998-12-07 | 1999-06-23 | 南京化工大学 | Integrated method for photocatalysis and membrane separation |
| CN1257838A (en) * | 1998-12-18 | 2000-06-28 | 中国科学院感光化学研究所 | Continuously photocatalytic process and equipment for purifying waste water and drinking water containing organic contaminant |
| CN101362834A (en) * | 2008-09-28 | 2009-02-11 | 长安大学 | Synergistic degradation method of sodium carboxymethylcellulose |
| CN101565219A (en) * | 2008-04-25 | 2009-10-28 | 北京化工大学 | Process for photocatalytic treatment of industrial waste water |
-
2010
- 2010-12-29 CN CN2010106102833A patent/CN102557311A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61111190A (en) * | 1984-11-07 | 1986-05-29 | Japan Organo Co Ltd | Treatment of feed water treating device |
| CN1220240A (en) * | 1998-12-07 | 1999-06-23 | 南京化工大学 | Integrated method for photocatalysis and membrane separation |
| CN1257838A (en) * | 1998-12-18 | 2000-06-28 | 中国科学院感光化学研究所 | Continuously photocatalytic process and equipment for purifying waste water and drinking water containing organic contaminant |
| CN101565219A (en) * | 2008-04-25 | 2009-10-28 | 北京化工大学 | Process for photocatalytic treatment of industrial waste water |
| CN101362834A (en) * | 2008-09-28 | 2009-02-11 | 长安大学 | Synergistic degradation method of sodium carboxymethylcellulose |
Non-Patent Citations (1)
| Title |
|---|
| 王锋 等: "Fenton试剂助TiO2/ACF光催化降解TNT废水的研究", 《杭州化工》, vol. 39, no. 3, 30 September 2009 (2009-09-30), pages 23 - 26 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739129A (en) * | 2013-12-13 | 2014-04-23 | 云南中烟昆船瑞升科技有限公司 | Method for strong oxidation treatment of high-concentration waste water |
| CN105565428A (en) * | 2014-10-16 | 2016-05-11 | 冯冠华 | Bi-zone and bi-membrane catalytic reactor with unilateral water coming in and out |
| CN104310654A (en) * | 2014-11-02 | 2015-01-28 | 刘四 | Domestic wastewater purification method based on Fenton oxidization |
| CN107540152A (en) * | 2016-06-29 | 2018-01-05 | 宝山钢铁股份有限公司 | A kind of system and device and processing method for improving finishing liquid wastewater biodegradability |
| CN107540152B (en) * | 2016-06-29 | 2020-12-22 | 宝山钢铁股份有限公司 | System device and treatment method for improving biodegradability of finishing liquid wastewater |
| CN109110990A (en) * | 2018-08-31 | 2019-01-01 | 苏州新工环境工程技术有限公司 | Sewage disposal system and its processing method based on Fenton technology |
| CN111217419A (en) * | 2018-11-27 | 2020-06-02 | 中国石油化工股份有限公司 | Treatment device and treatment method for N-methyldiethanolamine wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Rekhate et al. | Recent advances in ozone-based advanced oxidation processes for treatment of wastewater-A review | |
| Khamparia et al. | Adsorption in combination with ozonation for the treatment of textile waste water: a critical review | |
| Moussavi et al. | Preparation and characterization of a biochar from pistachio hull biomass and its catalytic potential for ozonation of water recalcitrant contaminants | |
| Faramarzpour et al. | Photocatalytic degradation of furfural by titania nanoparticles in a floating-bed photoreactor | |
| Damodar et al. | Performance of an integrated membrane photocatalytic reactor for the removal of Reactive Black 5 | |
| Patsios et al. | A hybrid photocatalysis–ultrafiltration continuous process for humic acids degradation | |
| CN102557311A (en) | Method for continuously treating dynamic sewage through photocatalysis | |
| Dutta et al. | Kinetic study of adsorption and photo-decolorization of Reactive Red 198 on TiO2 surface | |
| Barreca et al. | Neutral solar photo-Fenton degradation of 4-nitrophenol on iron-enriched hybrid montmorillonite-alginate beads (Fe-MABs) | |
| CN102040312B (en) | Method for treating reverse osmosis concentrated water | |
| Asgari et al. | Catalytic ozonation of industrial textile wastewater using modified C-doped MgO eggshell membrane powder | |
| EP2319619A1 (en) | Method and an apparatus for regeneration of an adsorbent | |
| Moussavi et al. | Investigating the potential of carbon activated with NH4Cl for catalyzing the degradation and mineralization of antibiotics in ozonation process | |
| Chys et al. | UV/H2O2, O3 and (photo‐) Fenton as treatment prior to granular activated carbon filtration of biologically stabilized landfill leachate | |
| Abdel-Maksoud et al. | Sand supported TiO2 photocatalyst in a tray photo-reactor for the removal of emerging contaminants in wastewater | |
| CN102126803A (en) | Process for catalytic oxidation-compound flocculation integrated treatment of comprehensive waste water | |
| Farzana et al. | Photo-decolorization and detoxification of toxic dyes using titanium dioxide impregnated chitosan beads | |
| Yabalak et al. | Catalytic efficiency of raw and hydrolyzed eggshell in the oxidation of crystal violet and dye bathing wastewater by thermally activated peroxide oxidation method | |
| CN104496119A (en) | Deep treatment method and device of coking wastewater | |
| Vosoughi et al. | High efficient treatment of the petrochemical phenolic effluent using spent catalyst: Experimental and optimization | |
| Martins et al. | Low-cost catalysts to enhance ozone action on the depuration of olive mill wastewaters | |
| Esteves et al. | Wastewater treatment by heterogeneous fenton-like processes in continuous reactors | |
| Nagda et al. | Bioremediation of industrial effluents: A synergistic approach | |
| Wang et al. | Split dosing of H2O2 for enhancing recalcitrant organics removal from landfill leachate in the Fe0/H2O2 process: Degradation efficiency and mechanism | |
| Mohapatra et al. | Hybrid fenton oxidation processes with packed bed or fluidized bed reactor for the treatment of organic pollutants in wastewater: A review |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120711 |