CN1100724C - Technology for treating industrial waste water - Google Patents
Technology for treating industrial waste water Download PDFInfo
- Publication number
- CN1100724C CN1100724C CN98113492A CN98113492A CN1100724C CN 1100724 C CN1100724 C CN 1100724C CN 98113492 A CN98113492 A CN 98113492A CN 98113492 A CN98113492 A CN 98113492A CN 1100724 C CN1100724 C CN 1100724C
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- China
- Prior art keywords
- waste water
- industrial waste
- technology
- treating industrial
- reaction
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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
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- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Physical Water Treatments (AREA)
Abstract
The present invention relates to an industrial wastewater treating technology, particularly to a discoloring, degrading a recycling technology for industrial wastewater by reification-actinology. Solid substances and macromolecular pollutants in the industrial wastewater are removed by a filter method or an air flotation method, photocatalysis oxidation reaction is carried out in a photocatalysis reactor, and residual organic substances are adsorbed and the catalysis reaction is further carried out in an electrochemical reactor to cause the industrial wastewater reach the requirement of the discharged or recycled water quality. The present invention has the advantages of continuous and high-efficiency treatment of the industrial wastewater, no secondary pollution, strong practicability, easy popularization and use, etc.
Description
Technical field
The present invention is a kind of process for treating industrial waste water, can be used for decolouring, degraded, reuse industrial organic waste water.
Background technology
Tellurian fresh water is essential condition human and that other biology is depended on for existence., along with population expansion, the artifact pollution water source is increasingly sharpening of industrial water pollution problem especially, the crisis that makes the mankind be faced with lack of water, cut off the water supply.Although carried out physical treatment process, film system handles method, biochemical process and chemical method, and the photooxidation method of studying recently, in the hope of solving the problem of industrial water pollution, but, because these methods exist such or such defective more or less, cause water pollution problems effectively not solved.
For example, based on the physical treatment process of the precipitator method, filtration method, foamet etc., its defective is can't treatment of water-soluble organic waste water, and the simple separation of just polluting shifts.
And for example, with UV/TiO
2, UV/H
2O
2/ TiO
2, UV/O
3Methods etc. are main photooxidation method, mainly contain that rate of oxidation is slow, efficient is lower, operation facility complexity and the more high defective of cost.
Therefore, solving water pollution problems is still asking that current development in science and technology must solve and one of carries.
Summary of the invention
Technical problem to be solved by this invention is: a kind of simple and easy to do, process for treating industrial waste water fast and effectively is provided, can solve the technical barrier of decolouring, degraded and the reuse of trade effluent, especially the sewage that sustainable processing colourity, all higher factories such as printing and dyeing, dyestuff and papermaking of concentration discharge, and non-secondary pollution.
The technical solution adopted for the present invention to solve the technical problems is: trade effluent is adopted materialization---the technology of actinic decolouring, degraded, reuse, its method is to adopt to filter or air-float technology, remove solid substance and macromolecule contaminant in the trade effluent, carry out photochemical catalytic oxidation by photochmeical reaction technology again, and adsorb remaining organism and catalytic oxidation, purified industrial waste water by electrochemical reaction technology.
Above-mentioned photochemical and electrochemical reaction can be carried out in photo catalysis reactor, electrochemical reactor respectively.
The present invention is owing to having adopted materialization---the technology for treating industrial waste water of actinic decolouring, degraded, reuse, so following major advantage is arranged:
One. sustainable processing colourity, all higher trade effluent of concentration make the trade effluent of printing and dyeing mill, dye processing plant, paper mill or other factories and miness reach colourless, tasteless, COD is extremely low, the water quality requirement of cyclically utilizing repeatedly.
They are two years old. in treating processes, can stop the generation of organic chloride, non-secondary pollution.
They are three years old. and decolored degradation speed is fast, and is effective.
They are four years old. and device structure is simple, is convenient to Operation and maintenance.Catalytic oxidant is easy to get, cheaply.
In a word, the present invention has walked out a new approach for solving water pollution problems, and is practical, promotes the use of easily.
Description of drawings
Accompanying drawing is a process flow diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in the figure, the present invention is a kind of to trade effluent employing materialization--the technology of actinic decolouring, degraded, reuse, its method is: adopt earlier and filter or air-float technology, remove solid substance and macromolecule contaminant in the trade effluent, carry out photochemical catalytic oxidation by photochmeical reaction technology again, and adsorb remaining organism and electrocatalysis oxidation reaction by electrochemical reaction technology, and trade effluent is fully purified, reach the water quality standard of discharging or reuse.In the Industrial Wastewater Treatment process, filtration or air supporting are that one-level is handled, and photochmeical reaction is a second-stage treatment, and electrochemical reaction is tertiary treatment.
Embodiment
Trade effluent is carried out can making its decolouring, degraded and reuse after one, two, three handles, and water body is fully purified.
One-level is handled: adopt that to add a small amount of ore in a kind of natural crystal or the cinder be stopping composition, at first filter and remove the part solid substance, and make and dissolve in trace in the waste water and can play the inorganic mineral salt that promotes photocatalytic oxidation; Or, when significantly reducing flocculation agent, add micro-inorganic mineral salt by air supporting method removal macromolecule contaminant.But inorganic mineral salt aluminium, zinc composite salt.
Second-stage treatment: adopt and contain under the oxygenant and active oxygen homogeneous state of available chlorine, make from the water body after the one-level processing and in photo catalysis reactor, carry out photocatalysis oxidation reaction, and come the promote the oxidation reaction by the amount of regulating light intensity, wavelength and inorganic mineral salt, therefore can adopt 2 photo catalysis reactors to carry out two step photochmeical reactions, make oxidation operation more thorough.Simultaneously, stop the generation of organic chloride.
The oxygenant that contains available chlorine can be selected NaClO, HclO, Cl for use
2The quantity of photo catalysis reactor can decide according to the requirement after waste water situation and the processing, and correspondingly its light source should adopt the light of different wave length, promptly is metal halide lamp, mercury lamp or sunlight.Pressure is normal pressure～2Kg/cm
2
Tertiary treatment: adopt electrochemical reactor to handle, promptly adsorb remaining organism by renewable sorbing material built-in in this reactor from the water body after the second-stage treatment, and by the built-in further catalyzed oxidation of electrode.Because the oxygenant that uses thoroughly decomposes, the water outlet of then leaving reactor is the anaerobic voltinism again, and oxidizing reaction is ended, thereby it is extremely low and can discharge or the requirement of reuse repeatedly to make water outlet reach colorless and odorless, COD.Simultaneously, can remove metal ion and part inorganic salt.Like this, neither, can not have side effects to bleachinging and dyeing processing to the biochemical treatment toxigenicity of municipal effluent yet.
According to the situation of trade effluent, also above-mentioned second-stage treatment, tertiary treatment technology can be exchanged, promptly electrochemical reactor carries out second-stage treatment, and photo catalysis reactor carries out tertiary treatment, and waste water is purified.
Specific embodiment:
120 tons of line waste water are dyed in the discharging of wire works, Hubei day, use technology provided by the invention that it is handled and reuse, and its process is as follows:
Dye the line Waste Water Centralized and be disposed in the wastewater equalization pond, filter as solid substances such as the end of a thread through three grades of screen cloth interceptions, and by cinder and pebbles adsorption filtration part larger molecular organics (as silicone oil); Pump into first step photo catalysis reactor by water pump again, add Cl simultaneously
2As catalytic oxidant, consumption 0.1～0.3g/L blasts air 0.1～0.5m
3/ minute, after mixing, homogeneous state carries out photocatalysis oxidation reaction, and used light source is the 2KW medium pressure mercury lamp, and predominant wavelength is 365nm, and reactor volume is 500 liters; After about 6 minutes, enter second stage photo catalysis reactor and carry out photocatalysis oxidation reaction, used light source is the 2KW metal halide lamp, and predominant wavelength is 300nm, and reactor volume is 500 liters; After about 6 minutes, the electrochemical reactor that enters volume again and be 500 liters is proceeded absorption and catalytic oxidation, and sorbing material is a granular carbon; Enter reuse pool after about 4 minutes, be used to dye post rinsing.
Above-mentioned photo catalysis reactor and electrochemical reactor can be selected the Wuhan College of Textile Industry design for use, make and applied for that the product of patent, its number of patent application are respectively 98235517.3,98235516.5.
Claims (7)
1. process for treating industrial waste water, it is characterized in that trade effluent is adopted materialization--the technology of actinic decolouring, degraded, reuse, its method is: adopt earlier and filter or air-float technology, remove solid substance and macromolecule contaminant in the trade effluent, carry out photochemical catalytic oxidation by photochmeical reaction technology again, and adsorb remaining organism and catalytic oxidation, purified industrial waste water by electrochemical reaction technology.
2. process for treating industrial waste water according to claim 1 is characterized in that described filtration or air-float technology are: adopt in a kind of natural crystal or the cinder that to add a small amount of ore be stopping composition; Filter out the part solid substance earlier, or remove macromolecule contaminant by the air supporting method, add in processed water then and can play the micro-inorganic mineral salt that promotes photochmeical reaction, inorganic mineral salt is aluminium, zinc composite salt.
3. process for treating industrial waste water according to claim 1 is characterized in that the technology of described photochmeical reaction is: adopt under the oxygenant contain available chlorine and the active oxygen homogeneous state and carry out photocatalysis oxidation reaction in photo catalysis reactor, pressure is normal pressure～2Kg/cm
2
4. process for treating industrial waste water according to claim 3 is characterized in that photo catalysis reactor has 2, carries out two step photochmeical reactions, and its light source is selected metal halide lamp, mercury lamp respectively.
5. process for treating industrial waste water according to claim 3, it is characterized in that containing effective chlorine oxides is NaClO or Cl
2Or HClO.
6. process for treating industrial waste water according to claim 1, it is characterized in that described electrochemical reaction technology is: adopt electrochemical reactor, by its built-in renewable sorbing material and electrode, adsorb remaining organism, carry out electrocatalysis oxidation reaction simultaneously, after the water body that its water outlet discharging or reuse have purified.
7. process for treating industrial waste water according to claim 6 is characterized in that renewable sorbing material is a gac.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113492A CN1100724C (en) | 1998-03-31 | 1998-03-31 | Technology for treating industrial waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113492A CN1100724C (en) | 1998-03-31 | 1998-03-31 | Technology for treating industrial waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1257042A CN1257042A (en) | 2000-06-21 |
| CN1100724C true CN1100724C (en) | 2003-02-05 |
Family
ID=5223212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98113492A Expired - Fee Related CN1100724C (en) | 1998-03-31 | 1998-03-31 | Technology for treating industrial waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1100724C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531226A (en) * | 2011-10-20 | 2012-07-04 | 常州亚环环保科技有限公司 | Method for treating acidic dye printing and dyeing wastewater |
| CN104230067B (en) * | 2013-06-08 | 2017-02-15 | 中国科学院理化技术研究所 | Processing apparatus and method for wastewater containing organic pollutants |
| CN105753260B (en) * | 2016-04-19 | 2019-02-19 | 武汉玻尔科技股份有限公司 | The processing system and treatment process of cutting waste fluid |
| CN106006920A (en) * | 2016-07-21 | 2016-10-12 | 上环保科技（杭州）有限公司 | Ultraviolet oxidative decoloring apparatus and method for printing and dyeing wastewater |
| CN108579734A (en) * | 2018-04-08 | 2018-09-28 | 南京工业大学 | A kind of sludge carbon electrochemical catalyst and its preparation and application |
| CN111072196A (en) * | 2019-12-30 | 2020-04-28 | 北京高能时代环境技术股份有限公司 | Organic pollution site sewage treatment device and treatment process |
-
1998
- 1998-03-31 CN CN98113492A patent/CN1100724C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1257042A (en) | 2000-06-21 |
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