CN101717170A - Method for treating printing and dyeing wastewater by combing electron beam irradiation and biochemistry - Google Patents
Method for treating printing and dyeing wastewater by combing electron beam irradiation and biochemistry Download PDFInfo
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- CN101717170A CN101717170A CN200910198206A CN200910198206A CN101717170A CN 101717170 A CN101717170 A CN 101717170A CN 200910198206 A CN200910198206 A CN 200910198206A CN 200910198206 A CN200910198206 A CN 200910198206A CN 101717170 A CN101717170 A CN 101717170A
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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
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- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention relates to a method for treating printing and dyeing wastewater by combing electron beam irradiation and biochemistry, and belongs to the technical field of wastewater treatment. The method comprises the following steps: performing irradiation treatment on the printing and dyeing wastewater containing anthraquinone organic substances by using electron beams generated by an electron accelerator to ensure that most of the organic substances of the wastewater are degraded, wherein the irradiation dose rate is 12 to 165 KGy/S; and allowing the wastewater to enter a biochemical reaction system device for further advanced treatment so as to ensure that the wastewater reaches national allowable discharge standard.
Description
Technical field
The present invention relates to the method for a kind of electron beam irradiation and biochemical combination treatment dyeing waste water, belong to technical field of waste water processing.
Background technology
Along with persistence organic pollutant ((POPs) and staying quality poison material (PTS) the input more concerns of countries in the world to entering the difficult degradation in the environment, the new technology of developing a kind of toxic organic compound of degrading just becomes more and more urgent, is exactly to produce under these circumstances radiation application in the processing of this type of material.
The gamma-rays that radiates during the radioactive atom decay has great penetrating force, and industrial modal irradiation source is radionuclide 60Co and 137Cs, is used for the processing of water and mud.And the controllability of high-power electron beam is good, and speed of reaction is fast, and penetration power is strong, has realized industrial applications at home and abroad.There are some researches show that high-power electron beam and gamma-rays there is no remarkable difference to the effect of compound in the water body.High-power electron beam and gamma-rays can both produce the similar activity intermediate, and major different is that the gamma-ray dosage release rate in cobalt source is relatively low.The research that utilizes radiotechnology that waste water is handled has been carried out the long period abroad, studies show that gamma-rays and electron beam to containing the waste water of heavy metal, and phenolic wastewater, cyanide wastewater, industry contain anthracene, the quinone waste water from dyestuff all has the good treatment effect.Relevant report is less both at home and abroad at present to be applied to the processing of water body for gamma-rays and electron beam irradiation.
It is basic identical that high-power electron beam and gamma-rays enter the reaction that water body takes place, after high-power electron beam or gamma-rays enter water body, 10
-7With water molecules following reaction taking place in second generates various active substances:
H
2O＝＞e
aq -(2.6)+H·(0.55)+OH·(2.7)+H
2(0.45)+H
2O
2(0.71)+H
3O
+(2.6)
During the energy of the every absorption of the numeral in bracket 100eV, the quantity of the various free radicals that produce in the water.
Irradiation is exactly that the moment and the water molecule reaction that utilize high-energy electron or gamma-rays to enter water body produce active free radical e
Aq -, OH, H etc. handle waste water.These free radicals e
Aq -, OH, H are the high reactivity materials, can be rapidly with water body in organism react, thereby reach the organic purpose of Degradation and Transformation.Because the e that reaction produces
Aq -Suitable substantially with OH quantity, also can be reductive action so the removal of pollutent can be an oxygenizement, this depends primarily on concentration, chemical structure and the condition of water quality of pollutent.OH is a typical oxidizing agents, its standard oxidation also original position up to 2.80V, be only second to fluorine (2.87V), it is the present known the strongest oxygenant that can in water treatment, use, it is as the intermediate product of reaction, can bring out the chain reaction of back, and in OH and the water most organic reaction velocity constants all 10
8～10
10M
-1S
-1Order of magnitude scope mainly is addition and proposes H-H reaction with the organism reaction.Addition mainly is and the organism that contains unsaturated link(age), as contains the organism of ethylene linkage and aromatic ring.Proposing H-H reaction mainly is and saturated fatty compounds of group and the reaction of many unsaturated compounds, as aldehydes and ketone organism.
Summary of the invention
The method that the purpose of this invention is to provide a kind of electron beam irradiation and biochemical combination treatment dyeing waste water makes main anthracene, the degraded of quinone organic substance that contains in the dyeing waste water or reduces its concentration, to reach discharging standards.
The method of a kind of electron beam irradiation of the present invention and biochemical combination treatment dyeing waste water is characterized in that having following process and step:
A. at first will deposit in the equalizing tank, and carry out the pH value and regulate, and make its pH value reach 8～10 from the organic dyeing waste water of anthraquinone that mainly contains of textile mills; Then this waste water is positioned under the electron beam irradiation that tradition rumbatron commonly used produces and handles; Be that the gamma-rays that radionuclide 60Co or 137Cs emit out is handled perhaps with irradiation source; The energy of the electron beam that adopts during electron beam irradiation is 0.8～2.0Mev; The electron beam flow is 10～12mA, and radiation dose rate is 12～16KGy/S;
B. with the precipitation of above-mentioned waste water after radiation treatment, the throw out taking-up is dealt with in addition through certain hour;
C. then the waste water after the precipitation process is further handled through advanced treatment apparatus again; This advanced treatment apparatus is tradition Biochemistry Reaction System device commonly used; The above-mentioned organic waste water of anthraquinone that contains is contained in the equalizing tank, carrying out the bottom after regulating is provided with in the biological contact oxidation pond of blower fan with blast aeration, enter coagulative precipitation tank again, set up the flocculant concentration system at this settling tank, to be pumped to described settling tank after flocculation agent and the tap water mixing, the precipitating sludge that is produced is then discharged by sludge pump; Waste water after treatment enters clean water basin then, by lift pump it is entered city planting ductwork at this waste water; Waste water after treatment can reach discharging standards.
The advantage of the inventive method is: the dyeing waste water that contains anthraquinone substance is handled through electron beam irradiation earlier, can make the thing degraded that organises of its most of anthraquinone, and the biodegradability of waste water is improved, and then the biochemical reaction that helps next step is handled; Irradiation combines with biochemical treatment, has not only simplified technology, and can obtain good degradation effect.
Description of drawings
Fig. 1 is the irradiation process synoptic diagram of the used tradition of the present invention rumbatron commonly used.Wherein digital code is represented: 1-irradiation window, 2-irradiation storehouse.
Fig. 2 is the treating processes synoptic diagram of Biochemistry Reaction System device for the advanced treatment apparatus among the present invention.
COD value variation relation graphic representation in radiation dose rate and waste water when Fig. 3 handles for electron beam irradiation among the present invention.
Embodiment
After now specific embodiments of the invention being described in.
Embodiment
Paper waste treating processes in the present embodiment is referring to Fig. 1 and Fig. 2.Fig. 1 is the irradiation process synoptic diagram of tradition rumbatron commonly used; Digital code is represented among the figure: 1 is the irradiation window, and 2 is the irradiation storehouse.Fig. 2 is the treating processes synoptic diagram of tradition Biochemistry Reaction System device commonly used.
The operating process and the step of present embodiment are as follows:
(1), at first will deposit in the equalizing tank, carry out the adjusting of pH value, and make its pH value reach 8～10 from the organic dyeing waste water of anthraquinone that contains of the permanent safe woollen mill in Shanghai; Then this waste water is positioned under the electron beam irradiation that tradition rumbatron commonly used produces and handles; The irradiation energy of electron beam is 0.8Mev, and electronic beam current is 10mA, and radiation dose rate is 16KGy/S;
(2), with above-mentioned waste water after radiation treatment through the precipitation of certain hour, throw out taken out deal with in addition;
(3), then the waste water after precipitation process is further handled through advanced treatment apparatus again; This advanced treatment apparatus is tradition Biochemistry Reaction System device commonly used; The above-mentioned organic waste water of anthraquinone that contains is contained in the equalizing tank, carrying out the bottom after regulating is provided with in the biological contact oxidation pond of blower fan with blast aeration, enter coagulative precipitation tank again, set up the flocculant concentration system at this settling tank, to be pumped to described settling tank after flocculation agent and the tap water mixing, the precipitating sludge that is produced is then discharged by sludge pump; Waste water after treatment enters clean water basin then, by lift pump it is entered city planting ductwork at this waste water; Waste water after treatment can reach discharging standards.
Referring to Fig. 3, COD value graph of relation over time in radiation dose rate and waste water when Fig. 3 handles for electron beam irradiation.The reduction value of COD and the corresponding relation of irradiation dose in the waste water as we know from the figure, promptly irradiation dose is higher, and the degradation rate of waste water is also bigger.Express at this, radiation dose rate is at 16KGy/S, and the printing that contains anthraquinone is dyed the degradation effect of waste water for best.
When the accelerated electron energy is 0.8Mev, electronic beam current intensity is 10mA, and the treatment time reaches 30 seconds, and when radiation dose rate was 16KGy/S, waste water was after precipitation process, and COD removal can reach 57%.
Claims (1)
1. the method for an electron beam irradiation and biochemical combination treatment dyeing waste water is characterized in that having following process and step:
A. at first will deposit in the equalizing tank, and carry out the pH value and regulate, and make its pH value reach 8～10 from the organic dyeing waste water of anthraquinone that mainly contains of textile mills; Then this waste water is positioned under the electron beam irradiation that tradition rumbatron commonly used produces and handles; Be that the gamma-rays that radionuclide 60Co or 137Cs emit out is handled perhaps with irradiation source; The energy of the electron beam that adopts during electron beam irradiation is 0.8～2.0Mev; The electron beam flow is 10～12mA, and radiation dose rate is 12～16KGy/S;
B. with the precipitation of above-mentioned waste water after radiation treatment, the throw out taking-up is dealt with in addition through certain hour;
C. then the waste water after the precipitation process is further handled through advanced treatment apparatus again; This advanced treatment apparatus is tradition Biochemistry Reaction System device commonly used; The above-mentioned organic waste water of anthraquinone that contains is contained in the equalizing tank, carrying out the bottom after regulating is provided with in the biological contact oxidation pond of blower fan with blast aeration, enter coagulative precipitation tank again, set up the flocculant concentration system at this settling tank, to be pumped to described settling tank after flocculation agent and the tap water mixing, the precipitating sludge that is produced is then discharged by sludge pump; Waste water after treatment enters clean water basin then, by lift pump it is entered city planting ductwork at this waste water; Waste water after treatment can reach discharging standards.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910198206A CN101717170A (en) | 2009-11-03 | 2009-11-03 | Method for treating printing and dyeing wastewater by combing electron beam irradiation and biochemistry |
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| CN200910198206A CN101717170A (en) | 2009-11-03 | 2009-11-03 | Method for treating printing and dyeing wastewater by combing electron beam irradiation and biochemistry |
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| CN101717170A true CN101717170A (en) | 2010-06-02 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130127A (en) * | 2015-09-13 | 2015-12-09 | 常州大学 | Printing and dyeing wastewater treatment device |
| CN105366759A (en) * | 2015-12-16 | 2016-03-02 | 中华人民共和国陕西出入境检验检疫局 | Degrading method for rhodamine B |
| CN105561517A (en) * | 2015-12-16 | 2016-05-11 | 中华人民共和国陕西出入境检验检疫局 | Degradation method of Sudan IV |
| CN108658331A (en) * | 2018-05-21 | 2018-10-16 | 浙江省能源与核技术应用研究院 | A kind of method of the physicochemical techniques processing dyeing waste water of electron beam irradiation combined optimization |
| CN110252373A (en) * | 2019-06-14 | 2019-09-20 | 湖北中和普汇环保股份有限公司 | A kind of magnetism Co-V/C3N3The preparation method and application of complex carrier particle |
| CN110776176A (en) * | 2019-11-21 | 2020-02-11 | 柏威达(南京)环境科技有限公司 | Method for treating colored dye wastewater generated by printing and dyeing technology |
| CN112851041A (en) * | 2021-02-25 | 2021-05-28 | 清华大学 | Process for treating printing and dyeing wastewater by biological treatment and coupled irradiation |
| CN113415948A (en) * | 2021-06-16 | 2021-09-21 | 清华大学 | Method for continuously treating actual printing and dyeing wastewater by using irradiation coupling coagulating sedimentation means |
-
2009
- 2009-11-03 CN CN200910198206A patent/CN101717170A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130127A (en) * | 2015-09-13 | 2015-12-09 | 常州大学 | Printing and dyeing wastewater treatment device |
| CN105366759A (en) * | 2015-12-16 | 2016-03-02 | 中华人民共和国陕西出入境检验检疫局 | Degrading method for rhodamine B |
| CN105561517A (en) * | 2015-12-16 | 2016-05-11 | 中华人民共和国陕西出入境检验检疫局 | Degradation method of Sudan IV |
| CN108658331A (en) * | 2018-05-21 | 2018-10-16 | 浙江省能源与核技术应用研究院 | A kind of method of the physicochemical techniques processing dyeing waste water of electron beam irradiation combined optimization |
| CN108658331B (en) * | 2018-05-21 | 2021-06-25 | 浙江省能源与核技术应用研究院 | Method for treating printing and dyeing wastewater by electron beam irradiation combined optimization physicochemical process |
| CN110252373A (en) * | 2019-06-14 | 2019-09-20 | 湖北中和普汇环保股份有限公司 | A kind of magnetism Co-V/C3N3The preparation method and application of complex carrier particle |
| CN110776176A (en) * | 2019-11-21 | 2020-02-11 | 柏威达(南京)环境科技有限公司 | Method for treating colored dye wastewater generated by printing and dyeing technology |
| CN112851041A (en) * | 2021-02-25 | 2021-05-28 | 清华大学 | Process for treating printing and dyeing wastewater by biological treatment and coupled irradiation |
| CN113415948A (en) * | 2021-06-16 | 2021-09-21 | 清华大学 | Method for continuously treating actual printing and dyeing wastewater by using irradiation coupling coagulating sedimentation means |
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