CN101417835A - Ozone/electrochemistry integrated processing apparatus and method for organic wastewater - Google Patents
Ozone/electrochemistry integrated processing apparatus and method for organic wastewater Download PDFInfo
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- CN101417835A CN101417835A CNA2008101223887A CN200810122388A CN101417835A CN 101417835 A CN101417835 A CN 101417835A CN A2008101223887 A CNA2008101223887 A CN A2008101223887A CN 200810122388 A CN200810122388 A CN 200810122388A CN 101417835 A CN101417835 A CN 101417835A
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- waste water
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000002351 wastewater Substances 0.000 title claims abstract description 14
- 230000005518 electrochemistry Effects 0.000 title claims abstract description 12
- 238000012545 processing Methods 0.000 title claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000005273 aeration Methods 0.000 claims abstract description 5
- 239000010815 organic waste Substances 0.000 claims description 13
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 7
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- -1 platinum Activated Carbon Fiber Chemical class 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 abstract description 17
- 238000007254 oxidation reaction Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 11
- 239000007788 liquid Substances 0.000 abstract description 7
- 231100000614 poison Toxicity 0.000 abstract description 3
- 230000007096 poisonous effect Effects 0.000 abstract description 3
- 239000000356 contaminant Substances 0.000 abstract 2
- 230000000593 degrading effect Effects 0.000 abstract 1
- WXNZTHHGJRFXKQ-UHFFFAOYSA-N 4-chlorophenol Chemical compound OC1=CC=C(Cl)C=C1 WXNZTHHGJRFXKQ-UHFFFAOYSA-N 0.000 description 7
- 230000015556 catabolic process Effects 0.000 description 7
- 238000006731 degradation reaction Methods 0.000 description 7
- 238000006056 electrooxidation reaction Methods 0.000 description 7
- 229940090668 parachlorophenol Drugs 0.000 description 7
- 239000002957 persistent organic pollutant Substances 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000033558 biomineral tissue development Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Water Treatment By Electricity Or Magnetism (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to an ozone/electrochemistry integral treatment device for organic wastewater and a method thereof. The device comprises a DC power supply and a reactor arranged in a constant-temperature water bath, wherein the bottom of the reactor is provided with an aeration device which is connected with an ozone generator, and the reactor is internally provided with an anode and a cathode which are connected with the DC power supply. The invention combines the ozone oxidation method with the electrochemical technology to form a novel efficient electrochemical advanced oxidation technology, which can reduce the service cost and realize the purpose of quickly degrading organic contaminants. The device has the advantages of compact and simple structure, simple operation and high treatment efficiency, which can be used for treating high concentration, hard degradable, poisonous and harmful liquid organic contaminants.
Description
Technical field
The present invention relates to the ozone/electrochemistry integrated processing apparatus and the method for organic waste water, belong to environment and water-treatment technology field.
Background technology
In recent years, China recurs great environmental pollution incident, directly threatens local safe drinking water, and brings for people's productive life to have a strong impact on, even causes international environment dispute and reparations.To domestic and international substantial pollution environment incident analysis as can be known, its pollutent accounts for more than 60% based on liquid state, is the main object of emergency processing.Therefore, launching the research of its fast processing disposal technology at the typical liquid pollutent is the most important thing in the major pollution incident emergence technology.
Simultaneously, the processing of hardly degraded organic substance is one of focus of environment and chemical field research, also is national economic development problem demanding prompt solution.The waste water of industries such as pharmacy, dyestuff, chemical industry discharging contains the difficult biochemical organism of high density usually, characteristics such as this type organic has that kind is many, complicated component, COD (chemical oxygen demand (COD)) concentration height, biodegradability are poor, poisonous and harmful, conventional treatment method is difficult to obtain satisfied treatment effect, becomes big technological difficulties that face in the wastewater treatment of present China.At present, materialization-biochemical coupling technique is still main method and the technology that solves this class waste water, its key is by the efficient oxidation pre-treatment, and Persistent organic pollutants are converted into the low molecule organic matter of low toxicity, readily biodegradable, is beneficial to follow-up biochemical treating processes.Wherein high-level oxidation technology such as ozone oxidation method and electrochemical oxidation process have obtained extensive concern as preconditioning technique.
The oxidation technology is utilized the larger molecular organics in the various oxygenants attack waste water, and organism obtains oxidation in the water thereby make, and reaches the purpose that purifies water.Oxygenant commonly used has ozone, chlorine, and hydrogen peroxide etc., wherein noticeable with ozone oxidation again.Ozone is as a kind of oxygenant efficiently, be widely used in water treatment field, but also there is deficiency in it, the one, ozone oxidation has stronger selectivity, often only realized in the oxidising process that larger molecular organics is to the transformation of small organic molecule in the waste water, mineralization ability is poor; The 2nd, ozone utilization rate is not high, causes ozonize expense height.How to improve ozone utilization rate, improve its mineralization ability, become the focus of recent researches pollutent.
Electrochemical oxidation process can directly or indirectly produce hydroxyl radical free radical by the electrode reaction that catalytic activity is arranged at normal temperatures and pressures, thereby effectively degrades difficult biochemical pollutent.Because of its processing efficiency height, easy and simple to handle, caused investigator's extensive attention with advantage such as environmental compatible.But for a long time, be subjected to the restriction of electrode materials, the organic current efficiency of this process degradation is low, and the energy consumption height is difficult to realize industrialization.
Summary of the invention
Ozone/the electrochemistry integrated processing apparatus and the method that the purpose of this invention is to provide a kind of organic waste water, ozone oxidation and two kinds of technology of electrochemical oxidation is integrated, under the low conductivity condition, realize the processing rapidly and efficiently of the liquid organic pollutant of high-concentration hardly-degradable.
Ozone/the electrochemistry integrated processing apparatus of organic waste water of the present invention, comprise direct supply, constant temperature water bath and reactor, reactor places constant temperature water bath, reactor bottom is provided with aerating apparatus, and aerating apparatus connects the air outlet of ozonizer, and the inlet mouth of ozonizer links to each other with oxygen cylinder through valve, be provided with anode and negative electrode in the reactor, anode links to each other with the positive and negative electrode of direct supply respectively with negative electrode.
Above-mentioned anode can be Graphite Electrodes, and negative electrode can be to carry platinum Activated Carbon Fiber Electrodes or Activated Carbon Fiber Electrodes, preferably carries the platinum Activated Carbon Fiber Electrodes.
Utilize device of the present invention to handle the method for organic waste water, it is characterized in that the electrolyte concentration of organic waste water being adjusted to 0.1～20g/L with vitriol or hydrochloride, then waste water is joined in the reactor, the control bath temperature is 10～35 ℃, anode and negative electrode connect direct supply, control current 0.05～3A, ozonizer by aerating apparatus to the reactor aeration, control aeration flow is 30～120L/h, carries out wastewater treatment.
The present invention carries out coupling with ozone oxidation method and electrochemical oxidation method, is combined into a kind of new and effective electrochemistry high-level oxidation technology, when reducing use cost, can realize the purpose of quick degradable organic pollutant.The contrive equipment compact construction is simple, and is easy and simple to handle, and the processing efficiency height can be used for handling the liquid organic pollutant of poisonous and harmful of high-concentration hardly-degradable.
Description of drawings
Fig. 1 is the ozone/electrochemistry integrated processing apparatus synoptic diagram of organic waste water;
Fig. 2 is the degradation curve figure of different treatment art breading para-chlorophenol.
Embodiment
For a better understanding of the present invention, the invention will be further described below in conjunction with accompanying drawing and specific embodiment.
With reference to Fig. 1, ozone/the electrochemistry integrated processing apparatus of organic waste water of the present invention, comprise direct supply 1, constant temperature water bath 2 and reactor 3, reactor 3 places constant temperature water bath 2, and reactor bottom is provided with aerating apparatus 5, aerating apparatus 5 connects the air outlet of ozonizer 6, the inlet mouth of ozonizer 6 links to each other with oxygen cylinder 4 through valve 7, is provided with anode 9 and negative electrode 8 in the reactor, and anode 9 links to each other with the positive and negative electrode of direct supply 1 respectively with negative electrode 8.
Embodiment:
In concentration is in the 1L waste water of para-chlorophenol (4-CP) of 250mg/L, adds 4.7g Na
2SO
4Ionogen is regulated pH to 9; Open constant temperature water bath, regulating bath temperature is 25 ℃, and above-mentioned waste water is poured in the reactor, opens ozonizer and direct supply, and the control ozone gas flow is 30L/h, and adjusting strength of current is 1A.Regularly with liquid-transfering gun from reactor sampling analysis (0min, 2.5min, 5min, 10min, 15min, 20min, 30min, 40min, 50min, 60min).Obtain handling the degradation curve figure of para-chlorophenol, shown in Fig. 2 curve 1.From scheming as seen, the present invention rises with the prolongation in reaction times gradually to the degradation rate of 4-CP, tends towards stability to the 40min reaction, reaches 87% to the 60min clearance.
Comparative example 1:
Concentration is the para-chlorophenol waste water of 250mg/L, regulate pH to 9, open constant temperature water bath, regulating bath temperature is 25 ℃, open ozonizer, the control ozone gas flow is 30L/h, adopts the ozone oxidation method to handle above-mentioned waste water, obtain handling the degradation curve figure of para-chlorophenol, shown in Fig. 2 curve 2.From scheming as seen, the ozone oxidation method is 50% to the removal clearance of 4-CP.
Comparative example 2:
In concentration is in the para-chlorophenol waste water of 250mg/L, adds 4.7g Na
2SO
4Ionogen is regulated pH to 9; Open constant temperature water bath, regulating bath temperature is 25 ℃, opens direct supply, and adjusting strength of current is 1A, adopts electrochemical process to handle above-mentioned waste water, obtains handling the degradation curve figure of para-chlorophenol, shown in Fig. 2 curve 3.From scheming as seen, electrochemical process only is 30% to the removal clearance of 4-CP.
Test shows to have the obvious synergistic effect between ozone oxidation method and the electrochemical oxidation process.Under the low conductivity condition, can realize the processing rapidly and efficiently of the liquid organic pollutant of high-concentration hardly-degradable.
Cofactor is 2.01 when negative electrode adopts Activated Carbon Fiber Electrodes; When negative electrode adopt to carry the platinum Activated Carbon Fiber Electrodes, cofactor reached 2.33, illustrated that uploading platinum in Activated Carbon Fiber Electrodes can improve synergistic effect between ozone oxidation method and the electrochemical oxidation process, better promotes the removal of pollutent.Negative electrode adopts the cofactor of Activated Carbon Fiber Electrodes or year platinum Activated Carbon Fiber Electrodes to see Table 1.
Table 1
By table 1 as seen, compare with electrochemical oxidation process with independent ozone oxidation method, the removal of ozone/electrochemical process for treating liquid towards organic pollutant has the obvious synergistic effect, and degradation effect is better.
Claims (4)
1. ozone/the electrochemistry integrated processing apparatus of organic waste water, it is characterized in that comprising direct supply (1), constant temperature water bath (2) and reactor (3), reactor (3) places constant temperature water bath (2), reactor bottom is provided with aerating apparatus (5), aerating apparatus (5) connects the air outlet of ozonizer (6), the inlet mouth of ozonizer (6) links to each other with oxygen cylinder (4) through valve (7), be provided with anode (9) and negative electrode (8) in the reactor, anode (9) links to each other with the positive and negative electrode of direct supply (1) respectively with negative electrode (8).
2. ozone/the electrochemistry integrated processing apparatus of organic waste water according to claim 1 is characterized in that said anode (9) is a Graphite Electrodes.
3. ozone/the electrochemistry integrated processing apparatus of organic waste water according to claim 1 is characterized in that said negative electrode (8) is to carry platinum Activated Carbon Fiber Electrodes or Activated Carbon Fiber Electrodes.
4. utilize the described device of claim 1 to handle the method for organic waste water, it is characterized in that the electrolyte concentration of organic waste water being adjusted to 0.1～20g/L with vitriol or hydrochloride, then waste water is joined in the reactor (3), the control bath temperature is 10～35 ℃, anode (9) and negative electrode (8) connect direct supply, control current 0.05～3A, ozonizer by aerating apparatus to the reactor aeration, control aeration flow is 30～120L/h, carries out wastewater treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101223887A CN101417835A (en) | 2008-11-24 | 2008-11-24 | Ozone/electrochemistry integrated processing apparatus and method for organic wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101223887A CN101417835A (en) | 2008-11-24 | 2008-11-24 | Ozone/electrochemistry integrated processing apparatus and method for organic wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101417835A true CN101417835A (en) | 2009-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101223887A Pending CN101417835A (en) | 2008-11-24 | 2008-11-24 | Ozone/electrochemistry integrated processing apparatus and method for organic wastewater |
Country Status (1)
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730814A (en) * | 2012-07-16 | 2012-10-17 | 江苏丰源环保科技工程有限公司 | Method and device for treating chemical industrial wastewater containing aniline and the like |
| CN103086478A (en) * | 2013-01-25 | 2013-05-08 | 中国科学院新疆生态与地理研究所 | Method for treating oily wastewater through ozone and electrochemical synergistic oxidization |
| CN103130307A (en) * | 2013-03-26 | 2013-06-05 | 重庆大学 | Ozone and photo-electrochemical coupled oxidation water-treatment device and method |
| CN103304018A (en) * | 2013-06-14 | 2013-09-18 | 北京赛科康仑环保科技有限公司 | Method and device for enhanced ozone oxidation wastewater treatment of ozone tail gas |
| CN103406115A (en) * | 2013-08-23 | 2013-11-27 | 应宝华 | Online activated carbon fiber regeneration method |
| CN105136554A (en) * | 2015-06-03 | 2015-12-09 | 中国工程物理研究院化工材料研究所 | Electrochemical digestion method for energetic material |
| CN105753134A (en) * | 2016-03-25 | 2016-07-13 | 东莞市台腾环保材料科技有限公司 | Ozone electrolysis processor |
| CN108394960A (en) * | 2017-06-19 | 2018-08-14 | 同济大学 | A kind of electrochemical cathode micro-filtration membrane coupled reactor suitable for source water pollutant removal |
| CN110143706A (en) * | 2019-06-18 | 2019-08-20 | 中南大学 | A kind of sewage disposal system of modified carbon cloth electro-catalysis persulfate, ozone |
| CN110589938A (en) * | 2019-10-14 | 2019-12-20 | 四川大学 | Method for treating toxic and nondegradable wastewater by coupling electrolysis-ozone-corrosion inhibitor/electrolysis-ozone-hydrogen peroxide-corrosion inhibitor |
| CN114716001A (en) * | 2022-05-17 | 2022-07-08 | 苏州清缘环保科技有限公司 | Device and method for treating refractory organic matters by in-situ electricity generated hydrogen peroxide and ozone |
| CN115536183A (en) * | 2022-10-30 | 2022-12-30 | 南京理工大学 | Based on DSA (MnO) X -Ti) cathode ozone/electrochemical coupling printing and dyeing wastewater treatment method of water treatment system |
-
2008
- 2008-11-24 CN CNA2008101223887A patent/CN101417835A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730814A (en) * | 2012-07-16 | 2012-10-17 | 江苏丰源环保科技工程有限公司 | Method and device for treating chemical industrial wastewater containing aniline and the like |
| CN102730814B (en) * | 2012-07-16 | 2013-12-11 | 江苏丰源环保科技工程有限公司 | Method and device for treating chemical industrial wastewater containing aniline and the like |
| CN103086478B (en) * | 2013-01-25 | 2014-02-26 | 中国科学院新疆生态与地理研究所 | Method for treating oily wastewater through ozone and electrochemical synergistic oxidization |
| CN103086478A (en) * | 2013-01-25 | 2013-05-08 | 中国科学院新疆生态与地理研究所 | Method for treating oily wastewater through ozone and electrochemical synergistic oxidization |
| CN103130307A (en) * | 2013-03-26 | 2013-06-05 | 重庆大学 | Ozone and photo-electrochemical coupled oxidation water-treatment device and method |
| CN103304018A (en) * | 2013-06-14 | 2013-09-18 | 北京赛科康仑环保科技有限公司 | Method and device for enhanced ozone oxidation wastewater treatment of ozone tail gas |
| CN103406115B (en) * | 2013-08-23 | 2016-05-04 | 应宝华 | For the method for NACF on-line regeneration |
| CN103406115A (en) * | 2013-08-23 | 2013-11-27 | 应宝华 | Online activated carbon fiber regeneration method |
| CN105136554A (en) * | 2015-06-03 | 2015-12-09 | 中国工程物理研究院化工材料研究所 | Electrochemical digestion method for energetic material |
| CN105136554B (en) * | 2015-06-03 | 2018-08-14 | 中国工程物理研究院化工材料研究所 | A kind of electrochemistry digestion procedure of energetic material |
| CN105753134A (en) * | 2016-03-25 | 2016-07-13 | 东莞市台腾环保材料科技有限公司 | Ozone electrolysis processor |
| CN108394960A (en) * | 2017-06-19 | 2018-08-14 | 同济大学 | A kind of electrochemical cathode micro-filtration membrane coupled reactor suitable for source water pollutant removal |
| CN110143706A (en) * | 2019-06-18 | 2019-08-20 | 中南大学 | A kind of sewage disposal system of modified carbon cloth electro-catalysis persulfate, ozone |
| CN110589938A (en) * | 2019-10-14 | 2019-12-20 | 四川大学 | Method for treating toxic and nondegradable wastewater by coupling electrolysis-ozone-corrosion inhibitor/electrolysis-ozone-hydrogen peroxide-corrosion inhibitor |
| US11548797B2 (en) | 2019-10-14 | 2023-01-10 | Sichuan University | Method for electrolysis-ozone-corrosion inhibitor/electrolysis-ozone-hydrogen peroxide-corrosion inhibitor coupling treatment on toxic and refractory wastewater |
| CN114716001A (en) * | 2022-05-17 | 2022-07-08 | 苏州清缘环保科技有限公司 | Device and method for treating refractory organic matters by in-situ electricity generated hydrogen peroxide and ozone |
| CN115536183A (en) * | 2022-10-30 | 2022-12-30 | 南京理工大学 | Based on DSA (MnO) X -Ti) cathode ozone/electrochemical coupling printing and dyeing wastewater treatment method of water treatment system |
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Open date: 20090429 |