CN102432094A - Method for treating micro-polluted source water - Google Patents
Method for treating micro-polluted source water Download PDFInfo
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- CN102432094A CN102432094A CN2011103323260A CN201110332326A CN102432094A CN 102432094 A CN102432094 A CN 102432094A CN 2011103323260 A CN2011103323260 A CN 2011103323260A CN 201110332326 A CN201110332326 A CN 201110332326A CN 102432094 A CN102432094 A CN 102432094A
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Abstract
The invention discloses a method for treating micro-polluted source water. By the method, organic pollutants and metal ions in the micro-polluted source water can be effectively removed; and the water treatment method can be used for treating the micro-polluted source water on a large scale and is high in treatment efficiency, low in treatment cost and high in application value. The technical key point is that: a UV/(H2O2+O3) advanced oxidation technology and an activated carbon fiber (ACF) are subjected to combined application, so that catalytic oxidation and adsorption are performed simultaneously; and the combined application is that the H2O2 and the ACF are added into the source water to be treated simultaneously, and ultraviolet (UV) degradation is performed while O3 is introduced.
Description
Technical field
The present invention relates to water-treatment technology field, be specifically related to a kind of method of handling micro-polluted source water.
Background technology
Water is valuable natural resources, is human basic substance of depending on for existence with all biologies.The total moisture storage capacity in the whole world is estimated as 13.9 * 10
17m
3, but wherein the fresh water total amount only to account for 2.53% be 0.36 * 10
17m
369% of Freshwater resources are the glaciers, mainly are positioned at the two poles of the earth and the high mountain area of the earth; The fresh water that can supply people directly to utilize mainly exists with the form of surface water and shallow ground water, and reserves are less than 0.3% of global fresh water total amount.
China Freshwater resources occupancy volume per person 2340m
3, be about 1/4 of the per capita water yield in the world, classified as one of 13 countries of poor-water, there is more than 400 lack of water in 668 cities, the whole nation.Meanwhile; Industry; Particularly manufactures such as organic chemical industry, petrochemical complex, medicine, agricultural chemicals, sterilant and weedicide develops rapidly; The output and the kind of organic cpds constantly increase, and various factory effluents and sewage do not reach emission standard and just directly get into water body, cause 82% waters and 93% urban groundwater source to be polluted; " China Environmental State Bulletin in 2010 " that national environmental protection portion announces shows that 2010, national wastewater emission amount was 617.3 hundred million tons, increases by 4.7% than the last year.Whole nation surface water pollution is still serious.Seven big water system water quality totally are slight pollution, and lake (reservoir) eutrophication problem is outstanding.These problems make and the tap water quality variation there is potential threat in HUMAN HEALTH.
To the characteristics of micro-polluted source water, generally adopt treatment processs such as bio-oxidation, chemical oxidation, membrane separation technique, charcoal absorption both at home and abroad.The independent use of these technology exists long, problem such as treatment capacity is little, processing cost is high, efficient is low of treatment time.Also join together to handle micro-polluted source water actively developing several kinds of treatment technologies both at home and abroad at present, as make ozone-biological activated carbon technology, Biological Pretreatment-conventional treatment process etc.
High-level oxidation technology is meant the activity that in water treatment procedure, makes full use of radical (like OH), fast the water technology of exhaustive oxidation organic pollutant.Utilize advanced oxidation processes processing polluted-water method to summarize both at home and abroad and can be divided into following several types: directly photodissociation, UV-light/oxygenant (UV/H
2O
2, UV/O
3Deng), homogeneous phase photochemical catalytic oxidation (light Fenton, UV/Fe (III)-OH complexes system) and multiphase photocatalysis oxidation (conductor photocatalysis).Their common feature is oxidation, degraded even mineralising organism through generating living radical such as hydroxyl radical free radical.Compare with traditional technology, AOP technology (high-level oxidation technology) has clear superiority: equipment is simple, does not have or less DBPs, and speed of response is fast, and oxidation is thorough.But the AOP method also exists some problems, and is higher like processing cost, and carbanion and suspended solids have interference etc. to reaction.Simultaneously, utilize advanced oxidation processes also to be difficult to remove the metals ion in the water body.
Summary of the invention
Technical problem to be solved by this invention is, removes the most of metals ion in the micro-polluted source water, improves the water body treatment effect, practices thrift processing cost, also is applicable to the improvement of extensive micro-polluted source water simultaneously.
In order to address the above problem technical scheme of the present invention is such:
A kind of method of handling micro-polluted source water is characterized in that, at first in the photochemical reaction pond that fills described micro-polluted source water, throws in H simultaneously
2O
2And activated carbon fiber, then feed O
3And feeding O
3The time carry out ultraviolet degradation.
Said H
2O
2Dosage be 10-30mg/l, said O
3The dosage of (ozone) is 1-10mg/l, and the dosage of said activated carbon fiber is 100-500mg/l, and said UV-light results from long-wave ultra violet lamp (UVA), and wavelength is 365nm, and the entire treatment time is 30-40min.
Said activated carbon fiber can use repeatedly.
The light source that uses in the said ultraviolet degradation is low pressure mercury lamp or medium pressure mercury lamp or both placed in-line light sources.
Said light source is installed in parallel in the photochemical reaction pond.
The present invention is at utilization UV/ (H
2O
2+ O
3) when high-level oxidation technology is handled source water, add activated carbon fiber, make catalyzed oxidation and absorption carry out simultaneously; Exist synergy so between the two; Can improve the water body treatment effect, practice thrift processing cost simultaneously, and can be applied to the improvement of micro-polluted source water on a large scale.
The foundation of two kinds of technological couplings is: photocatalytic degradation can reduce the concentration of part organic pollutant in the water on the one hand; Larger molecular organics oxidative degradation with the difficult absorption of part A CF simultaneously becomes the small organic molecule matter that is easy to be adsorbed, and strengthens the adsorptive power of ACF; On the other hand, in absorption, continue oxidation, can further continue oxygenolysis with surperficial organism, alleviated the burden of sorbent material, make sorbent material fully adsorb not oxidized organism, and prolonged the adsorption cycle of ACF being adsorbed in the ACF hole.Simultaneously, this method can also effectively be removed the most of metals ion in the micro-polluted source water, and water body is purified.
Beneficial effect: technical scheme of the present invention, can remove organic pollutant and metals ion in the micro-polluted source water effectively, processing efficiency is high, and processing cost is low, can be used for the improvement of extensive micro-polluted source water, has very high using value.
Description of drawings
Specify the present invention below in conjunction with accompanying drawing;
Fig. 1 handles the test-results at phenol simulating pollution water source for using several method;
Fig. 2 removes Fe in the simulating pollution water source for using the present invention
3+Treatment effect.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with specific embodiment, further set forth the present invention.
Comparative Examples 1
Preparation phenol mimic micro-polluted source water, the phenol initial content in this micro-polluted source water is 10mg/L.This micro-polluted source water is poured in the parallel photochemical reaction pond that light source is installed, in the photochemical reaction pond, drops into H then
2O
2, H
2O
2Feed intake finish after, feed ozone again, when feeding ozone, open light source and carry out uviolizing and handle, the treatment time is 30 minutes, the phenol clearance only reaches about 40%.In this Comparative Examples, H
2O
2Dosage be 20mg/L, the dosage of ozone is 5mg/L, light source is the 300W medium pressure mercury lamp.
Comparative Examples 2
Preparation phenol mimic micro-polluted source water, the phenol initial content in this micro-polluted source water is 10mg/L.This micro-polluted source water is poured in the parallel photochemical reaction pond that light source is installed; In the photochemical reaction pond, drop into activated carbon fiber ACF then, Pyrogentisinic Acid's mimic micro-polluted source water carries out adsorption treatment; After 30 minutes, the phenol clearance only reaches about 50%.Wherein in this Comparative Examples, the dosage of ACF is 200mg/L.
Embodiment 1
Preparation phenol mimic micro-polluted source water, the phenol initial content in this micro-polluted source water is 10mg/L.This micro-polluted source water is poured in the parallel photochemical reaction pond that light source is installed, in the photochemical reaction pond, drops into H then
2O
2With activated carbon fiber ACF, feed ozone again, when feeding ozone, to open light source and carry out the uviolizing processing, the treatment time is 30 minutes.The phenol clearance can reach about 85%.
As shown in Figure 1, with respect to the independent use of two kinds of technology, pollutants removal rate is significantly improved during two kinds of technological couplings.
Embodiment 2
Preparation Fe
3+The mimic micro-polluted source water, the Fe in this micro-polluted source water
3+Initial content is 20mg/L, and this micro-polluted source water is poured in the parallel photochemical reaction pond that light source is installed, and in the photochemical reaction pond, drops into H then
2O
2With activated carbon fiber ACF, feed ozone again, when feeding ozone, to open light source and carry out the uviolizing processing, the treatment time is 30 minutes.Can know by Fig. 2, after the processing, Fe
3+Clearance can reach about 90%.Wherein, the H of this embodiment
2O
2Dosage be 20mg/L, the dosage of ozone is 5mg/L, the dosage of ACF is 200mg/L.Light source is the 300W medium pressure mercury lamp.
Can know UV/ (H by above experimental result
2O
2+ O
3) and activated carbon fiber (ACF) exist good synergy between the two, can remove organic pollutant and metals ion in the micro-polluted source water effectively, processing efficiency is high, processing cost is low, has very high using value.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification sheets just explains principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (5)
1. a method of handling micro-polluted source water is characterized in that, at first in the photochemical reaction pond that fills described micro-polluted source water, throws in H simultaneously
2O
2And activated carbon fiber, then feed O
3And feeding O
3The time carry out ultraviolet degradation.
2. a kind of method of handling micro-polluted source water according to claim 1 is characterized in that said H
2O
2Dosage be 10-30mg/l, said O
3Dosage be 1-10mg/l, the dosage of said activated carbon fiber is 100-500mg/l, said ultraviolet light wavelength is 365nm, the entire treatment time is 30-40 minute.
3. a kind of method of handling micro-polluted source water according to claim 1 is characterized in that said activated carbon fiber can use repeatedly.
4. a kind of method of handling micro-polluted source water according to claim 1 is characterized in that, the light source that uses in the said ultraviolet degradation is low pressure mercury lamp or medium pressure mercury lamp or both placed in-line light sources.
5. a kind of method of handling micro-polluted source water according to claim 4 is characterized in that said light source is installed in parallel in the photochemical reaction pond.
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|---|---|---|---|
| CN2011103323260A CN102432094A (en) | 2011-10-27 | 2011-10-27 | Method for treating micro-polluted source water |
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|---|---|---|---|
| CN2011103323260A CN102432094A (en) | 2011-10-27 | 2011-10-27 | Method for treating micro-polluted source water |
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ID=45980504
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860453A (en) * | 2015-05-08 | 2015-08-26 | 青岛锻艺金属有限公司 | Method for treating heavy metal wastewater during machining process |
| CN110950495A (en) * | 2019-12-11 | 2020-04-03 | 山东建筑大学 | Advanced oxidation combined micro-nano bubble water supply advanced treatment system and method |
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|---|---|---|---|---|
| US5256299A (en) * | 1990-07-02 | 1993-10-26 | International Environmental Systems, Inc., Usa | Method and apparatus for liquid treatment |
| WO1995021794A1 (en) * | 1994-02-14 | 1995-08-17 | Envirex, Inc. | Integrated adsorption/advanced oxidation fluidized bed reactor |
| JPH0975993A (en) * | 1995-09-19 | 1997-03-25 | Taiyo Kagaku Kogyo Kk | Treatment of organic matter-containing waste water and device therefor |
| JP2000202466A (en) * | 1999-01-11 | 2000-07-25 | Ebara Corp | Treatment of sewage containing internal secretion disturbance material or carcinogenic substance and its apparatus |
| JP3647207B2 (en) * | 1997-06-23 | 2005-05-11 | 日本下水道事業団 | Water treatment method and apparatus |
| CN101264969A (en) * | 2008-04-17 | 2008-09-17 | 武汉科技学院 | Double catalytic oxidation method for treating water |
| CN101863526A (en) * | 2010-07-05 | 2010-10-20 | 李朝林 | Method and device for degrading pollutants through ultraviolet catalytic wet oxidation |
-
2011
- 2011-10-27 CN CN2011103323260A patent/CN102432094A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5256299A (en) * | 1990-07-02 | 1993-10-26 | International Environmental Systems, Inc., Usa | Method and apparatus for liquid treatment |
| WO1995021794A1 (en) * | 1994-02-14 | 1995-08-17 | Envirex, Inc. | Integrated adsorption/advanced oxidation fluidized bed reactor |
| JPH0975993A (en) * | 1995-09-19 | 1997-03-25 | Taiyo Kagaku Kogyo Kk | Treatment of organic matter-containing waste water and device therefor |
| JP3647207B2 (en) * | 1997-06-23 | 2005-05-11 | 日本下水道事業団 | Water treatment method and apparatus |
| JP2000202466A (en) * | 1999-01-11 | 2000-07-25 | Ebara Corp | Treatment of sewage containing internal secretion disturbance material or carcinogenic substance and its apparatus |
| CN101264969A (en) * | 2008-04-17 | 2008-09-17 | 武汉科技学院 | Double catalytic oxidation method for treating water |
| CN101863526A (en) * | 2010-07-05 | 2010-10-20 | 李朝林 | Method and device for degrading pollutants through ultraviolet catalytic wet oxidation |
Non-Patent Citations (2)
| Title |
|---|
| 刘春芳: "臭氧高级氧化技术在废水处理中的研究进展", 《石化技术与应用》 * |
| 陈瑛,郭二民,黄国忠等: "紫外光和活性炭对有机物臭氧化的协同催化作用", 《环境科学研究》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860453A (en) * | 2015-05-08 | 2015-08-26 | 青岛锻艺金属有限公司 | Method for treating heavy metal wastewater during machining process |
| CN110950495A (en) * | 2019-12-11 | 2020-04-03 | 山东建筑大学 | Advanced oxidation combined micro-nano bubble water supply advanced treatment system and method |
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Application publication date: 20120502 |