CN101372369A - Ultraviolet catalytic sterilization and chlorination combined disinfection method for water - Google Patents
Ultraviolet catalytic sterilization and chlorination combined disinfection method for water Download PDFInfo
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- CN101372369A CN101372369A CNA2008101988111A CN200810198811A CN101372369A CN 101372369 A CN101372369 A CN 101372369A CN A2008101988111 A CNA2008101988111 A CN A2008101988111A CN 200810198811 A CN200810198811 A CN 200810198811A CN 101372369 A CN101372369 A CN 101372369A
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Abstract
The invention discloses a method for sterilizing water by ultraviolet light catalysis and chlorine. The water treatment method combines ultraviolet light catalysis sterilization and chlorine sterilization to sterilize water. The method comprises the following steps: sterilization with the ultraviolet light catalyst is carried out first, and then the chlorine is added to the water within 0-60 minutes for the sterilization, or the chlorine is added to the water for the sterilization first, and then the sterilization with the ultraviolet light catalyst is carried out within 0-60 minutes, or the sterilization with the ultraviolet light catalyst is carried out on the water while adding the chlorine to the water for the sterilization, or the chlorine is previously added to the water before coagulation treatment is carried out on a water sample, coagulation treatment, precipitation treatment and filtration treatment are carried out, and then the sterilization with the ultraviolet light catalyst is carried out for the sterilization, or the ultraviolet light catalysis sterilization and the chlorine sterilization is carried out for treating the water sample after the coagulation treatment, the precipitation treatment and the filtration treatment. The method ensures biological safety and chemical safety of the water sample.
Description
Technical field
The present invention relates to a kind of water treatment method, a kind of ultraviolet catalytic of water sterilization specifically and chlorine disinfectant associating disinfectant method.
Background technology
Sterilization is a most important and irreplaceable processing unit in the conventional water treatment process.Chlorine disinfectant economy, efficient is generally adopted by all kinds of water treatment plants, water processing establishment, effluent treating and reusing process.Its shortcoming mainly is the disinfection byproduct (DBP) that generates multiple complexity in the sterilizing process, as strong carcinogens such as haloform halogenated acetic acids.In addition, chlorine is deactivation such as Cryptosporidium and the contour chlorine resistance pathogeny of Giardia lamblia microorganism effectively, and drinking water safety is had very big potential threat.
Water treatment plant for adopting single chlorine disinfectant should guarantee to resist the inactivating efficacy of chlorine venereal disease source microorganism, keeps lower water outlet chlorinatedorganic level almost can't realize again.Present most of earth surface water source is subjected to organic contamination, if adopt the chlorine disinfectant of big throwing amount certainly will cause disinfection byproduct (DBP) content significantly to raise, forms the situation of contradiction in this case.
The invention discloses sterilization of a kind of ultraviolet catalytic and chlorine disinfectant associating disinfectant method, can efficient inactivation parasites such as " two worms ", and can guarantee that water outlet hangs down the disinfection byproduct (DBP) level, can significantly improve water safety.
Summary of the invention
The present invention is directed to the deficiency of existing water treatment disinfection technology, purpose is to provide a kind of ultraviolet catalytic sterilization of water and the sterilization method of chlorination combined usefulness.
The sterilization of the ultraviolet catalytic of water of the present invention is to produce the sterilization of strong oxidizing property free radical with the UV-irradiation catalyzer with the method for chlorination combined usefulness, and with the chlorine coupling to the water disinfection.Chlorine can be one or more the mixture in the chlorine-containing disinfectants such as chlorine, hypochlorite, chloramines, dioxide peroxide.Catalyzer can be one or more the mixture in titanium dioxide, hydrogen peroxide, the ozone.
Described with ultraviolet catalytic sterilization with chlorination combined use to the water disinfection can be carry out the sterilization of UV-irradiation catalyzer earlier after, in 0～60 minute, in water, add chlorine again and carry out disinfection.
Described also can be to add chlorine earlier in water to carry out disinfection with the ultraviolet catalytic sterilization with chlorination combined using the water disinfection, carried out the UV-irradiation catalyzer again and carry out disinfection in 0～60 minute.
Described also can be to add chlorine simultaneously in water and carry out disinfection water being carried out UV-irradiation catalyzer disinfectant with ultraviolet catalytic sterilization with chlorination combined using the water disinfection.
Described can also be to add chlorine disinfectant before water carries out coagulating treatment in advance with the ultraviolet catalytic sterilization with chlorination combined using the water disinfection, through adopting the sterilization of UV-irradiation catalyzer after coagulation, precipitation, the filtration treatment.
Described with UV-light and dioxide peroxide coupling to the water disinfection can also carry out biochemistry to water, materialization adopts the above-mentioned ultraviolet catalytic sterilization and the method for chlorination combined usefulness to handle water sample after handling again.
Described UV-light can be a multi-source, and the total dose of UV-irradiation is 0.1～200mJ/cm
2
Described catalyzer titanium dioxide can be solidificated in carrier surface, and hydrogen peroxide adds in UV-light equipment, and ozone is dispersed in the water with aeration or dissolved mode.
The described amount that adds chlorine is counted 0.1～30mg/L with its available chlorine content.
Described water can be sewage, also can tap water, and perhaps other are applicable to the water that aforesaid method carries out disinfection and handles.
Ultraviolet catalytic sterilization proposed by the invention and chlorination combined method with treating water, the characteristics of its technical scheme are to utilize the ultraviolet source irradiation catalyzer to produce strong oxidizing property radical pair pathogenic microorganism high-effective disinfecting, UV-light is to the katalysis to chlorine disinfectant of the attenuation of pathogenic microorganism, UV-light, improve the deactivation efficient of high chlorine resistance pathogeny microorganism, and reach the purpose of cutting down water outlet disinfection byproduct (DBP) concentration by control chlorine throwing amount.
Compared with prior art, method provided by the invention has following beneficial effect:
(1) method of the present invention adopts ultraviolet catalytic sterilization and chlorination combined using to handle water sample, wherein the free radical that produces of UV-irradiation catalyzer can the efficient inactivation pathogenic microorganism, UV-irradiation " two worms " the contour chlorine resistance pathogeny microbic activity that also can effectively weaken, improve chlorine disinfectant speed, can make follow-up chlorine disinfectant efficient improve more than 2 times; And UV-irradiation also can the quick catalysis chlorine disinfectant, and the instantaneous high-effective disinfecting that reaches promptly reaches the inactivation of virus rate more than 99.99%.
(2) the present invention adopts low dosage UV-irradiation catalyzer to produce the strong oxidizing property free radical, improves ultraviolet disinfection efficient.
(3) the present invention adopts low throwing amount chlorine can reach control germ regenerated purpose, has reduced cost of water treatment.
(4) present method can effectively be controlled the bacterium posthumous phenomenon of independent ultraviolet disinfection, and the biology of treated water sample and chemical safety have all obtained effective assurance, can also effectively reduce the generation of strong carcinogenic halogenated organic matters such as trichloromethane simultaneously.
Embodiment
Embodiment 1
The water outlet of drinking water plant filter tank is handled, carrier is set in the sterilization equipment, the surface cure titanium dioxide film adopts low pressure mercury lamp to produce UV-irradiation and tap water is carried out disinfection total dose 20mJ/cm
2Add Losantin in ultraviolet disinfection equipment exit, 2mg/L[is with Cl for the throwing amount
2(being available chlorine, as follows) meter], disinfecting time 15 minutes.
Embodiment 2
To the municipal effluent secondary effluent is that the reuse water of source water is handled, and carrier is set in the sterilization equipment, and the surface cure titanium dioxide film adopts medium pressure mercury lamp generation UV-light water to be carried out disinfection total dose 20mJ/cm
2Add chlorine in ultraviolet disinfection equipment exit, the throwing amount is that 3mg/L is (with Cl
2Meter), can use.
Embodiment 3
The water outlet of drinking water plant filter tank is handled, and Xiang Shuizhong adds chloramines 2mg/L, behind the thorough mixing water is passed through low-pressure high-strength mercury lamp ultraviolet disinfection equipment, and the equipment entrance place adds hydrogen peroxide 1mg/L, UV-irradiation total dose 10mJ/cm
2, can use.
Embodiment 4
To the municipal effluent secondary effluent is that the reuse water of source water is handled, adopt Xiang Shuizhong and add dioxide peroxide 1mg/L, behind the thorough mixing water is passed through low-pressure high-strength mercury lamp ultraviolet disinfection equipment, the equipment entrance place disperses ozone 0.5mg/L in water, UV-irradiation total dose 10mJ/cm
2, can use.
Embodiment 5
Swimming-pool water is carried out circular treatment, behind materialization such as filtration treatment process, adopt low pressure mercury lamp generation UV-light that water is carried out disinfection, carrier is set, surface cure titanium dioxide film, UV-light total dose 70mJ/cm in the sterilization equipment
2The place adds clorox at the ultraviolet disinfection equipment entrance, and the throwing amount is that 1mg/L is (with Cl
2Meter), can use.
Embodiment 6
To river is that the surface water of source water is handled, add chloramines 5mg/L among the Xiang Yuanshui, then through conventional treatment processes such as coagulation, precipitation, filtrations, low-pressure high-strength mercury lamp ultraviolet disinfection equipment is passed through in the filter tank water outlet, the equipment entrance place adds hydrogen peroxide 1mg/L, UV-irradiation total dose 50mJ/cm
2, can use.
Claims (10)
1. the ultraviolet catalytic of water sterilization and chlorine disinfectant associating disinfectant method is characterized in that adopting the UV-irradiation catalyzer and adds chlorine and unite to use and carry out disinfection.
2. the method for claim 1 is characterized in that adopting the UV-irradiation catalyzer to carry out disinfection earlier, added chlorine again and carry out disinfection in 0～60 minute in water.
3. the method for claim 1 is characterized in that adding chlorine earlier in water carries out disinfection, and carries out the sterilization of UV-irradiation catalyzer again in 0～60 minute.
4. the method for claim 1 is characterized in that adding chlorine simultaneously in water and carrying out disinfection water being carried out UV-irradiation catalyzer disinfectant.
5. the method for claim 1 is characterized in that described catalyzer is one or more the mixture in titanium dioxide, hydrogen peroxide or the ozone.
6. the method for claim 1 is characterized in that described chlorine is one or more the mixture in chlorine, hypochlorite, chloramines or the dioxide peroxide.
7. the method for claim 1 is characterized in that adding in advance chlorine before tap water carries out coagulating treatment, through adopting the sterilization of UV-irradiation catalyzer after coagulation, precipitation, the filtration treatment.
8. the method for claim 1 is characterized in that earlier water being carried out adopting ultraviolet catalytic sterilization and chlorination combined using to handle water sample again after biochemistry, the materialization processing.
9. the method for claim 1 is characterized in that being provided with carrier in the ultraviolet lighting jet device, and titanium dioxide is arranged on carrier surface, and hydrogen peroxide adds in UV-light equipment, and ozone is dispersed in the water with aeration or dissolved mode.
10. the method for claim 1, the total dose that it is characterized in that UV-irradiation is 0.1～200mJ/cm
2, the amount that adds chlorine is counted 0.1～30mg/L with its available chlorine content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101988111A CN101372369A (en) | 2008-09-26 | 2008-09-26 | Ultraviolet catalytic sterilization and chlorination combined disinfection method for water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101988111A CN101372369A (en) | 2008-09-26 | 2008-09-26 | Ultraviolet catalytic sterilization and chlorination combined disinfection method for water |
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|---|---|
| CN101372369A true CN101372369A (en) | 2009-02-25 |
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|---|---|---|---|
| CNA2008101988111A Pending CN101372369A (en) | 2008-09-26 | 2008-09-26 | Ultraviolet catalytic sterilization and chlorination combined disinfection method for water |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070269A (en) * | 2010-12-08 | 2011-05-25 | 同济大学 | Disinfection method combining ultraviolet with composite disinfectant used for source water of Huangpu River |
| CN102167464A (en) * | 2011-03-24 | 2011-08-31 | 同济大学 | Water treatment sterilization method by ultraviolet catalysis hydrogen peroxide matched with chlorine/chloramine |
| CN103241827A (en) * | 2013-05-22 | 2013-08-14 | 哈尔滨工业大学 | Water treatment method for simultaneously eliminating dissolved organic matters and ammonia nitrogen |
| CN103601325A (en) * | 2013-11-08 | 2014-02-26 | 同济大学 | Method and device for removing ronidazole in water |
| CN104860373A (en) * | 2015-05-28 | 2015-08-26 | 天津城建大学 | Water treatment method for removing trihalomethane in drinking water by utilizing UV (ultraviolet)/H2O2 |
| CN105384308A (en) * | 2015-11-23 | 2016-03-09 | 刘树芹 | Dye wastewater treatment method |
| CN105399257A (en) * | 2015-12-08 | 2016-03-16 | 北京工业大学 | Safety disinfection method combining ultraviolet/titanium dioxide disinfection and chlorine disinfection |
| CN105712549A (en) * | 2016-02-26 | 2016-06-29 | 同济大学 | Method for inhibiting forming of bromo nitrogenous disinfection byproducts in water |
| CN106082390A (en) * | 2016-07-27 | 2016-11-09 | 中山大学 | A kind of method that ultraviolet light and the combination of free chlorine reduce water quality comprehensive toxicity |
| CN106365367A (en) * | 2016-10-19 | 2017-02-01 | 天津泰达津联自来水有限公司 | Multi-stage combined disinfection method for domestic drinking water |
| CN106630321A (en) * | 2016-11-17 | 2017-05-10 | 滨州学院 | Treatment process for disinfection by-products of drinking water |
| CN107683261A (en) * | 2015-04-24 | 2018-02-09 | Ebed控股有限公司 | Liquid processing system and method |
| CN109133281A (en) * | 2018-11-01 | 2019-01-04 | 广州新奥环境技术有限公司 | MODS decontamination system |
| CN109354307A (en) * | 2018-11-01 | 2019-02-19 | 安捷控股有限公司 | A kind of purified in situ black and odorous water processing method and its processing unit |
| CN111087036A (en) * | 2019-12-27 | 2020-05-01 | 湖南大学 | Method for synchronously removing chlorite and emerging organic micropollutants in water by using ultraviolet light |
| CN111533341A (en) * | 2020-05-11 | 2020-08-14 | 上海市政工程设计研究总院（集团）有限公司 | Closed treatment method for virus prevention and control and water purification and deodorization of pipe network discharge port |
| CN111977866A (en) * | 2020-07-13 | 2020-11-24 | 中山大学 | Chlorine dioxide and ultraviolet and chlorine coupled water purification method |
| CN114249378A (en) * | 2021-11-23 | 2022-03-29 | 哈尔滨工业大学（深圳） | Based on TiO2Sulfonamide antibiotic sewage photocatalysis treatment method |
-
2008
- 2008-09-26 CN CNA2008101988111A patent/CN101372369A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070269A (en) * | 2010-12-08 | 2011-05-25 | 同济大学 | Disinfection method combining ultraviolet with composite disinfectant used for source water of Huangpu River |
| CN102167464A (en) * | 2011-03-24 | 2011-08-31 | 同济大学 | Water treatment sterilization method by ultraviolet catalysis hydrogen peroxide matched with chlorine/chloramine |
| CN103241827A (en) * | 2013-05-22 | 2013-08-14 | 哈尔滨工业大学 | Water treatment method for simultaneously eliminating dissolved organic matters and ammonia nitrogen |
| CN103601325A (en) * | 2013-11-08 | 2014-02-26 | 同济大学 | Method and device for removing ronidazole in water |
| CN107683261A (en) * | 2015-04-24 | 2018-02-09 | Ebed控股有限公司 | Liquid processing system and method |
| CN104860373A (en) * | 2015-05-28 | 2015-08-26 | 天津城建大学 | Water treatment method for removing trihalomethane in drinking water by utilizing UV (ultraviolet)/H2O2 |
| CN105384308A (en) * | 2015-11-23 | 2016-03-09 | 刘树芹 | Dye wastewater treatment method |
| CN105399257A (en) * | 2015-12-08 | 2016-03-16 | 北京工业大学 | Safety disinfection method combining ultraviolet/titanium dioxide disinfection and chlorine disinfection |
| CN105712549B (en) * | 2016-02-26 | 2018-07-27 | 同济大学 | A kind of method that bromo nitrogenous disinfection byproducts are formed in inhibition water |
| CN105712549A (en) * | 2016-02-26 | 2016-06-29 | 同济大学 | Method for inhibiting forming of bromo nitrogenous disinfection byproducts in water |
| CN106082390A (en) * | 2016-07-27 | 2016-11-09 | 中山大学 | A kind of method that ultraviolet light and the combination of free chlorine reduce water quality comprehensive toxicity |
| CN106365367A (en) * | 2016-10-19 | 2017-02-01 | 天津泰达津联自来水有限公司 | Multi-stage combined disinfection method for domestic drinking water |
| CN106630321A (en) * | 2016-11-17 | 2017-05-10 | 滨州学院 | Treatment process for disinfection by-products of drinking water |
| CN106630321B (en) * | 2016-11-17 | 2019-04-16 | 滨州学院 | A kind of disinfection by-product of drinking water treatment process |
| CN109133281A (en) * | 2018-11-01 | 2019-01-04 | 广州新奥环境技术有限公司 | MODS decontamination system |
| CN109354307A (en) * | 2018-11-01 | 2019-02-19 | 安捷控股有限公司 | A kind of purified in situ black and odorous water processing method and its processing unit |
| CN109354307B (en) * | 2018-11-01 | 2021-10-01 | 山东尚科环境工程有限公司 | In-situ purification black and odorous water body treatment method and treatment device thereof |
| CN111087036A (en) * | 2019-12-27 | 2020-05-01 | 湖南大学 | Method for synchronously removing chlorite and emerging organic micropollutants in water by using ultraviolet light |
| CN111533341A (en) * | 2020-05-11 | 2020-08-14 | 上海市政工程设计研究总院（集团）有限公司 | Closed treatment method for virus prevention and control and water purification and deodorization of pipe network discharge port |
| CN111533341B (en) * | 2020-05-11 | 2021-01-05 | 上海市政工程设计研究总院（集团）有限公司 | Closed treatment method for virus prevention and control and water purification and deodorization of pipe network discharge port |
| CN111977866A (en) * | 2020-07-13 | 2020-11-24 | 中山大学 | Chlorine dioxide and ultraviolet and chlorine coupled water purification method |
| CN114249378A (en) * | 2021-11-23 | 2022-03-29 | 哈尔滨工业大学（深圳） | Based on TiO2Sulfonamide antibiotic sewage photocatalysis treatment method |
| CN114249378B (en) * | 2021-11-23 | 2023-08-15 | 哈尔滨工业大学（深圳） | TiO-based 2 Photo-catalytic treatment method for sulfonamide antibiotics sewage |
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Open date: 20090225 |