CN102241451A - Degradation method for halogenated disinfection by-products - Google Patents
Degradation method for halogenated disinfection by-products Download PDFInfo
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- CN102241451A CN102241451A CN2011100883468A CN201110088346A CN102241451A CN 102241451 A CN102241451 A CN 102241451A CN 2011100883468 A CN2011100883468 A CN 2011100883468A CN 201110088346 A CN201110088346 A CN 201110088346A CN 102241451 A CN102241451 A CN 102241451A
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Abstract
The invention relates a degradation method for halogenated disinfection by-products and relates to a method for degrading halogenated disinfection by-products. The degradation method solves the problems of high operation cost, undesirable removal effect, secondary pollution and inconvenience for use of the conventional method for degrading the halogenated disinfection by-products in water. The degradation method comprises: regulating the pH value of water to over 7; controlling the dissolved oxygen concentration in water to be less than 2mg/L; and irradiating by using ultraviolet light with a wavelength of 150 to 260 nanometers. In the degradation method provided by the method, expensive oxidizer and catalyst are not needed, secondary pollution is avoided, post treatment is not needed, and the mouthfeel of water is hardly changed; the halogenated disinfection by-products can be removed quickly, and the reactor can be designed conveniently; the use and management are convenient; and the method can be applied to effluent of urban water supply treatment plants and underground water and waste water treatment plants, industrial water and domestic water to remove the halogenated disinfection by-products in water effectively and ensure the safety of water.
Description
Technical field
The present invention relates to a kind of method of the halo disinfection byproduct (DBP) of degrading.
Background technology
Cholorination has efficiently, at a low price, stable and characteristics such as can prevent that water transfer pipe network is secondary polluted, be the drinking water disinfection technology that extensively adopts both at home and abroad at present.Studies show that this disinfectant measure has significantly reduced the sickness rate of water infectious intestinal diseases such as crowd's typhoid fever, is safeguarding that human health has played huge effect.
Because chlorine has strong oxidizing property, when adding as sterilizing agent, can make organism precursor (as humic acids, fulvic acid and the algae etc.) oxygenolysis in the former water be micromolecular compound, and generate a series of halo disinfection byproduct (DBP) with them.Because various countries and regional former water pollution degree and pollutant kind are different, therefore, there are tangible regional differences in the kind of halo disinfection byproduct (DBP) and concentration.
At present in the drinking-water of cholorination, monitored more than 300 kind of halo disinfection byproduct (DBP), having comprised: (1) halogenated alkane, as chloroform, monochlorethane, a bromodichloromethane, chlorodibromomethane, methenyl bromide and hexachloroethane etc.; (2) halogenated carboxylic acid as dichloro acetic acid (DCA), trichoroacetic acid(TCA) (TCA) and Mono Chloro Acetic Acid (MCA), also has the bromination halogen acetic acid, as dibromoacetic acid (DBA), bromine halogen acetic acid (BCA) and bromine dichloro acetic acid (BDCA); (3) halogen acetonitrile is as dihalo-acetonitrile, three halogen acetonitriles, bromine halogen acetonitrile and Chloral Hydrate etc.; (4) other also detect polychlorobiphenyl, chlorination furanone and (as 3-chloro-4-dichloromethyl-5-hydroxyl-2-furanone, MX) wait the cholorination by product in drinking-water.Wherein, but trichloromethane and Mono Chloro Acetic Acid are classified as one of carcinogenic substance by EPA.EPA has announced that disinfection byproduct (DBP) trichloromethane (THMs) and the upper content limit of Mono Chloro Acetic Acid (HAAs) in tap water are respectively 0.080mg/L and 0.060mg/L, stipulates that interiorly standard (GB5749-2006) trichloromethane (THMs) in the tap water and the content of trichoroacetic acid(TCA) (HAAs) are respectively 0.06mg/L and 0.10mg/L.
Therefore be necessary very much the halo disinfection byproduct (DBP) is removed.Remove the method for halo disinfection byproduct (DBP) in the tap water at present, mainly comprise aeration, active carbon adsorption and membrane separation process.Though these methods can both be carried out to a certain degree removal to disinfection byproduct (DBP), and certain drawback is all arranged.
Aeration mainly is the mode by aeration in water, make volatile constituent constantly by Liquid Phase Diffusion in gas phase, reach the purpose of removing volatile organic matter in the water.Therefore, aeration is mainly used in to remove in the water and has volatile haloform class disinfection byproduct (DBP).Its main weak point is: the disinfection byproduct (DBP) that can't remove non-volatile character such as halogen acetic acid; Simultaneously, this method is simple these materials of isolating from water, and the subsequent disposal problem of isolated disinfection byproduct (DBP) still needs further to solve; Increase the aeration facility, improve capital construction and running cost.
Active carbon adsorption is to utilize the duct of gac distribution and huge specific surface area to come absorb polluted matter.Its main weak point is: do not have removal effect substantially for hydrophilic organics hydrophilicity in the water such as halogen acetic acid etc.; Next is for the organic matter removal poor effect of the high density in the water; Bigger and be difficult to wash-out to the removal difficulty of contaminant trace species in the tap water; Gac needs regular regeneration to change, and costs an arm and a leg; Water quality water conservancy condition is bigger to its adsorption effect influence, the capacity of resisting impact load deficiency, and operation cost is higher.
Membrane separation technique is under the pushing effect of film both sides energy difference, utilizes the selection perviousness of film, keeps other component to allow some component to see through film, thereby reaches the separation purpose.Its main deficiency is: lack the work-ing life of film, be easy to pollute; The back flushing of film and regenerative process complicated operation; The dope that produces behind the membrane filtration still need be handled appropriate; Capital construction and running cost height; But it is bad for removal effects such as micromolecular halogenated carboxylic acids.
Therefore, be necessary very much to research and develop the technology of halo disinfection byproduct (DBP) in a kind of safe, efficient, wide spectrum, the economic removal water, make it can be applicable to city water treatment plant, underground water, sewage disposal plant effluent, process water or domestic water, effectively remove the halo disinfection byproduct (DBP) in the water, ensure water supply security; Simultaneously, can not produce secondary pollution, can obviously not change the mouthfeel of water quality.
Summary of the invention
The objective of the invention is to have the operation cost height for the method that solves halo disinfection byproduct (DBP) in the existing degradation water, removal effect is bad, and easily produces secondary pollution and inconvenient problem with use, and a kind of degradation method of halo disinfection byproduct (DBP) is provided.
The degradation method of halo disinfection byproduct (DBP) of the present invention is realized by following steps: the pH value of water body is adjusted to more than 7, dissolved oxygen concentration is lower than 2mg/L in the control water body, adopting wavelength then is that the UV-light of 150～260nm is carried out radiation treatment, promptly finishes the degradation method of halo disinfection byproduct (DBP).
The irradiation time of degradation method medium ultraviolet light of the present invention 0.1～100 minute, UV-light dosage are 15～90000 joules/liter.It is that the UV-light of 150～260nm is shone that the present invention adopts wavelength, utilizes disinfection byproduct (DBP) to realize photodegradation in the absorption of this wave band.Concrete UV-irradiation time of the present invention or UV-light dosage, can comprehensively determine concrete the UV-irradiation time and the dosage that can be easy in the scope of above-mentioned UV-irradiation time and dosage, determine to obtain the different quality correspondence according to the existing design specifications and the requirement of this area according to actual water quality characteristic (Pollutant levels, turbidity, colourity) and light source characteristic (irradiates light intensity, the illumination degree of depth) etc.When handling for conventional tap water among the present invention, UV-light dosage generally can adopt 15～1000 joules/liter; Sewage work's UV-light dosage is general to adopt 100～90000 joules/liter; Domestic water UV-light dosage adopts 5～900 joules/liter; Underground water is repaired UV-light dosage can adopt 30～6000 joules/liter; It is 50～60000 joules/liter that process water generally adopts UV-light dosage.
Adopt low pressure mercury lamp, medium pressure mercury lamp, high voltage mercury lamp, amalgam ultraviolet lamp, quasi-molecule to excite one or several ultraviolet lamps in ultraviolet lamp, xenon lamp and the halogen lamp that UV-light is provided in the degradation method of halo disinfection byproduct (DBP) of the present invention.The decoration form of ultraviolet lamp is for adopting immersion or unsettled irradiation formula; The tube spacing of wherein controlling the ultraviolet lamp fluorescent tube is no more than 4cm, and the distance of ultraviolet lamp fluorescent tube and treatment unit inwall is no more than 2cm.
Processed water body is tap water, underground water, sewage disposal plant effluent, process water or domestic water among the present invention.The flow pattern of water body in treatment unit adopts circulation batch type, complete hybrid or continuously streamed.
Halo disinfection byproduct (DBP) in the water body of the present invention comprises: halogenated alkane, halogenated carboxylic acid, halogenated aldehyde, halogenated ketone and nitrogenous disinfection byproduct (DBP).
In the ultraviolet degradation system among the present invention, the degraded of halo disinfection byproduct (DBP) mainly contains two approach: the one, and utilize disinfection byproduct (DBP) in ultraviolet spectral range, to have absorptivity to carry out direct photodissociation; The 2nd, free radicals such as the hydrogen atom that produces synchronously when utilizing UV-light photodissociation system, power and water carry out indirect photodissociation and remove.
One aspect of the present invention utilizes the ultraviolet absorption characteristic of halo disinfection byproduct (DBP) that it is directly degraded.Wherein, under UV-irradiation, to excited state, organism is in the excited state instability to the material absorbing photon with uv-absorbing character, can produce a series of physical changes or chemical transformation by ground state transition.With the example that is degraded to of trichloromethane, trichloromethane is at first sloughed a chlorine under the condition of ultraviolet lighting, and generates a CHCl
2, as following formula (1); Under the ultraviolet lighting condition that continues, further be degraded into final stable, nontoxic product.
On the other hand, utilize under the uviolizing, water molecules is decomposed and produces hydrogen atom (H), hydrated electron
And hydroxyl radical free radical materials such as (OH) carries out indirect photodissociation to the halo disinfection byproduct (DBP).Wherein H and hydrated electron
Has very strong reducing property, can make halogen on the disinfection byproduct (DBP) obtain an electronics and come off, simultaneously hydrogen atom is added to the position of halogen on the original disinfection byproduct (DBP) by nucleophilic reaction (carbon atom that links to each other with halide-ions on the disinfection byproduct (DBP) has electropositivity), as following formula (2) to (4).
CHCl
3+H·→HCl+·CHCl
2 (3)
CHCl
3+e
-→·CCl
2+Cl
- (4)
Because the halo disinfection byproduct (DBP) all is the halogenated organic matters of some relative inertness, as halogenated organic matters such as trichloromethane, trichoroacetic acid(TCA), tribromoacetic acids, they and some oxidative free radicals (OH) speed of reaction are very little, and secondary rate constant is generally less than 10
6M
-1s
-1, therefore, be difficult to they be removed fully by advanced oxidation.At this moment, mainly by hydrogen atom and hydrated electron
Reductive action removed, the speed of reaction of it and halogenated organic matters is very big, as
Can reach 10 with the rate constant of haloform reaction
10M
-1s
-1, reach 10 with the reaction rate constant of trichoroacetic acid(TCA)
9M
-1s
-1, near rate of diffusion.
Background material in the water body of the present invention is little to the removal effectiveness affects of disinfection byproduct (DBP) as the total class of inorganic zwitterion and concentration, soil ulmin, bacteria total amount etc.; The turbidity of water body, colourity have certain influence for photoreactor, can be by measuring the absorbancy of actual water quality under ultraviolet, calculate according to langbobier law then, appropriate design reactor, the UV-light dosage that reaches design require (promptly 15～90000 joules/liter) to get final product.
The degradation method of halo disinfection byproduct (DBP) of the present invention do not need expensive oxygenant and catalyzer, do not produce secondary pollution, do not need subsequent disposal, can obviously not change the mouthfeel of water quality; Can remove disinfection byproduct (DBP) fast, reactor design easily satisfies the needs of various different water bodys, and use and management is convenient, can ensure water quality safety.Therefore, the present invention is the degradation method of halo disinfection byproduct (DBP) in a kind of safe, efficient, wide spectrum, the economic removal water.
Degradation method of the present invention can be applicable to city water treatment plant, underground water, sewage disposal plant effluent, process water or domestic water.
Description of drawings
Fig. 1 is the clearance-time plot of halo disinfection byproduct (DBP) in the water body of embodiment ten, and wherein " ■-" curve is the clearance-time curve of trichoroacetic acid(TCA) in the water body, and " ▲-" curve is the denitrification percent-time curve in the water body.
Embodiment
Embodiment one: present embodiment is the degradation method of halo disinfection byproduct (DBP), it is realized by following steps: the pH value of water body is adjusted to more than 7, dissolved oxygen concentration is lower than 2mg/L in the control water body, adopting wavelength then is that the UV-light of 150～260nm is carried out radiation treatment, promptly finishes the degraded of halo disinfection byproduct (DBP).
The degradation method of the halo disinfection byproduct (DBP) of present embodiment do not need expensive oxygenant and catalyzer, do not produce secondary pollution, do not need subsequent disposal, can obviously not change the mouthfeel of water quality; Can remove disinfection byproduct (DBP) fast, reactor design easily satisfies the needs of various different water bodys, and use and management is convenient, can ensure water quality safety.It is the degradation method of halo disinfection byproduct (DBP) in a kind of safe, efficient, wide spectrum, the economic removal water.
Degradation method of the present invention can be applicable to city water treatment plant, underground water, sewage disposal plant effluent, process water or domestic water, effectively removes the halo disinfection byproduct (DBP) in the water, ensures water quality safety.
Embodiment two: what present embodiment and embodiment one were different is that dissolved oxygen concentration is lower than 1mg/L in the control water body.Other step and parameter are identical with embodiment one.
Embodiment three: present embodiment is different with embodiment one or two is that the irradiation time of control UV-light is 0.1～100 minute, and UV-light dosage is 15～90000 joules/liter.Other step and parameter are identical with embodiment one or two.
Concrete UV-irradiation time of the present invention or UV-light dosage, can comprehensively determine concrete the UV-irradiation time and the dosage that can be easy in the scope of above-mentioned UV-irradiation time and dosage, determine to obtain the different quality correspondence according to the existing design specifications and the requirement of this area according to actual water quality characteristic (Pollutant levels, turbidity, colourity) and light source characteristic (irradiates light intensity, the illumination degree of depth) etc.
When handling for conventional tap water, UV-light dosage generally can adopt 15～1000 joules/liter; Sewage work's UV-light dosage is general to adopt 100～90000 joules/liter; Domestic water UV-light dosage adopts 5～900 joules/liter; Underground water is repaired UV-light dosage can adopt 30～6000 joules/liter; It is 50～60000 joules/liter that process water generally adopts UV-light dosage.
Embodiment four: what present embodiment and embodiment one, two or three were different is to adopt low pressure mercury lamp, medium pressure mercury lamp, high voltage mercury lamp, amalgam ultraviolet lamp, quasi-molecule to excite one or several ultraviolet lamps in ultraviolet lamp, xenon lamp and the halogen lamp that UV-light is provided.Other step and parameter are identical with embodiment one, two or three.
Embodiment five: present embodiment and embodiment four are different is that the decoration form of ultraviolet lamp adopts immersion or unsettled irradiation formula.Other step and parameter are identical with embodiment four.
When present embodiment is immersion when the decoration form of ultraviolet lamp, the nested silica tube of the outer wall of ultraviolet lamp.
Embodiment six: present embodiment and embodiment four are different is that the tube spacing of control ultraviolet lamp fluorescent tube is no more than 4cm, and the distance of ultraviolet lamp fluorescent tube and treatment unit inwall is no more than 2cm.Other step and parameter are identical with embodiment four.
Treatment unit described in the present embodiment is meant the used device of method that is used to carry out ultraviolet degradation halo disinfection byproduct (DBP).
Embodiment seven: what present embodiment was different with one of embodiment one to six is that water body is tap water, underground water, sewage disposal plant effluent, process water or domestic water.Other step and parameter are identical with one of embodiment one to six.
Embodiment eight: what present embodiment was different with one of embodiment one to seven is that the flow pattern of water body in treatment unit adopts circulation batch type, complete hybrid or continuously streamed.Other step and parameter are identical with one of embodiment one to seven.
Treatment unit described in the present embodiment is meant the used device of method that is used to carry out ultraviolet degradation halo disinfection byproduct (DBP).
Embodiment nine: present embodiment is different with one of embodiment one to eight is that halo disinfection byproduct (DBP) in the water body comprises: one or more in halogenated alkane, halogenated carboxylic acid, halogenated aldehyde, halogenated ketone and the nitrogenous disinfection byproduct (DBP).Other step and parameter are identical with one of embodiment one to eight.
Embodiment ten: present embodiment is the degradation method of halo disinfection byproduct (DBP), it is realized by following steps: will contain the trichoroacetic acid(TCA) starting point concentration is the tap water water body adjusting pH value to 10 of 0.82mg/L, adopting wavelength then is that the UV-light of 150～260nm is carried out radiation treatment, promptly finishes the degraded of halo disinfection byproduct (DBP).
The degradation method of present embodiment carries out under 25 ℃ of room temperatures, and the treatment unit of employing is a cylindrical reactor.
Adopt NaOH solution to regulate the pH value to 10 of water body in the present embodiment, dissolved oxygen concentration is 1mg/L in the control tap water water body, and the flow pattern of tap water water body is for hybrid fully, and the volume of tap water water body is 800mL.
Present embodiment medium ultraviolet light is provided by low pressure mercury lamp, and power is 10W; The irradiation time of control UV-light is 30min, and UV-light dosage is 4500 joules/liter.Low pressure mercury lamp adopts immersion, at the nested silica tube of the outer wall of low pressure mercury lamp.
The tap water water body that contains the trichoroacetic acid(TCA) starting point concentration and be 0.82mg/L is after the degradation method of present embodiment is handled 30min, and the clearance of trichoroacetic acid(TCA) reaches 95%, and dechlorination rate reaches 70%, reaches the requirement of drinking water safety hygienic standard.Shown in " ■-" curve among Fig. 1, the denitrification percent-time curve in the water body is shown in " ▲-" curve among Fig. 1 at the clearance-time curve of degradation rule in the degradation process for trichoroacetic acid(TCA) in the water body of present embodiment.
As seen from Figure 1, behind degradation treatment 5min, the clearance of trichoroacetic acid(TCA) is near 50%, and dechlorination rate also reaches 40%; Behind the 30min, the clearance of trichoroacetic acid(TCA) reaches 95%, and dechlorination rate reaches 70%.Illustrate that present embodiment has good effect of removing for the trichoroacetic acid(TCA) disinfection byproduct (DBP), the degradation rate that UV-irradiation is handled disinfection byproduct (DBP) is big, and effect is obvious.
By the result of embodiment ten as can be known, the degradation method of described halo disinfection byproduct (DBP) has good effect of removing to trichoroacetic acid(TCA), because trichoroacetic acid(TCA) is a class of difficult degradation in the halo disinfection byproduct (DBP), therefore, the degradation method of halo disinfection byproduct (DBP) of the present invention can have good effect of removing equally to halo disinfection byproduct (DBP) (the halo disinfection byproduct (DBP) of other except that trichoroacetic acid(TCA)), and the degradation rate that UV-irradiation is handled the halo disinfection byproduct (DBP) is big, and effect is obvious.
Claims (8)
1. the degradation method of a halo disinfection byproduct (DBP), the degradation method that it is characterized in that the halo disinfection byproduct (DBP) is realized by following steps: the pH value of water body is adjusted to more than 7, dissolved oxygen concentration is lower than 2mg/L in the control water body, adopting wavelength then is that the UV-light of 150～260nm is carried out radiation treatment, promptly finishes the degradation method of halo disinfection byproduct (DBP).
2. the degradation method of a kind of halo disinfection byproduct (DBP) according to claim 1, the irradiation time that it is characterized in that controlling UV-light is 0.1～100 minute, UV-light dosage is 15～90000 joules/liter.
3. the degradation method of a kind of halo disinfection byproduct (DBP) according to claim 1 and 2 is characterized in that the halo disinfection byproduct (DBP) in the water body comprises: one or more in halogenated alkane, halogenated carboxylic acid, halogenated aldehyde, halogenated ketone and the nitrogenous disinfection byproduct (DBP).
4. the degradation method of a kind of halo disinfection byproduct (DBP) according to claim 1 and 2 is characterized in that adopting low pressure mercury lamp, medium pressure mercury lamp, high voltage mercury lamp, amalgam ultraviolet lamp, quasi-molecule to excite one or several ultraviolet lamps in ultraviolet lamp, xenon lamp and the halogen lamp that UV-light is provided.
5. the degradation method of a kind of halo disinfection byproduct (DBP) according to claim 4 is characterized in that the decoration form of ultraviolet lamp adopts immersion or unsettled irradiation formula.
6. the degradation method of a kind of halo disinfection byproduct (DBP) according to claim 4 is characterized in that the tube spacing of controlling the ultraviolet lamp fluorescent tube is no more than 4cm, and the distance of ultraviolet lamp fluorescent tube and treatment unit inwall is no more than 2cm.
7. the degradation method of a kind of halo disinfection byproduct (DBP) according to claim 1 and 2 is characterized in that water body is tap water, underground water, sewage disposal plant effluent, process water or domestic water.
8. the degradation method of a kind of halo disinfection byproduct (DBP) according to claim 1 and 2 is characterized in that the flow pattern of water body in treatment unit adopts circulation batch type, complete hybrid or continuously streamed.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701319A (en) * | 2012-06-27 | 2012-10-03 | 青岛双瑞海洋环境工程股份有限公司 | Method for removing residual chlorine in water by radiation of ultraviolet |
| CN103058456A (en) * | 2012-12-28 | 2013-04-24 | 华北电力大学 | Device and method for UV oxidation photolysis-based restoration of polychlorinated biphenyl-polluted underground water |
| CN103787448A (en) * | 2014-02-20 | 2014-05-14 | 南京大学 | Denitrification method combining denitrification agent and ultraviolet light |
| CN106219839A (en) * | 2016-07-27 | 2016-12-14 | 中山大学 | The method for treating water of molecular structure in water removed by a kind of ultraviolet light |
| CN106745572A (en) * | 2017-01-23 | 2017-05-31 | 哈尔滨理工大学 | The method for treating water of instability halogenated disinfection by-products in a kind of utilization persulfate in-situ control water ballast |
| CN107879522A (en) * | 2017-10-18 | 2018-04-06 | 天津大学 | The processing method of halogenated disinfection by-products in a kind of control drinking water |
| CN109231350A (en) * | 2018-09-28 | 2019-01-18 | 华中科技大学 | A kind of method of sunlight collaboration chlorination degradation Organic substance in water |
| CN111977866A (en) * | 2020-07-13 | 2020-11-24 | 中山大学 | Chlorine dioxide and ultraviolet and chlorine coupled water purification method |
| CN112897635A (en) * | 2021-01-27 | 2021-06-04 | 同济大学 | Method for removing organic chloramine in drinking water |
-
2011
- 2011-04-08 CN CN 201110088346 patent/CN102241451B/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| MICHAEL J. ETAL.: "Chlorine photolysis and subsequent OH radical production during UV treatment of chlorinated water", 《WATER RESEARCH》 * |
| 黄鑫等: "水中二溴海因在紫外辐照下的分解和副产物的形成机理", 《中南大学学报（自然科学版）》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701319A (en) * | 2012-06-27 | 2012-10-03 | 青岛双瑞海洋环境工程股份有限公司 | Method for removing residual chlorine in water by radiation of ultraviolet |
| CN103058456A (en) * | 2012-12-28 | 2013-04-24 | 华北电力大学 | Device and method for UV oxidation photolysis-based restoration of polychlorinated biphenyl-polluted underground water |
| CN103058456B (en) * | 2012-12-28 | 2014-03-26 | 华北电力大学 | Device and method for UV oxidation photolysis-based restoration of polychlorinated biphenyl-polluted underground water |
| CN103787448A (en) * | 2014-02-20 | 2014-05-14 | 南京大学 | Denitrification method combining denitrification agent and ultraviolet light |
| CN106219839A (en) * | 2016-07-27 | 2016-12-14 | 中山大学 | The method for treating water of molecular structure in water removed by a kind of ultraviolet light |
| CN106745572A (en) * | 2017-01-23 | 2017-05-31 | 哈尔滨理工大学 | The method for treating water of instability halogenated disinfection by-products in a kind of utilization persulfate in-situ control water ballast |
| CN107879522A (en) * | 2017-10-18 | 2018-04-06 | 天津大学 | The processing method of halogenated disinfection by-products in a kind of control drinking water |
| CN109231350A (en) * | 2018-09-28 | 2019-01-18 | 华中科技大学 | A kind of method of sunlight collaboration chlorination degradation Organic substance in water |
| CN111977866A (en) * | 2020-07-13 | 2020-11-24 | 中山大学 | Chlorine dioxide and ultraviolet and chlorine coupled water purification method |
| CN112897635A (en) * | 2021-01-27 | 2021-06-04 | 同济大学 | Method for removing organic chloramine in drinking water |
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