CN108892201A - A kind of method that transition metal ions collaboration UV activation potassium hydrogen persulfate kills microorganism in water - Google Patents
A kind of method that transition metal ions collaboration UV activation potassium hydrogen persulfate kills microorganism in water Download PDFInfo
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- CN108892201A CN108892201A CN201810673579.6A CN201810673579A CN108892201A CN 108892201 A CN108892201 A CN 108892201A CN 201810673579 A CN201810673579 A CN 201810673579A CN 108892201 A CN108892201 A CN 108892201A
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- potassium hydrogen
- hydrogen persulfate
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- HDMGAZBPFLDBCX-UHFFFAOYSA-M potassium;sulfooxy sulfate Chemical compound [K+].OS(=O)(=O)OOS([O-])(=O)=O HDMGAZBPFLDBCX-UHFFFAOYSA-M 0.000 title claims abstract description 53
- 230000004913 activation Effects 0.000 title claims abstract description 34
- 244000005700 microbiome Species 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 32
- 229910001428 transition metal ion Inorganic materials 0.000 title claims abstract description 26
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 16
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000010865 sewage Substances 0.000 claims abstract description 10
- 229910001448 ferrous ion Inorganic materials 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 3
- 241000588724 Escherichia coli Species 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000002779 inactivation Effects 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 29
- 239000006227 byproduct Substances 0.000 abstract description 9
- 238000005660 chlorination reaction Methods 0.000 abstract description 6
- 238000000746 purification Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 12
- 238000003760 magnetic stirring Methods 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 230000002147 killing effect Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- 239000005708 Sodium hypochlorite Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- -1 ferrous iron persulfuric acid Chemical class 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 230000004899 motility Effects 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- PUKLDDOGISCFCP-JSQCKWNTSA-N 21-Deoxycortisone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)C)(O)[C@@]1(C)CC2=O PUKLDDOGISCFCP-JSQCKWNTSA-N 0.000 description 1
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- FCYKAQOGGFGCMD-UHFFFAOYSA-N Fulvic acid Natural products O1C2=CC(O)=C(O)C(C(O)=O)=C2C(=O)C2=C1CC(C)(O)OC2 FCYKAQOGGFGCMD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940095100 fulvic acid Drugs 0.000 description 1
- 239000002509 fulvic acid Substances 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 1
- 230000002186 photoactivation Effects 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses the methods that a kind of transition metal ions collaboration UV activation potassium hydrogen persulfate kills microorganism in water, belong to water body disinfection and purification technical field in technical field of sewage.In this method, the metal ion is ferrous ion；Described is ultraviolet for 254nm length ultraviolet light, ultraviolet ray intensity 0.118mW/cm2；It is reacted under ultraviolet light irradiation with the microorganism in water body when the metal ion is existed simultaneously with the potassium hydrogen persulfate, kills the microorganism in the water body；The specific steps are：Step 1: the metal ion is added in the water body containing microorganism, metal ion dosage is 0.01-0.3mmol/L；Step 2: stirring side below in ultraviolet light irradiation is added potassium hydrogen persulfate, the molar ratio of potassium hydrogen persulfate and metal ion is 1:1.Relatively individually ultraviolet, ultraviolet potassium hydrogen persulfate and ferrous iron potassium hydrogen persulfate system are more efficient for this method, substantially reduce Chlorination Disinfection By-products, while there is no the photoreactivation phenomenons that ultraviolet independent disinfection is.
Description
Technical field
The present invention relates to water body disinfection and purification technical fields in technical field of sewage, and in particular to a kind of transition metal
The method that ion cooperates with UV activation potassium hydrogen persulfate to kill microorganism in water.
Background technique
In water supply and sewage treatment, disinfection of effluent is all necessary processing unit.Purpose is to remove in water body
Pathogenic bacteria and microorganism reduce and pass through the pathophorous risk of water.Raising and wastewater disinfection skill with people to water quality requirement
Art constantly advances, and chemical agent sterilization, photochemical method, physical method and electrochemical method are that wastewater disinfection is current
The main method generallyd use.
For liquid chlorine for a long time as a kind of existing one-hundred-year history of disinfectant application of maturation, the Disinfection Effect of liquid chlorine is to obtain
Recognized by people, meanwhile, harm caused by liquid chlorine disinfection is also increasingly recognized by people.With what is generated to chlorination
The analysis and research of by-product find that chlorine and organic matters such as humic acid, fulvic acid certain in water etc. react, and can generate a large amount of halogenated
Alkane and chlorinated organics easily cause secondary dirt so that all kinds of chlorinated organics have different degrees of raising in treated sewage
Dye.
Since continuous detection, the chlorine safety and water standard when laying in transport of chlorine disinfection by-product constantly being repaired
It orders and severization, the research for the chlorine of water and wastewater disinfection substitution technique is increasing.Ultraviolet light（UV）Disinfection is gone out because having
The features such as bacterium wide spectrum, disinfection by-products are few, easy to operate and be gradually concerned by people.
Though ultraviolet economical and efficient also has certain limitation.It is ultraviolet that lasting disinfecting power can be provided unlike chlorine, together
When, when water turbidity is big, will affect ultraviolet light appear and bactericidal effect, and there are photoreactivation phenomenon, ultraviolet irradiations
It may cause the adaptive variation of cell, to resist the disinfectant disinfection of low dosage.
Summary of the invention
1. technical problems to be solved
For the not lasting disinfecting power of Chlorination Disinfection By-products existing in the prior art and ultraviolet disinfection, there is recovery
The problems such as appearing vividly as and causing cytometaplasia, the present invention provides a kind of transition metal ions to cooperate with UV activation persulfuric acid
The method that hydrogen potassium kills microorganism in water.Relatively independent ultraviolet, the ultraviolet potassium hydrogen persulfate of this method disinfection and ferrous iron persulfuric acid
Hydrogen potassium system is more efficient, substantially reduces Chlorination Disinfection By-products and the photoreactivation phenomenon of independent ultraviolet disinfection is not present.
2. technical solution
The method purpose that a kind of transition metal ions collaboration UV activation potassium hydrogen persulfate of the invention kills microorganism in water is logical
Cross following technical scheme realization：
The method purpose that a kind of transition metal ions collaboration UV activation potassium hydrogen persulfate kills microorganism in water passes through following skill
Art scheme is realized：
A kind of method that transition metal ions collaboration UV activation potassium hydrogen persulfate kills microorganism in water, the metal ion
For ferrous ion；Described is ultraviolet for 254nm length ultraviolet light, ultraviolet ray intensity 0.118mW/cm2；The metal ion
It is reacted, is killed described with the microorganism in water body under ultraviolet light irradiation when being existed simultaneously with the potassium hydrogen persulfate
Microorganism in water body；The specific steps are：
Step 1: the metal ion is added in the water body containing microorganism, metal ion dosage is 0.01-
0.3mmol/L。
Step 2: stirring side below in ultraviolet light irradiation is added potassium hydrogen persulfate, potassium hydrogen persulfate and metal ion rub
You are than being 1:1, following reaction occurs for the whipping process：
(1)
(2)
(3)
(4)
By above-mentioned（1）~（4）Reaction, the microorganism in water body is in generationWithAnd the work of ultraviolet light
It is inactivated with lower realization.
Preferably, microorganism is Escherichia coli, excrement colibacillus group etc. in the water body.
Preferably, the water body is from water distribution or sewage plant tail water.
3. beneficial effect
Compared with prior art, the beneficial effects of the invention are as follows：
（1）A kind of method that transition metal ions collaboration UV activation potassium hydrogen persulfate kills microorganism in water of the present invention, utilizes
Ferrous ion cooperates with UV activation potassium hydrogen persulfate to generateAnd micro- life in water body is killed in ultraviolet effect itself
Object, while under ultraviolet light, in reaction systemIt can be reduced by photolysis, ensure that in system iron from
The circulation of son makes to react lasting progress, accelerates bacteria inactivation rate speed；
（2）A kind of method that transition metal ions collaboration UV activation potassium hydrogen persulfate kills microorganism in water of the present invention, for
Microorganism is Escherichia coli or excrement colibacillus group in water body, can realize killing；
（3）A kind of method that transition metal ions collaboration UV activation potassium hydrogen persulfate kills microorganism in water of the present invention, disinfection
Relatively individually ultraviolet, ultraviolet potassium hydrogen persulfate and ferrous iron potassium hydrogen persulfate system are more efficient, substantially reduce cholorination by-product
Object, while there is no the photoreactivation phenomenons that ultraviolet independent disinfection is.
Detailed description of the invention
Attached drawing 1 is the obtained different systems of specific embodiment one to Escherichia coli killing effect figure in water body, wherein █
Indicate that independent ultraviolet light kills Escherichia coli effect curve, ● indicate that UV activation potassium hydrogen persulfate kills Escherichia coli effect
Curve, ▲ indicating that ferrous ion activation potassium hydrogen persulfate kills Escherichia coli effect curve, the collaboration of ▼ ferrous ion is ultraviolet
Photoactivation potassium hydrogen persulfate kills Escherichia coli effect curve.
Specific embodiment
Tested strain：Escherichia coli are provided by Changzhou University's biomedical engineering and health science research institute.
Test water sample：10 μ L are inoculated in 5mL nutrient broth medium after the frost strain saved in -80 DEG C of refrigerators is melted
In, it is centrifuged 1min in 37 DEG C, 100r/min shaken cultivation 16h, then with 1000rpm, precipitating is resuspended in aqua sterilisa, weight
Again twice to remove culture medium.It is 10 that final precipitating, which is prepared initial concentration according to requirement of experiment,6-107The bacteria suspension of cfu/mL
As experiment water sample.
Sewage plant tail water is derived from Changzhou sewage treatment plant.
Specific embodiment below, the present invention is described in detail.
Embodiment 1
The present embodiment kills micro- life in water using one of present invention transition metal ions collaboration UV activation potassium hydrogen persulfate
Step in the method for the method of object, compare be used alone it is ultraviolet and respectively using UV activation potassium hydrogen persulfate, ferrous iron
Ion activation potassium hydrogen persulfate and transition metal ions of the invention collaboration four kinds of systems of UV activation potassium hydrogen persulfate kill water
The logarithm removal rate of Escherichia coli in body：
A. ultraviolet system is used alone：
It takes 100mL experiment water sample in the culture dish of 12cm diameter, is put into rotor, culture dish is being placed in ultraviolet collimated light beam instrument just
Lower section on magnetic stirring apparatus, makes water sample receive the ultraviolet light irradiation of setting time, this is system one.
B. UV activation potassium hydrogen persulfate system
Take 100mL experiment water sample in the culture dish of 12cm diameter, addition 1mL concentration is 10mmolL-1PMS solution, put
Enter rotor, culture dish is placed in immediately below ultraviolet collimated light beam instrument, on magnetic stirring apparatus, water sample is made to receive the ultraviolet of setting time
Line irradiation, this is system two.
C. ferrous ion activates potassium hydrogen persulfate system
Take 100mL experiment water sample in the culture dish of 12cm diameter, addition 1mL concentration is 10mmolL-1'sSolution is put
Enter rotor, culture dish is placed on magnetic stirring apparatus, rapidly joining 1mL concentration is 10mmolL-1PMS solution it is anti-to start
It answers, this is system three.
D. transition metal ions cooperates with UV activation potassium hydrogen persulfate system
Take 100mL experiment water sample in the culture dish of 12cm diameter, addition 1mL concentration is 10mmolL-1'sSolution is put
Enter rotor, culture dish is placed in immediately below ultraviolet collimated light beam instrument, on magnetic stirring apparatus, rapidly joining 1mL concentration is
10mmol·L-1PMS solution after make water sample receive setting time ultraviolet light irradiation, this be system four.
Attached drawing 1 is different systems to Escherichia coli killing effect figure in water body.Attached drawing 1 the result shows that, mistake of the invention
Crossing metal ion synergistic UV activation potassium hydrogen persulfate may be implemented the quick inactivating of Escherichia coli in water body, after reacting 30min,
The logarithm removal rate of Escherichia coli is 6.9, is higher than independent ultraviolet-sterilization, and UV activation potassium hydrogen persulfate and ferrous ion are living
Change potassium hydrogen persulfate to the logarithm removal rate of Escherichia coli.A kind of transition metal ions of invention cooperates with UV activation hydrogen persulfate
The method that potassium kills microorganism in water, relatively independent ultraviolet, the ultraviolet potassium hydrogen persulfate of disinfection and ferrous iron potassium hydrogen persulfate system
It is more efficient.
Embodiment 2
A kind of method that transition metal ions collaboration UV activation potassium hydrogen persulfate kills microorganism in water of the present embodiment, is comparison
Transition metal ions collaboration UV activation potassium hydrogen persulfate of the invention and conventional chlorination（Sodium hypochlorite）Disinfection by-products is raw
Cheng Liang.
One group of experiment is killed micro- in water using a kind of transition metal ions collaboration UV activation potassium hydrogen persulfate of the present embodiment
The method of biology, takes 100mL sewage plant tail water in the culture dish of 12cm diameter, and addition 0.3mL concentration is 10mmolL-1'sSolution is put into rotor, and culture dish is placed in immediately below ultraviolet collimated light beam instrument, on magnetic stirring apparatus, rapidly joins 0.3mL
Concentration is 10mmolL-1PMS solution after make water sample receive setting time ultraviolet light irradiation.Another group of experiment, takes 100mL
For sewage plant tail water in the culture dish of 12cm diameter, addition 0.5mL effective percentage concentration is 1gL-1Liquor natrii hypochloritis is put into and turns
Culture dish is placed on magnetic stirring apparatus by son.Haloform when measuring identical excrement colibacillus group logarithm removal rate（THMs）And halogen
Acetic acid（HAAs）Production quantity.
The data of table 1 are obtained through detection：
The different system disinfections of table 1 are THMs yield and HAAs yield
| System for handling | THMs/µg·L-1 | HAAs/µg·L-1 |
| Before processing | 1.27 | 0.38 |
| Ultraviolet+ferrous ion+potassium hydrogen persulfate | 8.25 | 6.17 |
| Sodium hypochlorite | 19.54 | 25.64 |
Table 1 the result shows that, THMs the and HAAs production quantity after adding sodium hypochlorite is transition metal ions collaboration of the invention
UV activation potassium hydrogen persulfate kills 2 ~ 4 times of the production quantity of the method for microorganism in water, transition metal ions association of the invention
The method for killing microorganism in water with UV activation potassium hydrogen persulfate is fewer than the by-product that chlorination generates.
Embodiment 3
A kind of method that transition metal ions collaboration UV activation potassium hydrogen persulfate kills microorganism in water of the present embodiment, is comparison
Transition metal ions collaboration UV activation potassium hydrogen persulfate of the invention and Conventional UV sterilize photoreactivation situation.
One group of experiment is killed micro- in water using a kind of transition metal ions collaboration UV activation potassium hydrogen persulfate of the present embodiment
The method of biology takes 100mL experiment water sample in the culture dish of 12cm diameter, and addition 1mL concentration is 10mmolL-1's
Solution is put into rotor, and culture dish is placed in immediately below ultraviolet collimated light beam instrument, and on magnetic stirring apparatus, rapidly joining 1mL concentration is
10mmol·L-1PMS solution after make water sample receive setting time ultraviolet light irradiation.Another group of experiment takes 100mL to test water
Sample is put into rotor in the culture dish of 12cm diameter, culture dish is placed in immediately below ultraviolet collimated light beam instrument, magnetic stirring apparatus
On, so that water sample is received the ultraviolet light irradiation of setting time, carries out photoreactivation experiment immediately after reaching identical logarithm removal rate.It is real
It tests in a Rectangular Water Trough and carries out, with 40W fluorescent lamp simulated solar irradiation, study the photoreactivation situation of bacterium in water, identical item
Inactivation ratio when being protected from light under part subtract it is light-exposed after inactivation ratio, Escherichia coli as under this condition recover motility rate.
The data of table 2 are obtained through detection：
The different system disinfection Escherichia coli of table 2 recover motility rate
Table 2 the result shows that, Conventional UV disinfection can generate photoreactivation phenomenon, and transition metal ions of the invention cooperates with ultraviolet work
Photoreactivation phenomenon can't be generated by changing potassium hydrogen persulfate disinfection.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (3)
1. a kind of method that transition metal ions collaboration UV activation potassium hydrogen persulfate kills microorganism in water, it is characterised in that：
The metal ion is ferrous ion；Described is ultraviolet for 254nm length ultraviolet light, ultraviolet ray intensity 0.118mW/cm2；
The metal ion and the potassium hydrogen persulfate carry out under ultraviolet light irradiation with the microorganism in water body when existing simultaneously
The microorganism in the water body is killed in reaction；The specific steps are；
Step 1: the metal ion is added in the water body containing microorganism, metal ion dosage is 0.01-
0.3mmol/L；
Step 2: stirring side below in ultraviolet light irradiation is added potassium hydrogen persulfate, the molar ratio of potassium hydrogen persulfate and metal ion
It is 1:1, following reaction occurs for the whipping process：
(1)
(2)
(3)
(4)
By above-mentioned（1）~（4）Reaction, the microorganism in water body is in generationWithAnd the effect of ultraviolet light
Lower realization inactivation.
2. a kind of transition metal ions collaboration UV activation potassium hydrogen persulfate according to claim 1 kills microorganism in water
Method, it is characterised in that：Microorganism is Escherichia coli, excrement colibacillus group etc. in the water body.
3. a kind of transition metal ions collaboration UV activation potassium hydrogen persulfate according to claim 1 kills microorganism in water
Method, it is characterised in that：The water body is from water distribution or sewage plant tail water.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110921930A (en) * | 2019-11-13 | 2020-03-27 | 河海大学 | Water treatment system for controlling ultrafiltration membrane pollution by catalyzing hydrogen persulfate through ultraviolet-coupled ferrous ions and application of water treatment system |
| CN112759060A (en) * | 2020-12-23 | 2021-05-07 | 浙江工业大学 | Hydroxylamine hydrochloride heterogeneous Fenton-like system and application thereof |
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|---|---|---|---|---|
| CN101172691A (en) * | 2007-12-11 | 2008-05-07 | 大连海事大学 | Method for processing sulphuric acid free radical oxidized water |
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2018
- 2018-06-27 CN CN201810673579.6A patent/CN108892201A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172691A (en) * | 2007-12-11 | 2008-05-07 | 大连海事大学 | Method for processing sulphuric acid free radical oxidized water |
Non-Patent Citations (1)
| Title |
|---|
| JORGE RODRÍGUEZ-CHUECA等: "Inactivation of pathogenic microorganisms in freshwater using HSO5-/UV-A LED and HSO5-/Mn+/UV-A LED oxidation processes", 《WATER RESEARCH》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921930A (en) * | 2019-11-13 | 2020-03-27 | 河海大学 | Water treatment system for controlling ultrafiltration membrane pollution by catalyzing hydrogen persulfate through ultraviolet-coupled ferrous ions and application of water treatment system |
| CN112759060A (en) * | 2020-12-23 | 2021-05-07 | 浙江工业大学 | Hydroxylamine hydrochloride heterogeneous Fenton-like system and application thereof |
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