CN106745570A - A kind of utilization wall erosion thing catalysis persulfate strengthens the method for treating water of liquid chlorine/chloramines disinfection - Google Patents
A kind of utilization wall erosion thing catalysis persulfate strengthens the method for treating water of liquid chlorine/chloramines disinfection Download PDFInfo
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- CN106745570A CN106745570A CN201710050370.XA CN201710050370A CN106745570A CN 106745570 A CN106745570 A CN 106745570A CN 201710050370 A CN201710050370 A CN 201710050370A CN 106745570 A CN106745570 A CN 106745570A
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- China
- Prior art keywords
- persulfate
- liquid chlorine
- chloramines
- water
- wall erosion
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Classifications
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- 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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic 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
Abstract
A kind of utilization wall erosion thing catalysis persulfate strengthens the method for treating water of liquid chlorine/chloramines disinfection, is related to method for treating water, solves the problems, such as liquid chlorine, chloramines disinfection to microorganism Second propagation in bacteria inactivation rate not thorough, pipe network.Method for treating water of the invention：Liquid chlorine is added in water after filtration treatment or chloramines carries out disinfection when processing, add persulfate solution simultaneously, stirring, the potentiometric titrations produced using wall erosion thing catalysis persulfate, the microorganism or bacterium that can not be killed to sterilization inactivate, organic matter present in pipe network is aoxidized simultaneously, that is, is completed.The present invention has advantages below：Persulfate does not consume liquid chlorine, chloramines, wall erosion thing is catalyzed it and produces potentiometric titrations, realize the thorough inactivation to microorganism, prevent the Second propagation in pipe network, ensure the biological stability of pipe network, it is simple to operate, persulfate formally lists drinking water disinfection agent catalogue in by country simultaneously, can be applied in Water purification.
Description
Technical field
The present invention relates to a kind of method for treating water, and in particular to a kind of method for treating water of reinforcing liquid chlorine/chloramines disinfection.
Background technology
Drinking water safety and hygienic issues are the great social safety and livelihood issues of mankind's concern, directly affect people's
It is healthy.Microorganism is the pathophorous major reason of water, and the removal of pathogenic microorganisms is to ensure that water quality is pacified with control in water
Full basis.
Liquid chlorine, chloramines are the most frequently used two kinds of disinfectants in Disinfection Procedure of drinking Water, by acting on bacterium surface and wearing
Saturating cell membrane enters in thalline, and aoxidizing mycoprotein causes bacterial death, plays a part of sterilizing.So disinfectant
Meaning is not singly to kill microorganism in output water, while including containing the purpose for suppressing microorganisms reproduction yet.Drinking Water in China health
Pipe network tip residual chlorine amount specified in standard is more than 0.05mg/L, mainly controls the Second propagation of microorganism in pipe network.Although
Can keep certain chlorine residue in pipe network water, but in output water remaining bacterium (such as：Giardia lamblia stiles, Cryptosporidium), sterilization after
The injured bacterium in part is (such as：Acinetobacter calcoaceticus, pseudomonad, arthrobacterium, bacillus etc.) obtain nutrient matrix after in pipe network
Meeting growth and breeding forms biomembrane, causes drinking water secondary pollution, causes user end water quality to degenerate.Therefore, how to control
The Second propagation of microorganism in pipe network, it is ensured that biological stability in pipe network, in ensureing that drinking water safety is current water process research
The problem for being eager to solve.
At present, the iron tubing such as cast iron pipe and coating steel pipe is still largely present in China's water supply network, due to there occurs
Serious corrosion, a thick layer wall erosion thing is formd in inner-walls of duct, contains the oxidation of the metals such as a large amount of iron, copper, manganese, zinc
Thing.If can be utilized wall erosion thing as the catalyst of persulfate, then will be obtained in water treatment procedure
Good effect, i.e., it is simple to operate, processing cost, the pollution that will not also produce extra catalyst to bring are saved again.
The content of the invention
It is an object of the invention to provide the water that a kind of utilization wall erosion thing catalysis persulfate strengthens liquid chlorine/chloramines disinfection
Processing method, solves the problems, such as liquid chlorine, chloramines disinfection to microorganism Second propagation in bacteria inactivation rate not thorough, pipe network.
A kind of method for treating water of utilization wall erosion thing catalysis persulfate reinforcing liquid chlorine/chloramines disinfection of the invention is
Realized by following steps：Liquid chlorine is added in water after filtration treatment or chloramines carries out disinfection when processing, while adding over cure
Acid salt solution, is kept stirring for state, that is, complete the utilization wall erosion thing catalysis persulfate reinforcing liquid chlorine/chloramines disinfection
Method for treating water, wherein, the concentration of persulfate is 1~100mg/L.
In a kind of method for treating water of utilization wall erosion thing catalysis persulfate reinforcing liquid chlorine/chloramines disinfection of the invention
The persulfate is one or two mixtures being mixed by any ratio in peroxy-monosulfate, peroxydisulfate, wherein mistake
One sulfate is one or two mixtures being mixed by any ratio in permonosulphuric acid potassium, permonosulphuric acid sodium, peroxydisulfate
It is one or two mixtures being mixed by any ratio in potassium persulfate, sodium persulfate.
In a kind of method for treating water of utilization wall erosion thing catalysis persulfate reinforcing liquid chlorine/chloramines disinfection of the invention
The persulfate is replaced by the complex salt of persulfate and alkali, and wherein the mol ratio of persulfate and alkali is 1:1~10, alkali
Addition can adjust the pH value of water treatment system 6~9, be conducive to persulfate to ionize；Wherein, persulfate is peroxy-monosulfate
And/or peroxydisulfate, alkali is potassium hydroxide, NaOH, calcium hydroxide, sodium carbonate, potassium carbonate, sodium acid carbonate, bicarbonate
One kind or wherein several mixtures being mixed by any ratio in potassium；Peroxy-monosulfate is in permonosulphuric acid potassium, permonosulphuric acid sodium
One or two mixtures being mixed by any ratio, peroxydisulfate be potassium persulfate, sodium persulfate in one kind or
Two kinds of mixtures being mixed by any ratio.
A kind of original of the method for treating water of utilization wall erosion thing catalysis persulfate reinforcing liquid chlorine/chloramines disinfection of the present invention
Reason：Persulfate produces potentiometric titrations under the catalytic action of wall erosion thing (metal oxide such as iron, copper, manganese, zinc),
Potentiometric titrations utilize its strong oxidizing property, injured bacterium after the microorganism that can not be killed to liquid chlorine or chloramines disinfection or sterilization
Inactivated, while oxidation processes are carried out to organic matter present in pipe network, the nutrients needed for cut-out microorganism diauxic growth
Matter, it is ensured that pipe network biological stability.
A kind of method for treating water tool of utilization wall erosion thing catalysis persulfate reinforcing liquid chlorine/chloramines disinfection of the invention
Have the advantage that：(1) persulfate formally lists drinking water disinfection agent catalogue in by country, can be in water treatment plant and pipe network
Middle application；(2) persulfate does not consume liquid chlorine, chloramines, can be coexisted with liquid chlorine, chloramines；(3) using the strong of potentiometric titrations
Oxidisability, is thoroughly inactivated to microorganism, prevents its Second propagation in pipe network, it is ensured that pipe network biological stability；(4) utilize
Wall erosion thing increases light source or adds catalyst as the catalyst of persulfate without extra, simple to operate, treatment
Low cost.
Brief description of the drawings
Fig. 1 is to be catalyzed the design sketch that single persulfate removes bacterium using wall erosion thing in testing.
Specific embodiment
Technical solution of the present invention is not limited to act specific embodiment set forth below, also including between each specific embodiment
Any combination.
Specific embodiment one：Present embodiment is for a kind of using wall erosion thing catalysis persulfate reinforcing liquid chlorine/chlorine
Amine sterilization method for treating water, itself through the following steps that realize：Liquid chlorine or chloramines are added in water after filtration treatment to be carried out
When disinfecting, while adding persulfate solution, state is kept stirring for, that is, completes the utilization wall erosion thing catalysis over cure
Hydrochlorate strengthens the method for treating water of liquid chlorine/chloramines disinfection, wherein, the concentration of persulfate is 1~100mg/L.
A kind of utilization wall erosion thing catalysis persulfate of present embodiment strengthens the method for treating water of liquid chlorine/chloramines disinfection
Principle：Persulfate produces sulfate radical certainly under the catalytic action of wall erosion thing (metal oxide such as iron, copper, manganese, zinc)
By base, potentiometric titrations utilize its strong oxidizing property, injured after the microorganism that can not be killed to liquid chlorine or chloramines disinfection or sterilization
Bacterium inactivated, while carry out oxidation processes to organic matter present in pipe network, needed for cut-out microorganism diauxic growth
Nutriment, it is ensured that pipe network biological stability.
A kind of utilization wall erosion thing catalysis persulfate of present embodiment strengthens the water process side of liquid chlorine/chloramines disinfection
Method has advantages below：(1) persulfate by country formally list drinking water disinfection agent catalogue in, can water treatment plant with
Applied in pipe network；(2) persulfate does not consume liquid chlorine, chloramines, can be coexisted with liquid chlorine, chloramines；(3) potentiometric titrations are utilized
Strong oxidizing property, microorganism is thoroughly inactivated, prevent its Second propagation in pipe network, it is ensured that pipe network biological stability；(4)
It is simple to operate without additionally increasing light source or adding catalyst by the use of wall erosion thing as the catalyst of persulfate,
Processing cost is low.
Specific embodiment two：Present embodiment from unlike specific embodiment one：In described accessing pending water
Persulfate concentration is 1.5~90mg/L.Other are identical with specific embodiment one.
Specific embodiment three：Present embodiment from unlike specific embodiment one or two：Described accessing pending water
In persulfate concentration be 2~80mg/L.Other are identical with specific embodiment one or two.
Specific embodiment four：Unlike one of present embodiment and specific embodiment one to three：It is described to wait to locate
Persulfate concentration in reason water is 3~70mg/L.Other are identical with one of specific embodiment one to three.
Specific embodiment five：Unlike one of present embodiment and specific embodiment one to four：It is described to wait to locate
Persulfate concentration in reason water is 4~60mg/L.Other are identical with one of specific embodiment one to four.
Specific embodiment six：Unlike one of present embodiment and specific embodiment one to five：It is described to wait to locate
Persulfate concentration in reason water is 5~50mg/L.Other are identical with one of specific embodiment one to five.
Specific embodiment seven：Unlike one of present embodiment and specific embodiment one to six：It is described to wait to locate
Persulfate concentration in reason water is 10~40mg/L.Other are identical with one of specific embodiment one to six.
Specific embodiment eight：Unlike one of present embodiment and specific embodiment one to seven：It is described to wait to locate
Persulfate concentration in reason water is 15~30mg/L.Other are identical with one of specific embodiment one to seven.
Specific embodiment nine：Unlike one of present embodiment and specific embodiment one to eight：It is described to wait to locate
Persulfate concentration in reason water is 20mg/L.Other are identical with one of specific embodiment one to eight.
Specific embodiment ten：Unlike one of present embodiment and specific embodiment one to nine：Persulfate is
Peroxy-monosulfate and/or peroxydisulfate.Other steps and parameter are identical with one of specific embodiment one to nine.
When persulfate is the mixture of peroxy-monosulfate and peroxydisulfate in present embodiment, both are with any than mixed
Close.Wherein peroxy-monosulfate is one or two mixtures being mixed by any ratio in permonosulphuric acid potassium, permonosulphuric acid sodium, mistake
Dithionate is one or two mixtures being mixed by any ratio in potassium persulfate, sodium persulfate.
Specific embodiment 11：Persulfate unlike one of present embodiment and specific embodiment one to ten is
Peroxy-monosulfate, wherein peroxy-monosulfate are one or two the mixture in permonosulphuric acid potassium, permonosulphuric acid sodium.Other steps
Rapid and parameter is identical with one of specific embodiment one to ten.
When peroxy-monosulfate is mixture in present embodiment, with any than mixing.
Specific embodiment 12：Present embodiment and persulfate unlike specific embodiment one to one of 11
It is peroxydisulfate, wherein peroxydisulfate is one or two the mixture in potassium persulfate, sodium persulfate.Other
Step and parameter are identical with specific embodiment one to one of 11.
When peroxydisulfate is mixture in present embodiment, with any than mixing.
Specific embodiment 13：Present embodiment and persulfate unlike specific embodiment one to one of 12
It is peroxy-monosulfate and peroxydisulfate, wherein peroxy-monosulfate is one or two in permonosulphuric acid potassium, permonosulphuric acid sodium
Mixture, peroxydisulfate be potassium persulfate, sodium persulfate in one or two mixture.Other steps and ginseng
Number is identical with specific embodiment one to one of 12.
Mixed with any ratio between peroxy-monosulfate and peroxydisulfate in present embodiment, peroxy-monosulfate is mixture
When, with any than mixing, when peroxydisulfate is mixture, with any than mixing.
Specific embodiment 14：Present embodiment from unlike specific embodiment one to 13：Persulfate by
The complex salt of persulfate and alkali replaces, and wherein the mol ratio of persulfate and alkali is 1:1~10, wherein, persulfate was
One sulfate and/or peroxydisulfate, alkali are potassium hydroxide, NaOH, calcium hydroxide, sodium carbonate, potassium carbonate, bicarbonate
One kind or wherein several mixtures in sodium, carbon saleratus.Other steps and parameter and specific embodiment one to 13
One of it is identical.
When persulfate is peroxy-monosulfate and peroxydisulfate in present embodiment, with any than mixing.Alkali is for wherein
During several mixture, with any than mixing.
The addition of alkali can adjust the pH value of water treatment system 6~9 in present embodiment, be conducive to persulfate to ionize,
So that inducing the enhancing of halogenated disinfection by-products capacity of decomposition.
The mol ratio of persulfate and alkali is preferably 1 in present embodiment:3~8, it is still further preferred that 1:5.
Specific embodiment 15：Present embodiment from unlike specific embodiment one to 14：Persulfate by
The complex salt of peroxy-monosulfate and alkali replaces, and wherein the mol ratio of peroxy-monosulfate and alkali is 1:1~10, wherein peroxy-monosulfate
It is the mixture of one or more in permonosulphuric acid potassium, permonosulphuric acid sodium and permonosulphuric acid ammonia.Other steps and parameter and tool
Body implementation method one to one of 14 is identical.
When peroxy-monosulfate is wherein several mixtures in present embodiment, with any than mixing.
The mol ratio of peroxy-monosulfate and alkali is preferably 1 in present embodiment:3~8, it is still further preferred that 1:5.
Specific embodiment 16：Present embodiment from unlike specific embodiment one to 15：Persulfate by
The complex salt of peroxydisulfate and alkali replaces, and wherein the mol ratio of persulfate and alkali is 1:1~10, wherein peroxydisulfate is
The mixture of one or more in potassium persulfate, sodium persulfate and peroxy-disulfuric acid ammonia.Other steps and parameter with it is specific
Implementation method one to one of 15 is identical.
When peroxydisulfate is mixture in present embodiment, with any than mixing.
The mol ratio of peroxydisulfate and alkali is preferably 1 in present embodiment:3~8, it is still further preferred that 1:5.
Specific embodiment 17：Present embodiment is from persulfate unlike specific embodiment one to 16 by mistake
The complex salt of one sulfate, peroxydisulfate and alkali replaces, wherein peroxy-monosulfate and peroxydisulfate integral molar quantity and alkali
Mole ratio is 1:1~10, wherein peroxy-monosulfate is the one kind in permonosulphuric acid potassium, permonosulphuric acid sodium and permonosulphuric acid ammonia
Or several mixtures, peroxydisulfate is one or more in potassium persulfate, sodium persulfate and peroxy-disulfuric acid ammonia
Mixture.
When peroxy-monosulfate is wherein several mixtures in present embodiment, with any than mixing.In present embodiment
When peroxydisulfate is mixture, with any than mixing.
Peroxy-monosulfate and peroxydisulfate integral molar quantity are preferably 1 with the mole ratio of alkali in present embodiment:3~
8, it is still further preferred that 1:5.
Beneficial effects of the present invention can be verified by following experiment：
500mL distilled water is taken, bacterium is added, total bacterial concentration living is 1.3 × 104Pipe network inwall is taken from cfu/mL, addition
Corrosive pipeline thing, concentration is 10mg/L, is kept stirring for, add Potassium peroxysulfate solution, concentration is 50mg/L, during differential responses
Between take out sample determination always live bacterial concentration change.Experimental result is shown in accompanying drawing.From accompanying drawing, with entering for reaction time
OK, total bacterial concentration living is gradually reduced, and reacts 120min, and total bacterial concentration living is less than 100cfu/mL, meets China's life and drinks
Water hygiene standard.
As can be seen here, it is have using the method for treating water of wall erosion thing catalysis persulfate reinforcing liquid chlorine/chloramines disinfection
Effect is feasible.
Claims (10)
1. a kind of utilization wall erosion thing catalysis persulfate strengthens the method for treating water of liquid chlorine/chloramines disinfection, it is characterised in that
A kind of method for treating water of utilization wall erosion thing catalysis persulfate reinforcing liquid chlorine/chloramines disinfection is through the following steps that realize
's：Liquid chlorine is added in water after filtration treatment or chloramines carries out disinfection when processing, while adding persulfate solution, be kept stirring for
State, that is, complete the method for treating water that the utilization wall erosion thing catalysis persulfate strengthens liquid chlorine/chloramines disinfection, wherein,
The concentration of persulfate is 1~100mg/L.
2. a kind of utilization wall erosion thing catalysis persulfate according to claim 1 strengthens the water of liquid chlorine/chloramines disinfection
Processing method, it is characterised in that persulfate is mixed by any ratio for one or two in peroxy-monosulfate, peroxydisulfate
Mixture, wherein peroxy-monosulfate be one or two in permonosulphuric acid potassium, permonosulphuric acid sodium be mixed by any ratio it is mixed
Compound, peroxydisulfate is one or two mixtures being mixed by any ratio in potassium persulfate, sodium persulfate.
3. a kind of utilization wall erosion thing catalysis persulfate according to claim 1 and 2 strengthens liquid chlorine/chloramines disinfection
Method for treating water, it is characterised in that persulfate concentration is 1.5~90mg/L.
4. a kind of utilization wall erosion thing catalysis persulfate according to claim 1 and 2 strengthens liquid chlorine/chloramines disinfection
Method for treating water, it is characterised in that persulfate concentration is 2~80mg/L.
5. a kind of utilization wall erosion thing catalysis persulfate according to claim 1 and 2 strengthens liquid chlorine/chloramines disinfection
Method for treating water, it is characterised in that persulfate concentration is 5~50mg/L.
6. a kind of utilization wall erosion thing catalysis persulfate according to claim 1 and 2 strengthens liquid chlorine/chloramines disinfection
Method for treating water, it is characterised in that persulfate concentration is 10~40mg/L.
7. a kind of utilization wall erosion thing catalysis persulfate according to claim 1 and 2 strengthens liquid chlorine/chloramines disinfection
Method for treating water, it is characterised in that persulfate concentration is 20~30mg/L.
8. a kind of utilization wall erosion thing catalysis persulfate strengthens the method for treating water of liquid chlorine/chloramines disinfection, it is characterised in that
A kind of method for treating water of utilization wall erosion thing catalysis persulfate reinforcing liquid chlorine/chloramines disinfection is through the following steps that realize
's：Liquid chlorine is added in water after filtration treatment or chloramines carries out disinfection when processing, while the mixing for adding persulfate and alkali is molten
Liquid, is kept stirring for state, that is, complete the water process that the utilization wall erosion thing catalysis persulfate strengthens liquid chlorine/chloramines disinfection
Method, wherein, the mol ratio of persulfate and alkali is 1:1~10, alkali is potassium hydroxide, NaOH, calcium hydroxide, carbonic acid
One kind or wherein several mixtures being mixed by any ratio in sodium, potassium carbonate, sodium acid carbonate, saleratus.
9. a kind of utilization wall erosion thing catalysis persulfate according to claim 8 strengthens the water of liquid chlorine/chloramines disinfection
Processing method, is characterised by persulfate for one or two in peroxy-monosulfate, peroxydisulfate are mixed by any ratio
Mixture, wherein peroxy-monosulfate are one or two mixing being mixed by any ratio in permonosulphuric acid potassium, permonosulphuric acid sodium
Thing, peroxydisulfate is one or two mixtures being mixed by any ratio in potassium persulfate, sodium persulfate.
10. a kind of utilization wall erosion thing catalysis persulfate according to claim 8 strengthens the water of liquid chlorine/chloramines disinfection
Processing method, it is characterised in that the mol ratio of persulfate and alkali is 1:3~8.
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|---|---|---|---|---|
| CN102020350A (en) * | 2011-01-04 | 2011-04-20 | 华中师范大学 | Processing method of heterocatalysis persulfate Fenton oxidation water |
| CN104150562A (en) * | 2014-08-23 | 2014-11-19 | 哈尔滨工业大学 | Method for disinfecting filtered water from water plant with cooperation between medium-pressure ultraviolet catalyzing peroxymonosulfate and chloramine |
| CN105084511A (en) * | 2015-08-10 | 2015-11-25 | 河海大学 | Method for degrading organic waste water by activating persulfate through manganese-cobalt composite oxide |
| CN105191979A (en) * | 2014-06-10 | 2015-12-30 | 李菠 | Powder for oxidizing and infecting drinking water and preparation method thereof |
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2017
- 2017-01-23 CN CN201710050370.XA patent/CN106745570A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020350A (en) * | 2011-01-04 | 2011-04-20 | 华中师范大学 | Processing method of heterocatalysis persulfate Fenton oxidation water |
| CN105191979A (en) * | 2014-06-10 | 2015-12-30 | 李菠 | Powder for oxidizing and infecting drinking water and preparation method thereof |
| CN104150562A (en) * | 2014-08-23 | 2014-11-19 | 哈尔滨工业大学 | Method for disinfecting filtered water from water plant with cooperation between medium-pressure ultraviolet catalyzing peroxymonosulfate and chloramine |
| CN105084511A (en) * | 2015-08-10 | 2015-11-25 | 河海大学 | Method for degrading organic waste water by activating persulfate through manganese-cobalt composite oxide |
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Effective date of registration: 20210422 Address after: 130000 No. 5088 Xincheng street, Jilin, Changchun Applicant after: JILIN JIANZHU University Address before: 150080 Harbin, Heilongjiang, Nangang District Road, No. 52 Applicant before: HARBIN University OF SCIENCE AND TECHNOLOGY |
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Application publication date: 20170531 |