CN106745571A - A kind of method for treating water using lead ion dissolution during single persulfate control chloramines disinfection - Google Patents
A kind of method for treating water using lead ion dissolution during single persulfate control chloramines disinfection Download PDFInfo
- Publication number
- CN106745571A CN106745571A CN201710050704.3A CN201710050704A CN106745571A CN 106745571 A CN106745571 A CN 106745571A CN 201710050704 A CN201710050704 A CN 201710050704A CN 106745571 A CN106745571 A CN 106745571A
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- China
- Prior art keywords
- chloramines
- single persulfate
- water
- lead ion
- disinfection
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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
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- 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
- C02F2303/18—Removal of treatment agents after treatment
- C02F2303/185—The treatment agent being halogen or a halogenated compound
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/14—Treatment of water in water supply networks, e.g. to prevent bacterial growth
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- 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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
A kind of method for treating water using lead ion dissolution during single persulfate control chloramines disinfection, it is related to method for treating water, solves the problems, such as lead ion dissolution during chloramines disinfection.Method for treating water of the invention:Added in accessing pending water chloramines carry out disinfection treatment when, add single persulfate solution, it is kept stirring for, using the oxidisability of single persulfate, the reproducibility product that chloramines selfdecomposition is produced is oxidized to nitrate, so as to inhibit reproducibility product to the dissolving and reducing of brown lead oxide in wall erosion thing, that is, complete the in-situ control to lead ion dissolution.The reduzate that list persulfate of the invention is capable of Quick Oxidation chloramines selfdecomposition is nitrate, realizes effective control of lead ion during chloramines disinfection;And single persulfate does not consume chloramines, can be coexisted with chloramines;Single persulfate formally lists drinking water disinfection agent catalogue in by country simultaneously, can be applied in water treatment plant and pipe network;Simple to operate, processing cost is low.
Description
Technical field
The present invention relates to a kind of method for treating water, and in particular to the water of lead ion dissolution during a kind of control chloramines disinfection
Processing method.
Background technology
Chloramines is used as disinfectant, and good stability, penetration capacity is stronger than chlorine, and the duration in pipe network is long, can be effective
Harmful microbe breeding and the formation of biomembrane in control pipe network, seldom produce haloform (THMS) and halogen acetic acid
(HAAs), produce carcinogenic mutagenic compound also fewer.But chloramines is unstable, easily slow selfdecomposition produces reproducibility product
(such as:Azanol), by brown lead oxide (PbO in wall erosion thing2) dissolving and reducing be lead ion (Pb2+) be discharged into drinking water, make
Into the secondary pollution of water quality.At present, lead ion (Pb during control chloramines disinfection2+) dissolution main method be in pipe network plus
Enter phosphate, slow down chloramines to brown lead oxide (PbO in wall erosion thing2) dissolution, but phosphate is used as biological life
The factor long, can promote the growth of microorganism in pipe network.
The content of the invention
It is an object of the invention to provide a kind of water using lead ion dissolution during single persulfate control chloramines disinfection
Processing method, the reduzate of chloramines selfdecomposition can be by brown lead oxide in wall erosion thing during solution chloramines disinfection
(PbO2) dissolving and reducing be lead ion (Pb2+) it is discharged into the problem in drinking water.
The method for treating water of lead ion dissolution is during a kind of persulfate control chloramines disinfection using list of the invention
Realized by following steps:Added in accessing pending water chloramines carry out disinfection treatment when, while add single persulfate solution,
State is kept stirring for, that is, completes the method for treating water using lead ion during single persulfate control chloramines disinfection, its
In, the concentration of single persulfate is 0.1~100mg/L, and the accessing pending water is water or sewage disposal plant effluent after filtration treatment.
In a kind of method for treating water using lead ion dissolution during single persulfate control chloramines disinfection of the invention
Single persulfate is one or two mixtures constituted by any ratio in Potassium peroxysulfate, single sodium peroxydisulfate.
It is of the invention a kind of using Pb during single persulfate control chloramines disinfection2+Described in the method for treating water of dissolution
Single persulfate is replaced by the complex salt of single persulfate and alkali, wherein the mol ratio of single persulfate and alkali is 1:1~10, alkali
Addition can adjust the pH value of water treatment system 6~9, be conducive to single persulfate to ionize;Wherein, alkali is potassium hydroxide, hydrogen
One kind or wherein several mixtures in sodium oxide molybdena, calcium hydroxide, sodium carbonate, potassium carbonate, sodium acid carbonate, saleratus.
A kind of original using the method for treating water of lead ion dissolution during single persulfate control chloramines disinfection of the present invention
Reason:During chloramines disinfection, because chloramines is unstable, easily slow selfdecomposition generation reproducibility product, such as azanol, by wall erosion
Brown lead oxide (PbO in thing2) dissolving and reducing be lead ion (Pb2+) be discharged into drinking water, cause the secondary pollution of water quality;When
Carry out adding single persulfate during chloramines disinfection, the reproducibility for being produced chloramines selfdecomposition using the oxidisability of single persulfate is produced
Thing is oxidized to nitrate, so as to inhibit reproducibility product to brown lead oxide (PbO in wall erosion thing2) dissolving and reducing.
A kind of method for treating water tool using lead ion dissolution during single persulfate control chloramines disinfection of the invention
Have the advantage that:(1) single persulfate formally lists drinking water disinfection agent catalogue in by country, can be in water treatment plant and pipe
Applied in net;(2) reduzate that single persulfate is capable of Quick Oxidation chloramines selfdecomposition is nitrate, it is possible to achieve chlorine
Pb in amine disinfecting process2+Effective control;(3) single persulfate does not consume chloramines, can be coexisted with chloramines;(4) it is simple to operate
Convenient, processing cost is low.
Brief description of the drawings
Fig. 1 is Pb in present invention experiment2+Stripping curve figure;Wherein, Pb when ■ represents that chloramines is individually aoxidized2+Dissolution
Curve, Pb represents that chloramines is added with Potassium peroxysulfate simultaneously when2+Stripping curve.
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 lead ion during single persulfate control chloramines disinfection
The method for treating water of dissolution, itself through the following steps that realize:Added in accessing pending water chloramines carry out disinfection treatment when, together
When add single persulfate solution, be kept stirring for state, that is, complete it is described using single persulfate control chloramines disinfection during
The method for treating water of lead ion, wherein, the concentration of single persulfate is 0.1~100mg/L, and the accessing pending water is filtration treatment
Water or sewage disposal plant effluent afterwards.
A kind of method for treating water using lead ion dissolution during single persulfate control chloramines disinfection of present embodiment
Principle:During chloramines disinfection, because chloramines is unstable, easily slow selfdecomposition generation reproducibility product, such as azanol, by tube wall
Brown lead oxide (PbO in erosion2) dissolving and reducing be lead ion (Pb2+) be discharged into drinking water, cause the secondary dirt of water quality
Dye;Single persulfate is added when chloramines disinfection is carried out, using single persulfate oxidisability by chloramines selfdecomposition produces and also
Immunogenic product is oxidized to nitrate, so as to inhibit reproducibility product to brown lead oxide (PbO in wall erosion thing2) dissolving also
It is former.
A kind of water process side using lead ion dissolution during single persulfate control chloramines disinfection of present embodiment
Method has advantages below:(1) single persulfate formally lists drinking water disinfection agent catalogue in by country, can be in water treatment plant
Applied with pipe network;(2) reduzate that single persulfate is capable of Quick Oxidation chloramines selfdecomposition is nitrate, Ke Yishi
Pb during existing chloramines disinfection2+Effective control;(3) single persulfate does not consume chloramines, can be coexisted with chloramines;(4) operate
Simple and convenient, processing cost is low.
Specific embodiment two:Present embodiment from unlike specific embodiment one:In described accessing pending water
Single persulfate concentration is 0.2~90mg/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 single persulfate concentration be 0.5~80mg/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
Single persulfate concentration in reason water is 1~70mg/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
Single persulfate concentration in reason water is 2~60mg/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
Single 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
Single 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
Single 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
Single 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:Single persulfate
It is one or two mixtures constituted by any ratio in Potassium peroxysulfate, single sodium peroxydisulfate.Other steps and parameter and tool
One of body implementation method one to nine is identical.
Specific embodiment 11:Present embodiment is from single persulfate unlike specific embodiment one to ten by list
The complex salt of persulfate and alkali replaces, wherein the mol ratio of single persulfate and alkali is 1:1~10, wherein, alkali is hydroxide
One kind in potassium, NaOH, calcium hydroxide, sodium carbonate, potassium carbonate, sodium acid carbonate, carbon saleratus is wherein several by appointing
Anticipate than the mixture for constituting, single persulfate be one or two in Potassium peroxysulfate, single sodium peroxydisulfate by any than composition
Mixture.Other steps and parameter are identical with one of specific embodiment one to ten.
The addition of alkali can adjust the pH value of water treatment system 6~9 in present embodiment, be conducive to persulfate to ionize.
The mol ratio of persulfate and alkali is preferably 1 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:
1L distilled water is taken, PbO is added2, concentration is 5g/L, is kept stirring for, and adds chloramines, and concentration is 5mg/L, while adding
Potassium peroxysulfate solution, concentration is 5mg/L, and the differential responses time takes out sample using Pb in ICP measure solution2+Concentration.Experiment
Result is shown in accompanying drawing.From accompanying drawing, when chloramines is individually aoxidized (■), with the carrying out in reaction time, Pb2+Concentration gradually increases,
When 5h is reacted, concentration can reach 50 μ g/L;When chloramines and Potassium peroxysulfate are added simultaneously (), it is nearly no detectable
Pb2+Concentration.
As can be seen here, using Pb during single persulfate control chloramines disinfection2+The water process mode of dissolution is effectively may be used
Capable.
Claims (10)
1. a kind of single persulfate of utilization controls the method for treating water of lead ion dissolution during chloramines disinfection, it is characterised in that one
Kind using the method for treating water of lead ion during single persulfate control chloramines disinfection through the following steps that realizing:Treating
Added in treatment water chloramines carry out disinfection treatment when, while adding single persulfate solution, be kept stirring for state, that is, complete described
Using the method for treating water of lead ion during single persulfate control chloramines disinfection, wherein, the concentration of single persulfate is 0.1
~100mg/L, the accessing pending water is water or sewage disposal plant effluent after filtration treatment.
2. at a kind of water using lead ion dissolution during single persulfate control chloramines disinfection according to claim 1
Reason method, it is characterised in that single persulfate be one or two in Potassium peroxysulfate, single sodium peroxydisulfate by any than composition
Mixture.
3. according to claim 1 and 2 a kind of using lead ion dissolution during single persulfate control chloramines disinfection
Method for treating water, it is characterised in that single persulfate concentration is 0.5~90mg/L.
4. according to claim 1 and 2 a kind of using lead ion dissolution during single persulfate control chloramines disinfection
Method for treating water, it is characterised in that single persulfate concentration is 1~80mg/L.
5. according to claim 1 and 2 a kind of using lead ion dissolution during single persulfate control chloramines disinfection
Method for treating water, it is characterised in that single persulfate concentration is 5~50mg/L.
6. according to claim 1 and 2 a kind of using lead ion dissolution during single persulfate control chloramines disinfection
Method for treating water, it is characterised in that single persulfate concentration is 10~40mg/L.
7. according to claim 1 and 2 a kind of using lead ion dissolution during single persulfate control chloramines disinfection
Method for treating water, it is characterised in that single persulfate concentration is 20~30mg/L.
8. a kind of single persulfate of utilization controls the method for treating water of lead ion dissolution during chloramines disinfection, it is characterised in that one
Kind using the method for treating water of lead ion during single persulfate control chloramines disinfection through the following steps that realizing:Treating
Added in treatment water chloramines carry out disinfection treatment when, while add the mixed solution of the complex salt of single persulfate and alkali, keep
Stirring, that is, complete the method for treating water using lead ion during single persulfate control chloramines disinfection, wherein, it is single
The mol ratio of persulfate and alkali is 1:1~10, alkali is potassium hydroxide, NaOH, calcium hydroxide, sodium carbonate, potassium carbonate, carbon
One kind or wherein several by any mixture than composition in sour hydrogen sodium, saleratus, the accessing pending water is filtration treatment
Water or sewage disposal plant effluent afterwards.
9. at a kind of water using lead ion dissolution during single persulfate control chloramines disinfection according to claim 8
Reason method, be characterised by single persulfate for one or two in Potassium peroxysulfate, single sodium peroxydisulfate by any than composition
Mixture.
10. the single persulfate of a kind of utilization according to claim 8 controls the water of lead ion dissolution during chloramines disinfection
Processing method, it is characterised in that the mol ratio of single persulfate and alkali is 1:3~8.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108178369A (en) * | 2017-12-28 | 2018-06-19 | 深圳职业技术学院 | A kind of method for removing lead ion in water removal using single persulfate reinforcing manganese sand |
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CN102139949A (en) * | 2011-02-16 | 2011-08-03 | 哈尔滨工业大学 | Method for removing trace pollutants in water by intensified PMS (phosphate monoester starch) composite technology |
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 |
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 CN201710050704.3A patent/CN106745571A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102139949A (en) * | 2011-02-16 | 2011-08-03 | 哈尔滨工业大学 | Method for removing trace pollutants in water by intensified PMS (phosphate monoester starch) composite technology |
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 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108178369A (en) * | 2017-12-28 | 2018-06-19 | 深圳职业技术学院 | A kind of method for removing lead ion in water removal using single persulfate reinforcing manganese sand |
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