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 PDF

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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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CN
China
Prior art keywords
chloramines
single persulfate
water
lead ion
disinfection
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Pending
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CN201710050704.3A
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Chinese (zh)
Inventor
江进
周扬
高源�
庞素艳
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Harbin Institute of Technology
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Harbin Institute of Technology
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Priority to CN201710050704.3A priority Critical patent/CN106745571A/en
Publication of CN106745571A publication Critical patent/CN106745571A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/50Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/76Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/06Controlling or monitoring parameters in water treatment pH
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/18Removal of treatment agents after treatment
    • C02F2303/185The treatment agent being halogen or a halogenated compound
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00Location of water treatment or water treatment device
    • C02F2307/14Treatment 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

At a kind of water using lead ion dissolution during single persulfate control chloramines disinfection Reason method
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.
CN201710050704.3A 2017-01-23 2017-01-23 A kind of method for treating water using lead ion dissolution during single persulfate control chloramines disinfection Pending CN106745571A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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