CN101723529A - Method for removing algae and peculiar smell by adding chlorine in water treatment process - Google Patents
Method for removing algae and peculiar smell by adding chlorine in water treatment process Download PDFInfo
- Publication number
- CN101723529A CN101723529A CN200910242199A CN200910242199A CN101723529A CN 101723529 A CN101723529 A CN 101723529A CN 200910242199 A CN200910242199 A CN 200910242199A CN 200910242199 A CN200910242199 A CN 200910242199A CN 101723529 A CN101723529 A CN 101723529A
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- Prior art keywords
- algae
- water
- water treatment
- chlorine
- peculiar smell
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 69
- 241000195493 Cryptophyta Species 0.000 title claims abstract description 56
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000000460 chlorine Substances 0.000 title claims abstract description 27
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 27
- 238000001556 precipitation Methods 0.000 claims abstract description 15
- 230000001112 coagulating effect Effects 0.000 claims abstract description 11
- 230000001954 sterilising effect Effects 0.000 claims abstract description 7
- 238000005660 chlorination reaction Methods 0.000 claims description 8
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims description 8
- 230000015271 coagulation Effects 0.000 claims description 7
- 238000005345 coagulation Methods 0.000 claims description 7
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims description 6
- 239000003651 drinking water Substances 0.000 abstract description 6
- 235000020188 drinking water Nutrition 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 6
- 238000009533 lab test Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 6
- 238000004062 sedimentation Methods 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 3
- 229960001701 chloroform Drugs 0.000 description 3
- 239000002384 drinking water standard Substances 0.000 description 3
- 238000000247 postprecipitation Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003619 algicide Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a method for removing algae and peculiar smell by adding chlorine in a water treatment process, which relates to a method for removing algae and peculiar smell produced by the algae in the drinking water treatment in particular. The water treatment process comprises the following steps: performing coagulative precipitation on raw water, filtering in a filter, sterilizing and conveying to users. The method is characterized in that in the water treatment process, the chlorine is added into the water before the water is fed into a coagulative precipitation tank; and after the chlorine is added and the solution is reacted for 10 hours, the filtering process of the water treatment in the filter is carried out. Through a large amount of laboratory experiments and industrial experiments, the method of the invention fulfills the aims of removing the algae and the peculiar smell by changing the chlorine adding position and controlling the residual chlorine before filtering under the condition that the conventional water treatment process and the operating mode are changed little; the algae removing efficiency reaches over 95 percent; and the effect of treating water stink produced by removing the algae is better.
Description
Technical field
A kind of method of removing algae and peculiar smell by adding chlorine of water treatment procedure relates in a kind of Drinking Water processing, particularly removes the method for the peculiar smell of algae and the generation of removal algae.
Background technology
Algae is by a kind of lower plant that grows in the water of Organic pollutants, the existence of algae all produces considerable influence to water quality and the normal operation of water supply process, along with the aggravation of water pollution and the raising of living standards of the people, the processing to algae in life water treatment procedure more and more comes into one's own.
From bibliographical information, remove the algae cell process in the water treatment at present and mainly contain chemical method, Microfilter, air supporting, direct filtration, enhanced coagulation precipitation except that algae, biological treatment etc.
1. chemical method
Chemical method control algae can carry out at waterhead area, also can carry out in the water treatment plant, and states such as the U.S., Australia often adopt this growth of method control algae in lake, reservoir.Algicide commonly used has copper sulfate, chlorine, dioxide peroxide etc., and it is better that dioxide peroxide removes the algae effect, but cost is higher; The concentration of copper sulfate of control algal grown generally needs greater than 1.0mg/L, and mantoquita concentration rises in the water at this moment, thereby the careful use of palpus; Prechlorination is usually used in the water technology, to kill algae, makes it be easy to remove in follow-up water technology, but prechlorination makes disinfection byproduct (DBP) increase in the water, also is a kind of method of doing something against one's will.Chemical method is used comparatively flexible, has increased in the water the disadvantageous chemical substance of health but make.
2. Microfilter removes algae
Microfilter is mainly in order to remove zooplankton and algae in the water.Clearance to algae is 51～61%, but to turbidity, colourity, COD
MnClearance all very low.
3. air floatation alga removing
Algae density is generally less, thereby the difficult precipitation of its flco, adopts air supporting then can obtain and removes the algae effect preferably.The problem of air supporting method is that algae-residue is difficult to handle, and stink is heavy near the air flotation pool, and operating environment is poor.
4. direct filtration is removed algae
Because the lake water turbidity is lower, thereby adopt direct filtration to handle sometimes.The water quality accident appears easily, and must SC during application.
5. the enhanced coagulation precipitation is removed algae
The coagulating sedimentation removal efficient to algae usually is lower, if but the coagulating sedimentation of routine is strengthened, then can improve greatly except that algae efficient.
6, biological treatment removes algae
In recent years, both at home and abroad research has extensively and profoundly been carried out in the application of biological treatment in water supply purification, but special emphasis is mainly to the removal of organism, ammonia nitrogen and determining of operational condition, the research of relevant algae control is not still not deeply.
Above method can be removed most of algae, but to removing the peculiar smell DeGrain that algae causes.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists at above-mentioned prior art, provide that a kind of processing algae is effective, cost is low, the peculiar smell of the water that algae is produced is removed and is made good use of, and disinfection byproduct (DBP) changes the method for the removing algae and peculiar smell by adding chlorine of unconspicuous water treatment procedure.
The objective of the invention is to be achieved through the following technical solutions.
A kind of method of removing algae and peculiar smell by adding chlorine of water treatment procedure, its water treatment procedure comprises: with the process of former water coagulation precipitation, filter, sterilization, delivery user, it is characterized in that in water treatment procedure, the process of chlorination is selected to enter and adds before the coagulative precipitation tank, behind the chlorination afterreaction 10 hours, enter the precipitation process of water treatment again.
The method of the removing algae and peculiar smell by adding chlorine of a kind of water treatment procedure of the present invention is characterized in that the chlorine that adds is liquid chlorine, adds in the entry by the rotor chlorinating machine in water; Add-on is 0.3～0.5 gram/ton water.
The method of the removing algae and peculiar smell by adding chlorine of a kind of water treatment procedure of the present invention, the chlorine residue when it is characterized in that the control filter of process of its removing algae and peculiar smell by adding chlorine is at 0.05～0.1PPM.
The method of the removing algae and peculiar smell by adding chlorine of a kind of water treatment procedure of the present invention realizes removing algae and goes the purpose of distinguishing the flavor of by changing chlorine residue before chlorination position and the control filter.
Because chemical method can bring very big influence to Drinking Water water quality, may cause life water unable to drink to be used; Common prechlorination is owing to the timed interval that enters the filter tank is too short, and the removing algae and peculiar smell effect is bad.Additive method not only will increase initial cost and facility investment, and the efficient height is unstable and bad to the water stink road treatment effect of algae generation.
Method of the present invention, through a large amount of laboratory tests and industrial test, realized under the condition of little change conventional water treatment process and operation scheme, realize removing algae and go the purpose of distinguishing the flavor of by changing chlorine residue before chlorination position and the control filter, remove algae efficient and reach more than 95%, it is better to remove the water stink road treatment effect that produces because of algae.
Embodiment
A kind of method of removing algae and peculiar smell by adding chlorine of water treatment procedure, its water treatment procedure comprises: with the process of former water coagulation precipitation, filter, sterilization, delivery user, in water treatment procedure, the process of chlorination is selected to enter and adds before the coagulative precipitation tank, behind the chlorination afterreaction 10 hours, enter the filter process of water treatment again.The chlorine that adds in water adds in the entry by the rotor chlorinating machine for for liquid chlorine; Add-on is 0.3～0.5 gram/ton water.Chlorine residue when the control of the process of removing algae and peculiar smell by adding chlorine enters filter is at 0.05～0.1PPM.
Embodiment 1
(liquid chlorine adds in the entry by the rotor chlorinating machine to add chlorine entering of water treatment before the coagulative precipitation tank; Add-on is 0.3 gram/ton water, react after 10 hours, the chlorine residue of post precipitation is 0.05PPM, water behind the coagulating sedimentation is carried out filter, sterilization, delivery user again, Drinking Water after the processing has reached national drinking water standard, the distinctive water stink of no algae, trichloromethane concentration is up to the standards, and meets national standard.
Embodiment 2
(liquid chlorine adds in the entry by the rotor chlorinating machine to add chlorine between the coagulation of water treatment and precipitation flow process; Add-on is 0.4 gram/ton water, react after 10 hours, the chlorine residue of post precipitation is 0.06PPM, water behind the coagulating sedimentation is carried out filter, sterilization, delivery user again, Drinking Water after the processing has reached national drinking water standard, the distinctive water stink of no algae, trichloromethane concentration is up to the standards, and meets national standard.
Embodiment 3
(liquid chlorine adds in the entry by the rotor chlorinating machine to add chlorine between the coagulation of water treatment and precipitation flow process; Add-on is 0.5 gram/ton water), react after 10 hours, the chlorine residue of post precipitation is 0.10PPM, water behind the coagulating sedimentation is carried out filter, sterilization, delivery user again, Drinking Water after the processing has reached national drinking water standard, the distinctive water stink of no algae, trichloromethane concentration is up to the standards, and meets national standard.
Claims (3)
1. the method for the removing algae and peculiar smell by adding chlorine of a water treatment procedure, its water treatment procedure comprises: with the process of former water coagulation precipitation, filter, sterilization, delivery user, it is characterized in that in water treatment procedure, the process of chlorination is selected to enter and adds before the coagulative precipitation tank, behind the chlorination afterreaction 10 hours, enter the filter process of water treatment again.
2. the method for the removing algae and peculiar smell by adding chlorine of a kind of water treatment procedure according to claim 1 is characterized in that the chlorine that adds is liquid chlorine, adds in the entry by the rotor chlorinating machine in water; Add-on is 0.3～0.5 gram/ton water.
3. the method for the removing algae and peculiar smell by adding chlorine of a kind of water treatment procedure according to claim 1, the chlorine residue when it is characterized in that the control filter of process of its removing algae and peculiar smell by adding chlorine is at 0.05～0.1PPM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910242199A CN101723529A (en) | 2009-12-09 | 2009-12-09 | Method for removing algae and peculiar smell by adding chlorine in water treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910242199A CN101723529A (en) | 2009-12-09 | 2009-12-09 | Method for removing algae and peculiar smell by adding chlorine in water treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101723529A true CN101723529A (en) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910242199A Pending CN101723529A (en) | 2009-12-09 | 2009-12-09 | Method for removing algae and peculiar smell by adding chlorine in water treatment process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451703A (en) * | 2019-08-16 | 2019-11-15 | 丽江尚源水业有限公司 | A kind of detection of disinfection by-product of drinking water and minimizing technology |
| CN111807558A (en) * | 2020-07-23 | 2020-10-23 | 上海城市水资源开发利用国家工程中心有限公司 | Multi-point chlorination process for drinking water |
| CN115626703A (en) * | 2022-10-31 | 2023-01-20 | 山东大学 | Method for efficiently removing algae by using monochloramine preoxidation enhanced coagulation |
-
2009
- 2009-12-09 CN CN200910242199A patent/CN101723529A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451703A (en) * | 2019-08-16 | 2019-11-15 | 丽江尚源水业有限公司 | A kind of detection of disinfection by-product of drinking water and minimizing technology |
| CN111807558A (en) * | 2020-07-23 | 2020-10-23 | 上海城市水资源开发利用国家工程中心有限公司 | Multi-point chlorination process for drinking water |
| CN115626703A (en) * | 2022-10-31 | 2023-01-20 | 山东大学 | Method for efficiently removing algae by using monochloramine preoxidation enhanced coagulation |
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Application publication date: 20100609 |