CN102633332A - Green water treatment technique for controlling attachment of microbial films on surfaces of devices and pipelines in water bodies - Google Patents
Green water treatment technique for controlling attachment of microbial films on surfaces of devices and pipelines in water bodies Download PDFInfo
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- CN102633332A CN102633332A CN2012101291467A CN201210129146A CN102633332A CN 102633332 A CN102633332 A CN 102633332A CN 2012101291467 A CN2012101291467 A CN 2012101291467A CN 201210129146 A CN201210129146 A CN 201210129146A CN 102633332 A CN102633332 A CN 102633332A
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Abstract
The invention discloses an electromagnetic treatment technique for controlling the attachment of microbial films on the surfaces of devices and pipelines in water bodies. Namely, through adopting an electromagnetic water treater and arranging an operating induction coil of the electromagnetic water treater at a water inlet of a water treatment device or pipeline, under the action of an electromagnetic field, the theoretic adhesion work between a microbial film on the surface of the water treatment device or pipeline and the surface of the water treatment device or pipeline is reduced, thereby preventing the formation of the microbial film on the surface of the water treatment device or pipeline or achieving a stripping effect on the formed microbial film. The electromagnetic treatment technique for controlling the attachment of microbial films on the surfaces of devices and pipelines in water bodies, disclosed by the invention, has the characteristics of environmental protection, low treatment cost and high efficiency, and further reduces the corrosion of microbial films on metals; and meanwhile, the heat exchange efficiency of a cooling water system can be improved, or the operating efficiency of a water treatment device can be improved.
Description
Technical field
The present invention relates to a kind of mikrobe and exist controlling microbial film in the system, belong to water treatment micro-organism control field in the electromagnetic treatment technology that water treating equipment and pipe surface adhere to.
Background technology
Condenser is the important device of power plant's power generation process, and its water coolant is many to be main with surface water, reuse water, and often contains multiple mikrobe in these water, and mikrobe can make corrosive pipeline at cooling tube inwall growth and breeding, causes the accident.Modal corrodibility bacterium is sulphate reducing bacteria (SRB) in recirculating cooling water system; Can be sulfonium ion with the sulfate reduction in the water body in its growth metabolism process; Promote corrosion of metal; Its long-term breeding simultaneously also can form microbial film at the cooling tube tube wall, and not only influence is conducted heat and simultaneously tube metal had stronger aggressiveness.
The chemical agent method for disinfection is adopted in the control of mikrobe usually in the water coolant, but how can bring the secondary pollution that deleterious chemical by-product causes water quality treatment into.And the electromagnetic treatment technology is a kind of novel mechanical water treatment technology of energy-conservation relatively, environmental protection.Because it has numerous advantages such as less investment, convenient in application, nontoxic pollution-free, can be used for the scale inhibition and the sterilization of recirculating cooling water system.In addition, research shows that the concentration of corrosion resisting property and sulfonium ion of metal in the water coolant is closely related, and one of characteristic that contains the SRB environment is to have certain density sulfonium ion, so the existence of SRB must exert an influence to the corrosion resisting property of metal in the environment.
Equally; In other water treatment system such as r-o-water manufacturing system; Owing to adhering to of microbial film will have a strong impact on r-o-system water efficient; Treatment process commonly used is at present handled for adopting chemical bactericide and stripper, and the use of chemical bactericide and stripper will influence the life-span of reverse osmosis membrane to a certain extent, and processing cost is high simultaneously.
Summary of the invention
The objective of the invention is to provide a kind of environmental protection, control in the water body by metal, water treating equipment that non-metallic material (like organic macromolecular material) constitute and the electromagnetic treatment technology of pipe surface microorganic adhesion thereof at a low price, efficiently in order to solve above-mentioned technical problem.
Know-why of the present invention
A kind ofly control the electromagnetic treatment technology that water treating equipment and pipe surface microbial film adhere in the water body; Promptly adopt a kind of electromagnetic water treatment device; The work ruhmkorff coil of electromagnetic water treatment device is installed on the water inlet of water treating equipment or pipeline; Under electromagnetic field effect; Make the theoretical work of adhesion of water treating equipment or pipe surface microbial film and water treating equipment and pipe surface reduce, thereby prevent the formation of water treating equipment and pipe surface microbial film or established microbial film is played the effect of peeling off.
Technical scheme of the present invention
A kind ofly control the electromagnetic treatment technology that water treating equipment and pipe surface microbial film adhere in the water body; Promptly adopt a kind of frequency conversion DC pulse electromagnetism water treating device; And the working coil of frequency conversion DC pulse electromagnetism water treating device is installed on the water inlet of water treating equipment or pipeline, and with frequency water treating equipment and pipe surface microbial film are carried out the Electromagnetic Continuous processing through the impulse of current intensity of coil by the dc pulse generator control of frequency conversion DC pulse electromagnetism water treating device;
Described water treating equipment are r-o-water manufacturing system or recirculating cooling water system;
The material of described water treating equipment and pipeline is metallic substance or nonmetallic organic polymer material;
Described metallic substance is stainless steel, brass, titanium pipe or carbon steel;
Described frequency conversion DC pulse electromagnetism water treating device, its power supply is electric main 220V, 50Hz, and WV is direct current 10-15V, and output rating is 100-300W, and the frequency conversion scope is 20Hz ~ 75KHz, the carrier frequency frequency is 1MHz.
Beneficial effect of the present invention
A kind of electromagnetic treatment technology that water treating equipment and pipe surface microbial film adhere in the water body of controlling of the present invention; Owing to adopt the more weak electromagnetic treatment of germicidal action can reduce the theoretical work of adhesion of microbial film and water treating equipment and pipe surface in the water body; Thereby reduce microbial film adhering at water treating equipment and pipe surface; Or peel off the microbial film that has formed at water treating equipment and pipe surface; Compare with traditional chemical agent treatment technology, have environmental protection, cheap, the characteristics of high efficiency of processing cost, and further reduce microbial film corrosion of metal.
In addition; A kind of electromagnetic treatment technology that water treating equipment and pipe surface microbial film adhere in the water body of controlling of the present invention; Adopt the more weak electromagnetic treatment technology of germicidal action; When treating water treatment facility and the established microbial film of pipe surface,, can improve the operational efficiency of the heat exchanger effectiveness or the raising water treating equipment of cooling water system owing to need not shut down operation.
Embodiment
Through embodiment the present invention is described in further detail below, but do not limit the present invention.
Used sulphate reducing bacteria is received wound by Bei Jingbei and is joined Bioteknologisk Institut and provide in the present embodiment.
Simulation water coolant used in the present embodiment (is mainly formed: 20mg/L Ca
2+, 6 mg/L Mg
2+, 122mg/L HCO
3 -, 360mg/L SO
4 2-, 300mg/L Cl
-, 380mg/L Na
+)
Used frequency conversion DC pulse electromagnetism water treating device is the ZS-SP III type mechanical water treater that Shanghai Zhengang Micro-Electronic Co., Ltd. produces in the embodiment of the invention.
The adhesion amount of the microbial film that weighting method is calculated calculates by following formula:
Wherein
M is the microbial film adhesion amount, m
0Be (not containing microbial film) material weight before testing, m
1For testing back (containing microbial film) material weight.
Embodiment 1
Containing the simulation water coolant of 10mg/L sulphate reducing bacteria (main composition: 20mg/L Ca
2+, 6 mg/L Mg
2+, 122mg/L HCO
3 -, 360mg/L SO
4 2-, 300mg/L Cl
-, 380mg/L Na
+) in, adopt above-mentioned electromagnetic water treatment device to handle 5 seconds, sterilizing rate is 5.2%, the theoretical work of adhesion of microbial film and 304 stainless steel surface is from handling preceding 19.62mJm
-2Drop to 19.20mJm
-2, the adhesion amount that weighting method obtains microbial film descends 26%.
Embodiment 2
Containing the simulation water coolant of 10mg/L sulphate reducing bacteria (main composition: 20mg/L Ca
2+, 6mg/L Mg
2+, 122mg/L HCO
3 -, 360mg/L SO
4 2-, 300 mg/L Cl
-, 380mg/L Na
+) in, adopt above-mentioned electromagnetic water treatment device to handle 5min, sterilizing rate is 11.3%, the theoretical work of adhesion of microbial film and 304 stainless steel surface is from handling preceding 19.62mJm
-2Drop to 18.03mJm
-2, the adhesion amount that weighting method obtains the stainless steel surface microbial film descends 95%.
Embodiment 3
Containing the simulation water coolant of 10mg/L sulphate reducing bacteria (main composition: 20mg/L Ca
2+, 6mg/L Mg
2+, 122mg/L HCO
3 -, 360mg/L SO
4 2-, 300mg/L Cl
-, 380mg/L Na
+) in, adopt above-mentioned electromagnetic water treatment device to handle 20min, sterilizing rate is 43.7%, the theoretical work of adhesion of microbial film and 304 stainless steel surface is from handling preceding 19.62mJm
-2Drop to 9.37mJm
-2, the adhesion amount that weighting method obtains the stainless steel surface microbial film is 0.
Embodiment 4
Have in the reverse osmosis membrane equipment (adopting the Tao Shi reverse osmosis membrane) of urban district, the use Shanghai tap water (willow Pu Running-water Company) of 10mg/L sulphate reducing bacteria in inoculation; Adopt above-mentioned electromagnetic water treatment device to handle 5min; Sterilizing rate is 6.4%, and the theoretical work of adhesion on microbial film and reverse osmosis membrane surface is from handling preceding 25.94mJm
-2Drop to 19.41mJm
-2, the adhesion amount that weighting method obtains reverse osmosis membrane surface microorganism film descends 97%.
Embodiment 5
Have in the reverse osmosis equipment of urban district, use Shanghai tap water (willow Pu Running-water Company) of 10mg/L sulphate reducing bacteria in inoculation; Adopt above-mentioned electromagnetic water treatment device to handle 20min; Sterilizing rate is 50.2%, and the theoretical work of adhesion on microbial film and reverse osmosis membrane (adopting the Tao Shi reverse osmosis membrane) surface is from handling preceding 25.94mJm
-2Drop to 10.56mJm
-2, the adhesion amount that weighting method obtains reverse osmosis membrane surface microorganism film drops to 0.
Embodiment 6
Have in urban district, the Shanghai tap water (willow Pu Running-water Company) of 10mg/L sulphate reducing bacteria in inoculation, adopt above-mentioned electromagnetic water treatment device to handle 20min, sterilizing rate is 50.2%, and the theoretical work of adhesion of microbial film and brass surfaces is from handling preceding 23.36mJm
-2Drop to 9.82mJm
-2, the adhesion amount that weighting method obtains the brass surfaces microbial film drops to 0.
Embodiment 7
In the reverse osmosis equipment that uses Jiangsu Xinhai Power Plant recirculated water intake water sample; Adopt above-mentioned electromagnetic water treatment device to handle 20min; Sterilizing rate is 38.3%, and the theoretical work of adhesion on microbial film and reverse osmosis membrane (adopting the Tao Shi reverse osmosis membrane) surface is from handling preceding 25.94mJm
-2Drop to 11.67mJm
-2, the adhesion amount that weighting method obtains reverse osmosis membrane surface microorganism film drops to 0.
To sum up embodiment 1 ~ 7 is said; Can find out a kind of green water technology that equipment and pipe surface microbial film adhere in the water body of controlling of the present invention; Not only can prevent the formation of water treating equipment and pipe surface microbial film, and also can play the effect of peeling off established microbial film.
Foregoing is merely the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all should belong to protection scope of the present invention.
Claims (4)
1. control the electromagnetic treatment technology that water treating equipment and pipe surface microbial film adhere in the water body for one kind; It is characterized in that adopting a kind of frequency conversion DC pulse electromagnetism water treating device; And the work ruhmkorff coil of frequency conversion DC pulse electromagnetism water treating device is installed on the water inlet of water treating equipment or pipeline, and with frequency water treating equipment and pipe surface microbial film are carried out the Electromagnetic Continuous processing through the impulse of current intensity of coil by the dc pulse generator control of frequency conversion DC pulse electromagnetism water treating device;
The material of described water treating equipment and pipeline is metallic substance or nonmetallic organic polymer material;
Described metallic substance is stainless steel, brass, titanium pipe or carbon steel.
2. a kind of electromagnetic treatment technology that water treating equipment and pipe surface microbial film adhere in the water body of controlling as claimed in claim 1 is characterized in that described water treating equipment are r-o-water manufacturing system or recirculating cooling water system.
3. according to claim 1 or claim 2 a kind of controls the electromagnetic treatment technology that water treating equipment and pipe surface microbial film adhere in the water body, it is characterized in that described frequency conversion DC pulse electromagnetism water treating device is a ZS-SP III type mechanical water treater.
4. a kind of electromagnetic treatment technology that water treating equipment and pipe surface microbial film adhere in the water body of controlling as claimed in claim 3; The power supply that it is characterized in that described frequency conversion DC pulse electromagnetism water treating device is electric main 220V, 50Hz; WV is direct current 10-15V; Output rating is 100-300W, and the frequency conversion scope is 20Hz ~ 75KHz, and the carrier frequency frequency is 1MHz.
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| CN2012101291467A CN102633332A (en) | 2012-04-28 | 2012-04-28 | Green water treatment technique for controlling attachment of microbial films on surfaces of devices and pipelines in water bodies |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408115A (en) * | 2013-08-21 | 2013-11-27 | 上海电力学院 | Treatment method for controlling corrosion of sulfate reducing bacteria to metals in cooling water system |
| CN104628095A (en) * | 2015-01-28 | 2015-05-20 | 谢崇泽 | Drinking water activating device |
| CN112064033A (en) * | 2020-09-08 | 2020-12-11 | 中山大学 | Method for cooperatively controlling metal corrosion caused by microorganisms and application thereof |
Citations (3)
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| CN1377839A (en) * | 2001-03-30 | 2002-11-06 | 中国科学院生态环境研究中心 | Frequency changing type micro computer water treating device |
| US20070029261A1 (en) * | 2005-08-02 | 2007-02-08 | Chew Hwee H | Method and device for water treatement using an electromagnetic field |
| CN101866156A (en) * | 2010-07-21 | 2010-10-20 | 中国地质大学（武汉） | LABVIEW-based variable frequency water treatment control system |
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2012
- 2012-04-28 CN CN2012101291467A patent/CN102633332A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377839A (en) * | 2001-03-30 | 2002-11-06 | 中国科学院生态环境研究中心 | Frequency changing type micro computer water treating device |
| US20070029261A1 (en) * | 2005-08-02 | 2007-02-08 | Chew Hwee H | Method and device for water treatement using an electromagnetic field |
| CN101866156A (en) * | 2010-07-21 | 2010-10-20 | 中国地质大学（武汉） | LABVIEW-based variable frequency water treatment control system |
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| 《环境科学学报》 20040331 李梅等 脉冲磁场水处理技术在杀菌、灭藻方面的研究 第260-264页 1,3 第24卷, 第2期 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408115A (en) * | 2013-08-21 | 2013-11-27 | 上海电力学院 | Treatment method for controlling corrosion of sulfate reducing bacteria to metals in cooling water system |
| CN104628095A (en) * | 2015-01-28 | 2015-05-20 | 谢崇泽 | Drinking water activating device |
| CN112064033A (en) * | 2020-09-08 | 2020-12-11 | 中山大学 | Method for cooperatively controlling metal corrosion caused by microorganisms and application thereof |
| CN112064033B (en) * | 2020-09-08 | 2021-09-28 | 中山大学 | Method for cooperatively controlling metal corrosion caused by microorganisms and application thereof |
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Application publication date: 20120815 |