CN1297493C - Method and system for inhibiting blue-green algae gowth in water using ultraviolet radiation - Google Patents
Method and system for inhibiting blue-green algae gowth in water using ultraviolet radiation Download PDFInfo
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- CN1297493C CN1297493C CNB2004100515593A CN200410051559A CN1297493C CN 1297493 C CN1297493 C CN 1297493C CN B2004100515593 A CNB2004100515593 A CN B2004100515593A CN 200410051559 A CN200410051559 A CN 200410051559A CN 1297493 C CN1297493 C CN 1297493C
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Abstract
The present invention relates to a method for suppressing the growth of blue-green algae in water through the irradiation of ultraviolet light. The method comprises the steps: the ultraviolet light generated by an ultraviolet light irradiating device is used for irradiating the blue-green algae in the water for 1 to 5 min, the wave length of the ultraviolet light is positioned at an ultraviolet C wave band, ultraviolet rays with the wave length of 254 nm are mainly used, and the intensity is from 3.0 to 10 W/m; the irradiating device can be arranged on a pleasure boat, a plurality of ultraviolet lamps of the irradiating device penetrate through the bottom surface of the pleasure boat at the point of 0.05 to 0.5 m below water surface, the pleasure boat walks in a reciprocating way, and all the ultraviolet lamps generate ultraviolet light to irradiate the blue-green algae in the water. The ultraviolet light in the C wave band and with low intensity is used for irradiating to effectively suppress the growth of the blue-green algae in the water, and the water bloom of the blue-green algae is prevented. When the algae are suppressed, other aquatic organisms can not be damaged. Simultaneously, ultrasonic treatment can be cooperated to cause the suppressing effect of the blue-green algae to be ideal. The operation is carried out under the conditions of normal temperature and normal pressure, medicaments do not required to add, and secondary pollution can not be generated.
Description
Technical field
The invention belongs to environmental protection technical field, particularly a kind of method and system of utilizing ultraviolet light irradiation to suppress blue algae growth in the water.
Background technology
Water resources is the base substance that the mankind depend on for existence, and along with population growth and social economy's develop rapidly, the requirement of water sharply increases, and water resource pollution is also serious day by day.Year 2000 questionnairee is bright, and 14 have entered the eutrophication state in 18 main lakes of China, as Dian Chi, Taihu Lake, the West Lake, East Lake, South Lake, the XuanWu Lake, Bohai Sea Gulf, Laizhou Wan, Jiulongjiang River, Huangpu River etc.Eutrophication water is easy to break out wawter bloom, makes water taste become stench unpleasant, reduces the transparency of water body, increases turbidity, causes anaerobic state.The part algae can also secrete the algae toxin, causes biological and human the poisoning, still possible carcinogenic substance.
For relying on eutrophication water is the city of drinking water source, and situation is particularly serious.Because all disadvantageous effects of algae have all been done more research to eutrophication problem both at home and abroad.
Aspect suppressing blue algae growth, administering blue-green alga bloom, main method is changed water law, chemical method chemical agent, plant extraction liquids etc. such as (promptly adopt remove algae) copper agents, biological process (considering feeding fish etc. such as putting in a suitable place to breed).The whole bag of tricks all has its apparent in view limitation: it is huge to change spray expense, cures the symptoms, not the disease; Utilize chemical agents such as copper agent, weedicide to destroy alga cells, not only operational administrative bothers, and causes secondary pollution easily, threatens other biological groups such as fish; The bio operon method is general only effective in the interior lake of 0.05～0.15mg/L scope to total phosphorus, and must think over the potential hazard of introducing fish.
UV-light is a kind of light wave radiation with certain penetration power and lethality.Uv-radiation grows inhibited to hydrobiont, mainly show aspects such as morphological structure, photosynthesis, nutritional-physiological.Algae and planktonic organism poor growth, the vigor of moving about occur and phenomenon such as weaken after treatment with ultraviolet light.Ultraviolet radiation has in various degree destruction to the photosynthetic pigments of different blue-green algaes.At present, utilize ultraviolet light irradiation to suppress blue algae growth in the water, prevent that the scheme of blue-green alga bloom from not seeing that relevant document discloses.
Summary of the invention
The above-mentioned deficiency that water law, chemical method and biological process etc. suppress the blue algae growth technology of changing in view of traditional the invention provides a kind of method and system of utilizing ultraviolet light irradiation to suppress blue algae growth in the water, to prevent blue-green alga bloom.
The method that the present invention utilizes ultraviolet light irradiation to suppress blue algae growth in the water is to realize like this, with the ultraviolet light irradiation water body of ultraviolet light irradiation device generation or the blue-green algae 1～5min in the recirculated water, wherein ultraviolet wavelength is positioned at the ultraviolet C wave band, based on the ultraviolet ray of 254nm wavelength, intensity is 3.0～10W/m
2, lower intensity can guarantee effective algal control, avoids the injury to other biology in the water body simultaneously.
When utilizing the bigger water surface of ultraviolet light irradiation, can adopt floating type uv irradiation mode.The ultraviolet light irradiation device is installed on the pleasure-boat that floats on the water surface, make some UV-lamp of ultraviolet light irradiation device pass 0.05～0.5m place, submergence underwater, pleasure-boat bottom surface, pleasure-boat back and forth moves about, and described some UV-lamp produce UV-light the blue-green algae in the water body is carried out ultraviolet light irradiation.In the ultraviolet light irradiation process, can carry out ultrasonication to the blue-green algae in the water body by the ultrasonic equipment of described pleasure-boat bottom surface simultaneously.
When to flowing water irradiation, many groups UV-lamp of ultraviolet light irradiation device is installed on 0.05～0.5m place, underwater at interval, in same group of UV-lamp all UV-lamp at interval, be arranged in parallel, produce UV-light by described many group UV-lamp the blue-green algae in the water body carried out ultraviolet light irradiation.
The floating type ultraviolet light irradiation of realizing aforesaid method suppresses the blue-green alga bloom system, comprise the pleasure-boat that floats on the water surface, the ultraviolet light irradiation device of being made up of the power pack of some UV-lamp and ultraviolet lamp is installed on pleasure-boat, described some UV-lamp are passed 0.05～0.5m place, submergence underwater, pleasure-boat bottom surface, the ultraviolet light irradiation device has 5～50 UV-lamp, and these UV-lamp are at pleasure-boat bottom uniform distribution.
The present invention utilize the C-band ultraviolet light irradiation suppress blue-green algae in the water growth, prevent blue-green alga bloom.Ultraviolet radiation is grown inhibited to hydrobiont, algae poor growth, the vigor of moving about occur and phenomenon such as weakens after treatment with ultraviolet light, and ultraviolet radiation has in various degree destruction to the photosynthetic pigments of different blue-green algaes.Ultraviolet ray intensity is 3.0～10W/m
2, belong to and hang down by force, in algal control, can not damage, but also synergistic supersonic wave processing or aeration processing make inhibition blue-green algae effect better simultaneously other hydrobiont.
Device structure is simple, and volume is little, and is stable, and promote in the area that suits very much threatened by eutrophication in the drinking water source.Operation need not add medicament at normal temperatures and pressures, can not cause secondary pollution.
Show through test, to water body or recirculated water irradiation 3～5min, can effectively suppress the growth of blue-green algae with the C-band UV-light of certain intensity, inhibition was for up to 10 days; Still for being untreated 10% of water sample, chlorophyll concentration is 20% of the water sample that is untreated to blue-green algae concentration after 10 days.
Description of drawings
Fig. 1 is that its floating type ultraviolet light irradiation suppresses the blue-green alga bloom system schematic;
Fig. 2 is that its a kind of fixed ultraviolet light irradiation suppresses the blue-green alga bloom system schematic;
Fig. 3 is that its another kind of fixed ultraviolet light irradiation suppresses the blue-green alga bloom system schematic.
Embodiment
Further specify below in conjunction with the concrete system construction drawing of realizing the inventive method.
UV-light is a kind of light wave radiation with certain penetration power and lethality.The present invention utilizes ultraviolet C wave band UV-light to the direct irradiation certain hour of the blue-green algae in water body or the recirculated water, and wherein based on the ultraviolet ray of 254nm wavelength, intensity is 3.0～10W/m
2, irradiation time is 1～5min, lower intensity can guarantee effective algal control fully, has avoided other biology in the injury water body simultaneously.
Figure 1 shows that its floating type ultraviolet light irradiation suppresses the blue-green alga bloom system schematic.This system comprises the pleasure-boat that floats on the water surface, and the ultraviolet light irradiation device that the power pack B by some UV-lamp A and ultraviolet lamp forms is installed on pleasure-boat, and described some UV-lamp A pass 0.05～0.5m place, submergence underwater, pleasure-boat bottom surface.Common described ultraviolet light irradiation device has 5～50 UV-lamp, and these UV-lamp are at pleasure-boat bottom uniform distribution.
A is a ultraviolet lamp among Fig. 1, can adopt the common commercial ultraviolet lamp tube, the ultraviolet wavelength that produces is positioned at the ultraviolet C wave band, based on the ultraviolet ray of 254nm wavelength, power is selected according to practical situation, submergence underwater 0.05～0.5m can evenly install 5～50 ultraviolet lamps in the pleasure-boat bottom according to actual needs, guarantees that output rating is 3.0～10W/m
2B is the power supply system of ultraviolet lamp, is installed in the pleasure-boat afterbody.
Also can ultrasonic equipment C be installed in the pleasure-boat bottom, some transverters of ultrasonic equipment appear the pleasure-boat bottom surface, directly apply ultrasonic wave by some transverters and carry out ultrasonication to water.Wherein D is the power supply of pleasure-boat or drive unit etc.Also can aeration treatment facility etc. be installed, so that aeration method and ultraviolet light irradiation act on water body simultaneously in the pleasure-boat bottom.Native system is suitable for large and small all kinds of water body.
When utilizing the bigger water surface of ultraviolet light irradiation, can realize by means of Fig. 1 system.The ultraviolet light irradiation device is installed on the pleasure-boat that floats on the water surface, make some UV-lamp A of ultraviolet light irradiation device pass 0.05～0.5m place, submergence underwater, pleasure-boat bottom surface, by drive unit D pleasure-boat is back and forth moved about, described some UV-lamp A produce the C-band UV-light blue-green algae in the water body are carried out ultraviolet light irradiation, and irradiation time can be regulated by the translational speed of setting pleasure-boat.Because algae grows at surface layer of water, so the UV-lamp submergence is no more than 0.5m, when acting on water body, can also provide certain lighting effects.In the ultraviolet light irradiation process, can carry out ultrasonication or aeration to the blue-green algae in the water body by the ultrasonic equipment C or the aeration treatment facility of pleasure-boat bottom surface simultaneously, to improve whole action effect.In the typically used, frequency of ultrasonic is 20～100kHz, and power is calculated according to the processing water meter, guarantees that institute's intensity that applies is at 0.1-10kW/m
2In.
Fig. 2 is that its a kind of fixed ultraviolet light irradiation suppresses the blue-green alga bloom system schematic.System comprises many group UV-lamp A and control device B, each is organized UV-lamp intervals all in UV-lamp, is set in parallel on the lamp bracket, and through WATER REPELLENT, the axis of all UV-lamp is parallel with water (flow) direction, 0.05～0.5m place, fluorescent tube submergence underwater.
System shown in Figure 3 and Fig. 2 are basic identical, and difference is that UV-lamp is vertically installed on the water (flow) direction.System comprises many group UV-lamp A and control device B, each is organized UV-lamp intervals all in UV-lamp, is set in parallel on the lamp bracket, and through WATER REPELLENT, the axis of all UV-lamp is vertical with water (flow) direction, 0.05～0.5m place, fluorescent tube submergence underwater.
When to flowing water irradiation, many groups UV-lamp of ultraviolet light irradiation device is installed on 0.05～0.5m place, underwater at interval, each is organized UV-lamp intervals all in UV-lamp, be arranged in parallel, make the axis of all UV-lamp parallel with water (flow) direction or vertical, control device for opening produces UV-light by described many group UV-lamp the blue-green algae in the water body is carried out ultraviolet light irradiation, wherein ultraviolet wavelength is positioned at the ultraviolet C wave band, and based on the ultraviolet ray of 254nm wavelength, intensity is 3.0～10W/m
2, irradiation time can be controlled by the interval of regulating flow velocity and many group UV-lamp.
Claims (5)
1, a kind of method of utilizing ultraviolet light irradiation to suppress blue algae growth in the water, it is characterized in that comprising: with the blue-green algae 1～5min in the ultraviolet light irradiation water body of ultraviolet light irradiation device generation, wherein ultraviolet wavelength is positioned at the ultraviolet C wave band, and based on the ultraviolet ray of 254nm wavelength, intensity is 3.0～10W/m
2
2, the ultraviolet light irradiation that utilizes according to claim 1 suppresses the method for blue algae growth in the water, it is characterized in that: described ultraviolet light irradiation device is installed on the pleasure-boat that floats on the water surface, make 5～50 UV-lamp of ultraviolet light irradiation device pass 0.05～0.5m place, submergence underwater, pleasure-boat bottom surface, pleasure-boat back and forth moves about, and described 5～50 UV-lamp produce UV-light the blue-green algae in the water body is carried out ultraviolet light irradiation.
3, the ultraviolet light irradiation that utilizes according to claim 2 suppresses the method for blue algae growth in the water, and it is characterized in that: in the ultraviolet light irradiation process, the ultrasonic equipment by described pleasure-boat bottom surface carries out ultrasonication to the blue-green algae in the water body simultaneously.
4, the ultraviolet light irradiation that utilizes according to claim 2 suppresses the method for blue algae growth in the water, and it is characterized in that: the axis of all UV-lamp of described ultraviolet light irradiation device is parallel with water (flow) direction.
5, the ultraviolet light irradiation that utilizes according to claim 2 suppresses the method for blue algae growth in the water, and it is characterized in that: the axis of all UV-lamp of described ultraviolet light irradiation device is vertical with water (flow) direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100515593A CN1297493C (en) | 2004-09-18 | 2004-09-18 | Method and system for inhibiting blue-green algae gowth in water using ultraviolet radiation |
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| CNB2004100515593A CN1297493C (en) | 2004-09-18 | 2004-09-18 | Method and system for inhibiting blue-green algae gowth in water using ultraviolet radiation |
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| CN1587084A CN1587084A (en) | 2005-03-02 |
| CN1297493C true CN1297493C (en) | 2007-01-31 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851015B (en) * | 2009-04-02 | 2012-11-14 | 福建新大陆环保科技有限公司 | Ultraviolet ray sterilization system for controlling biological pollution of water body |
| CN102730792A (en) * | 2011-04-12 | 2012-10-17 | 上海广茂达光艺科技股份有限公司 | Ultraviolet device for algae prevention and removal in water bodies |
| CN103482721A (en) * | 2013-10-16 | 2014-01-01 | 无锡艾科瑞思产品设计与研究有限公司 | Algal bloom control instrument |
| CN105366760A (en) * | 2015-04-14 | 2016-03-02 | 上海大学 | Method for treating algae-containing polluted water in immersive ultraviolet light contact mode |
| CN108358273A (en) * | 2017-12-27 | 2018-08-03 | 上海汀滢环保科技有限公司 | A kind of processing unit and its processing method of cyanobacterial bloom |
| CN108675390A (en) * | 2018-07-27 | 2018-10-19 | 清华大学 | Prevention and control algae and water device |
| CN108675391A (en) * | 2018-07-27 | 2018-10-19 | 清华大学 | Prevention and control algae and water device |
| CN110699415A (en) * | 2019-10-22 | 2020-01-17 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Ultraviolet treatment test method and device for algae on surface of silicone rubber |
| KR20220030342A (en) * | 2020-08-27 | 2022-03-11 | 주식회사 미로 | Floating and ultrasonic type of humidifier capable of generating ultraviolet |
| CN112374570B (en) * | 2020-11-04 | 2022-04-19 | 军事科学院军事医学研究院环境医学与作业医学研究所 | Automatic disinfection device for drinking water |
| CN112624254A (en) * | 2020-11-28 | 2021-04-09 | 江苏中鹏环保集团有限公司 | Method for inhibiting growth of harmful blue-green algae by utilizing chromatic light |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993021115A1 (en) * | 1992-04-10 | 1993-10-28 | Apem Limited | Water treatment |
| JPH0775788A (en) * | 1993-07-15 | 1995-03-20 | Senju Pharmaceut Co Ltd | Method for preventing generation of algae and antialgal composition |
| CN1384064A (en) * | 2001-04-29 | 2002-12-11 | 杜列勋 | Method for treating algaes in water |
| CN1498856A (en) * | 2002-11-11 | 2004-05-26 | 包德修 | Method for treating blue algae in pulse electric field |
-
2004
- 2004-09-18 CN CNB2004100515593A patent/CN1297493C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993021115A1 (en) * | 1992-04-10 | 1993-10-28 | Apem Limited | Water treatment |
| JPH0775788A (en) * | 1993-07-15 | 1995-03-20 | Senju Pharmaceut Co Ltd | Method for preventing generation of algae and antialgal composition |
| CN1384064A (en) * | 2001-04-29 | 2002-12-11 | 杜列勋 | Method for treating algaes in water |
| CN1498856A (en) * | 2002-11-11 | 2004-05-26 | 包德修 | Method for treating blue algae in pulse electric field |
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