CN201495535U - Algae trapping and purifying device at water intake of eutrophic lake reservoir - Google Patents
Algae trapping and purifying device at water intake of eutrophic lake reservoir Download PDFInfo
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- CN201495535U CN201495535U CN2009201876525U CN200920187652U CN201495535U CN 201495535 U CN201495535 U CN 201495535U CN 2009201876525 U CN2009201876525 U CN 2009201876525U CN 200920187652 U CN200920187652 U CN 200920187652U CN 201495535 U CN201495535 U CN 201495535U
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Abstract
The utility model discloses an algae trapping and purifying device at water intakes of eutrophic lake reservoirs, which comprises two or more fences centering on a water intake of a eutrophic lake reservoir. Fence meshes are fixed on the fences, the fence mesh with the weights connected to the bottom sinks onto a lakebed, a water intake area is formed by circling the innermost fence, a water source area formed by the water intake area is used for breeding filter-feeding fish or benthonic animals, and water surface between two fences is used for breeding hygrophyte aquatic floating plants. The algae trapping and purifying device applies structural regulation to ecosystem, thereby reducing damage of algae in eutrophic lake reservoirs to drinking water and ensuring safety of water supply.
Description
Technical field
The utility model relates to the purification of water quality field, specifically is intake algae bio interception of storehouse, eutrophication lake and purifier.
Technical background
Big-and-middle-sized water bodys such as the many lakes of China, reservoir have all suffered pollution in various degree at present, phenomenons such as water quality variation and eutrophication occurred, and these contaminated water bodys are mostly also as the tap water water source.Because water quality deterioration, blue-green algae breaks out again and again, and the water treatment expense is constantly increased, and when blue-green algae broke out, disposal cost also will increase to more.Simultaneously, tap water fishy smell is pungent, and masses' suggestion is very big, especially breaks out the phase in a large number blue-green algae, even has to stop to supply water, and has had a strong impact on industrial and agricultural production and people's lives safety.Break out on a large scale in advance and pollute the Wuxi City drinking water source as Taihu Lake blue-green alga bloom in 2007, cause the urban water supply crisis of Wuxi.
Most of water workss are in order to improve this situation, taked the method for migration intake to the upstream or the Hu Ku center in river course, to obtain water quality preferably, but increase along with degree of contamination, the water quality of edema with the heart involved can not meet the demands in upper water and the storehouse, lake, and the method that shifts intake can't resolve this problem.
The breeding of algae not only makes the water quality situation worsen, and brings influence to the ecosystem, and the processing and the safety of drinking water are also brought influence.In the drinking water treatment process, the subject matter that algae and secretory substance thereof produce has: (1) part frustule easily penetrates floccule body, destroys flocculation process, causes water outlet that algae pollutant is arranged; (2) disturb filtration, frustule can be grown in filter bed and be produced obstruction, filters the cycle of operation thereby shorten, and causes the backwash water consumption to increase, and backwash frequency strengthens, the decline of actual used water output; (3) algae easily produces the precursor of haloform in metabolic process, and haloform is the carcinogenicity material that human body is had potential hazard, and the increase of frustule quantity has also increased the use amount of chlorine in the while water; (4) the part algae discharges the algae toxin in metabolic process or dead back, and organism is caused toxicity and harm, and the common and bigger hepatotoxin of harm is difficult to remove in the conventional water treatment technology contratoxin; (5) material of distinguishing the flavor of of smelling that algae is secreted causes drinking water peculiar smell to occur, when oxidant use amount in the water treatment is low, not only can't eliminate the influence of smelling flavor, also can smell new the causing of flavor organic matter reaction generation with some sometimes and smell material; (6) organic substance that algae produced easily causes microorganism to regrow in water supply system, forms biomembrane and results in blockage.Owing to have these problems, can not ignore the influence of algae in the drinking water treatment.
These characteristics of algae-containing water adopt conventional treatment, remove algae, organic matter, smell flavor etc. and produce big difficulty, the corresponding raising of processing cost.On original technology, add pretreating process, need increase infrastructure and original technology are adjusted accordingly, and the present most of water factories of China floor space is limited, and the adjustment of original technology is acquired a certain degree of difficulty, and is difficult to fundamentally solve the intake quality problem.
Connective and open in view of storehouse, lake water body, fundamentally guarantee the water quality safety of intake depends on the pollution control and the restoration of the ecosystem in whole basin, and even this ongoing effort that needed for tens decades; So several nothings possibilities of local algal control, effective method can only be local interception and purification.The present task of top priority is under the situation that the whole eutrophication in storehouse, lake remains high, and adopts the specific aim measure, develops the key technology of local algae interception and purification, ensures the water quality safety of intake part.
The algae removal technology that adopts both at home and abroad mainly contains following several (seeing the following form) at present:
| Title | Method for example | Cost and energy consumption | The scope of application | Speed and effect | Remarks |
| Physics removes algae | Machinery or artificial salvaging, clay flocculation, shading technology | High | Local, algal tufa accumulation area | Comparatively fast, effect is obvious, do not cause secondary pollution, workload is big, the cycle is longer, as emergency processing | Need to solve the disposal after algae is gathered in the crops in a large number and utilize problem |
| Chemical algae removing | Use chemical agent or biochemicals | Higher | Large and small water body | Hurry up, will cause inevitably environment pollution or destroy the ecological homeostasis, aquatile is produced injury to a certain degree even causes death, and carcinogenesis is arranged.Also can produce some uncertain bad sequelae | |
| Biological except that algae | Remove algae, BIOLOGICAL CONTROL reagent, higher plant restraint algae, fish control algae with algae system algae, microbial flocculant | Less expensive | Large and small water body | Slower, macro-organism control algae can be removed algae and pollutants such as nitrogen, phosphorus. and can also bring bigger economic benefit. thereby be the prefered method of algae removal | The application scale of control algae needs further research to put the ecological aftereffect of control algae fish in a suitable place to breed. |
Algae control technology as bigger eutrophication Hu Ku, it is impracticable utilizing gongwu method and chemical method, environment amenable biological control algae technology receives increasing concern, and the exploitation focus of the control algae technology of storehouse, domestic and international many eutrophication lake wawter bloom turns to biological control algae technology.
The utility model content
The utility model provides intake algae bio interception of storehouse, a kind of eutrophication lake and purifier, implements the ecosystem structure regulation and control, has reduced the harm of storehouse, eutrophication lake algae to drinking water, has guaranteed the safety that supplies water.
The technical solution of the utility model is:
Intake algae bio interception of storehouse, eutrophication lake and purifier, it is characterized in that: being included in storehouse, eutrophication lake intake is two circle or a few fences that the center is provided with, be fixed with purse seine on the described fence, the purse seine bottom is connected with weight and is sunken on the lakebed, the purse seine of described inner ring surrounds the water intaking zone, put filter ichthyophagy class or water body zoobenthos in a suitable place to breed in the watershed that the water intaking zone constitutes, the water surface between the two corral nets is used to culture aquatic floating plant.
Intake algae bio interception of storehouse, described eutrophication lake and purifier, it is characterized in that: described purse seine is higher than the water surface.
Intake algae bio interception of storehouse, described eutrophication lake and purifier is characterized in that the diameter in described water intaking zone is a 800-1200 rice, and the distance between the two corral nets is 30-50m.
The utility model is by making up stereo biological interception and ecology isolation system in source, Hu Ku water conservation district water intake and mixed zone, boundary, contiguous waters; near the endogenous water intake in water source protection lake region, implement the ecosystem structure regulation and control; reduce of the harm of storehouse, eutrophication lake algae, guarantee water supply security the drinking water source.Described aquatic floating plant formation is blocked the algae band, has algae interception function, stops contiguous waters algae to enter the water source protection lake region, thereby water body is to the influence of the former water of drinking water outside the reduction water source protection lake region; The regulation and control of fish structure and zoobenthos are particularly passed through by carrying out the ecosystem structure regulation and control in the watershed, thereby reduce water nutrition salinity, inhibition algae regeneration breeding.
The utility model can reduce the algae that floats into outside the intake control zone, intake control zone water quality significantly improves, and ecosystem structure is optimized.Catharsis by the intake control zone, make the blue-green alga bloom generation frequency in waters, intake control zone significantly reduce, the transparency of water body significantly increases, and intake control zone water quality further improves, thereby reduces the processing cost of drinking water water factory and ensure drinking water safety.The algae that suppresses body eutrophication and reduction drinking water resource there is obvious facilitation; solved the problem that the water intaking source is constantly changed in the water works; and adopt biological, ecological method, meet the protection requirement at water source He other water sources of present China water works.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Intake algae bio interception of storehouse, eutrophication lake and purifier, be included in the two corral hurdles 2 that storehouse, eutrophication lake intake 1 is provided with for the center, the height of fence 2 is higher than the water surface 3, all be fixed with purse seine 5 on every corral hurdle 2, purse seine 5 bottoms are connected with weight and are sunken on the lakebed 4, the purse seine 5 of described inner ring surrounds the water intaking zone, and the watershed that the water intaking zone constitutes is used to put in a suitable place to breed filter ichthyophagy class or water body zoobenthos, and the water surface between the two corral nets 5 is used to culture aquatic floating plant.
Filter ichthyophagy class is selected silver carp and bighead for use, and throwing in part by weight is 1: 1, and throwing in density is every cubic metre of waters about 30-40g filter ichthyophagy class; The water body zoobenthos is selected snail or freshwater mussel for use.
Claims (3)
1. storehouse, eutrophication lake intake algae bio is tackled and purifier, it is characterized in that: being included in storehouse, eutrophication lake intake is two circle or a few fences that the center is provided with, be fixed with purse seine on the described fence, the purse seine bottom is connected with weight and is sunken on the lakebed, the purse seine of described inner ring surrounds the water intaking zone, put filter ichthyophagy class or water body zoobenthos in a suitable place to breed in the watershed that the water intaking zone constitutes, the water surface between the two corral nets is used to culture aquatic floating plant.
2. intake algae bio interception of storehouse, eutrophication according to claim 1 lake and purifier, it is characterized in that: described purse seine is higher than the water surface.
3. intake algae bio interception of storehouse, eutrophication according to claim 1 lake and purifier is characterized in that the diameter in described water intaking zone is a 800-1200 rice, and the distance between the two corral nets is 30-50m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201876525U CN201495535U (en) | 2009-09-18 | 2009-09-18 | Algae trapping and purifying device at water intake of eutrophic lake reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201876525U CN201495535U (en) | 2009-09-18 | 2009-09-18 | Algae trapping and purifying device at water intake of eutrophic lake reservoir |
Publications (1)
| Publication Number | Publication Date |
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| CN201495535U true CN201495535U (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201876525U Expired - Fee Related CN201495535U (en) | 2009-09-18 | 2009-09-18 | Algae trapping and purifying device at water intake of eutrophic lake reservoir |
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| CN (1) | CN201495535U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219308A (en) * | 2011-04-12 | 2011-10-19 | 安徽农业大学 | Method for collecting blue algae and purifying water quality |
| CN102415257A (en) * | 2011-09-19 | 2012-04-18 | 上海水生环境工程有限公司 | Mode for planting submerged plant under guidance of biological base net |
| CN102852124A (en) * | 2012-10-15 | 2013-01-02 | 中国科学院南京地理与湖泊研究所 | Composite alga retaining enclosure for floating plants |
| CN103266644A (en) * | 2013-03-26 | 2013-08-28 | 西安建筑科技大学 | Device combined with main tower of water intake tower of reservoir for avoiding algae |
| CN103993588A (en) * | 2013-02-17 | 2014-08-20 | 上海城投原水有限公司青草沙水库管理分公司 | Water source lake and reservoir algae filtering net |
| CN104230001A (en) * | 2014-09-30 | 2014-12-24 | 浙江海洋学院 | Freshwater lake ecological alga control method |
| CN106120683A (en) * | 2016-06-30 | 2016-11-16 | 大连理工大学 | A kind of sea water is fetched water, and channel is disastrous breaks out marine organisms automatic clearing apparatus |
| CN107585866A (en) * | 2017-05-18 | 2018-01-16 | 中国科学院生态环境研究中心 | A kind of underwater littoral barrier constructed with celluar concrete and interception and the method for controlling algae |
| CN113149126A (en) * | 2021-04-30 | 2021-07-23 | 河海大学 | Comprehensive treatment method for algal blooms in eutrophic water body |
| CN115288094A (en) * | 2022-08-16 | 2022-11-04 | 水利部交通运输部国家能源局南京水利科学研究院 | Facility for preventing blue algae disaster at water intake of eutrophic lake water source |
-
2009
- 2009-09-18 CN CN2009201876525U patent/CN201495535U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219308A (en) * | 2011-04-12 | 2011-10-19 | 安徽农业大学 | Method for collecting blue algae and purifying water quality |
| CN102219308B (en) * | 2011-04-12 | 2013-03-20 | 安徽农业大学 | Method for collecting blue algae and purifying water quality |
| CN102415257A (en) * | 2011-09-19 | 2012-04-18 | 上海水生环境工程有限公司 | Mode for planting submerged plant under guidance of biological base net |
| CN102852124A (en) * | 2012-10-15 | 2013-01-02 | 中国科学院南京地理与湖泊研究所 | Composite alga retaining enclosure for floating plants |
| CN103993588A (en) * | 2013-02-17 | 2014-08-20 | 上海城投原水有限公司青草沙水库管理分公司 | Water source lake and reservoir algae filtering net |
| CN103266644A (en) * | 2013-03-26 | 2013-08-28 | 西安建筑科技大学 | Device combined with main tower of water intake tower of reservoir for avoiding algae |
| CN104230001A (en) * | 2014-09-30 | 2014-12-24 | 浙江海洋学院 | Freshwater lake ecological alga control method |
| CN106120683A (en) * | 2016-06-30 | 2016-11-16 | 大连理工大学 | A kind of sea water is fetched water, and channel is disastrous breaks out marine organisms automatic clearing apparatus |
| CN106120683B (en) * | 2016-06-30 | 2018-07-13 | 大连理工大学 | Channel is disastrous breaks out marine organisms automatic clearing apparatus for a kind of water intaking of seawater |
| CN107585866A (en) * | 2017-05-18 | 2018-01-16 | 中国科学院生态环境研究中心 | A kind of underwater littoral barrier constructed with celluar concrete and interception and the method for controlling algae |
| CN113149126A (en) * | 2021-04-30 | 2021-07-23 | 河海大学 | Comprehensive treatment method for algal blooms in eutrophic water body |
| CN113149126B (en) * | 2021-04-30 | 2022-06-14 | 河海大学 | Comprehensive treatment method for algal blooms in eutrophic water body |
| CN115288094A (en) * | 2022-08-16 | 2022-11-04 | 水利部交通运输部国家能源局南京水利科学研究院 | Facility for preventing blue algae disaster at water intake of eutrophic lake water source |
| CN115288094B (en) * | 2022-08-16 | 2023-06-20 | 水利部交通运输部国家能源局南京水利科学研究院 | Facility for preventing blue algae disasters at water intake of eutrophic lake water source site |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20100918 |