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Floating algae air curtain blocking technique

A technology and algae technology, applied in the field of floating algae air curtain, can solve the problems of poor reliability, easy to be damaged by wind and waves, high construction and maintenance costs, and achieve the effect of high guarantee rate and good drainage performance.

Inactive Publication Date: 2008-08-20
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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AI Technical Summary

Problems solved by technology

In lakes with serious eutrophication problems such as Taihu Lake, Chaohu Lake, and Dianchi Lake, various fence (fenced) technologies are used to block blue-green algae. Their effectiveness is certain, but they hinder traffic, affect landscape, block water flow, and affect ecology. The negative effects strictly limit its applicability, and the fence (enclosed) on the large lake is easily damaged by wind and waves, the construction and maintenance costs are high, and the reliability is relatively poor

Method used

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  • Floating algae air curtain blocking technique
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Embodiment Construction

[0027] The present invention carries out engineering application according to the following steps:

[0028] (1) Build fan room (5) and install fan (6).

[0029] (2) Lay out the line on the bottom of the lake and set up the pipe support (2).

[0030] (3) Assemble the air supply main pipe (3) and the end "∪" shaped pipe (7) on the water surface, install the branch pipe interface (8) and close the regulating valve.

[0031] (4) Install the air supply main pipe (3) on the underwater support (7) as a whole.

[0032] (5) Microporous aeration branch pipe (9) is installed.

[0033] (6) Start the fan (6), open all the regulating valves of the branch pipe interface (8) under pressure, and adjust the air flow to make the whole system evenly aerated.

[0034] (7) Close the blower fan (6), and can start operation again at any time.

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Abstract

A technology of blocking the floating alga and similar floating contaminations in a water body by a gas curtain consists of a low pressure gas supply pipeline system, a pipe branch interface and a millipore aeration pipe branch and is arranged about 2m under the water to form a 'curtain' shaped gas-water flow in the water body by zonal aeration to cut off the wind-generated laminar flow of lake water so as to block the floating alga and the similar floating contaminations. The technology can build an invisible (obstacle-free) water body floating contamination blocking protection line used for the blocking, the stream guidance and the enrichment of the contaminations such as floating alga, etc. in an inland low flow speed water body and the construction scale of the technology can reach 10km; wherein, the running energy consumption is less than 20kw. The technology is not affected by wind, wave and ships with a service life of over 10 years.

Description

Technical field: [0001] Water environment engineering technology. The invention relates to a floating algae air curtain blocking technology, which is suitable for blocking and enriching floating cyanobacteria and similar floating objects in inland low-velocity water bodies (lakes and reservoirs), and has the function of protecting target waters and preventing cyanobacteria disasters. Background technique: [0002] The cyanobacteria disaster caused by water eutrophication seriously endangers many lakes and reservoirs. The disaster is characterized by "edge effect". Blocking and removing cyanobacteria on the cyanobacteria drift path can effectively prevent the occurrence of cyanobacteria disasters in local waters. In lakes with serious eutrophication problems such as Taihu Lake, Chaohu Lake, and Dianchi Lake, various fence (fenced) technologies are used to block blue-green algae. Their effectiveness is certain, but they hinder traffic, affect landscape, block water flow, and ...

Claims

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Application Information

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IPC IPC(8): E02B15/08
Inventor 李文朝潘继征冯慕华李玲
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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