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Method capable of utilizing lake cyanobacterial blooms to culture planktonic algae

A technology for cyanobacterial blooms and lakes, applied in bacteria and other directions, can solve the problems of using technology without corresponding reports, and achieve the effects of saving time and labor costs, easy access, and low cost of raw materials

Active Publication Date: 2015-12-02
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no corresponding report on the specific utilization technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In the hot July, the cyanobacteria blooms were obtained from Meiliang Bay, Taihu Lake, and part of the water in the cyanobacteria blooms was filtered out with a 200-mesh filter to make the cyanobacteria blooms into a slurry, and then the cyanobacteria slurry was transferred to an outdoor 100L white plastic bucket , the volume of cyanobacterial pulp reached about 70L. At this time, the total nitrogen concentration of the blue-green algae slurry in the barrel was 320 mg / L, and the total phosphorus concentration was 40 mg / L. The cyanobacteria slurry in the barrel is aerated by connecting air stones to the air pump. A total of 2 air stones are placed in the barrel for continuous aeration 24 hours a day.

[0026] After 3 days of aeration, a large amount of foams appeared in the visible barrel, and the blue algal pulp turned yellow and brown, and some odors occurred. After aeration for about 10 days, the rot of the cyanobacteria pulp became more obvious, and the cyanobacteri...

Embodiment 2

[0028] In the hot July, the cyanobacteria bloom was obtained from Chaohu Lake, and part of the water in the cyanobacteria bloom was filtered out with a 200-mesh filter, so that the cyanobacteria bloom was in the form of a slurry, and then the cyanobacteria slurry was transferred to an outdoor 100L white plastic bucket, and the cyanobacteria The volume of the slurry reached about 70 L. At this time, the total nitrogen concentration of the blue-green algae slurry in the barrel was 500 mg / L, and the total phosphorus concentration was 60 mg / L. The cyanobacteria slurry in the barrel is aerated by connecting air stones to the air pump. A total of 2 air stones are placed in the barrel for continuous aeration 24 hours a day.

[0029] After 3 days of aeration, a large amount of foams appeared in the visible barrel, and the blue algal pulp turned yellow and brown, and some odors occurred. After 10 days of aeration, the rot of the cyanobacteria pulp was more obvious, and almost all the ...

Embodiment 3

[0031] In the high-temperature August, the cyanobacteria blooms were obtained from Taihu Lake, and part of the water in the cyanobacteria blooms was filtered out with a 200-mesh filter to make the cyanobacteria blooms into a slurry, and then the cyanobacteria slurry was transferred to an outdoor 100L white plastic bucket, and the cyanobacteria The volume of the slurry reached about 70 L. At this time, the total nitrogen concentration of the blue-green algae slurry in the barrel was 200 mg / L, and the total phosphorus concentration was 20 mg / L. The cyanobacteria slurry in the barrel is aerated by connecting air stones to the air pump. A total of 2 air stones are placed in the barrel for continuous aeration 24 hours a day.

[0032] After 3 days of aeration, a large amount of foams appeared in the visible barrel, and the blue algal pulp turned yellow and brown, and some odors occurred. After 10 days of aeration, the rot of the cyanobacteria pulp was more obvious, and almost all t...

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Abstract

The invention relates to a method capable of utilizing lake cyanobacterial blooms to culture planktonic algae, firstly cyanobacterial bloom pulp is obtained from a lake in a season that the cyanobacterial blooms happen in the lake, then cyanobacteria pulp is aerated or stirred to guarantee a local aerobic zone to form in the cyanobacteria pulp, rotten cyanobacteria pulp is transferred into a container with tap water to dilute after the cyanobacteria pulp is treated about 10 days by being ventilated in normal temperature, and the container which is used to store mixed liquor of the tap water and the rotten cyanobacteria pulp is placed in an outdoor opening environment, and is aerated or stirred to keep dissolved oxygen in the mixed liquor above 3mg / L. The container which stores the mixed liquor of the tap water and the rotten cyanobacteria pulp can have the advantage of planktonic algae after the container is aerated or stirred about 10 days. The method capable of utilizing lake cyanobacterial blooms to culture the planktonic algae is simple in culture method, easy to obtain raw materials, convenient to carry out, low in culture cost and wide in appliance range.

Description

technical field [0001] The invention relates to a method for cultivating phytoplankton, in particular to a method for cultivating phytoplankton green algae by using lake cyanobacteria blooms. Background technique [0002] Due to the rapid development of industry and agriculture, a large number of phytoplankton, especially cyanophyte phytoplankton, have grown while the concentration of nitrogen and phosphorus in many lakes in my country has increased, and serious cyanobacteria blooms have formed, resulting in many lakes. The performance of this function is adversely affected. [0003] Until now, cyanobacterial blooms have generally been regarded as harmful substances that need to be removed, and cyanobacterial blooms have generally been removed from lakes by mechanical salvage. After the cyanobacteria bloom is salvaged, it undergoes a certain dewatering treatment, and then accumulates without further utilization. Although my country obtained lake cyanobacteria blooms as natu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20
Inventor 秦伯强高光张运林吴挺峰邓建明董百丽许海吴攀莫晓倩
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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