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Method for degrading microcystis aeruginosa

A technology of microcystis aeruginosa and degrading bacteria, which is applied in the field of water treatment, can solve the problems of large input amount and low inhibition rate, and achieve the effect of less input amount, improved capacity, and high removal rate

Inactive Publication Date: 2018-11-06
碧沃丰生物科技(广东)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this patent requires the synergistic effect of multiple strains, and the input amount is large, the treatment time needs more than 8 days, and the inhibition rate is only 84.4%.

Method used

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  • Method for degrading microcystis aeruginosa
  • Method for degrading microcystis aeruginosa
  • Method for degrading microcystis aeruginosa

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Effect test

preparation example Construction

[0037] The preparation method of described untreated bacterial liquid comprises:

[0038] (1) Get the Pseudomonas mendoza preserved in the refrigerator, draw a line on the nutrient broth solid medium plate, and culture it at a temperature of 26-33°C for 10-16h until a single colony grows;

[0039] (2) Inoculate a single colony of Pseudomonas mendoza into the nutrient broth liquid medium, and cultivate it for 10-16h to the logarithmic growth phase under the condition that the temperature is 26-33°C and the number of revolutions is 150-250rpm, and then press 0.5-2% of the added amount was transferred to fresh nutrient broth liquid medium, and continued to cultivate to the logarithmic growth phase according to the above conditions to obtain untreated bacterial liquid;

[0040](3) centrifuging the untreated bacterial liquid, collecting the centrifuged bacterial cells, and resuspending them with sterile water to obtain bacterial supersuspensions;

[0041] (4) Collect the supernata...

Embodiment 1

[0075] 1. Preparation of degradation bacteria solution

[0076] Take the Pseudomonas mendoza preserved in the refrigerator at -80°C, streak it on the nutrient broth solid medium plate, and culture it at 30°C for 12 hours until a single colony grows; inoculate Pseudomonas mendoza Bacterial single colonies were transferred to the nutrient broth liquid medium, cultivated at a temperature of 30°C and a rotation speed of 200rpm for 16 hours to the logarithmic growth phase, and then transferred to a fresh nutrient broth liquid medium according to the addition amount of 1%. Cultivate for 12 hours to the logarithmic growth phase at a temperature of 30° C. and a rotation speed of 200 rpm to obtain an untreated bacterial liquid for future use.

[0077] 2. Preparation of culture medium of Microcystis aeruginosa

[0078] Microcystis aeruginosa was inoculated in BG11 medium at a 10% dosage, and cultured for 3 days at a temperature of 30°C and a light intensity of 2000 lux. The chlorophyll...

Embodiment 2

[0083] 1. Preparation of degradation bacteria solution

[0084] Take the Pseudomonas mendoza preserved in the refrigerator at -80°C, streak it on the nutrient broth solid medium plate, and culture it at 30°C for 12 hours until a single colony grows; inoculate Pseudomonas mendoza Bacterial single colonies were transferred to the nutrient broth liquid medium, cultivated at a temperature of 30°C and a rotation speed of 200rpm for 16 hours to the logarithmic growth phase, and then transferred to a fresh nutrient broth liquid medium according to the addition amount of 1%. Cultivate for 12 hours to the logarithmic growth phase at a temperature of 30°C and a rotation speed of 200 rpm to obtain an untreated bacterial liquid for later use;

[0085] Centrifuge the above-mentioned untreated bacterial liquid at a speed of 10,000 rpm and a temperature of 4°C. After collecting the bacterial cells, resuspend them with sterile water to obtain a bacterial supersuspension;

[0086] The above c...

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Abstract

The invention discloses a method for degrading microcystis aeruginosa. The method comprises the steps that a degradation bacterial solution is inoculated into a culture solution of the microcystis aeruginosa according to the additive amount of 0.05-10%, co-culture is conducted under the conditions that the temperature is 20-40 DEG C, the pH is 5-10, and the illumination intensity is 1,600-2,300 lux, wherein the degradation bacterial solution is prepared from pseudomonas mendocina, the pseudomonas mendocina is preserved in Guangdong culture collection center on December 8th, 2017, and the biological preservation number is GDMCC 60297. According to the method, the degradation bacterial solution is adopted for degrading the microcystis aeruginosa, the input amount is little, treatment time isshort, and the removal rate is high.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a method for degrading Microcystis aeruginosa. Background technique [0002] In recent years, with the rapid economic development and the continuous improvement of the quality of life, more and more nutrient-rich and complex production and domestic wastewater has been discharged into rivers and lakes. These waste water containing a large amount of pollutants such as nitrogen and phosphorus cause eutrophication of the discharged water body, which seriously leads to the outbreak of blue-green algae and destroys the ecological environment of the water body, which not only threatens the survival of aquatic organisms, but even threatens the health of human beings. In recent years, the eutrophication of domestic freshwater bodies has become more and more serious. A large number of algae have been found in some large lakes, reservoirs and aquaculture water bodies, and serious cy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
CPCC02F3/34C02F3/348C02F2303/04
Inventor 范德朋夏雨胡亚冬陈倩瑜
Owner 碧沃丰生物科技(广东)股份有限公司