Rhizobium and application thereof in degrading nonyl phenol in water environment

A technology of rhizobia and nonylphenol, which is applied to the application field of the above-mentioned rhizobia in degrading nonylphenol in water, which can solve the problems of slow degradation rate, low nonylphenol treatment concentration, and low removal rate, and reduce the concentration of COD , the effect of shortening the biodegradation time

Active Publication Date: 2021-03-19
NANJING JIANGDAO INST OF ENVIRONMENT RES CO LTD
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Problems solved by technology

[0005] Purpose of the invention: The present invention aims at the problems of low treatment concentration, low removal rate and slow degradation rate of nonylphenol in the microbial treatment of water in the prior art, and provides a kind of rhizobia, which can quickly and efficiently degrade the high concentration of nonylphenol in sewage. Nonylphenol

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  • Rhizobium and application thereof in degrading nonyl phenol in water environment
  • Rhizobium and application thereof in degrading nonyl phenol in water environment
  • Rhizobium and application thereof in degrading nonyl phenol in water environment

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Embodiment Construction

[0015] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] In the present invention, the rhizobium (Rhizobium sp.) NPLJ-2 is screened from the activated sludge in the aerobic section of a landfill leachate biological treatment in Nanjing.

[0017] The specific process is as follows:

[0018] (1) Collect aerobic activated sludge from the leachate biological treatment section of a waste incineration plant in Nanjing;

[0019] (2) Get 250mL of the obtained mud-water mixture and put it in an Erlenmeyer flask, stir it at room temperature on a magnetic stirrer, add 100mg of nonylphenol to it every day; Whether the solution contains the target pollutant-nonylphenol), and then make up with tap water, so that the domestication is completed until the target pollutant is not detected in the solution;

[0020] (3) Take out the sludge obtained in step (2), and after the sludge is...

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Abstract

The invention discloses rhizobium named as Rhizobium sp. NPLJ-2. The Rhizobium sp. NPLJ-2 is preserved in China Center for Type Culture Collection on October 19th, 2020 with the preservation number ofCCTCC M 2020603. The invention also discloses application of the rhizobium in degrading nonyl phenol in a water environment. The rhizobium disclosed by the invention has the advantages that the biodegradation rate of the nonyl phenol with the initial concentration of 100 mg/L in a water body under an aerobic condition can reach 80% or above, the biodegradation time is effectively shortened, and meanwhile, COD contributed by the nonyl phenol in sewage is also effectively reduced; and the nonyl phenol in the sewage is quickly and efficiently degraded by utilizing a biological method, and the rhizobium has important significance for treatment of high-concentration environmental hormone-nonyl phenol in the sewage.

Description

technical field [0001] The present invention relates to a rhizobia, and also relates to the application of the rhizobia in degrading nonylphenol in water. Background technique [0002] The printing and dyeing industry is a major player in industrial water consumption and wastewater discharge in my country. According to incomplete statistics, the discharge of printing and dyeing wastewater in my country is about 3 to 4 million m 3 / d, accounting for about 35% of the entire industrial wastewater discharge. For a long time, printing and dyeing wastewater has become a difficult point in the field of industrial wastewater treatment due to its high concentration of organic matter, high salt content, and the difficulty of biochemical degradation of organic matter. [0003] Nonylphenol ethoxylates (NPEOs) are widely used in textile treatment aids and are important industrial nonionic surfactants. The concentration range of NPEO in textile wastewater is as high as 450-5680 μg / L. N...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C02F3/34C12R1/41C02F101/34
CPCC02F3/34C02F2101/345
Inventor 黄开龙张徐祥杨庆任洪强叶林阮在高
Owner NANJING JIANGDAO INST OF ENVIRONMENT RES CO LTD
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