Serratia marcescens and application thereof in degradation of tetrabromobisphenol A

Abstract

The invention discloses serratia marcescens and an application of the serratia marcescens in degradation of tetrabromobisphenol A. The serratia marcescens is separated from a circulating system for treating tetrabromobisphenol A simulated wastewater, a strain of serratia marcescens which has superior degradation capability on tetrabromobisphenol A is separated from an immobilized biological membrane in an operation system, is named as TB-3, is preserved in China Center for Type Culture Collection on April 1, 2022, and has the preservation number of CGMCC NO.3487. The invention also discloses a method for preparing the serratia marcescens. The preservation number of the strain is CCTCC M 2022367. The strain has relatively strong tetrabromobisphenol A degradation capability; tetrabromobisphenol A can be used as a unique carbon source for decomposition and utilization; meanwhile, the strain is high in activity, the culture method is simple, and the strain can be directly used for treating the environment containing tetrabromobisphenol A; good application prospects are realized.

Description

technical field [0001] The invention relates to the field of environmental microbiology research, in particular to a Serratia marcescens strain and the application of degrading tetrabromobisphenol A. Background technique [0002] The hydroxyl and bromine groups in the molecular structure of tetrabromobisphenol A are easy to react with polymer materials, and are often used as reactive flame retardants. They are widely used in printed circuit boards and electronic components, and can be used as additive flame retardants. In textiles, plastics, papermaking, electronic equipment and other fields. The mass production and use of tetrabromobisphenol A makes it partially released into the environment, causing serious pollution to water, air and soil. And because of its bioaccumulation, it often accumulates in humans and animals through respiration, exposure routes, food chains, etc. [0003] The methods to deal with tetrabromobisphenol A pollution mainly include physical, chemical...

AI Technical Summary

Problems solved by technology

The large-scale production and use of tetrabromobisphenol A has caused some of it to be released into the environment, causing serious pollution to water, air and soil.

At present, there are two problems in the treatment of tetrabromobisphenol A by microorganisms that can be used to degrade tetrabromobisphenol A: long treatment time and low concentration of tetrabromobisphenol A degradation

For example: when Pseudomonas W1-2 degrades 10 mg / L tetrabromobisphenol A, the degradation rate is 91.4% after 120 hours, the concentration of degradable tetrabromobisphenol A is low and the degradation time is long

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