[Screening of epoxy-degrading halophiles and their application in high-salt wastewater treatment]
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Updated: May 10, 2026

Bioprospecting of Extremophilic Microorganisms to Address Environmental Pollution
Published on: December 30, 2021
Jin Wang1, Zhen Xu, Shu-Chuan Peng
1School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China. wjwang0000@gmail.com
Abstract:
In this study, two halophilic bacteria were isolated from activated sludge in the epoxy wastewater treatment system. The strains were identified, and the growth and degradation characteristics were investigated. Strain J1 and J2 was identified respectively by morphological observation and 16S rDNA sequence alignment analysis. It was found that both strains belong to the Bacillus genus (Bacillus sp.) and branch Bacillus (Virgibacillus sp.). The optimized growth condition of strain J1 and J2 in the high salt CM culture medium was as follows: solution temperature 30 degrees C, pH 7.0 and 5-50 g x L(-1) of NaCl. Furthermore, the best degradation condition of the organic epoxy wastewater was: temperature 30 degrees C, pH 7.0 and NaCl concentration 30 g x L(-1). When the volume ratio of bacterial suspension mixture of J1 and J2 was 2:1 and the inoculum size of the composite strains was 10%, the highest COD removal efficiency was achieved in the epoxy wastewater treatment.
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