TITLE:
Isolation of a Microorganic Strain for the High Volume Degradation of Aniline Blue and Its Application in Natural Sewage Treatment
AUTHORS:
Wenhao Li, Cheng Li, Yuxiang Xu, Qin Wang, Xin Ma, Shouwen Chen, Jun Yu, Yong Yang
KEYWORDS:
Aniline Blue, Dye Degradation, Lysinibacillus fusiformis N019a, Natural Sewage Treatment
JOURNAL NAME:
Computational Molecular Bioscience,
Vol.8 No.4,
December
17,
2018
ABSTRACT: Aniline blue, one of the triphenylmethane
dyes, is the most commonly produced and used of these dyes yet it is also the
most dangerous and the most serious cause of pollution amongst them. An
exploration of aniline blue degradation is likely to facilitate an understanding
of the degradation mechanism for a range of related dyes. In this study, we
managed to isolate a particular strain of microorganism, identified to be Lysinibacillus
fusiformis N019a, which showed a significant capacity for aniline
blue degradation in both laboratory tests and natural sewage treatment. In analysis aided by
a UV-Visible spectrophotometer, we found that 96.7% of
aniline blue had degraded within 24 hours under laboratory conditions. When
treating natural sewage, 80.1% of the aniline blue was removed after just 16 hours. Further analysis has
shown that Lysinibacillus fusiformis N019a has a strong resistance to Cu2+,
Mn2+, Zn2+, and Pb2+. We also found that the
degradation product of aniline blue by Lysinibacillus fusiformis N019a
was of reduced toxicity to plants and microbes.