Open AccessBiodegradation of nonylphenol ethoxylates by Bacillus sp. LY capable of heterotrophic nitrification
Author(s) -
Lu Jian,
Jin Qiang,
He Yiliang,
Wu Jun,
Zhao Juan
Publication year - 2008
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.2007.01039.x
Subject(s) - nonylphenol , biodegradation , nitrification , heterotroph , environmental chemistry , chemistry , ecotoxicology , nitrogen , bacteria , biology , organic chemistry , genetics
Biodegradation of nonylphenol ethoxylates (NPEOs) by Bacillus sp. LY, with heterotrophic nitrification ability was investigated. The results showed that NPEOs were readily degraded by Bacillus sp. LY with more than 80% of the total NPEOs being removed within 7 days. Heterotrophic nitrogen removal occurred simultaneously during the biodegradation period of NPEOs. NPEOs were biodegraded through a nonoxidative pathway, through which NPEOs were degraded via sequential removal of ethoxyl units to the nonylphenol. To the authors' knowledge, it is the first report on the biodegradation of NPEO contaminants by a microorganism capable of heterotrophic nitrogen removal.