| Bacillus sp. LY, with heterotrophic nitrogen removal ability, can biodegrade many kinds of toxic organic pollutants. The study illuminates that Bacillus sp. LY has potential advantages on the biodegradation of toxic organic pollutants combined with heterotrophic nitrogen removal. When using typical toxic organic pollutants, such as phenol, catechol, environment estrogen NP and its precursor NPEOs, as the sole carbon source respectively, removal efficiencies of the four pollutants were 87%，77%，96%，80%, and first-order biodegradation rate constants were 0.191， 0.112， 0.435， 0.147 d-1 respectively. When using NP and NPEOs as the sole carbon source respectively, Bacillus sp. LY could remove total nitrogen to some extent, manifesting the strain's capacity of heterotrophic nitrogen removal. All these results may make contribution to the establishment of new technique of biodenitrification efficiently and removal of toxic organic pollutants simultaneously. |
