期刊
ECOLOGICAL ENGINEERING
卷 94, 期 -, 页码 337-343出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ecoleng.2016.06.006
关键词
Nitrification; Erythromycin; Inhibition; Adaptation; Macrolide
The influence of erythromycin on ammonia -oxidizing bacteria (AOB) and nitrite -oxidizing bacteria (NOB) was investigated using batch and continuous experiments. During the batch experiments, the impact of erythromycin was strictly dose -dependent for AOB and NOB. The continuous addition of 1 mg/L of erythromycin in the long-term exposure experiment made NOB to be sensitive whereas AOB to be minimally sensitive. After a prolonged exposure to concentration, even up to 50 mg/L both NOB and AOB become insensitive to increases in erythromycin. From the seven dosage levels, between 54.3% and 69.1% of erythromycin was removed by adsorption and the percentage of nitrifiers in the microbial community increased from 39.8% to 55.6%. (C) 2016 Elsevier B.V. All rights reserved.
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