标題：Simultaneous removal and degradation characteristics of sulfonamide, tetracycline, and quinolone antibiotics by laccase-mediated oxidation coupled with soil adsorption作者：Huijun Ding, Yixiao Wu, Binchun Zou, Qian Lou, Jiayou Zhong , Weihao Zhang, Lei Lu, Guofei Dai

來源出版物：Journal of Hazardous Materials DOI：10.1016/j.jhazmat.2015.12.062 出版時間：4 January 2016

摘要：The uses of laccase in the degradation and removal of antibiotics have recently been reported because of the high efficiency and environmental friendliness of laccase. However, these removal studies mostly refer to a limited number of antibiotics. In this study, soil adsorption was introduced into the laccase-oxidation system to assist the simultaneous removal of 14 kinds of sulfonamide, tetracycline, and quinolone antibiotics, which differed in structures and chemical properties. The complementary effects of laccase-mediated oxidation and soil adsorption enabled the simultaneous removal. Removal characteristics were determined by a comprehensive consideration of the separate optimum conditions for laccase oxidation and soil adsorption removal experiments. With concentrations of laccase, syringaldehyde (SA), and soil of 0.5 mg/mL, 0.5 mmol/L, and 50 g/L, respectively, and at pH 6 and 25 °C, the removal rates of each antibiotic exceeded 70% in 15 min and were close to 100% in 180 min. Sulfonamide antibiotics (SAs) were removed mainly by laccase oxidation and quinolone antibiotics (QUs) mainly by soil adsorption. Tetracycline antibiotics (TCs) were removed by both treatments in the coupled system, but laccase oxidation dominated. Electrostatic adsorption was speculated to be one of the adsorption mechanisms in soil adsorption with QUs and TCs.

文獻類型：Article

語種：English

作者關鍵詞：Antibiotics; Laccase; Soil; Mediator; Simultaneous removal

通訊作者地址：Weihao Zhang, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, People’sRepublic of China

電子郵件地址：

地址：

[Huijun Ding,Yixiao Wu,Weihao Zhang,Lei Lu]School of Resource and Environmental Science, Wuhan University, Wuhan 430079, People’sRepublic of China

[Binchun Zou,Qian Lou, Jiayou Zhong ,Guofei Dai]Jiangxi Provincial Key Laboratory of Water Resources and Environment of Poyang Lake, Jiangxi Institute of Water Sciences, Nanchang 330029, People’s Republic of China

ISSN：0304-3894

影響因子（2014）：4.529

全文鍊接：http://www.sciencedirect.com/science/article/pii/S0304389415303228