Adsorptive Removal of Fluoroquinolone Antibiotics Using Bamboo Biochar

Sustainability

Yanbin Wang²  Jian Lu³  Jun Wu⁴  Qing Liu³  Hua Zhang³  Song Jin¹ 

[1] Department of Civil and Architectural Engineering, University of Wyoming, Laramie, WY 82071, USA; E-Mail:;Zhejiang Forestry Academy, Hangzhou 310023, China; E-Mail:;Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; E-Mails:;Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China

关键词: fluoroquinolone;    antibiotics;    wastewater;    bamboo biochar;    adsorption;   

DOI  :  10.3390/su70912947

来源: mdpi

【 摘 要 】

The occurrence of fluoroquinolone antibiotics in wastewater has drawn great attention. Adsorption of widely used fluoroquinolone antibiotics (enrofloxacin and ofloxacin) in wastewater using bamboo biochar was investigated. More than 99% of fluoroquinolone antibiotics were removed from the synthetic wastewater through adsorption. Adsorption capacities of bamboo biochar slightly changed when pH increased from 3.0 to 10.0. The adsorption capacity of bamboo biochar increased sharply when the initial concentration of enrofloxacin or ofloxacin increased from 1 to 200 mg L⁻¹ and then began to plateau with further increases in initial concentration. The maximum adsorption capacity (45.88 ± 0.90 mg·g⁻¹) was observed when the ratio of bamboo biochar to fluoroquinolone antibiotics was 10. The enrofloxacin adsorption capacity of bamboo biochar decreased from 19.91 ± 0.21 mg·g⁻¹ to 14.30 ± 0.51 mg·g⁻¹ while that of ofloxacin decreased from 19.82 ± 0.22 mg·g⁻¹ to 13.31 ± 0.56 mg·g⁻¹ when the NaCl concentrations increased from 0 to 30 g·L⁻¹. The adsorptions of fluoroquinolone on bamboo biochar have isotherms that obeyed the Freundlich model (r² values were in the range of 0.990–0.991).

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.