AOX contamination status and genotoxicity of AOX-bearing pharmaceutical wastewater
  • 【摘要】

    Adsorbable organic halogens (AOX) are a general indicator for the total amount of compounds containing organically bonded halogens.AOX concentrations and components were investigated along the wastewa... 展开>>Adsorbable organic halogens (AOX) are a general indicator for the total amount of compounds containing organically bonded halogens.AOX concentrations and components were investigated along the wastewater treatment process in four large-scale pharmaceutical factories of China,and genotoxicity based on the SOS/umu test was also evaluated.The results showed that AOX concentrations in wastewater of four factories ranged from 4.6 to 619.4 mg/L,which were high but greatly different owing to differences in the raw materials and products.The wastewater treatment process removed 50.0%-89.9% of AOX,leaving 1.3-302.5 mg/L AOX in the effluents.Genotoxicity levels ranged between 2.1 and 68.0 μg 4-NQO/L in the raw wastewater and decreased to 1.2-41.2 μg 4-NQO/L in the effluents of the wastewater treatment plants (WWTPs).One of the main products of factory Ⅰ,ciprofloxacin,was identified as the predominant contributor to its genotoxicity.However,for the other three factories,no significant relationship was observed between genotoxicity and detected AOX compounds. 收起<<

  • 【作者】

  • 【作者单位】

    School of Environment/School of Environment/Zhejiang Provincial Key Laboratory of Water Science and Technology

  • 【刊期】

    环境科学学报(英文版) ISTIC EI SCI 2017年2期

  • 【关键词】

    Pharmaceutical wastewater  AOX  Genotoxicity  Biological treatment 

  • 【基金项目】

    This work was funded by National High-Tech Research and Development Program (863) of China