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使用松树皮,树灰和贝外去除阿齐思罗米辛.

Raquel Cela-Dablanca1, Ana Barreiro1, Lucía Rodríguez-López2

  • 1Dept. Soil Science and Agricultural Chemistry, Engineering Polytechnic School, Univ. Santiago de Compostela, 27002, Lugo, Spain.

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树灰,松树皮和贝有效地从土壤中去除抗生素阿齐思罗米 (AZM). 这些低成本的生物吸收剂增强了AZM的去除,为环境污染控制提供了一个有希望的解决方案.

关键词:
吸附方式 吸附方式 吸附方式抗生素 抗生素是一种抗生素.副产品 副产品 副产品脱吸方式 脱吸方式新兴污染物 新兴污染物土壤 土壤土壤.

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科学领域:

  • 环境科学 环境科学
  • 环境化学环境化学
  • 吸附科学 吸附科学

背景情况:

  • 抗生素污染对环境构成重大风险.
  • 吸附是一种成本效益高的去除污染物的方法.
  • 阿齐思罗米 (AZM) 是一种广泛使用的抗生素,具有环境持久性.

研究的目的:

  • 评估松树皮,树灰和贝作为阿齐思罗米 (AZM) 的生物吸收剂.
  • 评估这些生物吸附剂在从不同类型的土壤中去除AZM的效率.
  • 在有或没有生物吸附剂的土壤上研究AZM的吸附和脱附特性.

主要方法:

  • 批量吸附实验使用不同的AZM度 (2.5600μmol L-1) 进行.
  • 三种副产品 (松树皮,树灰,贝) 被测试为吸附剂.
  • 吸附数据与线性,弗洛伊德利希和朗穆尔模型相匹配.

主要成果:

  • 树灰显示了最高的吸附能力 (>80%的保留),其次是松树皮 (69%) 和贝 (25-50%).
  • 在AZM对生物吸附剂的吸附在很大程度上是不可逆转的,吸附率微不足道.
  • 生物吸附剂的应用确保了在所有测试的土壤度中100%的AZM吸附.

结论:

  • 松树皮,树灰和贝是有效的,低成本的生物吸收剂,可以从环境中去除亚齐胺.
  • 这些材料显著提高了污染土壤中AZM清除效率.
  • 这些发现提供了一种可持续的方法来缓解抗生素造成的新出现的污染物污染.