欢迎访问《中国农学通报》,

中国农学通报 ›› 2023, Vol. 39 ›› Issue (9): 63-70.doi: 10.11924/j.issn.1000-6850.casb2022-0283

• 资源·环境·生态·土壤 • 上一篇    下一篇

抗生素在人工湿地中的去除机制综述

陈高霖1(), 麦咏芯1, 张冬青1, 吕梦雨2, 李霞1()   

  1. 1 广东石油化工学院,广东茂名 525000
    2 华南理工大学,广州 510000
  • 收稿日期:2022-04-13 修回日期:2022-08-15 出版日期:2023-03-25 发布日期:2023-03-23
  • 通讯作者: 李霞,女,1973年出生,广东茂名人,副教授,硕士,研究方向:人工湿地和污染土壤修复。通信地址:525000 广东省茂名市官渡二路139号 广东石油化工学院,Tel:13553698691,E-mail:mmlixia2006@163.com
  • 作者简介:

    陈高霖,男,2000年出生,广东云浮人,本科,学士,研究方向:人工湿地和污染土壤修复。通信地址:525000 广东省茂名市官渡二路139号 广东石油化工学院,Tel:13318912238,E-mail:

  • 基金资助:
    大学生创新创业训练计划“药物化合物在人工湿地中去除的分子机制研究”(73321108)

Antibiotic Removal Mechanism in Constructed Wetland: A Review

CHEN Gaolin1(), MAI Yongxin1, ZHANG Dongqing1, LV Mengyu2, LI Xia1()   

  1. 1 Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000
    2 South China University of Technology, Guangzhou 510000
  • Received:2022-04-13 Revised:2022-08-15 Online:2023-03-25 Published:2023-03-23

摘要:

随着医疗废水和生活污水的排放,抗生素进入水体环境,通过食物链的传递富集累积到人体中,影响人类健康。人工湿地(CWs)是可替代传统污水处理技术的绿色生态系统,然而迄今为止,应用CWs去除抗生素的机制尚未清楚。为了进一步研究抗生素在不同类型CWs中的去除行为,分析了CWs中的基质、微生物和大型植物等关键组成成分,在去除不同抗生素所起到的作用;归纳了去除抗生素的内在关键机制包括土壤基质吸附、植物根系吸收和茎部转移和植物根系微生物降解;总结了影响CWs去除抗生素的因素,包括抗生素的物理化学特性、土壤基质类型、土壤生物酶的种类、pH、氧化还原条件、微生物种类与活性等。最后探讨了利用CWs生态系统提高抗生素去除效率的方法,并就未来减轻CWs中抗生素风险的研究前景进行了简要介绍,旨在为进一步开发可行性、创新性和高效性的抗生素去除技术提供相关信息。

关键词: 抗生素, 人工湿地, 土壤基质, 大型植物, 微生物群落, 去除机制, 影响因素

Abstract:

With the discharge of medical wastewater and domestic sewage, antibiotics have been frequently detected in the aquatic environment and accumulated in human body through the transmission and accumulation of food chain, posing severe threat to human health. Constructed wetlands (CWs) have been used as green alternatives to conventional wastewater treatment technologies. However, to date, the mechanism of applying CWs to remove antibiotics has not been comprehensively elucidated. In order to clarify the removal behavior of antibiotics in different types of CWs, this study investigates the role of key components, including wetland substrates, microbial organisms and macrophytes, in antibiotic removal in CWs. The key mechanisms involved in antibiotic removal are summarized, including soil substrate adsorption, plant root system uptake and stem translocation, and microbial biodegradation in root system. This study also assesses the factors affecting antibiotic removal in CWs, such as the physiochemical properties of antibiotics, the types of soil substrates, enzyme type, pH, redox conditions, microbial species and activities. In addition, an in-depth discussion about the strategies for enhancing antibiotic removal in CWs ecosystem is carried out, in order to shed a light into further exploration of feasible, innovative, and efficient solutions for antibiotic removal in CWs.

Key words: antibiotic, constructed wetland, soil substrate, macrophytes, microbial community, removal mechanism, influencing factors