化工进展 ›› 2023, Vol. 42 ›› Issue (1): 469-479.DOI: 10.16085/j.issn.1000-6613.2022-0570

• 资源与环境化工 • 上一篇    下一篇

菌藻共生系统削减抗生素类污染物的去除途径及胁迫响应

应璐瑶(), 王荣昌()   

  1. 同济大学环境科学与工程学院 长江水环境教育部重点实验室,上海 200092
  • 收稿日期:2022-04-06 修回日期:2022-05-27 出版日期:2023-01-25 发布日期:2023-02-20
  • 通讯作者: 王荣昌
  • 作者简介:应璐瑶(1998—),女,硕士研究生,研究方向为菌藻生物膜去除抗生素。E-mail:yingluyao@tongji.edu.cn
  • 基金资助:
    国家自然科学基金(51878466)

Removal pathways of antibiotic pollutants by bacterial-algal consortium and its stress response mechanisms

YING Luyao(), WANG Rongchang()   

  1. Key Laboratory of Yangtze Aquatic Environment, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
  • Received:2022-04-06 Revised:2022-05-27 Online:2023-01-25 Published:2023-02-20
  • Contact: WANG Rongchang

摘要:

菌藻共生系统不仅能够高效去除污水中的氮磷、重金属、抗生素等污染物,而且还能够捕集并固定二氧化碳,因而受到日益广泛的关注。本文介绍了菌藻共生系统对抗生素类污染物的去除途径,包括生物降解、生物吸附、生物累积等,其中生物降解是菌藻共生系统去除抗生素的最主要途径;同时简述了降解抗生素的生物反应器类型,主要可分为悬浮生长系统和固定化生长系统。本文还重点介绍了菌藻共生系统应对抗生素胁迫的短期和长期响应机制,短期响应主要是通过产生活性氧(ROS)并激活SOS响应,长期响应则具体表现在抗生素抗性基因的富集转移和微生物群落的演替进化等方面。本文为菌藻共生系统用于去除废水中抗生素类污染物提供了理论依据和技术参考。

关键词: 菌藻共生系统, 废水处理, 抗生素, 抗性基因, 胁迫响应

Abstract:

Bacterial-algal consortium can not only remove pollutants such as nitrogen, phosphorus, heavy metals and antibiotics from wastewaters efficiently, but also can capture and fix carbon dioxide, which gains increasing attention. This review provides fundamental insights into the major mechanisms underpinning antibiotics removal by bacterial-algal consortium, including biodegradation, biosorption and bioaccumulation, and biodegradation is the main way removing antibiotics from wastewaters. The existing types of bioreactor systems for degrading antibiotics are introduced, which can be mainly divided into suspended growth systems and immobilized growth systems. Finally, the review highlights the short-term and long-term responses of bacterial-algal consortia to antibiotic stress. The short-term tolerance is demonstrated mainly through the production of reactive oxygen species (ROS) and the activation of the SOS response, while the long-term resistance is manifested in the enrichment and transfer of antibiotic resistance genes and the succession and evolution of microbial community. This review provides theoretical basis and technical reference for applications of bacterial-algal consortia to remove antibiotic pollutants from wastewaters.

Key words: bacterial-algal consortium, wastewater treatment, antibiotic, antibiotic resistance gene (ARG), stress response

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