微藻-细菌共生系统处理重金属废水的研究进展、挑战与展望。
Advances, challenges, and prospects in microalgal-bacterial symbiosis system treating heavy metal wastewater.
机构信息
Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
出版信息
Chemosphere. 2023 Dec;345:140448. doi: 10.1016/j.chemosphere.2023.140448. Epub 2023 Oct 13.
Heavy metal (HM) pollution, particularly in its ionic form in water bodies, is a chronic issue threatening environmental security and human health. The microalgal-bacterial symbiosis (MABS) system, as the basis of water ecosystems, has the potential to treat HM wastewater in a sustainable manner, with the advantages of environmental friendliness and carbon sequestration. However, the differences between laboratory studies and engineering practices, including the complexity of pollutant compositions and extreme environmental conditions, limit the applications of the MABS system. Additionally, the biomass from the MABS system containing HMs requires further disposal or recycling. This review summarized the recent advances of the MABS system treating HM wastewater, including key mechanisms, influence factors related to HM removal, and the tolerance threshold values of the MABS system to HM toxicity. Furthermore, the challenges and prospects of the MABS system in treating actual HM wastewater are analyzed and discussed, and suggestions for biochar preparation from the MABS biomass containing HMs are provided. This review provides a reference point for the MABS system treating HM wastewater and the corresponding challenges faced by future engineering practices.
重金属（HM）污染，特别是水体中的离子形式，是威胁环境安全和人类健康的一个慢性问题。微藻-细菌共生（MABS）系统作为水生态系统的基础，具有以可持续的方式处理 HM 废水的潜力，具有环保和碳固存的优点。然而，实验室研究与工程实践之间的差异，包括污染物成分的复杂性和极端环境条件，限制了 MABS 系统的应用。此外，含有 HM 的 MABS 系统的生物质需要进一步处理或回收。本综述总结了 MABS 系统处理 HM 废水的最新进展，包括关键机制、与 HM 去除相关的影响因素以及 MABS 系统对 HM 毒性的耐受阈值。此外，还分析和讨论了 MABS 系统处理实际 HM 废水所面临的挑战和前景，并就含有 HM 的 MABS 生物质的生物炭制备提出了建议。本综述为 MABS 系统处理 HM 废水及其未来工程实践所面临的挑战提供了参考。
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