Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
Sci Total Environ. 2022 Jan 10;803:150009. doi: 10.1016/j.scitotenv.2021.150009. Epub 2021 Aug 31.
The anaerobic ammonium oxidation (anammox) process has been recognized as an efficient nitrogen removal technology. However, anammox bacteria are susceptible to surrounding environments and different pollutants, which limits the extensive application of the anammox process worldwide. Numerous researchers investigate the effects of various pollutants on the anammox process or bacteria, and related findings have also been reviewed with the focused on their inhibitory effects on process performance and microbial community. This review systemically summarized the recent advances in the inhibition, mechanism and recovery process of traditional and emerging pollutants on the anammox process over a decade, such as organics, metals, antibiotics, nanoparticles, etc. Generally, low-concentration pollutants exhibited a promotion on the anammox activity, while high-concentration pollutants showed inhibitory effects. The inhibitory threshold concentration of different pollutants varied. The combined effects of multipollutant also attracts more attentions, including synergistic, antagonistic and independent effects. Additionally, remaining problems and research needs are further proposed. This review provides a foundation for future research on the inhibition in anammox process, and promotes the proper operation of anammox processes treating different types of wastewaters.
厌氧氨氧化（anammox）工艺已被公认为一种高效的脱氮技术。然而，厌氧氨氧化菌易受周围环境和不同污染物的影响，这限制了该工艺在全球范围内的广泛应用。许多研究人员研究了各种污染物对厌氧氨氧化工艺或细菌的影响，相关研究结果也得到了综述，重点关注了它们对工艺性能和微生物群落的抑制作用。本综述系统地总结了近十几年来传统和新兴污染物对厌氧氨氧化工艺的抑制、作用机制和恢复过程的最新进展，如有机物、金属、抗生素、纳米颗粒等。一般来说，低浓度污染物对厌氧氨氧化活性表现出促进作用，而高浓度污染物则表现出抑制作用。不同污染物的抑制阈值浓度不同。多污染物的联合作用也引起了更多的关注，包括协同、拮抗和独立作用。此外，还进一步提出了剩余问题和研究需求。本综述为未来厌氧氨氧化工艺抑制方面的研究提供了基础，并促进了处理不同类型废水的厌氧氨氧化工艺的合理运行。
