CAJ | 학술논문

近年来随着纳米银生产和使用的逐渐增多，导致环境中纳米银的浓度逐渐升高。物质流分析表明，大部分的纳米银将随污水进入污水处理厂，进而富集到污泥中。鉴于纳米银的抗菌性，其可能会对污水处理系统中的微生物产生影响。本文首先系统介绍了环境水体中纳米银的不同来源（即天然来源和人为来源），着重总结了目前对其影响污水和污泥处理系统的研究，即对污水中碳、氮、磷的去除效率和污泥厌氧消化过程的影响，并进一步分析了其对这一过程中微生物的毒性作用，探讨了其毒性效应的来源及作用机理，最后对该领域的研究进行了展望。综述内容为深入研究纳米银对污水和污泥处理系统的潜在风险提供了一定的理论基础。
근년래수착납미은생산화사용적축점증다，도치배경중납미은적농도축점승고。물질류분석표명，대부분적납미은장수오수진입오수처리엄，진이부집도오니중。감우납미은적항균성，기가능회대오수처리계통중적미생물산생영향。본문수선계통개소료배경수체중납미은적불동래원（즉천연래원화인위래원），착중총결료목전대기영향오수화오니처리계통적연구，즉대오수중탄、담、린적거제효솔화오니염양소화과정적영향，병진일보분석료기대저일과정중미생물적독성작용，탐토료기독성효응적래원급작용궤리，최후대해영역적연구진행료전망。종술내용위심입연구납미은대오수화오니처리계통적잠재풍험제공료일정적이론기출。
In recent years,the production and use of silver nanoparticles(AgNPs) has gradually increased,resulting in higher concentration of AgNPs in the environment. Material flow analysis shows that most of AgNPs in wastewater enter into wastewater treatment plants(WWTPs),and finally accumulate in the sludge. Due to the antibacterial property,AgNPs might have adverse effects on microorganisms involved in WWTPs. This paper comprehensively summarizes different sources of AgNPs in water systems(i.e. natural and artificial sources),potential risks to wastewater and sludge treatment facilities,such as the effects on removal efficiencies of carbon,nitrogen and phosphorus and anaerobic sludge digestion,and the underlying mechanisms of their toxicities to microorganisms involved in WWTPs. Finally,the development direction of this research field is also discussed. These results can provide a theoretical basis for further investigation of the potential risks of AgNPs to wastewater and sludge treatment systems.