洗衣废水影响纳米银团聚及溶解行为的关键因素研究进展OA北大核心CSTPCD

Silver nanoparticles have been widely used in textiles because of excellent antibacterial properties to inhibit the growth of bacteria and pathogenic microorganisms.However,the massive use of silver nanoparticles can also cause harm to the ecological environment.During the textile washing process,a large amount of silver nanoparticles will be released and enter the laundry wastewater.The washing conditions,including detergents,light,pH,and ionic strength,can affect the aggregation and dissolution behavior of silver nanoparticles,thereby affecting subsequent environmental processes and negatively affecting aquatic organisms and ecosystems.In this review,relevant domestic and foreign research literature were summarized to explore the effects of different washing conditions on the aggregation and dissolution behavior of silver nanoparticles,and to reduce the environmental risks brought by silver nanoparticles.The characteristics of laundry wastewater were summarized.Based on the characteristics of water quality,the influences of different washing conditions on the aggregation and dissolution behavior of silver nanoparticles in laundry wastewater were summarized.The single or combined effects and mechanisms of detergent types,light,pH,ionic strength and other washing conditions in laundry wastewater on the aggregation and dissolution behavior of silver nanoparticles were discussed.According to the mechanism,some suggestions were put forward to reduce the biological toxicity of silver nanoparticles,including reducing the release of silver nanoparticles during washing,and optimizing the treatment of laundry wastewater.Finally,the future research direction of silver nanoparticles in laundry wastewater was prospected,and the follow-up research suggestions were put forward.This review could provide a reference for further research on the migration and transformation of silver nanoparticles in laundry wastewater or other polluted water bodies,and also provide a way to reduce the release of silver nanoparticles in the washing process and control the pollution caused by silver nanoparticles.