Occurrence and leaching of silver in municipal sewage sludge in China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Occurrence and leaching of silver in municipal sewage sludge in China
	Chen, Ying; Mao, Yuxiang; Song, Maoyong; Yin, Yongguang; Liu, Guangliang; Cai, Yong
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	2020-02
卷号	189 页码:1-11
关键词	Silver Municipal sewage sludge Occurrence Leaching Thiosulfate
ISSN号	0147-6513
英文摘要	Sewage treatment plants effectively remove silver (Ag) from sewage. Sewage sludge can therefore be important Ag sinks, polluting the environment with this element. In this work, we report a nation-wide survey on the Ag content of sewage sludge in China (0.23-19.02 mg kg(-1), average 2.72 mg kg(-1)). Furthermore, we identify that sludge disposal represents an important Ag pollution source (84.48 tons in 2016) for the environment by estimating the national and provincial inventories of sludge-borne Ag in China. Also the positive correlations between the per capita gross domestic product (GDP)/provincial GDP and the content/mass loadings of Ag highlighted the impact of human activities on Ag pollution. In different samples, strong complexation of thiosulfate contributed to the highest leaching concentration (95.00-438.15 mu g kg(-1)) and ratio (1.9-8.8%) of Ag, emphasizing the necessity of a long-term risk assessment for landfill and land application of sludge.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44756]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Chen, Ying,Mao, Yuxiang,Song, Maoyong,et al. Occurrence and leaching of silver in municipal sewage sludge in China[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2020,189:1-11.
APA	Chen, Ying,Mao, Yuxiang,Song, Maoyong,Yin, Yongguang,Liu, Guangliang,&Cai, Yong.(2020).Occurrence and leaching of silver in municipal sewage sludge in China.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,189,1-11.
MLA	Chen, Ying,et al."Occurrence and leaching of silver in municipal sewage sludge in China".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 189(2020):1-11.