Passivation of lead and cadmium and increase of the nutrient content during sewage sludge composting by phosphate amendments

doi:10.1016/j.envres.2020.109431

	Passivation of lead and cadmium and increase of the nutrient content during sewage sludge composting by phosphate amendments
	Zheng, Guodi 1,2; Wang, Xiankai 1,2; Chen, Tongbin 1,2; Yang, Jun 1; Yang, Junxing 1; Liu, Junwan 1,2; Shi, Xiaoxiao 1,2
刊名	ENVIRONMENTAL RESEARCH
	2020-06-01
卷号	185 页码:9
关键词	Sewage sludge Composting Heavy metals Phosphorus speciation X-ray absorption near-edge structure
ISSN号	0013-9351
DOI	10.1016/j.envres.2020.109431
通讯作者	Zheng, Guodi(zhenggd@igsnrr.ac.cn) ; Wang, Xiankai(wangxk.14s@igsnrr.ac.cn)
英文摘要	As an efficient and cost-effective biological treatment method for sewage sludge, composting has been widely used worldwide. To passivate heavy metals and enhance the nutrient content in compost, in the present study, phosphate rock, calcium magnesium phosphate, and monopotassium phosphate were added to the composting substrate. According to the Community Bureau of Reference sequential extraction procedure, phosphate rock and monopotassium phosphate amendments exhibit a good passivation effect on Cd and Pb. The X-ray diffraction patterns proved the formation of Pb-3(PO4)(2) and Cd-5(PO4)(2)SiO4 crystals, and X-ray absorption near-edge structure spectroscopy illustrated the change in P speciation after phosphate amendment. Furthermore, phosphate amendment increased the contents of total P and available P, and it reduced the loss of N during sewage sludge composting. The germination index showed that the target phosphate amendments in sewage sludge compost had no negative effects on seed germination, and this method has great potential to be used as a soil amendment.
资助项目	National Key Research and Development Program of China[2018YFD0800601] ; National Natural Science Foundation of China[41371455]
WOS关键词	HEAVY-METALS ; PIG MANURE ; PHOSPHORUS SPECIATION ; TRANSFORMATION ; SOIL ; BIOAVAILABILITY ; IMMOBILIZATION ; MOBILITY ; IMPACT ; COPPER
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000530034100061
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/159930]
专题	中国科学院地理科学与资源研究所
通讯作者	Zheng, Guodi; Wang, Xiankai
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Guodi,Wang, Xiankai,Chen, Tongbin,et al. Passivation of lead and cadmium and increase of the nutrient content during sewage sludge composting by phosphate amendments[J]. ENVIRONMENTAL RESEARCH,2020,185:9.
APA	Zheng, Guodi.,Wang, Xiankai.,Chen, Tongbin.,Yang, Jun.,Yang, Junxing.,...&Shi, Xiaoxiao.(2020).Passivation of lead and cadmium and increase of the nutrient content during sewage sludge composting by phosphate amendments.ENVIRONMENTAL RESEARCH,185,9.
MLA	Zheng, Guodi,et al."Passivation of lead and cadmium and increase of the nutrient content during sewage sludge composting by phosphate amendments".ENVIRONMENTAL RESEARCH 185(2020):9.