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Passivation of lead and cadmium and increase of the nutrient content during sewage sludge composting by phosphate amendments
Zheng, Guodi1,2; Wang, Xiankai1,2; Chen, Tongbin1,2; Yang, Jun1; Yang, Junxing1; Liu, Junwan1,2; Shi, Xiaoxiao1,2
2020-06-01
Source PublicationENVIRONMENTAL RESEARCH
ISSN0013-9351
Volume185Pages:9
Corresponding AuthorZheng, Guodi(zhenggd@igsnrr.ac.cn) ; Wang, Xiankai(wangxk.14s@igsnrr.ac.cn)
AbstractAs 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.
KeywordSewage sludge Composting Heavy metals Phosphorus speciation X-ray absorption near-edge structure
DOI10.1016/j.envres.2020.109431
WOS KeywordHEAVY-METALS ; PIG MANURE ; PHOSPHORUS SPECIATION ; TRANSFORMATION ; SOIL ; BIOAVAILABILITY ; IMMOBILIZATION ; MOBILITY ; IMPACT ; COPPER
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2018YFD0800601] ; National Natural Science Foundation of China[41371455]
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology ; Public, Environmental & Occupational Health
WOS SubjectEnvironmental Sciences ; Public, Environmental & Occupational Health
WOS IDWOS:000530034100061
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/159931
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZheng, Guodi; Wang, Xiankai
Affiliation1.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
Recommended Citation
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.
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