Preservation of nitrogen and sulfur and passivation of heavy metals during sewage sludge composting with KH2PO4 and FeSO4

doi:10.1016/j.biortech.2019.122383

	Preservation of nitrogen and sulfur and passivation of heavy metals during sewage sludge composting with KH2PO4 and FeSO4
	Wang, Xiankai 1,2; Chen, Tongbin 1,2; Zheng, Guodi 1,2
刊名	BIORESOURCE TECHNOLOGY
	2020-02-01
卷号	297 页码:8
关键词	Sewage sludge Composting XANES spectra Nitrogen Sulfur Heavy metal
ISSN号	0960-8524
DOI	10.1016/j.biortech.2019.122383
通讯作者	Zheng, Guodi(zhenggd@igsnrr.ac.cn)
英文摘要	Composting is an effective method for treating sewage sludge. The aim of this work was to study preservation of nitrogen and sulfur and passivation of heavy metals during sewage sludge composting with KH2PO4 and FeSO4. The results show the loss rate of N decreased by 27.5% while that of S was increased by 32.1% compared with the control treatment during composting when KH2PO4 and FeSO4 were added. X-ray absorption near-edge structure spectra show that S was converted to a highly oxidizable state during sewage sludge composting with added KH2PO4. The mobility factors of Cu, Zn, and Pb after composting were found to decrease by 13.6%, 21.6%, and 3.8%, respectively, compared with those before composting when KH2PO4 was added. Adding these two materials to Cu and Zn inhibits Zn-3(PO4) (H2O)(4) and Cu-5(PO4)(2)(OH)(4) from transforming into more mobile forms, while adding these materials to Pb promotes Pb-3(PO4)(2) formation.
资助项目	National Natural Science Foundation of China[41371455] ; National Science and Technology Major Project[2016ZX05040002-005-001]
WOS关键词	PIG MANURE ; PHOSPHORUS SPECIATION ; PHOSPHATE AMENDMENTS ; BULKING AGENT ; SOIL ; WASTE ; BIOAVAILABILITY ; AERATION ; IMPACT ; ROCK
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000504829800097
资助机构	National Natural Science Foundation of China ; National Science and Technology Major Project
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/130912]
专题	中国科学院地理科学与资源研究所
通讯作者	Zheng, Guodi
作者单位	1.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, 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	Wang, Xiankai,Chen, Tongbin,Zheng, Guodi. Preservation of nitrogen and sulfur and passivation of heavy metals during sewage sludge composting with KH2PO4 and FeSO4[J]. BIORESOURCE TECHNOLOGY,2020,297:8.
APA	Wang, Xiankai,Chen, Tongbin,&Zheng, Guodi.(2020).Preservation of nitrogen and sulfur and passivation of heavy metals during sewage sludge composting with KH2PO4 and FeSO4.BIORESOURCE TECHNOLOGY,297,8.
MLA	Wang, Xiankai,et al."Preservation of nitrogen and sulfur and passivation of heavy metals during sewage sludge composting with KH2PO4 and FeSO4".BIORESOURCE TECHNOLOGY 297(2020):8.