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Effect of phosphate amendments on improving the fertilizer efficiency and reducing the mobility of heavy metals during sewage sludge composting
Wang, Xiankai1,2; Zheng, Guodi1,2; Chen, Tongbin1,2; Shi, Xiaoxiao1,2; Wang, Yuewei1,2; Nie, Erqi1,2; Liu, Junwan1,2
2019-04-01
Source PublicationJOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN0301-4797
Volume235Pages:124-132
Corresponding AuthorZheng, Guodi(zhenggd@igsnrr.ac.cn)
AbstractComposting has been globally applied as an effective and cost-efficient process to manage and reuse sewage sludge. In the present study, four different phosphates as well as a mixture of ferrous sulfate and monopotassium phosphate were used in sewage sludge composting. The results showed that these phosphate amendments promoted an increase in temperature and the degradation of organic matter as well as reduction on nitrogen loss during 18 days of composting. In addition, ferrous sulfate and phosphate had a synergistic effect on reducing nitrogen loss. The contents of total phosphorus and available phosphorus in the compost with addition of 1% phosphate were 40.9% and 66.1% higher than the compost with control treatment. Using the BCR (Community Bureau of Reference) sequential extraction procedure, the addition of calcium magnesium phosphate significantly reduced the mobility factor of Cd, Zn and Cu by 24.2%, 1.7% and 18.8%, respectively. The mobility factors of Pb were increased in all samples, but the monopotassium phosphate treated sample exhibited the greatest Pb passivation ability with the lowest mobility factor increase (1.8%) among all treatments. The X-ray diffraction patterns of compost samples indicated that the passivation mechanism of Cu and Zn may be the forming CuFeS(2 )and ZnCu(P2O7) crystals during sewage sludge composting. The germination index showed that the compost of all treatments was safe for agricultural application; the germination index of the calcium magnesium phosphate treatment was 99.9 +/- 11.8%, which was the highest among all treatments.
KeywordSewage sludge Composting Ferrous sulfate Heavy metal Nutrient Phosphate
DOI10.1016/j.jenvman.2019.01.048
WOS KeywordMUNICIPAL SOLID-WASTE ; ORGANIC-MATTER DEGRADATION ; PIG MANURE ; NITROGEN TRANSFORMATION ; BULKING AGENT ; BIOAVAILABILITY ; SPECIATION ; MATURITY ; BIOCHAR ; ROCK
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFD0501408]
Funding OrganizationNational Key Research and Development Program of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000459527800015
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/49494
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZheng, Guodi
Affiliation1.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
Recommended Citation
GB/T 7714
Wang, Xiankai,Zheng, Guodi,Chen, Tongbin,et al. Effect of phosphate amendments on improving the fertilizer efficiency and reducing the mobility of heavy metals during sewage sludge composting[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2019,235:124-132.
APA Wang, Xiankai.,Zheng, Guodi.,Chen, Tongbin.,Shi, Xiaoxiao.,Wang, Yuewei.,...&Liu, Junwan.(2019).Effect of phosphate amendments on improving the fertilizer efficiency and reducing the mobility of heavy metals during sewage sludge composting.JOURNAL OF ENVIRONMENTAL MANAGEMENT,235,124-132.
MLA Wang, Xiankai,et al."Effect of phosphate amendments on improving the fertilizer efficiency and reducing the mobility of heavy metals during sewage sludge composting".JOURNAL OF ENVIRONMENTAL MANAGEMENT 235(2019):124-132.
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