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Novel approach on reduction in GHG emissions from sludge lime stabilization as an emergent and regional treatment in China
Liu, Hongtao
2018-11-08
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume8Pages:7
Corresponding AuthorLiu, Hongtao(liuht@igsnrr.ac.cn)
AbstractAs a typical organic solid waste, sludge plays an important role in contributing to greenhouse gas (GHG) emissions resulted by its treatment and disposal. As a temporary and emergent treatment measurement, sludge lime stabilization is regionally adopted in most sludge generated units in China. In present case, sludge lime stabilization system in China was productive of total GHG emissions, including indirect and direct emissions during lime stabilization and carbon reduction owing to lime synthesis and consumption, were first quantified respectively. The results indicated that electricity consumption was main component of indirect emissions, including mixing and transportation related mechanical equipment use. Direct emission was attributed to CO2 absorption during the second step in hydration reaction of lime stabilization. Meanwhile, a carbon credit portion of lime synthesis was also taken to the consideration of carbon budget. In brief, reduction in total replaceable carbon emission resulted by sludge lime treatment in comparison to landfill was calculated to be 0.8092 tCO(2)e.t(-1). As treated production, lime-stabilized sludge is suggested to amend acidic soil for its revegetation. It is concluded that lime stabilization of sludge shows a significant GHG reduction effect despite of its temporary and emergent nature.
DOI10.1038/s41598-018-35052-9
WOS KeywordSEWAGE-SLUDGE ; CEMENT INDUSTRY ; CLIMATE-CHANGE ; FLY-ASH ; SPECIATION ; ZEOLITE ; GROWTH ; SOIL ; ZN ; CU
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFE0113100] ; Chu Ko-chen Outstanding Young Scholars Program of the Institute of Geographic Sciences and Natural Resources Research, CAS[2017RC102] ; Ministry of Housing and Urban-Rural Development of China Funded Science and Technology Project[2012-K7-2] ; Scientific Instrument Developing Project of the Chinese Academy of Sciences[YZ201605] ; Beijing Nova Program Interdisciplinary Cooperation Project[Z161100004916029]
Funding OrganizationNational Key Research and Development Program of China ; Chu Ko-chen Outstanding Young Scholars Program of the Institute of Geographic Sciences and Natural Resources Research, CAS ; Ministry of Housing and Urban-Rural Development of China Funded Science and Technology Project ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; Beijing Nova Program Interdisciplinary Cooperation Project
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000449499500053
PublisherNATURE PUBLISHING GROUP
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Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52491
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiu, Hongtao
AffiliationChinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Liu, Hongtao. Novel approach on reduction in GHG emissions from sludge lime stabilization as an emergent and regional treatment in China[J]. SCIENTIFIC REPORTS,2018,8:7.
APA Liu, Hongtao.(2018).Novel approach on reduction in GHG emissions from sludge lime stabilization as an emergent and regional treatment in China.SCIENTIFIC REPORTS,8,7.
MLA Liu, Hongtao."Novel approach on reduction in GHG emissions from sludge lime stabilization as an emergent and regional treatment in China".SCIENTIFIC REPORTS 8(2018):7.
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