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Microfabries of lacustrine sediments to pollutant adsorption from a polluted Eutrophic lake, the Yangtze delta region
Yi, C. L.1; Boyle, J.2; Rose, N. L.3; Xie, P.4; Yi, CL, Nanjing Univ, Dept Geog, Key Lab Coastal & Island Dev Educ Dept, Nanjing 210093, Peoples R China
2006-12-01
Source PublicationJOURNAL OF COASTAL RESEARCH
ISSN0749-0208
Volume3Pages:1412-1417
AbstractTwo types of microfabrics relating to pollutant adsorption were studied in the scanning electronic microscope (SEM) in a polluted, eutrophic lake, the Yangtze delta region. Agglutinational texture or the aggregates of small particles are composed of clay minerals and fine organic fragments among the silty grains and the coatings with a thickness about 1 mu m were on the surfaces of the silty grains in the sediments. The chemical constituents of the aggregates and the coatings are K, Na, Ca, Mg, Si, Al, O, Fe, Ti, C, N and P determined in X-ray energy spectrometry connected with the SEM. In some cases, Pb was detected in the aggregates in the top sediment. It is suggested that nutrients and metals are adsorbed to the aggregates, which were formed by electrostatic attraction of physicochemical floes. The coatings on the surface of quartz grains were formed by the interaction of dissociated Al, Si, Fe, etc from silicates with dissolved N, P and C nutrients in interstitial water, which was aroused by human pollution to the lake in recent two decades.; Two types of microfabrics relating to pollutant adsorption were studied in the scanning electronic microscope (SEM) in a polluted, eutrophic lake, the Yangtze delta region. Agglutinational texture or the aggregates of small particles are composed of clay minerals and fine organic fragments among the silty grains and the coatings with a thickness about 1 mu m were on the surfaces of the silty grains in the sediments. The chemical constituents of the aggregates and the coatings are K, Na, Ca, Mg, Si, Al, O, Fe, Ti, C, N and P determined in X-ray energy spectrometry connected with the SEM. In some cases, Pb was detected in the aggregates in the top sediment. It is suggested that nutrients and metals are adsorbed to the aggregates, which were formed by electrostatic attraction of physicochemical floes. The coatings on the surface of quartz grains were formed by the interaction of dissociated Al, Si, Fe, etc from silicates with dissolved N, P and C nutrients in interstitial water, which was aroused by human pollution to the lake in recent two decades.
SubtypeArticle
KeywordCoatings Aggregates Pollutants
Department[Yi, C. L.] Nanjing Univ, Dept Geog, Key Lab Coastal & Island Dev Educ Dept, Nanjing 210093, Peoples R China; [Boyle, J.] Univ Liverpool, Dept Geog, Liverpool L69 3BX, Merseyside, England; [Rose, N. L.] UCL, Environm Change Res Ctr, London WC1H 0AP, England; [Xie, P.] CAS, Inst Hydrobiol, Wuhan 430077, Hubei, Peoples R China
Subject AreaEnvironmental Sciences ; Geography, Physical ; Geosciences, Multidisciplinary
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Physical Geography ; Geology
WOS SubjectEnvironmental Sciences ; Geography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000202961500036
WOS KeywordCOASTAL-PLAIN ; METAL-IONS ; SORPTION ; CHINA ; COATINGS ; TAIHU ; IRON ; PHOSPHORUS ; EXTRACTION ; PARTICLES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8752
Collection期刊论文
Corresponding AuthorYi, CL, Nanjing Univ, Dept Geog, Key Lab Coastal & Island Dev Educ Dept, Nanjing 210093, Peoples R China
Affiliation1.Nanjing Univ, Dept Geog, Key Lab Coastal & Island Dev Educ Dept, Nanjing 210093, Peoples R China
2.Univ Liverpool, Dept Geog, Liverpool L69 3BX, Merseyside, England
3.UCL, Environm Change Res Ctr, London WC1H 0AP, England
4.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430077, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Yi, C. L.,Boyle, J.,Rose, N. L.,et al. Microfabries of lacustrine sediments to pollutant adsorption from a polluted Eutrophic lake, the Yangtze delta region[J]. JOURNAL OF COASTAL RESEARCH,2006,3:1412-1417.
APA Yi, C. L.,Boyle, J.,Rose, N. L.,Xie, P.,&Yi, CL, Nanjing Univ, Dept Geog, Key Lab Coastal & Island Dev Educ Dept, Nanjing 210093, Peoples R China.(2006).Microfabries of lacustrine sediments to pollutant adsorption from a polluted Eutrophic lake, the Yangtze delta region.JOURNAL OF COASTAL RESEARCH,3,1412-1417.
MLA Yi, C. L.,et al."Microfabries of lacustrine sediments to pollutant adsorption from a polluted Eutrophic lake, the Yangtze delta region".JOURNAL OF COASTAL RESEARCH 3(2006):1412-1417.
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