Heavy metals speciation in soakaways sediment and evaluation of metal retention properties of surrounding soil

Hossain, M. A., Furumai, H., Nakajima, F. and Aryal, R. K. (2007) Heavy metals speciation in soakaways sediment and evaluation of metal retention properties of surrounding soil. Water Science and Technology, 56 11: 81-89. doi:10.2166/wst.2007.746


Author Hossain, M. A.
Furumai, H.
Nakajima, F.
Aryal, R. K.
Title Heavy metals speciation in soakaways sediment and evaluation of metal retention properties of surrounding soil
Journal name Water Science and Technology   Check publisher's open access policy
ISSN 0273-1223
1996-9732
Publication date 2007-01-01
Sub-type Article (original research)
DOI 10.2166/wst.2007.746
Open Access Status
Volume 56
Issue 11
Start page 81
End page 89
Total pages 9
Place of publication London, United Kingdom
Publisher IWA Publishing
Language eng
Abstract Heavy metals speciation analysis was carried out on sediment samples accumulated within soakaways in an old stormwater infiltration facility in Tokyo, Japan and on a soil core sample collected near the facility. Heavy metals content in soakaways sediments were much elevated compared to nearby surface soil with the content for Zn, Pb and Cd reaching about 5 to 10 times the content in surface soil. Speciation results revealed that significant amount of the accumulated heavy metals were present in potential mobile fractions, posing threat of release to underlying soil with changing environmental conditions. Detail analyses of soil characteristics indicated significant heterogeneity with depth, especially between the surface soil and underlying soil at site. Decrease in potential adsorption sites with depth was observed in case of underlying soil. Reduced adsorption capacity for heavy metals was evidenced for underlying soil when compared with surface soil. Furthermore, less capability of the soil organic matter to bind heavy metals was evidenced through speciation analyses, which raises concern over the long-term pollution retention potential of the underlying soil receiving infiltrated runoff.
Keyword Adsorption
Heavy metals
Infiltration
Sediment
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: ERA 2012 Admin Only
Advanced Water Management Centre Publications
 
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Created: Fri, 10 Feb 2012, 22:27:11 EST by Dr Rupak Aryal on behalf of Advanced Water Management Centre