Mass stabilisation and leaching characteristics of organotins from contaminated dredged sediments

Turner, BD; Spadari, M

Mass stabilisation and leaching characteristics of organotins from contaminated dredged sediments

Turner, BD Spadari, M

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Publisher:: Springer Nature
Publication Type:: Journal Article
Citation:: International Journal of Environmental Science and Technology, 2022, 19, (8), pp. 7425-7436
Issue Date:: 2022-08-01

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Field	Value	Language
dc.contributor.author	Turner, BD
dc.contributor.author	Spadari, M
dc.date.accessioned	2023-04-11T02:12:33Z
dc.date.available	2023-04-11T02:12:33Z
dc.date.issued	2022-08-01
dc.identifier.citation	International Journal of Environmental Science and Technology, 2022, 19, (8), pp. 7425-7436
dc.identifier.issn	1735-1472
dc.identifier.issn	1735-2630
dc.identifier.uri	http://hdl.handle.net/10453/169504
dc.description.abstract	Organotins including tributyl tin (TBT) are an effective biocide that were widely used to prevent or inhibit the growth of marine invertebrates on a ship’s hull. The widespread use of these, however, has created a lasting legacy of TBT-contaminated sediments the world over. Here, experiments assessing the unconfined compressive strength and leach performance of various binders on the stabilsation of organotin contaminated estuarine sediments are demonstrated using monolithic semi-dynamic leach tests. In addition to traditional binders such as Ordinary Portland Cement (OPC), sediment amendments to increase the organic content (OC) using protein powder from Cannabis sativa L. (hemp) plant are kinetically modelled to determine the long-term leachability of organotins. Results show that after 120 days of continuous testing, the OPC + hemp amended monolith cumulatively leached ~ 68 μg Sn/m2 TBT with the control (OPC only) performing worst leaching ~ 180 μg Sn/m2 TBT. Long-term kinetic modelling of the data indicated that the control would leach a cumulative maximum of ~ 327 μg Sn/m2 TBT compared to only ~ 68 μg Sn/m2 TBT for the OC amended sample well below the Finnish guideline maxima of 672 μg Sn/m2 TBT.
dc.language	en
dc.publisher	Springer Nature
dc.relation.ispartof	International Journal of Environmental Science and Technology
dc.relation.isbasedon	10.1007/s13762-021-03657-9
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Sciences
dc.title	Mass stabilisation and leaching characteristics of organotins from contaminated dredged sediments
dc.type	Journal Article
utslib.citation.volume	19
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2023-04-11T02:12:32Z
pubs.issue	8
pubs.publication-status	Published
pubs.volume	19
utslib.citation.issue	8

Abstract:

Organotins including tributyl tin (TBT) are an effective biocide that were widely used to prevent or inhibit the growth of marine invertebrates on a ship’s hull. The widespread use of these, however, has created a lasting legacy of TBT-contaminated sediments the world over. Here, experiments assessing the unconfined compressive strength and leach performance of various binders on the stabilsation of organotin contaminated estuarine sediments are demonstrated using monolithic semi-dynamic leach tests. In addition to traditional binders such as Ordinary Portland Cement (OPC), sediment amendments to increase the organic content (OC) using protein powder from Cannabis sativa L. (hemp) plant are kinetically modelled to determine the long-term leachability of organotins. Results show that after 120 days of continuous testing, the OPC + hemp amended monolith cumulatively leached ~ 68 μg Sn/m2 TBT with the control (OPC only) performing worst leaching ~ 180 μg Sn/m2 TBT. Long-term kinetic modelling of the data indicated that the control would leach a cumulative maximum of ~ 327 μg Sn/m2 TBT compared to only ~ 68 μg Sn/m2 TBT for the OC amended sample well below the Finnish guideline maxima of 672 μg Sn/m2 TBT.

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http://hdl.handle.net/10453/169504