Remediation of metal-contaminated marine sediments using active capping with limestone, steel slag, and activated carbon: a laboratory experiment

Environmental Technology
Seong-Jik ParkJae-Woo Choi

Abstract

The objectives of this study are to assess the effectiveness of limestone (LS), steel slag (SS), and activated carbon (AC) as capping materials to sequester trace metals including As, Cd, Cr, Cu, Ni, Pb, and Zn in heavily contaminated marine sediments and to minimize the release of these metals into the water column. A flat flow tank was filled with 10 mm of capping material, contaminated sediments, and seawater, and the metal concentrations were monitored over 32 d. After completion of the flow tank experiments, the sediments below the capping material were sampled and were sequentially extracted. SS effectively reduced the As, Cr, Cu, Ni, Pb, and particularly Cd elution from the contaminated sediments to the overlying seawater. Adsorption and surface precipitation were the key mechanisms for interrupting the release of cationic trace metals by SS. LS was appropriate for interrupting the release of only Cu and Pb with high hydrolysis reaction constants. AC capping could interrupt the release of Cr, Cu, Ni, and particularly Zn from the sediments by binding with the metals via electrostatic interaction. The results obtained from the sequential extraction revealed that LS capping is appropriate for stabilizing Zn, whereas AC is a...Continue Reading

References

Mar 22, 2001·The Science of the Total Environment·T ZoumisW Calmano
Jan 2, 2003·Journal of Environmental Monitoring : JEM·A V FilgueirasC Bendicho
Feb 8, 2003·Journal of Hazardous Materials·Sandhya Babel, Tonni Agustiono Kurniawan
Nov 17, 2004·Environmental Science & Technology·John R ZimmermanRichard G Luthy
Jun 1, 2005·Chemosphere·Fu-Shen Zhang, Hideaki Itoh
Sep 10, 2005·The Science of the Total Environment·A S KnoxM H Paller
Nov 23, 2005·The Science of the Total Environment·Tonni Agustiono KurniawanSandhya Babel
Mar 17, 2006·Environmental Pollution·Jurate KumpieneChristian Maurice
Apr 28, 2006·Integrated Environmental Assessment and Management·Craig Zeller, Bradford Cushing
Jun 16, 2007·Marine Environmental Research·Yeo-Myoung ChoRichard G Luthy
Jun 13, 2008·Journal of Hazardous Materials·Jian-Feng PengGuang-Lei Qiu
Feb 9, 2010·Journal of Hazardous Materials·Louisa Wessels Perelo
Mar 6, 2012·Environmental Toxicology and Chemistry·M I RakowskaA A Koelmans

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Citations

Aug 30, 2020·Water Environment Research : a Research Publication of the Water Environment Federation·Kendrick Jaglal
May 18, 2021·Environmental Pollution·Yuying ZhangLei Wang
Dec 3, 2021·Environmental Toxicology and Chemistry·Eduardo Cimino CerviG Allen Burton

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