Removal of organotin compounds and metals from Swedish marine sediment using Fenton’s reagent and electrochemical treatment
Artikel i vetenskaplig tidskrift, 2022

Metal and tributyltin (TBT) contaminated sediments are problematic for sediment managers and the environment. This study is the first to compare Fenton’s reagent and electrochemical treatment as remediation methods for the removal of TBT and metals using laboratory-scale experiments on contaminated dredged sediment. The costs and the applicability of the developed methods were also compared and discussed. Both methods removed > 98% TBT from TBT-spiked sediment samples, while Fenton’s reagent removed 64% of the TBT and electrolysis 58% of the TBT from non-spiked samples. TBT in water phase was effectively degraded in both experiments on spiked water and in leachates during the treatment of the sediment. Positive correlations were observed between TBT removal and the added amount of hydrogen peroxide and current density. Both methods removed metals from the sediment, but Fenton’s reagent was identified as the most potent option for effective removal of both metals and TBT, especially from highly metal-contaminated sediment. However, due to risks associated with the required chemicals and low pH level in the sediment residue following the Fenton treatment, electrochemical treatment could be a more sustainable option for treating larger quantities of contaminated sediment.

Tributyltin (TBT)

Remediation

Metals

Sediment management

Chemical oxidation

Electrolysis

Författare

Anna Norén

Chalmers, Arkitektur och samhällsbyggnadsteknik, Vatten Miljö Teknik

Célia Lointier

Chalmers, Arkitektur och samhällsbyggnadsteknik, Vatten Miljö Teknik

Oskar Modin

Chalmers, Arkitektur och samhällsbyggnadsteknik, Vatten Miljö Teknik

Ann-Margret Hvitt Strömvall

Chalmers, Arkitektur och samhällsbyggnadsteknik, Vatten Miljö Teknik

Sebastien Rauch

Chalmers, Arkitektur och samhällsbyggnadsteknik, Vatten Miljö Teknik

Yvonne Andersson-Sköld

Chalmers, Arkitektur och samhällsbyggnadsteknik

Statens Väg- och Transportforskningsinstitut (VTI)

Karin Karlfeldt Fedje

Recycling and Waste Management

Chalmers, Arkitektur och samhällsbyggnadsteknik, Vatten Miljö Teknik

Environmental Science and Pollution Research

0944-1344 (ISSN)

Vol. In Press

Ämneskategorier

Vattenteknik

Vattenbehandling

Miljövetenskap

DOI

10.1007/s11356-021-17554-8

Mer information

Senast uppdaterat

2022-01-14