SwePub
Sök i LIBRIS databas

  Utökad sökning

AMNE:(NATURAL SCIENCES Earth and Related Environmental Sciences Geology)
 

Sökning: AMNE:(NATURAL SCIENCES Earth and Related Environmental Sciences Geology) > Sediment Remediatio...

  • Rämö, RobertStockholms universitet,Institutionen för ekologi, miljö och botanik (författare)

Sediment Remediation Using Activated Carbon: Effects of Sorbent Particle Size and Resuspension on Sequestration of Metals and Organic Contaminants.

  • Artikel/kapitelEngelska2022

Förlag, utgivningsår, omfång ...

  • 2022-02-25
  • Wiley,2022

Nummerbeteckningar

  • LIBRIS-ID:oai:gup.ub.gu.se/313144
  • https://gup.ub.gu.se/publication/313144URI
  • https://doi.org/10.1002/etc.5292DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-201136URI

Kompletterande språkuppgifter

  • Språk:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Thin-layer capping using activated carbon (AC) has been described as a cost-effective in situ sediment remediation method for organic contaminants. In this study, we compare the capping efficiency of powdered AC (PAC) against granular AC (GAC) using contaminated sediment from Oskarshamn harbor, Sweden. The effects of resuspension on contaminant retention and cap integrity were also studied. Intact sediment cores were collected from the outer harbor and brought to the laboratory. Three thin-layer caps, consisting of PAC or GAC mixed with clay, or clay only, were added to the sediment surface. Resuspension was created using a motor-driven paddle to simulate propeller wash from ship traffic. Passive samplers were placed in the sediment and in the water column to measure the sediment-to-water release of PAHs, PCBs, and metals. Our results show that a thin-layer cap with PAC reduced sediment-to-water fluxes of PCBs by 57 % under static conditions and 91 % under resuspension. Thin-layer capping with GAC was less effective than PAC, but reduced fluxes of high-molecular weight PAHs. Thin-layer capping with AC was less effective in retaining metals, except for Cd, which release was significantly reduced by PAC. Resuspension generally decreased water concentrations of dissolved cationic metals, perhaps due to sorption to suspended sediment particles. Sediment resuspension in treatments without capping increased fluxes of PCBs with log Kow > 7 and PAHs with log Kow 5 6, but resuspension reduced PCB and PAH fluxes through the PAC thin-layer cap. Overall, PAC performed better than GAC, but adverse effects on the benthic community and transport of PAC to non-target areas are drawbacks that favor the use of GAC. This article is protected by copyright. All rights reserved.© 2022 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Bonaglia, Stefano,1983Stockholms universitet,Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences,Institutionen för ekologi, miljö och botanik(Swepub:su)sbona (författare)
  • Nybom, InnaStockholms universitet,Institutionen för miljövetenskap(Swepub:su)inybl (författare)
  • Kreutzer, Anne (författare)
  • Witt, Gesine (författare)
  • Sobek, AnnaStockholms universitet,Institutionen för miljövetenskap(Swepub:su)subek (författare)
  • Gunnarsson, Jonas S.Stockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)jgunn (författare)
  • Stockholms universitetInstitutionen för ekologi, miljö och botanik (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Environmental toxicology and chemistry: Wiley41:4, s. 1096-11101552-86180730-7268

Internetlänk

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy