Search: WFRF:(Samuelsson H)
> (2010-2014) >
Remediation of Cont...
-
Cornelissen, GerardStockholms universitet,Institutionen för tillämpad miljövetenskap (ITM)
(author)
Remediation of Contaminated Marine Sediment Using Thin-Layer Capping with Activated Carbon-A Field Experiment in Trondheim Harbor, Norway
- Article/chapterEnglish2011
Publisher, publication year, extent ...
-
2011-06-27
-
American Chemical Society (ACS),2011
-
printrdacarrier
Numbers
-
LIBRIS-ID:oai:DiVA.org:su-66598
-
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-66598URI
-
https://doi.org/10.1021/es2011397DOI
Supplementary language notes
-
Language:English
-
Summary in:English
Part of subdatabase
Classification
-
Subject category:ref swepub-contenttype
-
Subject category:art swepub-publicationtype
Notes
-
authorCount :11
-
In situ amendment of contaminated sediments using activated carbon (AC) is a recent remediation technique, where the strong sorption of contaminants to added AC reduces their release from sediments and uptake into organisms. The current study describes a marine underwater field pilot study in Trondheim harbor, Norway, in which powdered AC alone or in combination with sand or clay was tested as a thin-layer capping material for polycyclic aromatic hydrocarbon (PAH)-contaminated sediment. Several novel elements were included, such as measuring PAH fluxes, no active mixing of AC into the sediment, and the testing of new manners of placing a thin AC cap on sediment, such as AC+clay and AC+sand combinations. Innovative chemical and biological monitoring methods were deployed to test capping effectiveness. In situ sediment-to-water PAH fluxes were measured using recently developed benthic flux chambers. Compared to the reference field, AC capping reduced fluxes by a factor of 2-10. Pore water PAH concentration profiles were measured in situ using anew passive sampler technique, and yielded a reduction factor of 2-3 compared to the reference field. The benthic macrofauna composition and biodiversity were affected by the AC amendments, AC + clay having a lower impact on the benthic taxa than AC-only or AC + sand. In addition, AC + clay gave the highest AC recoveries (60% vs 30% for AC-only and AC + sand) and strongest reductions in sediment-to-water PAH fluxes and porewater concentrations. Thus, application of an AC-clay mixture is recommended as the optimal choice of the currently tested thin-layer capping methods for PAHs, and more research on optimizing its implementation is needed.
Added entries (persons, corporate bodies, meetings, titles ...)
-
Krusa, Marie Elmquist
(author)
-
Breedveld, Gijs D.
(author)
-
Eek, Espen
(author)
-
Oen, Amy M. P.
(author)
-
Arp, Hans Peter H.
(author)
-
Raymond, CarolineStockholms universitet,Systemekologiska institutionen
(author)
-
Samuelsson, GöranStockholms universitet,Systemekologiska institutionen(Swepub:su)gosa6312
(author)
-
Hedman, Jenny E.Stockholms universitet,Systemekologiska institutionen
(author)
-
Stokland, Oystein
(author)
-
Gunnarsson, Jonas S.Stockholms universitet,Systemekologiska institutionen(Swepub:su)jgunn
(author)
-
Stockholms universitetInstitutionen för tillämpad miljövetenskap (ITM)
(creator_code:org_t)
Related titles
-
In:Environmental Science and Technology: American Chemical Society (ACS)45:14, s. 6110-61160013-936X1520-5851
Internet link
Find in a library
To the university's database
- By the author/editor
-
Cornelissen, Ger ...
-
Krusa, Marie Elm ...
-
Breedveld, Gijs ...
-
Eek, Espen
-
Oen, Amy M. P.
-
Arp, Hans Peter ...
-
show more...
-
Raymond, Carolin ...
-
Samuelsson, Göra ...
-
Hedman, Jenny E.
-
Stokland, Oystei ...
-
Gunnarsson, Jona ...
-
show less...
- Articles in the publication
-
Environmental Sc ...
- By the university
-
Stockholm University