https://www.mdu.se/

mdu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Characterization of dredged sediments: a first guide to define potentially valuable compounds - the case of Malmfjärden Bay, Sweden
Linnéuniversitetet, Institutionen för biologi och miljö (BOM).ORCID iD: 0000-0002-0367-5332
Linnéuniversitetet, Institutionen för biologi och miljö (BOM), Sweden.ORCID iD: 0000-0001-8906-9271
Beihua University, China.
Linnéuniversitetet, Institutionen för biologi och miljö (BOM).ORCID iD: 0000-0002-1903-760X
2019 (English)In: Advances in Geosciences, ISSN 1680-7340, E-ISSN 1680-7359, Vol. 49, p. 137-147Article in journal (Refereed) Published
Abstract [en]

Millions of tons of bottom sediments are dredged annually all over the world. Ports and bays need to extract the sediments to guarantee the navigation levels or remediate the aquatic ecosystem. The removed material is commonly disposed of in open oceans or landfills. These disposal methods are not in line with circular-economy goals and additionally are unsuitable due to their legal and environmental compatibility. Recovery of valuables represents a way to eliminate dumping and contributes towards the sustainable extraction of secondary raw materials. Nevertheless, the recovery varies on a case-by-case basis and depends on the sediment components. Therefore, the first step is to analyse and identify the sediment composition and properties. Malmfjärden is a shallow semi-enclosed bay located in Kalmar, Sweden. Dredging of sediments is required to recuperate the water level. This study focuses on characterizing the sediments, pore water and surface water from the bay to uncover possible sediment recovery paths and define the baseline of contamination in the water body. The results showed that the bay had high amounts of nitrogen (170–450 µg L−1 ), leading to eutrophication problems. The sediments mainly comprised small size particle material (silt, clay and sand proportions of 62 %–79 %, 14 %–20 %, 7 %–17 %, respectively) and had a medium–high level of nitrogen (7400–11 000 mg kg−1 ). Additionally, the sediments had little presence of organic pollutants and low–medium concentration of metals or metalloids. The characterization of the sediments displays a potential use in less sensitive lands such as in industrial and commercial areas where the sediments can be employed as construction material or as plant-growing substrate (for ornamental gardens or vegetation beside roads).

Place, publisher, year, edition, pages
Copernicus Publications , 2019. Vol. 49, p. 137-147
Keywords [en]
sediments, metals, nutrients, organic compounds, beneficial uses
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:mdh:diva-57919DOI: 10.5194/adgeo-49-137-2019Scopus ID: 2-s2.0-85072645357OAI: oai:DiVA.org:mdh-57919DiVA, id: diva2:1651749
Available from: 2022-04-13 Created: 2022-04-13 Last updated: 2022-04-13Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Ferrans, LauraJani, YahyaHogland, William

Search in DiVA

By author/editor
Ferrans, LauraJani, YahyaHogland, William
In the same journal
Advances in Geosciences
Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 67 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf