Accelerator Production of Tritium Software Management Plan

Olsen, B.E.

doi:10.2172/763183

Cited by 1 publication

(2 citation statements)

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“…200–300 ngTE/kg ww) in fish and crayfish above the threshold established by the Norwegian Climate and Pollution Agency, the Norwegian Food Safety Authority has issued a dietary advisory for consumption of fish and shellfish from the area. In the management plan, sediment capping has been proposed to further reduce the risks associated with sediment contamination. The long-term objective is to remediate the sediment and transition the site to unrestricted use for public recreation and commercial fishing.…”

Section: Methodsmentioning

confidence: 99%

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Use of Life Cycle Assessments To Evaluate the Environmental Footprint of Contaminated Sediment Remediation

Sparrevik

Saloranta

Cornelissen

et al. 2011

Environ. Sci. Technol.

100

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Ecological and human risks often drive the selection of remedial alternatives for contaminated sediments. Traditional human and ecological risk assessment (HERA) includes assessing risk for benthic organisms and aquatic fauna associated with exposure to contaminated sediments before and after remediation as well as risk for human exposure but does not consider the environmental footprint associated with implementing remedial alternatives. Assessment of environmental effects over the whole life cycle (i.e., Life Cycle Assessment, LCA) could complement HERA and help in selecting the most appropriate sediment management alternative. Even though LCA has been developed and applied in multiple environmental management cases, applications to contaminated sediments and marine ecosystems are in general less frequent. This paper implements LCA methodology for the case of the polychlorinated dibenzo-p-dioxins and -furans (PCDD/F)-contaminated Grenland fjord in Norway. LCA was applied to investigate the environmental footprint of different active and passive thin-layer capping alternatives as compared to natural recovery. The results showed that capping was preferable to natural recovery when analysis is limited to effects related to the site contamination. Incorporation of impacts related to the use of resources and energy during the implementation of a thin layer cap increase the environmental footprint by over 1 order of magnitude, making capping inferior to the natural recovery alternative. Use of biomass-derived activated carbon, where carbon dioxide is sequestered during the production process, reduces the overall environmental impact to that of natural recovery. The results from this study show that LCA may be a valuable tool for assessing the environmental footprint of sediment remediation projects and for sustainable sediment management.

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Section: Methodsmentioning

confidence: 99%

“…Due to the size of the remediation area, only thin layer capping of the contaminated sediments has been considered as a feasible remediation method . The use of either passive material to reduce the PCDD/F flux or active carbon containing materials adsorbing PCDD/F have been suggested as viable options.…”

Section: Methodsmentioning

confidence: 99%