Equilibrium and kinetic modeling of contaminant immobilization by activated carbon amended to sediments in the field

Rakowska, M.I.; Kupryianchyk, D.; Koelmans, Albert A.; Grotenhuis, J.T.C.; Rijnaarts, H.H.M.

doi:10.1016/j.watres.2014.07.046

Cited by 15 publications

(13 citation statements)

References 39 publications

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“…The following formula was used: with K p-total being the PCB partitioning to the total mixture of sediment including OM and PE, and f OM and f PE being the fraction OM and polyethylene in that sediment mixture, respectively. This follows the same procedure as Rakowska et al, 55 , 56 who derived activated carbon partitioning coefficients in mixtures of activated or black carbon and sediment. Log K PE showed a linear increase with log K OW ( SI Figure S7 , LM, p -value = 2.17 × 10 –12 ).…”

Section: Results and Discussionmentioning

confidence: 99%

The Effect of Microplastic on the Uptake of Chemicals by the Lugworm Arenicola marina (L.) under Environmentally Relevant Exposure Conditions

Besseling

Foekema

Heuvel-Greve

et al. 2017

Environ. Sci. Technol.

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It has been hypothesized that ingestion of microplastic increases exposure of aquatic organisms to hydrophobic contaminants. To date, most laboratory studies investigated chemical transfer from ingested microplastic without taking other exposure pathways into account. Therefore, we studied the effect of polyethylene (PE) microplastic in sediment on PCB uptake by Arenicola marina as a model species, quantifying uptake fluxes from all natural exposure pathways. PCB concentrations in sediment, biota lipids (Clip) and porewater measured with passive samplers were used to derive lipid-normalized bioaccumulation metrics Clip, Biota sediment accumulation factor (BSAF), Bioaccumulation factor (BAF) and the Biota plastic accumulation factor (BPAF). Small effects of PE addition were detected suggesting slightly increased or decreased bioaccumulation. However, the differences decreased in magnitude dependent on the metric used to assess bioaccumulation, in the order: Clip > BSAF > BPAF > BAF, and were nonsignificant for BAF. The fact that BAF, that is, normalization of Clip on porewater concentration, largely removed all effects of PE, shows that PE did not act as a measurable vector of PCBs. Biodynamic model analysis confirmed that PE ingestion contributed marginally to bioaccumulation. This work confirmed model-based predictions on the limited relevance of microplastic for bioaccumulation under environmentally realistic conditions, and illustrated the importance of assessing exposure through all media in microplastic bioaccumulation studies.

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Section: Results and Discussionmentioning

confidence: 99%

The Effect of Microplastic on the Uptake of Chemicals by the Lugworm Arenicola marina (L.) under Environmentally Relevant Exposure Conditions

Besseling

Foekema

Heuvel-Greve

et al. 2017

Environ. Sci. Technol.

Self Cite

140

100

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“…Traditionally, ex situ remedial technologies have involved dredging of contaminated sediment, followed by treatment of dredged sediment and/or removed water, disposal of dredged sediment or treatment of residuals in a landfill, confined disposal facility (CDF), or in an other placement (USEPA 2005;National Research Council 2007). Therefore, in the context of AC based remediation approaches, ex situ techniques include treatment of dredged sediment with AC, after which AC can be removed (if needed), yielding cleaner sediment that may be reused (Rakowska et al 2014a). From a technical perspective, it might be desirable to leave the AC in place because it can continue to strongly bind possible slowly desorbing contaminants.…”

Section: Activated Carbon Applicationmentioning

confidence: 99%

“…It has been shown that applying up to 4% powdered AC results in almost complete i.e., 99%, removal of different classes of HOCs (i.e., PAH, PCB, and DDT) from the sediment porewater (Zimmerman et al 2004;Werner et al 2005;Tomaszewski et al 2007;Brändli et al 2008;Sun and Ghosh 2008;Cho et al 2009;Beckingham and Ghosh 2011;Kupryianchyk et al 2011;Kupryianchyk et al 2013a;Kupryianchyk et al 2013 b;Rakowska et al 2013), closely followed by sediment stripping with granular AC and sediment treatment with 4% granular AC (reduction by 97% and 90%, respectively) (Kupryianchyk al. 2013a;Kupryianchyk et al 2013 b;Rakowska et al 2014a) (Supplemental Data, Table S1). Application of AC as a thin (i.e., less than 5 cm) capping layer material as well as mixed into the cap material itself (e.g., clay and sand), has been shown to have a significant effect on reduction of porewater concentration Lin et al 2013;Samuelsson 2013) and sediment-to-water fluxes of HOCs Kupryianchyk et al 2013a;Lin et al 2013).…”

Section: Activated Carbon Applicationmentioning

confidence: 99%

“…It has been shown that at equal concentration, AC, with a smaller particle size and therefore higher surface area, facilitates HOC sequestration and results in lower bioaccumulation in aquatic organisms (McLeod et al 2007;Sun and Ghosh 2007;Kupryianchyk et al 2013b). Granular activated C (GAC) will require months or even years to reach maximum treatment efficiencies (Kupryianchyk et al 2013b;Rakowska et al 2014a). To improve the short-term effectiveness of in situ GAC treatments, a higher GAC dose can be applied (Hale et al 2009;.…”

Section: Activated Carbon Applicationmentioning

confidence: 99%

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Positioning activated carbon amendment technologies in a novel framework for sediment management

Kupryianchyk¹,

Rakowska²,

Reible³

et al. 2015

Integr Envir Assess & Manag

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Contaminated sediments can pose serious threats to human health and the environment by acting as a source of toxic chemicals. The amendment of contaminated sediments with strong sorbents like activated C (AC) is a rapidly developing strategy to manage contaminated sediments. To date, a great deal of attention has been paid to the technical and ecological features and implications of sediment remediation with AC, although science in this field still is rapidly evolving. This article aims to provide an update on the recent literature on these features, and provides a comparison of sediment remediation with AC to other sediment management options, emphasizing their full-scale application. First, a qualitative overview of advantages of current alternatives to remediate contaminated sediments is presented. Subsequently, AC treatment technology is critically reviewed, including current understanding of the effectiveness and ecological safety for the use of AC in natural systems. Finally, this information is used to provide a novel framework for supporting decisions concerning sediment remediation and beneficial reuse.

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“…More than 99 and 70 % of Pb and Cd, respectively, became nonreadily extractable fractions by the addition of birnessite and hydroxyapatite. There are also examples of field application or laboratory study with activated carbon that showed significant reductions in bioavailability in marine sediments contaminated with PAH and heavy metals (Cho et al 2007;Rakowska et al 2014). Notably, stabilization only improves the immobility of heavy metals on sediment and their total contents in sediment do not lower.…”

Section: Introductionmentioning

confidence: 99%

Investigation of heavy metal (Cu, Pb, Cd, and Cr) stabilization in river sediment by nano-zero-valent iron/activated carbon composite

Chen

Zhang

et al. 2015

Environ Sci Pollut Res

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Nano-zero-valent iron/activated carbon (nZVI/AC) composite was evaluated for its effectiveness in the stabilization of Cu, Pb, Cd, and Cr in dredged river sediment. Synthetic precipitation leaching procedure (SPLP) and toxicity characteristic leaching procedure (TCLP) were adopted to compare the effects of nZVI/AC dosage, particle size, time duration, and temperature on heavy metal leachability. The results show that leachability dropped considerably with the addition of nZVI/AC and powdered particles in the size of 0.075-0.18 mm was more effective in stabilization than granular ones. Stabilization effect was stable in long-term and robust against changes in temperature. Tessier sequential extraction revealed that heavy metals were associated with solid particle, inorganic or organic matters in sediment. The addition of nZVI/AC was able to convert relatively weakly bound heavy metals into more strongly bound species and thus reduce the bioavailability and toxicity. Also, the standard potential of heavy metals may decide the mechanism of stabilization process.

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Equilibrium and kinetic modeling of contaminant immobilization by activated carbon amended to sediments in the field

Cited by 15 publications

References 39 publications

The Effect of Microplastic on the Uptake of Chemicals by the Lugworm Arenicola marina (L.) under Environmentally Relevant Exposure Conditions

The Effect of Microplastic on the Uptake of Chemicals by the Lugworm Arenicola marina (L.) under Environmentally Relevant Exposure Conditions

Positioning activated carbon amendment technologies in a novel framework for sediment management

Investigation of heavy metal (Cu, Pb, Cd, and Cr) stabilization in river sediment by nano-zero-valent iron/activated carbon composite

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