Abstract: A vibrating platform for the deploying of passive sampling devices in sediments and other media to be sampled. The vibrating platform can greatly enhance the rate of mass transfer of analytes, such as polycyclic aromatic hydrocarbons and polychlorinated biphenyls, into passive sampler material by disrupting the formation of a depletion layer in proximity of the passive sampler material.

Abstract: A vibrating platform for the deploying of passive sampling devices in sediments and other media to be sampled. The vibrating platform can greatly enhance the rate of mass transfer of analytes, such as polycyclic aromatic hydrocarbons and polychlorinated biphenyls, into passive sampler material by disrupting the formation of a depletion layer in proximity of the passive sampler material.

Abstract: A system and methods for removal of persistent organic pollutants (POPs) from an environment, where the system includes an inert and organic biofilm substrata as biofilm media for dual use: 1) inoculation of microorganisms to degrade POPs and 2) accumulation of POPs on the substrata, effective in maintaining bioavailable concentrations for sustaining microbial activity. Microorganisms capable of degrading or transforming POPs are actively associated with the substrata as a biofilm. Application of this delivery vehicle will enhance the microbial degradation of POPs, while simultaneously adsorbing hydrophobic POPs from the environment making them bioavailable for the microorganisms located in the formed biofilms and additionally lowering the aqueous concentration of POPs that have detrimental effects towards fish and mammals as they bioaccumulate through the food chain.

Abstract: A system and methods for removal of persistent organic pollutants (POPs) from an environment, where the system includes an inert and organic biofilm substrata as biofilm media for dual use: 1) inoculation of microorganisms to degrade POPs and 2) accumulation of POPs on the substrata, effective in maintaining bioavailable concentrations for sustaining microbial activity. Microorganisms capable of degrading or transforming POPs are actively associated with the substrata as a biofilm. Application of this delivery vehicle will enhance the microbial degradation of POPs, while simultaneously adsorbing hydrophobic POPs from the environment making them bioavailable for the microorganisms located in the formed biofilms and additionally lowering the aqueous concentration of POPs that have detrimental effects towards fish and mammals as they bioaccumulate through the food chain.

Abstract: A system and methods for removal of persistent organic pollutants (POPs) from an environment, where the system includes an inert and organic biofilm substrata as biofilm media for dual use: 1) inoculation of microorganisms to degrade POPs and 2) accumulation of POPs on the substrata, effective in maintaining bioavailable concentrations for sustaining microbial activity. Microorganisms capable of degrading or transforming POPs are actively associated with the substrata as a biofilm. Application of this delivery vehicle will enhance the microbial degradation of POPs, while simultaneously adsorbing hydrophobic POPs from the environment making them bioavailable for the microorganisms located in the formed biofilms and additionally lowering the aqueous concentration of POPs that have detrimental effects towards fish and mammals as they bioaccumulate through the food chain.

Abstract: A system and methods for removal of persistent organic pollutants (POPs) from an environment, where the system includes an inert and organic biofilm substrata as biofilm media for dual use: 1) inoculation of microorganisms to degrade POPs and 2) accumulation of POPs on the substrata, effective in maintaining bioavailable concentrations for sustaining microbial activity. Microorganisms capable of degrading or transforming POPs are actively associated with the substrata as a biofilm. Application of this delivery vehicle will enhance the microbial degradation of POPs, while simultaneously adsorbing hydrophobic POPs from the environment making them bioavailable for the microorganisms located in the formed biofilms and additionally lowering the aqueous concentration of POPs that have detrimental effects towards fish and mammals as they bioaccumulate through the food chain.

Abstract: An agglomerate for use in economical bulk treatment of contaminated sediments with minimal environmental impact is formed from a sorbent, bentonite clay and sand. The agglomerate has sufficient density so as to sink through a water column into sediment below the water column and is still sufficiently light as to be capable of mixing with the sediment when subjected only to bioturbation. The agglomerate can be formed into pellets and applied to a water column over contaminated sediment by broadcast methods, so as to permit economical remediation of contaminated sediment with negligible environmental impact.

Abstract: An agglomerate for use in economical bulk treatment of contaminated sediments with minimal environmental impact is formed from a sorbent, bentonite clay and sand. The agglomerate has sufficient density so as to sink through a water column into sediment below the water column and is still sufficiently light as to be capable of mixing with the sediment when subjected only to bioturbation. The agglomerate can be formed into pellets and applied to a water column over contaminated sediment by broadcast methods, so as to permit economical remediation of contaminated sediment with negligible environmental impact.

Abstract: An agglomerate for use in economical bulk treatment of contaminated sediments with minimal environmental impact is formed from a sorbent, bentonite clay and sand. The agglomerate has sufficient density so as to sink through a water column into sediment below the water column and is still sufficiently light as to be capable of mixing with the sediment when subjected only to bioturbation. The agglomerate can be formed into pellets and applied to a water column over contaminated sediment by broadcast methods, so as to permit economical remediation of contaminated sediment with negligible environmental impact.

Abstract: To overcome obstacles faced by current remediation technologies for contaminated sediments, the present invention provides a new strategy based on in situ control of hydrophobic organic contaminants (HOC) bioavailability. The strategy employs the addition of activated carbon sorbents to sediments. These activated carbon materials sorb HOC contaminants strongly, reduce release of HOCs into water, and reduce HOC uptake by benthic biota, thereby reducing environmental exposure and human health risk to such contaminants. By in situ sorbing the contaminants, the inventive approach reduces environmental exposure and avoids massive material removal while controlling food web transfer of HOCs including polychlorinated biphenyls (PCBs).

Abstract: To overcome obstacles faced by current remediation technologies for contaminated sediments, the present invention provides a new strategy based on in situ control of hydrophobic organic contaminants (HOC) bioavailability. The strategy employs the addition to sediments of coal- and wood-derived carbon sorbents, so-called black carbon particles such as activated carbon, char, charcoal, coal, and coke. These black carbon materials sorb HOC contaminants strongly and reduce release of HOCs into water, and reduce HOC uptake by benthic biota, thereby reducing environmental exposure and human health risk to such contaminants. By in situ sorbing the contaminants, the inventive approach reduces environmental exposure and avoids massive material removal while controlling food web transfer of HOCs including polychlorinated biphenyls (PCBs).