sediment sampling Articles
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High‐throughput screening of PCDD/Fs and PCBc in sediment: Development and application of a novel method for high‐throughput determination of PCDD/Fs and PCBs in sediments
A selective pressurized liquid extraction (SPLE) technique was developed for the simultaneous extraction of polychlorinated dibenzo‐p‐dioxins/dibenzofurans (PCDD/Fs) and dioxin‐like polychlorinated biphenyls (dl‐PCBs) from contaminated sediments. The final method incorporated cleanup adsorbents (Florisil, alumina, and silica) into the extraction cell in a 1:1 matrix to individual adsorbent ...
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Nitrogen removal in maturation waste stabilisation ponds via biological uptake and sedimentation of dead biomass
In this work a set of experiments was undertaken in a pilot-scale WSP system to determine the importance of organic nitrogen sedimentation on ammonium and total nitrogen removals in maturation ponds and its seasonal variation under British weather conditions, from September 2004 to May 2007. The nitrogen content in collected sediment samples varied from 4.17% to 6.78% (dry weight) and calculated ...
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Removal of persistent organic pollutants from landfill leachates treated in three constructed wetland systems
The objective of the study was assessment of occurrence and removal of two groups of persistent organic pollutants: polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) in landfill leachate (LL) treated in three constructed wetland systems (CWs) of different construction and flow regime. Two subsurface flow systems (SSF) were analyzed: one with horizontal flow and the ...
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