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Simulation Of Arsenic Partitioning In Tributaries To Drinking Water Reservoirs, Eid A. Alkhatib
Simulation Of Arsenic Partitioning In Tributaries To Drinking Water Reservoirs, Eid A. Alkhatib
Chemistry & Physics Faculty Publications
Arsenic released by bottom sediments was determined by experiments in which the sediments were artificially re-suspended using a particle entrapment simulator (PES) to simulate river conditions. Sediment cores were collected from various tributaries to drinking water reservoirs in Connecticut spiked with arsenic, and run in the PES at simulated bed-flow shear stresses from 0.0 to 0.6 N/m2. Under equilibrium conditions, the dissolved fraction of arsenic was found to range from 8.3 to 22.1 ug/1, which in most cases exceeded EPA Maximum Contaminant Level (MCL) of 10 ug/1. Experimental results from these simulations have shown that bed-flow shear stress causes an …
Parameters Affecting Partitioning Of 6 Pcb Congeners In Natural Sediments, Eid A. Alkhatib, Carl Weigand
Parameters Affecting Partitioning Of 6 Pcb Congeners In Natural Sediments, Eid A. Alkhatib, Carl Weigand
Chemistry & Physics Faculty Publications
Polychlorinated biphenyls (PCBs) released by bottom sediments were determined by experiments in which the sediments were artificially resuspended using sediment contaminated with PCBs in a particle entrainment simulator (PES). Sediment cores, spiked with PCBs, were collected from the Housatonic River in Connecticut and run in the PES at simulated shear stresses from 0 to 0.6 N m(-2). Experimental results from these simulations have shown that mean concentration of PCBs in the solid phase for sites with high volatile organic carbon (VOC) were significantly greater than samples with low VOC; the reverse was true for the water phase. In addition, on …