During combustion, the mercury (Hg) in coal is volatilized and converted to elemental mercury (Hg0) vapor in the high temperature regions of coal-fired boilers. As the flue gas is cooled, a series of complex reactions begin to convert Hg0 to ionic mercury (Hg2+) compounds and/or Hg compounds (Hgp) that are in a solid-phase at flue gas cleaning ...
On December 22, 2008 a dike containing coal fly ash from the Tennessee Valley Authority Kingston Fossil Plant failed and resulted in the largest coal ash spill in U.S. history. This study was designed to determine sediment metal concentrations at multiple site locations and to determine if site‐specific bioaccumulation of metals existed in ...
John Wiley & Sons, Ltd.As early as August 1, 2008, the national list of hazardous waste had been the recovery of the energy saving lamps included. However, for waste energy saving lamps may harm caused to the environment and human health, the public did not know. Until now, energy saving lamp recycling policy is still blank. How future waste disposal? Than ordinary ...
Suzhou Pioneer Material Handling Equipment & Technology Co., LtdThe polychaete worm Nereis diversicolor engineers its environment by creating oxygenated burrows in anoxic intertidal sediments. We carried out a laboratory microcosm experiment to test the impact of polychaete burrowing and feeding activity on the lability and methylation of mercury in sediments from the Bay of Fundy, Canada. The concentration ...
John Wiley & Sons, Ltd.The French waterway system consists of large navigable rivers and canals connecting many regions. Maintaining a safe navigation channel, in the Nord–Pas De Calais (NPDC) region in France, requires the regular removal of accumulated sediments which are often contaminated with zinc, lead, cadmium, and mercury. New legislations, such as the European ...
Inderscience PublishersMercury (Hg) is a widespread environmental contaminant known for the neurotoxicity of the methylated forms, especially monomethyl mercury, which bioaccumulates and biomagnifies in aquatic food webs. Mercury bioaccumulation and biomagnification rates are known to vary among species utilizing different food webs (benthic versus limnetic) within ...
John Wiley & Sons, Ltd.Concentrations of copper (Cu), zinc (Zn), cadmium (Cd), lead (Pb), mercury (Hg) and selenium (Se) were determined in blood and feathers of spectacled (Procellaria conspicillata) and white‐chinned (P. aequinoctialis) petrels, species that are phylogenetically related, but with distinct ecological niches. In winter, they feed on similar foods, ...
John Wiley & Sons, Ltd.We compared benthic wetland invertebrate matrix separation techniques (handpicking vs. saltwater flotation) to test for effects on invertebrate mercury concentrations. Neither total mercury nor methylmercury concentrations differed significantly between techniques across eight taxa. Matrix separation by the flotation technique took significantly ...
John Wiley & Sons, Ltd.Granular Activated carbon is effective at physically adsorbing trace components from gas streams due to its high population of micropores; however, the capacity is low. By impregnating the granular activated carbon with a compound that will chemically react with the mercury, capacity can be enhanced. It is imperative that not only must the mercury ...
