Filters: Tags: Chemical precipitation (X)71 results (73ms)
Environmental fate of roxarsone in poultry litter. Part II. Mobility of arsenic in soils amended with poultry litter
Poultry litter often contains arsenic as a result of organo-arsenical feed additives. When the poultry litter is applied to agricultural fields, the arsenic is released to the environment and may result in increased arsenic in surface and groundwater and increased uptake by plants. The release of arsenic from poultry litter, litter-amended soils, and soils without litter amendment was examined by extraction with water and strong acids (HCI and HNO3). The extracts were analyzed for As, C, P, Cu, Zn, and Fe. Copper, zinc, and iron are also poultry feed additives. Soils with a known history of litter application and controlled application rate of arsenic-containing poultry litter were obtained from the University of...
Species and geochemical characteristics of heavy metals in the sediments of Kangjiaxi River in the Shuikoushan Mine Area, China
Streamwater chemistry and nutrient budgets for forested watersheds in New England: variability and management implications
Phosphorus-binding forms in the sediment of an oligotrophic and an eutrophic hardwater lake of the Baltic lake district (Germany)
Nitrification Performance of Marine Nitrifiers Immobilized in Polyester- and Macro-Porous Cellulose Carriers
Permeable treatment walls for in-situ groundwater remediation -- how to avoid precipitation and bio-clogging
Modeling alternative paths of chemical evolution of Na-HCO3-type groundwater near Oak Ridge, Tennessee, USA
Fluid flow and reactive transport around potential nuclear waste emplacement tunnels at Yucca Mountain, Nevada
Formation of Freshwater Fe-Mn Coatings on Gravel and the Behavior of Co60, Sr90, and Cs137 in a Small Watershed
Effect of carbonates and gypsum precipitation in the root zone on the chemical composition of groundwater
Correlation between iron sulfide precipitation and hypolimnetic phosphorus accumulation during one summer in a softwater lake
Natural Clean-up of a Stream Contaminated by Mine and Mill Wastes: A Reaction Analogous to Liming in Water Treatment
Geochemical Correction of Carbon-14 in Dissolved Inorganic Carbon used for Groundwater Age Dating in the Glacial Aquifer System, Conterminous United States
Data provided here describe geochemical correction of carbon-14 in dissolved inorganic carbon (DIC) for groundwater age dating. Datasets include major ion chemistry of groundwater samples, model parameter inputs, and final corrected carbon-14 in DIC. Geochemical correction was completed in two phases: determination of reactive phase mole transfers through an inverse geochemical model (PHREEQC; Parkhurst and Appleo, 1992) and tracking of isotopic mass transfer among phases (NetpathXL; Parkhusrtand Charlton, 2008). Parkhurst, D.L., and Appelo, C.A.J., 2013, Description of input and examples for PHREEQC version 3—A computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical...