Browsing ELibrary by Author "Fein J.B."
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Browsing ELibrary by Author "Fein J.B."
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Fein J.B.; Daughney C.J.; Yee N.; Davis T.A. (1997)This study quantifies metal adsorption onto cell wall surfaces of Bacillus subtilis by applying equilibrium thermodynamics to the specific chemical reactions that occur at the water-bacteria interface. We use acid/base ...
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Daughney C.J.; Fein J.B.; Yee N. (1998)The cell walls of bacteria are known to adsorb a variety of metals, and thus they may control metal mobilities in many low-temperature aqueous systems. In order to quantify metal adsorption onto bacterial surfaces, recent ...
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Boyanov M.I.; Kelly S.D.; Kemner K.M.; Bunker B.A.; Fein J.B.; Fowle D.A. (2003)The local atomic environment of Cd bound to the cell wall of the gram-positive bacterium Bacillus subtilis was determined by X-ray absorption fine structure (XAFS) spectroscopy. Samples were prepared at six pH values in ...
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Boily J.F.; Fein J.B. (1998)An experimental investigation of the adsorption of Pb(II) and three benzenecarboxylate compounds (terephthalate, phthalate and pyromellitate) was conducted using the corundum surface. The experiments were carried out in ...
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Daughney C.J.; Fein J.B. (1997)The subsurface mobility of metals and polychlorinated phenols occurring together in contaminated groundwaters may be significantly affected by the extent of aqueous complexation between them. However, no previous experimental ...
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Fein J.B.; Brady P.V.; Jain J.C.; Dorn R.I.; Lee J.U. (1999)Mobilization of contaminant Pb and other cations from a weathered andesite was examined by conducting water-rock leaching experiments to measure release rates of the major and minor elements found in the bulk rock. Experiments ...
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Fowle D.A.; Fein J.B. (1999)In order to test the ability of a surface complexation approach to account for metal-bacteria interactions in near surface fluid-rock systems, we have conducted experiments that measure the extent of adsorption in mixed ...
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Borrok D.; Fein J.B. (2004)Bacteria and dissolved humic substances are capable of binding significant concentrations of metals in natural environments. Recent advances in understanding bacteria-metal and humic-metal complexation have provided a ...
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Yee N.; Fein J.B. (2002)In this study, we investigate the effects of bacteria on metal transport through mineral-filled columns, and how the effect varies with pH and mineralogy. We measured Bacillus subtilis and aqueous Cd transport through ...
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Gorman-Lewis D.; Fein J.B.; Jensen M.P. (2006)We used titration calorimetry to measure the bulk heats of proton and Cd adsorption onto a common Gram positive soil bacterium Bacillus subtilis at 25.0 °C. Using the 4-site non-electrostatic model of Fein et al. [Fein, ...
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Fowle D.A.; Fein J.B. (2000)This study tests the reversibility of metal-bacteria interactions by comparing estimated extents of desorption based on surface complexation modeling, to those we observed in the experimental adsorption/desorption systems. ...
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Fein J.B.; Yane L.; Jyoti A.; Handa T. (1995)The solubility of gibbsite was measured at 35 and 80°C, and the solubility of portlandite was measured at 25, 35, and 80°C, each as a function of pH and malonate concentration. The gibbsite solubility data can be satisfactorily ...
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Boily J.F.; Fein J.B. (1996)An experimental investigation of metal-organic co-adsorption was conducted using cadmium and citrate in the presence of corundum. The experiments were performed in the pH range 3.0 to 10.0 in a 0.01 M NaCl matrix with ...
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Fein J.B.; Boily J.F.; Guclu K.; Kaulbach E. (1999)Humic acid adsorption onto bacterial and mineral surfaces was measured as a function of pH and humic:surface ratio. The bacterial species used was the aerobic gram-positive species Bacillus subtilis, and Al mineral surface ...
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Yane L.; Fein J.B. (1998)The thermodynamic stabilities of the aqueous and surface Al-aniline and Al-2-chloroaniline complexes were investigated using solubility and adsorption experiments. Aqueous complexation was studied by measuring the solubility ...
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Gorman-Lewis D.; Fein J.B.; Soderholm L.; Jensen M.P.; Chiang M.H. (2005)The subsurface mobility of Np is difficult to predict in part due to uncertainties associated with its sorption behavior in geologic systems. In this study, we measured Np adsorption onto a common gram-positive soil ...
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Lee J.U.; Fein J.B. (2000)In order to examine the effects of Bacillus subtilis on rates and extents of gibbsite dissolution, we conducted batch-type dissolution experiments with viable, non-viable, and no bacteria. Dissolved Al and organic carbon ...
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Yee N.; Fein J.B.; Daughney C.J. (2000)In this study, we investigate the adsorption of Bacillus subtilis onto the surfaces of two minerals, corundum and quartz, as a function of time, pH, ionic strength, and bacteria:mineral mass ratio. Experimental results ...
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Wightman P.G.; Fein J.B.; Wesolowski D.J.; Phelps T.J.; Benezeth P.; Palmer D.A. (2001)This study reports the first potentiometric titrations of bacterial surfaces at elevated temperatures. We used a hydrogen electrode concentration cell to examine the protonation behavior of Bacillus subtilis (an aerobic, ...
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Fein J.B.; Martin A.M.; Wightman P.G. (2001)Aqueous metal cation adsorption onto bacterial surfaces can be successfully modeled by means of a surface complexation approach. However, relatively few stability constants for metal-bacterial surface complexes have been ...
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