Download Environmental Remediation. Removing Organic and Metal Ion by G. F. Vandegrift, D. T. Reed, I. R. Tasker PDF
By G. F. Vandegrift, D. T. Reed, I. R. Tasker
content material: Environmental recovery and separation technological know-how / D.T. Reed, I.R. Tasker, J.C. Cunnane, and G.F. Vandegrift --
removing of inorganic contaminants from groundwater : use of supported liquid membranes / R. Chiarizia, E.P. Horwitz, and K.M. Hodgson --
removing of plutonium from low-level method wastewaters by way of adsorption / G.S. Barney, K.J. Lueck, and J.W. eco-friendly --
Decontamination of groundwater by utilizing membrane-assisted solvent extraction / Joseph C. Hutter and G.F. Vandegrift --
Low-temperature portable expertise for on-site remediation / Michael G. Cosmos and Roger okay. Nielson --
Use of chelating brokers for remediation of heavy steel infected soil / Robert W. Peters and Linda Shem --
Surfactant flooding of diesel-fuel-contaminated soil / Robert W. Peters, Carlo D. Montemagno, Linda Shem, and Barbara-Ann G. Lewis --
Separation steps in polymer recycling procedures / Ferdinand Rodriguez, Leland M. Vane, John J. Schlueter, and Peter Clark --
removing of hydrophobic natural compounds from the aqueous section : non-stop non-foaming adsorptive bubble separation techniques / K.T. Valsaraj, X.Y. Lu, and L.J. Thibodeaux --
restoration of beneficial metals from business wastes / S. Natansohn, W.J. Rourke, and W.C. Lai --
elimination heavy metals from phosphoric acid and phosphate fluid fertilizers : natural and inorganic reagents / V.M. Norwood, III and L.R. Tate --
Kinetics of removing of heavy metals via a chelating ion-exchange resin : regeneration of the resin through NH₄OH resolution / K.C. Kwon, Helen Jermyn, and Howard Mayfield --
Ligand-modified micellar-enhanced ultrafiltration for steel ion separations : use of N-alkyltriamines / Donald L. Simmons, Annette L. Schovanec, John F. Scamehorn, Sherril D. Christian, and Richard W. Taylor --
Polymeric ligands for ionic and molecular separations / S.D. Alexandratos, D.W. Crick, D.R. Quillen, and C.E. Grady --
Solvent extraction tools for the analytical separation of environmental radionuclides / W. Jack McDowell and Betty L. McDowell --
proscribing job coefficients of nonelectrolytes in aqueous strategies / D.L. Bergmann and C.A. Eckert --
Polycyclic fragrant hydrocarbon analogues : one other method of environmental separation difficulties / A. Cary McGinnis, Srinivasan Devanathan, Gabor Patonay, and Sidney A. Crow --
hint point distribution in a variety of stages of aquatic platforms of the Savannah River plant / Shingara S. Sandhu.
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Extra resources for Environmental Remediation. Removing Organic and Metal Ion Pollutants
The next step was to find a suitable stripping agent capable of removing U(VI) from the SLM at the membrane-strip solution interface. The water soluble strong uranium(VI) complexing agent l-hydroxyethane-l,l-diphosphonic acid, HEDPA, was found to be very effective. 1 M solution of oxalic acid. Note here that the use of sodium carbonate, the traditional stripping agent for U(VI) in many solvent extraction studies, produced very short-lived liquid membranes, and, therefore, cannot be considered for the present application.
The decontaminated water can then be reintroduced to the environment (1 ). A groundwater contamination survey was recently completed at nine DOE sites in the United States (Morrisey, C. , et. , Oak Ridge National Laboratory, unpublished data). The ten most common VOC contaminants found are listed in Table I. Most of the contaminants are chlorinated hydrocarbons, and they were typically found in concentrations in the ppb range. Similar contaminants can be found at the Argonne site (2) as well as several industrial sites worldwide (3-8 ).
The HNO3 permeability coefficient with TLA as carrier is always much lower than for the other two amines, except for very low carrier concentrations. This may indicate that a local precipitation of the nitrate-TLA salt takes place in the pores of the membrane, reducing the speed of permeation. In the groundwater acidified at pH 2 with sulfuric acid, sulfate and bisulfate anions are present. By using an amine as the carrier in a SLM system, it is important to know what fraction of the total H is transported by the liquid membrane as HNO3, because we are interested in removing nitrates, not sulfates, from the groundwater.