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 --
elimination 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 approach wastewaters by means of adsorption / G.S. Barney, K.J. Lueck, and J.W. eco-friendly --
Decontamination of groundwater through the use of 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 techniques / 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 tactics / K.T. Valsaraj, X.Y. Lu, and L.J. Thibodeaux --
restoration of important 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 answer / 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 equipment for the analytical separation of environmental radionuclides / W. Jack McDowell and Betty L. McDowell --
restricting task coefficients of nonelectrolytes in aqueous ideas / 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 numerous stages of aquatic platforms of the Savannah River plant / Shingara S. Sandhu.

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Environmental Remediation. Removing Organic and Metal Ion Pollutants

Content material: Environmental recovery and separation technology / 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 ok. M. Hodgson -- removing of plutonium from low-level procedure wastewaters through adsorption / G.

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Alumina-C and MLM-300). ch003 2 4 1 2 3 8 Procedures. Procedures were developed for measuring plutonium distribution coefficients for batch equilibrium adsorption measurements and for measuring plutonium breakthrough concentrations for column flow-through adsorption experiments. Equilibrium Distribution Measurements. Portions of the wastewater sample were spiked with two levels of P u activities (approximately 1 and 10 |iCi/L). Total plutonium concentrations in the spiked solutions were about 40 to 400 times those of the original groundwater in terms of μg/L.

At initial concentrations of about 1 μα/L, Kd values for Duolite GT-73 and Amberlite IRC-718 were approximately 200 and 76 ml/g, respectively. Surprisingly, no dependence on pH is apparent at the lower initial plutonium concentrations. More cationic plutonium species should be present at lower pH values and would be more strongly adsorbed on cation exchange resin. This effect is only observed for Duolite GT-73 at the higher initial plutonium concentration, 10 μΟ/L. The absence of a pH effect at the lower concentration can be explained by the existence of a small concentration of a stable plutonium species in solution that does not interact with cation resins.

The limited success with NO3 is due to the fact that thesetestswere performed before the final choice of the best carrier for nitrates was made. 2 M Amberlite LA-II solution as liquid membrane in the second module would have led to much better results for the removal of nitrates. ch002 30 ENVIRONMENTAL REMEDIATION Table IV. 0 gaVmin, lumen side, strip. Liquid Membrane Stability To test the ability of our liquid membrane system to continuously operate at high efficiency, stability tests were performed.

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