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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 strategy wastewaters by means 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 moveable 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 --
elimination of hydrophobic natural compounds from the aqueous section : non-stop non-foaming adsorptive bubble separation procedures / K.T. Valsaraj, X.Y. Lu, and L.J. Thibodeaux --
restoration of worthwhile metals from commercial wastes / S. Natansohn, W.J. Rourke, and W.C. Lai --
removal 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 by way of 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 recommendations / 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 aspect distribution in numerous levels of aquatic structures of the Savannah River plant / Shingara S. Sandhu.

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Fluctuations in the curve are caused by stops and starts in the feed flow. 6k Volume Eluted, mL Figure 8. Plutonium Elution Curve for Small Column Adsorption Capacity Test The required size of the process bone char columns for PFP wastewater can be estimated from adsorption rate measurements. Values of C/Co are plotted in Figure 9 for the 26 mL bone char columns as a function of residence time. 2 χ 10" μΟ/L is the drinking water standard. In Figure 9 this C/Co value corresponds to a column residencetimeof about two minutes.

1 M NaOH for the second one. Other experimental details are reported in (6). The result of a typical test are sumarized in Table IV. The results show that the two modules were very effective in reducing die U(VI) and Tc(VII) concentrations by about three and two orders of magnitude, respectively. 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.

However, much of the wastewater will have a pH less than 6. The small particle size of these particular adsorbents would also limit wastewater flow through large wastewater treatment columns. Plutonium distribution coefficients for adsorption on bone char are quite high, but reach a maximum at about pH 8 (Figure 2). The major component of bone char, Ca3(P03)2, buffered the wastewater solution so that it was not possible to achieve a pH of less than 7. Interestingly, the pH of maximum adsorption is the same as the minimum solubility of beta-tricalcium phosphate (13), the major component of bone char.

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