Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 9 pps

... 5.46 E-4 1. 79 E-3 856 1.15 E-4 2.28 E-3 868Sr 2. 39 E-4 1.28 E-5 74 .9 2.77 E-4 1.03 E-5 98 .1Zn 2.37 E-5 4.56 E-5 155 2.80 E-5 6.68 E-5 143Ni 3.17 E-6 1.42 E-5 12.8 1.17 E-6 8. 09 E-6 13.7a Exchangeable ... G.Y., and Liu, J.C., Solubility of heavy metals in a contaminatedsoil: Effects of redox potential and pH, Water Air Soil Pollut., 90 , 543, 199 6.11. Davranche, M. and Bollinger, J., Heavy metals ... Organo-metallic interactions in soils: 8, An evalu-ation of methods for the determination of stability constants of metal-fulvic acidcomplexes, Soil Sci., 1 09, 333, 197 0.30. Dzombak, D.A. and...

Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 2 pps

... for In situ Treatment of Metal Contaminated Soils, EPA-542-R -9 7 –004, USEPA, Washington, D.C., 199 7.3. Forstner, U., Land contamination by metals: Global scope and magnitude of problem, in Metal ... Qual., 28, 93 9, 199 9. 29. Sparks, D.L., Kinetics of metal sorption reactions, in Metal Speciation and Contam-ination of Soil, Allen, H.E. et al., Eds., Lewis Publishers, Boca Raton, FL, 199 5, p. ... colloids in asandy soil: In uence of Ca2+ and trace metals, Environ. Sci. Technol., 31, 3 497 , 199 7.16. Grolimund, D. et al., Colloid-facilitated transport of strongly sorbing contaminants in natural...

Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 8 ppsx

... this point, the remainder of the chapter focuses on the combination of several analytical techniques in determining and quantifying Zn speciation in a soilcontaminated as a result of smelting operations. ... a variety of techniques, includingXRD, XAFS, and micro-focused XAFS to demonstrate that upon weathering of Zn-mineral phases in soils, Zn was taken up by the formation of Zn-containingphyllosilicates ... polymorphs of Hg-bearing phases (cinnabar and metacinnabar). 51 Severalother studies have pointed out similar shortcomings of these techniques in speciatingmetal phases in soils and sediments....

Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 10 ppsx

... Al and other trace metals) and organic and inorganic pollutants in soils (Qualls and Haines, 199 1; McCarthy and Zachara, 198 9; Kaiser and Zech, 199 8; Berggrenet al., 199 0; Maxin and Kögel-Knabner, ... 0 .97 6 0 .99 5 0 .99 1 0 .94 2 0 .93 0 0 .95 8 Zn k 3.86 1.84 1227 89. 71/n 0 .98 1.05 0.42 0.72R 2 0 .95 0 0 .97 8 0 .98 4 0 .99 7 Cd k 22.2 9. 54 1384 2421/n 0 .93 1.01 0.46 0.65R 2 0 .99 5 0 .99 3 ... composts,leachate of waste disposal sites, and sewage sludge-amended soils in other studies(Han and Thompson, 199 9; Homann and Grigal, 199 2; Raber and Kögel-Knabner, 199 7).The fractions of DOM derived...

Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 4 docx

... unraveling the afﬁnity of mineral surfaces forboth inorganic and organic species.The main effects of proton adsorption-desorption on the adsorption of metals in general and heavy metals in particular ... organization of Na- and K-montmorillonite suspen-sions in response to osmotic and thermal stresses, Clays Clay Miner., 46, 636, 199 8.10. Derrindinger, L. and Sposito, G., Flocculation kinetics and cluster ... resulting value for is 2.4 and thus = −7 .9. In the case of the hydroxo group, there are two Si-O bonds, and one H donating and one H accepting bond. Therefore, = 1 and = − 19. 8. The same proce-dure...

Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 5 pptx

... D., and Apitz, S.E., Ab initio calculation of aqueous aluminum and aluminum-carboxylate NMR chemical shifts, J. Phys. Chem. A, 103, 90 3, 199 9.68. Schulten, H.R. and Schnitzer, M., Three-dimensional ... constraints of marine deposit feeders: Gut retention time and dissolvedamino acids, Mar. Ecol Prog. Ser., 176, 1 39, 199 9.88. Chen, Z. et al., High concentrations of complexed metals in the guts of ... surfaces and calcula-tions on minerals and molecular clusters, I. STO-3G and 6–31G* results, Phys. Chem.Miner., 16, 29, 198 8.53. Kubicki, J.D., Interpretation of vibrational spectra using molecular...

Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 7 pptx

... crystalline and of mixed oxidation state (Hem and Lind, 198 3; Murray et al., 198 5; Adams and Ghiorse, 198 8; Wehrli et al., 199 2; Mandernack et al., 199 5;Mandernack et al., 199 5). Investigations using ... that have well-established metal binding properties(Lion et al., 198 8; Pradhan and Levine, 199 2; Herman et al., 199 5; Nelson et al., 199 5). However, depending on the trace metal of interest, adsorption ... al., 198 8; Tebo, 199 1;Wehrli et al., 199 2). Reported rates of biological catalysis of Mn oxidation varyfrom 65 nM/h in marine environments (Tebo, 199 1) to 350 nM/h in freshwater(Tipping, 198 4)....

Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 11 ppt

... spectra. 93 ,94 ,96 As an example of thin-foil analysis in the SEM, samples of the mineral standardkaolinite (<2 µm fraction, KGa-2, Source Clay Minerals Repository) were dispersedon TEM grids and ... 56, 1074, 199 2. 2. Golden, D.C. and Dixon, J.B., Silicate and phosphate in uence on kaolin-iron oxideinteractions, Soil Sci. Soc. Am. J., 49, 1568, 198 5.3. Anderson, P.R. and Benjamin, M.M., ... particles orother low-molecular-weight compounds. Laskin and Cowin 96 also note that utiliza-tion of the SE signal may be necessary when performing automated analysis of low-atomic-number materials,...

Immobilization of heavy metals in sediment dredged from a seaport by iron bearing materials

... easily by using one of the latest technologies – Biofast – a kind of machine for filtering liquid wastes. Biofast are outstanding because of its effectiveness and efficiency. Biofast operates ... investment in waste-treatment-systems. Research and Development projects should also be invested in to find out the best technologies for reducing abatement cost and increasing the effect and efficiency ... research and testing of biological products. 1.1.2. Definition according to the Ministry of Public Health of Vietnam  Medical wastes are material in form of solid, liquid or gases which are eliminated...

Heavy Metals Release in Soils - Chapter 4 ppsx

... Reactivity and Transport of Heavy Metals in Soils. CRC Press, Boca Raton, FL.Selim, H.M., M.C. Amacher, and I.K. Iskandar. 199 0. Modeling the transport of heavy metals in soils. CRREL-Monograph 9 0-2 , ... amended contaminated soils (Chen et al., 199 7; Eighmy et al., 199 7; Laperche et al., 199 7; Ma et al., 199 3, 199 5; Ma and Rao, 199 7; Zhang and Ryan, 199 9).Research of phosphate sources with higher solubility ... 35(2):23 3-2 42.Vangronsveld, J. and S.D. Cunningham. 199 8. Introduction to the concepts. In J. Vangronsveld and S.D. Cunningham, Eds., Metal-Contaminated Soils: In Situ Inactivation and Phy-torestoration. Springer-Verlag,...

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