Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 8 ppsx
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 soil contaminated as a result of smelting operations. ... a variety of techniques, including XRD, XAFS, and micro-focused XAFS to demonstrate that upon weathering of Zn-mineral phases in soils, Zn was taken up by the form...
Ngày tải lên: 11/08/2014, 10:22
Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 10 ppsx
... Keefer et al. (1 984 ) pointed out that the HiB fraction mainly consisted of the N-containing group, including most amino acids, amino sugar, low-molecular-weight amines, and pyri- dine, while the ... decreasing metal sorption in soils. In most agricultural soils with pH ranging from 5 to 8, such as soils containing larger amounts of 2:1 minerals, DOM, is mainly present in t...
Ngày tải lên: 11/08/2014, 10:22
Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 2 pps
... for In situ Treatment of Metal Contaminated Soils, EPA-542-R-97–004, USEPA, Washington, D.C., 1997. 3. Forstner, U., Land contamination by metals: Global scope and magnitude of problem, in Metal ... concentrations in the eluent were determined by placing 200 ml of the sample into a Bio-Tek multichannel (optical densitometer with fiber-optics technol- ogy; Bio-Tek Instruments, I...
Ngày tải lên: 11/08/2014, 10:22
Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 4 docx
... unraveling the affinity of mineral surfaces for both inorganic and organic species. The main effects of proton adsorption-desorption on the adsorption of metals in general and heavy metals in particular ... of basal surfaces populated with Si-O 2 and Al 2 -OH groups and the reactivity of basal surfaces populated with Al-OH −1/2 , Si-O –1 , SiAl-O −1/2 and other...
Ngày tải lên: 11/08/2014, 10:22
Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 5 pptx
... 1149 1154 1136 1142 87 5 87 0 1149 1151 1 086 1 088 1039 1061 653 654 10 38 1022 1035 10 18 781 782 85 4 86 2 85 3 84 8 661 654 772 769 659 653 661 663 592 589 Source: Trout, C.C. and Kubicki, J.D., UV ... 1553 1 488 1422 1495 1457 1495 1433 1 489 1474 1499 1 482 1 584 1 487 1 581 1466 1446 1 381 1451 1439 1417 1353 1362 1344 1463 14 48 1 487 1449 1540 14 48 1400 1347 1412 131...
Ngày tải lên: 11/08/2014, 10:22
Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 7 pptx
... crystalline and of mixed oxidation state (Hem and Lind, 1 983 ; Murray et al., 1 985 ; Adams and Ghiorse, 1 988 ; Wehrli et al., 1992; Mandernack et al., 1995; Mandernack et al., 1995). Investigations using ... reactions and organic interactions in soils, in Manganese in soils and plants, Graham, R.D., Hannam, R.J., and Uren, N.C., Eds., Kluwer, Dor- drecht, 1 988 , p....
Ngày tải lên: 11/08/2014, 10:22
Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 9 pps
... 5 .82 E-2 — — 6.39 E-2 — — Mg 1 .83 E-2 — — 2.47 E-2 — — Mn 5.46 E-4 1.79 E-3 85 6 1.15 E-4 2. 28 E-3 86 8 Sr 2.39 E-4 1. 28 E-5 74.9 2.77 E-4 1.03 E-5 98. 1 Zn 2.37 E-5 4.56 E-5 155 2 .80 E-5 6. 68 E-5 ... concentrations of Ca and Mg from LaJara soil. FIGURE 9.2 Soluble concentrations of Mn and Sr from LaJara soil. 0.0E+00 2.0E-04 4.0E-04 6.0E-04 8. 0E-04 1.0E-03 1.2E-03 1.4E-0...
Ngày tải lên: 11/08/2014, 10:22
Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 11 ppt
... useful for understanding trace metal behavior in soils. Fl-FFF has also been coupled to ICP-MS for the determination of element size distributions of 28 elements, including C, in natural waters. 91 ... generated within this interaction volume (Figure 11.7(a)). An under- standing of the size and shape of the interaction volume for a given specimen as in uenced by the beam par...
Ngày tải lên: 11/08/2014, 10:22
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 ... manufacturing incinerators but either they could not apply in reality or incinerators were inefficient. The abatement cost of treating one kilogram of solid medical waste is 8, 00...
Ngày tải lên: 23/09/2012, 15:38
Heavy Metals Release in Soils - Chapter 4 ppsx
... transport in contaminated mine tailings following liming. J. Environ. Qual. 26:43 3-4 39. Jurinak, J.J. and J. Santillian-Medrano. 1974. The chemistry and transport of lead and cad- mium in soils. ... used to investigate the solubility and mobility of metals from mine- and smelter-contaminated soils include measuring the distribution of metal contam- inants with pro...
Ngày tải lên: 12/08/2014, 02:20
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