Environmental Soil Chemistry - Chapter 6 docx

... exchangebKerr KK={K -soil} [Na+]cKK={K -soil} 2[Ca2+]{Na -soil} [K+] {Ca -soil} [K+]2VanselowdKV={K -soil} [Na+], KV={K -soil} 2[Ca2+]{Na -soil} [K+][{Ca -soil} [K+]2]or ... KV={K -soil} 2[Ca2+]{Na -soil} [K+][{Ca -soil} [K+]2]or KV= KK1[{K -soil} + [Ca -soil] ]orKK1[{K -soil} + [Ca -soil] ]Krishnamoorthy– KKO={K -soil} [Na+], KKO={K -soil} 2[Ca2+]Overstreet{Na -soil} [K+][{Ca -soil} [K+]2]or ... KK1[{K -soil} + 1.5 {Ca -soil} ]Gaines–ThomasdKGT={K -soil} [Na+], KGT={K -soil} 2[Ca2+]{Na -soil} [K+][{Ca -soil} [K+]2]or KGT= KK1[2[2{Ca soil} + {K soil} ]]Gapon KG={K -soil} [Na+],...

Environmental Soil Chemistry - Chapter 7 docx

... 1GB, UK. 6 -8 .0 -8 .2 -8 .4 -8 .6 -8 .8 -9 .0 -9 .0 -5 .8 -5 .6 -5 .4 5 4 3 pH3.1log C SHδ-Al2O3log RH1FIGURE 7.27. The dependence of the rate of proton-promoteddissolution of γ-Al2O3, ... for 24-hr periods (eachreplenishment represents a 24-hrextraction) with HNO3at pH 6. 0. FromScheckel et al. (2001), with permission.HnSiO4n-4NO3 - [SiO4]xAl-O-Si orMe-O-Silinkage(1) ... metalcenters (Furrer and Stumm, 19 86) .Kinetics of Important Soil Chemical Processes 2431510500 0.5 1.0 1.5RL , [10 -9 mol m -2 h -1 ]CL, [10 -6 mol m -2 ]SAlOOOOAlOOOOAlOOOO1kLoxalatemalonatesuccinateFIGURE...

Practical Design Calculations for Groundwater and Soil Remediation - Chapter 6 docx

... VI.2.14]The (Qa/Qw)min is the minimum air-to-water ratio (in vol/vol), and thisis the air-to-water ratio for the above-mentioned ideal case. The actual air-to-water ratio is often chosen to be a ... Eq. VI.2.14 to determine the minimum air-to-water-ratio:So,(Qa/Qw)min = 10.25 (dimensionless)c. Use Eq. VI.2.15 to determine the air-to-water-ratio:So,(Qa/Qw) = 30.75 (dimensionless)d. ... air-to-water ratio:Qa = Qw × (Qa/Qw) = (120 gpm)(30.75) = 369 0 gal/min = 493 ft3/minDiscussion. A stripping factor of three means the ratio of the designand the minimum air-to-water...

GIS for Environmental Decision Making - Chapter 6 docx

... potential of GIS, Journal of Environmental Management, 68 , 31 5-3 28, 2003. 11. Foster, D., Wood, A., and Griffiths, M., The Water Framework Directive (2000 /60 /EC) - an introduction, Department ... by Taylor & Francis Group, LLC110 GIS for environmental decision-making 6. 5.2 Removal of Peak Value Comparison of Figure 6. 4a with Figure 6. 5a shows the very localised effect of removing ... curvature of the contours across the entire southern area of the map. 6. 5.3 Cross-Validation The cross-validation plots (Figure 6. 6) indicate good correspondence between estimated and actual water...

Environmental Soil Chemistry - Chapter 0 pdf

... 2002104258International Standard Book Number: 0-1 2 -6 564 4 6- 9 PRINTED IN THE UNITED STATES OF AMERICA02 03 04 05 06 07 CTP 9 8 7 6 5 4 3 2 1 Environmental Soil Chemistry Second EditionDonald L. SparksUniversity ... ix CHAPTER 6 CHAPTER 7 Environmental Soil Chemistry Second EditionFor Joy and my doctoral advisors, David C. Martens and Lucian W. ZelaznyPrefaceSince the first edition of Environmental Soil ... students in soil science and for studentsand professionals in environmental chemistry and engineering, marinestudies, and geochemistry.Writing the second edition of Environmental Soil Chemistry...

Environmental Soil Chemistry - Chapter 1 pot

... 150–2,500 517 73–3, 861 2 ,66 0 61 0Mo 14.3 1–40 7 2–30 — — 13 8Ni 235 36 562 510 20–5,300 121 16 2,120 380 350Pb 1,832 1 36 7 ,62 7 820 120–3,000281 52–2,914 1,700 61 0Sb 10 .6 2–44 — — — — — —Se ... contaminants in water and soil and their impact on plant, animal,and human health, the emphasis of soil chemistry is now on environmental soil chemistry. Environmental soil chemistry is the study ... 1,950 480Ba 62 1 272–1, 066 1,700 150–4,000— — — 580Be <8.5 — 5 1–30 — — — —Bi 16. 8 <1– 56 34 <12–100 — — — —Cd 104 7–444 <200 < ;60 –1,500 13 2–171 38 4.5Co 9 .6 4–18 24 2– 260 15 2–113...

Environmental Soil Chemistry - Chapter 2 pps

... celldSiO250.95 60 . 06 3.390 31.3 76 7.844Al2O3 16. 54 101.94 0.974 9.015 3.005Fe2O31. 36 159 .69 0.055 0.509 0.170FeO 0. 26 71.85 0.007 0. 065 0.033MgO 4 .65 40.30 0.231 2.138 1. 069 CaO 2. 26 56. 08 0.081 ... Inorganic Soil MineralsaIR (nm) Radius ratiobCNO2–0.140 — —F 0.133 — —Cl–0.181 — —Si4+0.039 0.278 4Al3+0.051 0. 364 4 ,6 Fe3+0. 064 0.457 6 Mg2+0. 066 0.471 6 Ti4+0. 068 0.4 86 6Fe2+0.074 ... <10–100 10 6 300 20 13Nd 46 <70–300 35 4 63 38 32Ni 19 <5–700 50 2–750 80 52O — — 490,000 — 474,000 4 86, 000P 430 <20 6, 800 800 35–5,300 1,000 67 0Pb 19 <10–700 35 2–300 14 19Rb 67 <20–210...

Environmental Soil Chemistry - Chapter 3 pptx

... sulfur.Reprinted from Buffle (1984),by courtesy of Marcel Dekker, Inc.Cl - CO3S-OH-COOH-OHNorg -8 -6 -4 log C, M2SO4 2- F - PO4 3- SorgLS LH X“Simple” ligandsSites of organiccomplexantsof ... Haplaquoll ProposedbC (%) 56. 4 58.2 54.2 61 .8H (%) 5.5 5.4 6. 0 5.9N (%) 4.1 3.1 6. 0 2.5S (%) 1.1 0.7 0.9 —O (%) 32.9 32 .6 32.9 29.8Total acidity (cmol kg–1) 6. 6 5.7 6. 4 5.8CO2H (cmol kg–1), ... 1 964 ; Yuan et al., 1 967 ) in the scien-tific literature clearly established the importance of SOM in contributing tothe CEC of a soil. Helling et al. (1 964 ) measured the CEC of 60 Wisconsinsoils...

Environmental Soil Chemistry - Chapter 4 pptx

... PO4NO3OHCa 91. 36 b2. 26 5.03 0.43 0.23 0 .68 —Mg 91.95 1 .60 4.02 0.35 0.33 1.72 0.03K 99.29 0.14 0. 36 0.08 — 0.12 —Na 98.97 0.27 0.58 0.12 0.01 0.05 —Cu 1. 86 95. 26 0.13 — 1 .68 — 1. 06 Zn 42.38 ... 1311110987 6 543 -6 -5 -4 -3 log Al3+ + 3pHlog H4SiO4°IllitePyrophylliteMuscoviteKaolinite (6) Mg - MontmorilloniteAl(OH)3 (gibbsite)SiO2(quartz)SiO2 (soil) SiO2(amor)pHpHpH 6 78 6 78 -4 -3 -2 log ... 10 6 4. 360 × 10–71.995 × 10 6 1.000 × 10–94. 169 × 10–3Cu 3.224 × 10–81 .65 9 × 10 6 2.000 × 10–91.047 × 10–102.900 × 10–81.202 × 10–101.800 × 10–81.738 × 10 6 Zn 5.335 × 10 6 6. 165 ...

Environmental Soil Chemistry - Chapter 5 doc

... 5.4. -1 .0 -0 .8 -0 .6 -0 .4 -0 .200 -5 0 -1 00 -1 50 -2 00 -2 50 -1 .0 -0 .8 -0 .6 -0 .4 -0 .200 -5 0 -1 00 -1 50 -2 00 -2 50NET SURFACE CHARGE, cmol cm -2 x 10 -7 1M0.01M0.1M0.001MGOUY-CHAPMANGOUY-CHAPMANGOUY-CHAPMANGOUY-CHAPMANSTERNSTERNSTERNSTERNACROHUMOX ... (1999) 6. 31 6. 76 Montmorillonite Inner-sphere and outer-sphere4.48 6. 40 Montmorillonite Outer-sphereSr(II) 7 Ferrihydrite Outer-sphere XAFS Axe et al. (1997)Kaolinite, amorphous Outer-sphere ... 10 -7 1M0.01M0.1M0.001MGOUY-CHAPMANGOUY-CHAPMANGOUY-CHAPMANGOUY-CHAPMANSTERNSTERNSTERNSTERNACROHUMOX - ApACROHUMOX - B2ACRORTHOX - ApACRORTHOX - B2TROPUDALF - ApTROPUDALF - B2SURFACE POTENTIAL, mVFIGURE 5. 16. Comparison...

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