Heavy Metals Release in Soils - Chapter 5 ppt

... 130 HEAVY METALS RELEASE IN SOILS kinetics study, 20 mg Ca-smectite was shaken with 10 ml of 0.0 05 M Ca(NO 3 ) 2 solution containing initially 5, 10, 25, and 100 mg Zn L –1 for 30 min, 2 h, ... experimental kinetics during 2880 min of sorp- tion of a protein on calcium-saturated Wyoming smectite. L 153 1Ch05Frame Page 118 Monday, May 7, 2001 2:33 PM © 2001 by CRC Press LLC 128...

Ngày tải lên: 12/08/2014, 02:20

... POM− + = − [] [] [] 2 L 153 1Ch07Frame Page 150 Monday, May 7, 2001 2:36 PM © 2001 by CRC Press LLC 156 HEAVY METALS RELEASE IN SOILS on Fe-oxides compared with Mn-oxides. Metals incorporated into the structure ... values ranging from L 153 1Ch07Frame Page 152 Monday, May 7, 2001 2:36 PM © 2001 by CRC Press LLC 150 HEAVY METALS RELEASE IN SOILS THE PARTITIONI...

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... and mobility of metals from mine- and smelter-contaminated soils include measuring the distribution of metal contam- inants with progressive depth in soil profiles, monitoring the mineralogical properties of ... 39: 85 1-8 56 . Scocart, P.O., K. Meeus-Verdinne, and R. DeBorger. 1983. Mobility of heavy metals in polluted soils near zinc smelters. Water Air Soil Pollut. 20: 45...

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... partitioning in tomato plants in relation to sulfate concen- tration in soil, in Contaminated Soils: Third International Conference on the Bio- geochemistry of Trace Elements, Paris, May 1 5- 1 9, 19 95, ... crops. In Selenium in Agriculture and the Environment, Jacobs, L.W., Ed., SSSA Special Publication 23, American Society of Agronomy, Inc., pp. 6 5- 9 5. Neal, R.H. 19 95....

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... extracted also increased with increas- ing carbonate concentrations. Arsenic-Bearing Phases in Mine Sites Some studies reported that, in As-contaminated soils, the primary As mineral assemblage ... 2001 by CRC Press LLC 226 HEAVY METALS RELEASE IN SOILS for the use of kinetic or time-dependent models in soils have been suggested (Skopp, 1986). First, many reactions in so...

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... 159 8 1603 159 6 1667 1648 1618 1620 1712 1 655 1688 159 2 1604 155 3 16 05 157 6 159 5 156 6 1620 1611 159 5 158 3 1690 1634 1647 157 1 158 6 1462 158 5 1484 155 5 1479 159 6 154 9 157 9 155 9 1606 156 4 16 05 ... 1246 1187 1 157 10 45 1026 1244 12 15 1149 1 154 1136 1142 8 75 870 1149 1 151 1086 1088 1039 1061 653 654 1038 1022 10 35 1018 781 782 854 862 853 848 661 654 772 769 659...

Ngày tải lên: 11/08/2014, 10:22

... 0.242 0.00 13 .57 — 0.230 0.000 0.230 0.2 75 0.600 0.42 18.99 45. 4 0.438 0.217 0. 655 0.678 1.669 1.07 27.40 25. 7 0.928 0 .57 2 1 .50 1 1 .56 5 1. 253 0. 45 19.16 42.2 0.793 0.247 1.040 Source: Reprinted with ... 0.242 0.00 13 .57 — 0.230 0.000 0.230 0.2 75 0.600 0.42 18.99 45. 4 0.438 0.217 0. 655 0.678 1.669 1.07 27.40 25. 7 0.928 0 .57 2 1 .50 1 1 .56 5 1. 253 0. 45 19.16 42.2 0.79...

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... light-scattering instruments, is similar to the refractive index of phyl- losilicate clays. Light scattering from an intense, coherent, monochromatic beam, usually a He- Ne or Ar laser in most instruments, ... observed in the SEM: characteristic x-rays indicative of sample com- position overlying a continuum x-ray background (i.e., Bremsstrahlung radiation). The principal advantage of EDS...

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... Some evidence indi- cates that metals can replace zinc in DNA-binding zinc finger proteins (119), which are typically transcription factors that show a high site-specific DNA bind- ing (120). This ... nickel-containing catalysts, have been associated with human cancer (6). Individuals involved in certain mining processes and in iron or steel founding may be at greater risk for metal-ind...

Ngày tải lên: 11/08/2014, 15:20