ENVIRONMENTAL RESTORATION of METALSCONTAMINATED SOILS - CHAPTER 8 doc

... 180 8. 8.3 Remediation Time Requirements 181 8. 8.4 Cost 182 References 184 8. 1 Introduction In situ remediation of heavy metal-contaminated fine-grained soils, such as silt and clay, is often ... 172 8. 4 Enhancement Conditions 172 8. 5 Recent Developments 173 8. 6 Field Demonstrations 176 8. 7 Theoretical Modeling 177 8. 8 Practical Considerations 1 78 8 .8. 1 Electrode...

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... States of America 1 2 3 4 5 6 7 8 9 0 Printed on acid-free paper Library of Congress Cataloging-in-Publication Data Environmental restoration of metals-contaminated soils / edited by I.K. Iskandar. p. ... This book, Environmental Restoration of Metals-Contaminated Soils , follows earlier titles: Engineering Aspects of Metal-Waste Manage- ment , 1992, and...

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... — a — — 40.6 15.9 84 .4 71.7 Cu 500 Cu 1000 — — — — 33.9 42.2 28. 3 73.4 Ni 350 Ni 700 — — — — 81 .2 89 .6 54.2 84 .7 Pb 1500 Pb 300 63.7 51.7 68. 6 65.6 39.3 20.3 36.4 36.5 Cd 20 Cd 40 52.4 65.3 85 .7 89 .5 38. 5 28. 1 54.9 55.4 a Yield ... 0.11 a 0.06 a 0. 08 a 1 4.1 0.96 0.32 0. 18 0.06 0.39 0. 18 2 5.1 0.46 0.23 0.14 0.05 0.26 0.13 3 9.4 0.77 0.47 0.25 0.09 1. 28 0.42 5 7.4...

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... Pb, % 87 44 27 88 68 42 Decrease in nonresidual Pb, % 50 69 23 52 Sum of all fractions 2,920 ± 58 2 ,85 0 ± 44 2,660 ± 87 6,310 ± 190 6,190 ± 421 6, 380 ± 4 38 Total via single digestion 2, 680 ± 80 5,970 ... EPA, Handbook on in-situ treatment of hazardous-waste-contaminated soils. Risk Reduction Engineering Laboratory, Of ce of Research and Development, Cincinnati, OH. EPA/54...

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... Sorption of Cadmium 80 4.3.1.2 Sorption of Mercury 82 4.3.1.3 Soil Sorption Phases 87 4.3.2 Metal Desorption from Soils 88 4.4 Conclusions 89 References 90 Introduction Fate and bioavailability of ... in soils. 4131/frame/C04 Page 77 Friday, July 21, 2000 4:57 PM © 2001 by CRC Press LLC 82 Environmental Restoration of Metals–Contaminated Soils FIGURE 4.3...

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... Council of Repub- lic of China (Grants no. NSC8 5-2 621-P-00 2-0 04 and NSC8 6-2 621-P-00 2-0 06). References Adriano, D.C., Trace Elements in the Terrestrial Environment , Springer-Verlag, ... 415 a 282 a 3 98 a FO ND b 343 a 381 b 282 a 3 98 a MO ND b 330 b 381 b 235 c 3 98 a Lime ND b 343 a 389 b 282 a 3 98 a Phosphate ND b 343 a 381 b 275 b 3 98 a Compost ND b 3...

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... 16.04b 39.13a 6.40c 8. 35a 3.42b 7.97a 18. 22a 37.95a 7.60b 8. 84a 3.46b 8. 07a 18. 07a 38. 45a 8. 40a 8. 70a 3.40b 7.94a 17.78a 37 .82 a Ni S1 4.00d a 4.67a 2.92a 1.75a 19 .85 a 29.19a 6.60c 3.39a ... 347.60a 284 .40a 632a S3 4.30d 155.52a 9.72a 140.94b 184 .68c 486 a 6.20b 67.34b 4 .81 b 202.02a 206 .83 b 481 a 7.30c 28. 80c 4 .80 b 244 .80 a 201.60b 480 a 7.70a 14.70d 4.90b 24...

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... the University of Mississippi to separate several metals-contaminated soils on behalf of the U.S. Army Corps of Engineers (Williford et al., 1997). Figure 7. 18 shows the overhead efflu- ent of a sand-sized ... Study Protocol: Bench-Scale Level of Soils Washing for Contami- nated Soils, Interim Report, 1 989 a. U.S. EPA, Innovative Technology: Soil Washing, OSWER Directive 9200...

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... under Irrigation No. of Years Irrigated 2-1 , S-2, S-3 Tlaxcoapan Lagunilla 1912 87 2-4 , S-5 Tlahualilpan Tepatepec 1912 87 2-6 , S-7, S -8 Mixquiahuala Progreso 1920 79 S-9, S-10 Tepatepec Tepatepec 1954 35 S-11 ... 0 .81 *** 0. 78* ** 0. 58* * 0 .80 *** 0 .81 *** 0.74*** 0.63** 0.20 –0.01 NiPp 0.72*** 0.62** 0.64** 0.46 0. 18 0.51* 0.35 0.30 0.39 0.62** 0.04 0.09 Pb Pbto...

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... chemical speciation of Se in cul- tivated soils. Identification of the chemical forms of Se in soils is very difficult because of the presence of Se in small amounts and complex matrix of soils. But recent ... Press LLC Restoration of Selenium-Contaminated Soils 207 10.3 Selenium Content of Seleniferous Soils Early research on Se content of seleniferous soils...

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