Assessment of Trace Element Stabilization in Soil

0,92

MB

132

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5954

ID

Lulea University of Technology

2005

rok

TABLE OF CONTENT

1. INTRODUCTION . 1

2. THE SCOPE OF THE THESIS. 2

3. MATERIAL AND METHODS. 2

3.1. Soil 2

3.2. Soil amendments. 3

3.3. Soil stabilization 3

3.4. Evaluation methods. 4

3.5. Statistical analyses 5

4. RESULTS AND DISCUSSION 5

4.1. Soil amendments and stabilization efficiency (case studies) 5

4.1.1. Iron amendments 5

4.1.2. Natural organic matter and coal fly ash . 9

4.1.3. Treatment efficiency 10

4.2. Assessment of the element mobility in the treated soil. 11

4.2.1. Leaching of Cu, Cr, Pb and Zn 12

4.2.2. Leaching of As. 14

4.2.3. Supplementary to leaching test techniques 16

4.2.4. Pilot scale field stabilization experiment . 17

4.2.5. Relevance of the batch leaching test for estimating element mobility in soil . 17

4.3. Management of the treated soil. 18

4.3.1. Environmental considerations 18

4.3.2. Regulatory and economic considerations 19

5. CONCLUSIONS 22

6. OUTLOOK 23

7. LIST OF ABBREVIATIONS 24

8. REFERENCES 25