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Study on the Characteristics and Restoration of Agricultural Land Contaminated by Brine

ABSTRACT第4页
摘要第5-12页
1 Introduction第12-15页
    1.1 Research Background第12-13页
    1.2 Objectives第13-15页
        1.2.1 Proposed Key第14-15页
2 Review Literature第15-28页
    2.1 Salt Sources in Soil第15-16页
        2.1.1 Natural sources of salt in the soil第15页
        2.1.2 Anthropogenic source of salt in the soil第15-16页
    2.2 Salt-contaminated Soils Major Classification第16-17页
        2.2.1 Saline Soils第16-17页
        2.2.2 Sodic Soils第17页
        2.2.3 Saline-sodic soils第17页
    2.3 Remediation Techniques for the Salt-affected Soils第17-22页
        2.3.1 Leaching第18-19页
        2.3.2 Chemicals Amendment第19页
        2.3.3 Application of Calcium第19-20页
        2.3.4 Application of Sulfur/ H_2SO_4第20页
        2.3.5 Mechanical /Physical Amendments第20-21页
        2.3.6 Electrokinetic Remediation第21-22页
        2.3.7 Remediation via Plants or Phytoremediation第22页
    2.4 Factors affecting soil remediation第22-26页
        2.4.1 Soil properties第22页
        2.4.2 Soil texture第22-23页
        2.4.3 pH and ions第23-24页
        2.4.4 Organic matter第24页
        2.4.5 Moisture第24-25页
        2.4.6 Salt-movement in the soil profile第25-26页
    2.5 Summary第26-28页
3 Materials and Methods第28-40页
    3.1 Sample collection and storage第28-35页
        3.1.1 Experimental site第28-32页
        3.1.2 Soil第32-33页
        3.1.3 Gypsum第33页
        3.1.4 Soil Sampling Depth,Time and Quantity第33-34页
        3.1.5 Preservation of Samples第34-35页
    3.2 Experiments on Lab-scale with Soil Column第35-36页
        3.2.1 Soil Column Setup第35-36页
    3.3 Soil analysis第36-39页
        3.3.1 pH第36-37页
        3.3.2 Electric Conductivity (EC)第37页
        3.3.3 Cation Exchange Capacity第37-38页
        3.3.4 Concentration of Ions第38页
        3.3.5 Heavy Metals Concentration第38-39页
        3.3.6 FTIR, XRD & XRF Analysis第39页
    3.4 Analysis of Leachate第39-40页
4 Results and Discussion第40-59页
    4.1 Volumes of leachate from soil columns第40-41页
    4.2 Soil properties第41-47页
        4.2.1 Leachate pH第42-44页
        4.2.2 Colour of leachate第44-46页
        4.2.3 Leachate Electric Conductivity (EC)第46-47页
    4.3 Removal of salt ions from soil after treatment第47-49页
    4.4 Heavy metals concentration第49-51页
    4.5 FTIR, XRD & XRF Analysis第51-55页
    4.6 The Comparison properties of soil after the treatments第55-59页
Conclusion第59-61页
Acknowledgements第61-62页
Special thank第62-63页
References第63-71页
Dedication第71-72页
Appendices第72-82页
    Appendix A. Untreated Soil Data第73-75页
    Appendix B. Soil Data After Treatment第75-82页

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