Chapter 6
From GARDGuide
6.0 Chapter 6: Prevention And Mitigation (Ward Wilson)
- 6.1 Introduction
- 6.2 Objectives of Prevention and Mitigation
- 6.3 The ARD Prevention and Mitigation Approach
- 6.4 Relevance of ARD Source
- 6.5 Consideration of ARD Factors
- 6.6 ARD and Metal Leaching and Sulphate Production
- 6.7 Climatic and Other Factors
- 6.8 Phased Approach
- 6.9 Overview of Methods
- 6.9.1 Remining
- 6.9.2 Special Handling Methods
- 6.9.2.1 Incorporation in Mine Plan
- 6.9.2.2 Segregation
- 6.9.2.3 Desulphidization
- 6.9.2.4 Compaction and Physical Tailings Conditioning
- 6.9.2.5 Encapsulation and Layering
- 6.9.2.6 Blending
- 6.9.2.7 Co-disposal
- 6.9.2.8 Permafrost and Freezing
- 6.9.3 Additions and Amendment Methods
- 6.9.3.1 Passivation
- 6.9.3.2 Alkaline materials
- 6.9.3.3 Organics
- 6.9.3.4 Bactericides
- 6.9.4 Water Management Methods
- 6.9.4.1 Hydrodynamic controls
- 6.9.4.2 Dewatering
- 6.9.4.3 Diversion
- 6.9.4.4 Filling
- 6.9.4.5 Seals
- 6.9.5 Dry Cover Methods
- 6.9.5.1 Organic
- 6.9.5.2 Soil
- 6.9.5.3 Limestone and Alkaline
- 6.9.5.4 Synthetic
- 6.9.5.5 Gas
- 6.9.5.6 Vegetation
- 6.9.6 Water Cover Methods
- 6.9.6.1 Subaqueous
- 6.9.6.2 Partial water cover
- 6.9.6.3 Wetland covers
- 6.9.7 Impact Mitigation
- 6.9.7.1 Attenuation
- 6.9.7.2 Dispersion
- 6.9.7.3 Stream Flow Regulation
- 6.9.7.4 Water recycle and reuse
- 6.10 Secondary Impacts
- 6.11 Evaluation of Alternatives
- 6.12 Design and Construction Considerations
- 6.13 Maintenance and Monitoring Considerations
- 6.14 Closure and Long-term Considerations
- 6.15 ARD Prevention and Mitigation FAQ's
- 6.16 References