Wood preservation facilities, ammoniacal copper zinc arsenate: chapter C

Preservative-specific Information and Recommendations

Photo: © Environment Canada

This chapter must be used in conjunction with Part I - Chapter A - General Recommendations for All Wood Preservatives.

Detailed Contents

• 1 Production and Use
• 2 Physical and Chemical Properties
• 3 Environmental Effects
  • 3.1 Aquatic Toxicity
• 4 Human Health Concerns
• 5 Description of Preservative Application and Potential Chemical Discharges at ACZA Wood Preservation Facilities
  • 5.1 Description of Process
  • 5.2 Potential Chemical Discharges
  • 5.3 Potential Effects of Chemical Discharges
• 6 Protection of Personnel
  • 6.1 First Aid, Precautions and Hygiene for ACZA Exposure
  • 6.2 Regulatory Controls
  • 6.3 Safety Precautions
  • 6.4 Biological Monitoring of Exposed Workers
• 7 Design Recommendations
• 8 Operational Recommendations
  • 8.1 Operational Standards
  • 8.2 Facility Wide Recommendations
  • 8.3 Area specific Recommendations
• 9 Waste, Process Emissions and Disposal
  • 9.1 Control, Treatment and Disposal
  • 9.2 Liquids Containing ACZA
  • 9.3 Solids with High ACZA Concentrations
  • 9.4 Miscellaneous Solid Wastes
  • 9.5 Air Emissions
• 10 Environmental and Workplace Monitoring
  • 10.1 Baseline Environmental Evaluation
  • 10.2 Environmental Monitoring
  • 10.3 Workplace Exposure Monitoring
• 11 Transportation of ACZA Components, Solutions and Wastes
• 12 Environmental Emergency Notification and Contingency Planning
  • 12.1 Environmental Emergency Notification
  • 12.2 Spill Contingency Planning
  • 12.3 Fire Contingency Planning
• 13 References

List of tables

• Table 1. ACZA Use in Canada
• Table 2. Physical and Chemical Properties of ACZA Solution
• Table 2.1. Physical and Chemical Properties of Ammonium Hydroxide (5)
• Table 3. Regulatory Limits for Arsenic, Ammonia, Copper and Zinc in Natural Water Bodies
• Table 4. Potential Health Effects of Exposure to ACZA
• Table 4.1. Potential Health Effects of Exposure to Ammonium Hydroxide
• Table 5. First Aid Measures for Exposure to ACZASolution/Concentrate and Ammonium Hydroxide Concentrate
• Table 8. Additional Safety Precautions for Personnel Working with ACZA
• Table 10. Additional Recommended Design Features for Chemical Delivery Area
• Table 11. Additional Recommended Design Features for Chemical Storage Areas
• Table 12. Additional Recommended Design Features for Chemical Mixing Systems
• Table 13. Additional Recommended Design Features for Treatment Process Systems
• Table 20. Additional Recommended Operating Practices for Process Systems
• Table 21. Additional Recommended Practices for Operating Practices for Kiln, Accelerated Stabilisation Chamber and Dripping Area
• Table 22. Additional Recommended Operating Practices for Maintenance, Cleanout and Shutdown of Treatment Systems (ACZA Preservatives)
• Table 24. Typical Background Levels of ACZAConstituents

Figure

• Figure 1 Potential Chemical Releases from Ammoniacal Copper Zinc Arsenate ACZA Pressure Treatment Facilities