A typical sulphuric acid tank monitoring schedule would include daily visual inspections, weekly internal inspections, and annual or quarterly checks for specific parameters like emissions and fugitive emissions. Internal inspections should be performed at least every five years. Source and fugitive emissions monitoring should be done quarterly for the first year and at least annually thereafter.
Here's a more detailed breakdown:
Daily:
Visual Inspections: Check for leaks, corrosion, or any signs of damage to the tank and its surrounding area.
Temperature and Pressure Monitoring: Monitor these parameters to ensure they are within safe operating limits.
Weekly:
Internal Inspections: Perform a visual inspection of the tank's interior to identify any signs of corrosion, damage, or contamination.
Annual/Quarterly:
Emissions Monitoring:
Monitor source emissions (e.g., from stacks) for pollutants like PM and H2SO4 vapor/mist, according to the Central Pollution Control Board (CPCB) guidelines [1].
Fugitive Emissions Monitoring:
Monitor fugitive emissions (e.g., from tank vents and leaks) for the same pollutants, again, according to CPCB guidelines [1].
Laboratory Analysis:
Have a qualified NABL accredited or ISO17025/EPA approved laboratory analyze the collected samples and submit the results to the concerned SPCB/PCC, also according to CPCB [1].
Other Considerations:
Secondary Containment:
Ensure the tank is located within a secondary containment area (like a dike) that can hold at least 110% of the tank's volume.
Ventilation:
Ensure the storage area is well-ventilated to prevent the buildup of acid fumes.
Acid-Proof Materials:
Use acid-proof materials like HDPE/MS or rubber-lined steel for the tank and its surrounding infrastructure.
Emergency Procedures:
Have a clear emergency plan in place for leaks, spills, or other incidents.
Signage:
Clearly mark the storage area with warning signs about the hazards of sulphuric acid.
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