Diesel Tank Bund Design Standards
Essential requirements for safety and environmental protection
1. Material and Construction
The bund should be constructed of non-combustible materials such as concrete, steel-reinforced concrete, or masonry. These materials offer high strength and fire-resistance.
The internal surface may need chemical-resistant lining if diesel additives could corrode the bund material over time.
2. Capacity Requirements
According to API standards and fire codes, the bund must contain 100% of the largest tank's volume in case of complete rupture.
For multiple tanks, capacity is typically 25-50% of the combined volume of all tanks in the bunded area.
3. Height and Dimensions
The bund height is typically 150-300 mm above the maximum liquid level in the tank, providing overflow protection.
In high-risk areas or for larger tanks, height may increase to 1-2 meters.
Wall thickness must withstand the hydrostatic pressure of potential diesel spills, with thicker walls for larger capacities.
4. Drainage and Ventilation
Drainage systems must prevent environmental release of diesel, using oil-water separators or closed-loop systems.
Adequate ventilation prevents explosive vapor buildup, with properly sized and located openings.
Key Design Considerations
- Material selection based on fire resistance and chemical compatibility
- Capacity calculations accounting for worst-case spill scenarios
- Structural integrity to withstand hydrostatic pressures
- Containment systems to prevent environmental contamination
- Vapor management to reduce explosion risks
5. Safety and Environmental Compliance
The design must comply with local, national, and international regulations. In the EU, the Seveso Directive sets strict requirements for diesel storage bunds.
Regular inspections are required to identify and repair cracks, corrosion, or other damage that could compromise bund integrity.