A bunded container is a storage unit designed with a secondary containment system to prevent leaks and spills of hazardous liquids. It consists of an inner tank or container that holds the stored substance and an outer bund that captures any leaks.
The secondary containment can usually hold at least 110% of the inner container’s capacity. Depending on what substance is required, the bund can be made from different materials for the spill pallet. Spill pallets are designed to contain leaks, IBC and other drips from drums.
Bunds must meet standards like the Control of Pollution Regulations for oil storage in the UK, and relevant CEN or British Standards.
Bunded containers are widely used in industrial, agricultural, and commercial settings to maintain safety, protect the environment with these details.
When dealing with chemical storage, safety should always come first. One of the key safety measures in the industry is the use of bunds.
A bund is a secondary containment system which is designed to capture and contain any leaks or spills from a primary storage tank. It is a protective barrier helping to prevent hazardous substances from escaping the equipment into the surrounding environment. This reduces the risk of contamination as well as staying in line with environmental and safety regulations.
Bunds are usually made from concrete, steel or plastic, and are designed to hold a specific volume of liquid, usually at least 110% of the primary tank’s capacity. This provides enough safety and control in case of a breach.
Environmental Protection – If a chemical spill takes place, it can have a devastating effects on soil, water sources, and ecosystems. Having a well-designed bund system prevents these substances from spreading beyond the storage area and keeps the areas safe.
Regulatory Compliance – In the UK, bunding is a legal requirement for many industries handling hazardous materials. Regulatory bodies such as the Environment Agency and the Health and Safety Executive (HSE) set strict guidelines on secondary containment to minimise risks and contact.
Workplace Safety – Protecting employees from exposure to dangerous chemicals is a top priority for businesses. Bunds help contain spills to reduce the likelihood of slips, chemical burns, and inhalation of toxic fumes.
Cost Savings – Preventing spills reduces cleanup costs and damages to infrastructure, therefore investing in a high-quality bund system can mean long term savings.
Bunds come in various forms and are tailored to different storage requirements. Integral Bunds – Built directly into the chemical storage tank, providing seamless containment. External Bund Walls – Constructed around the storage tank, often made from concrete or steel, forming an enclosed containment area. Portable Bunding Solutions – Flexible and temporary containment systems, ideal for mobile storage and transport.
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