Bunded storage tanks have become a requirement for any business that involves storing fuel and other hazardous substances. This is primarily because of environmental concerns and industry laws and regulations. The bunded diesel tanks are by far the most reliable, safe, and effective storage system. Here is how bunded tanks work:
The bund is a wall within the storage system or tank, which is specifically designed to prevent any spillage of the substance it contains. The bund wall, also known as the bunding, is an excellent liquid containment, preventing the liquid from spilling through the structure. In other words, this storage system is simply a tank within a tank. In the instance of any leakage, the substance will not spill directly to the environment.
Storage for Hazardous Substances
Every business involving hazardous substance, diesel, chemicals, and wastes is required to use bunded tanks as their storage system. The bunding, which is a double prevents leakage of the substances contained. These substances are extremely dangerous to the environment. Thus, the bunded system prevents any pollution, contamination, and damage to the environment and the people around.
The bunding is made of materials that are waterproof and are specifically compatible with the substances it contains, avoiding any harmful chemical reactions. Most bunded diesel tanks are made of concrete because this material is durable and impervious. However, it is not recommended for liquids with strong acids, as it may cause dangerous reactions. For substances with strong acid, an additional acid resistant coating is used.
Large and Durable
Bunded diesel tanks are large and durable enough to contain the fuel. It should be able to hold 100% or the maximum capacity of the tank without any problem. Operators follow a strict capacity guide when it comes to fuel tanks, leaving enough space for the liquid not to overflow. The bunding is always greater than the 100% capacity of any tank vehicle filling it.
Prevents Rainwater Contamination
Any hazardous liquid mixed with water will be contaminated and will not be as effective anymore. The bunding is designed to prevent rainwater from entering and contaminating the substances contained. Moreover, the bunded tanks must be stored in a roofed facility. If a roofed facility is not available, proper disposal or drainage of rainwater must be observed and implemented as recommended by regulations.
Metal Tanks and Self Bunded Tanks
If you use ordinary metal or steel tanks, an additional bunding is necessary to be placed inside the metal tank such as linings, drums or spill pallets, acting as the bund wall. However, if you are using a self bunded tank, which already has a built-in bunding, there is no need for the additional facility anymore. Self bunded tanks are made to meet environmental and industry requirements. Therefore, it is suitable for storaging fuel and other hazardous liquids.