Out of service, you cannot simply abandon your oil tank. It can be the source of danger such as an explosion although fuel oil is not very flammable. An empty or nearly empty tank accumulates gas. Also, its abandonment harms the environment.
Before deciding what to do with your oil tank, it is important to know some details about spent tanks. It should also be noted that there is a law in force concerning the safety rules for tanks that have been the subject of the storage of petroleum products.
What law governs the abandonment of a tank?
According to article 28 of the decree of July 1, 2004, TITLE II relating to storage rules:
“Any abandonment (permanent or temporary) of a tank must be the subject of measures to avoid any risk of vapor formation:
– Emptying, degassing, and cleaning;
– Filling of the tank (the product used for neutralization must cover the entire surface of the internal wall and cleaning);
– Or withdrawal of it
The company intervening in this context provides a certificate to the user guaranteeing the proper execution of the inertia operations mentioned above.
If the abandonment is due to the modification of the heating installation, it is up to the intervening company to comply with these provisions. “
It is important to check the condition of your oil tank even if it is no longer in use. Not only to comply with the law but also to ensure human and environmental security. The vapors which form in these tanks which are subjected to abandonment can constitute real dangers.
It is also in this sense that it is required by law to have a certificate indicating the operations carried out on the latter, for neutralization, but it is also required to have a certificate of abandonment and a waste tracking slip for final removal from the tank, before sending it to an approved waste treatment center.
Degassing and neutralization: two essential steps for an end-of-life tank
A degassing operation must precede an action to neutralize an unused fuel tank. Indeed, when the tank is empty or almost empty, steam forms inside. These two operations must be carried out by a professional, as required by law to have a valid certificate.
Once degassing is complete, at most after 48 hours, neutralization must be carried out. This process consists of ensuring that the tank remains unusable by filling the latter with sand, earth, or even concrete, which is recommended above all for underground tanks. For above-ground tanks, some owners choose to use them as rainwater tanks.
Some details on degassing your oil tank
Whatever the size of your tank, a degassing operation should always be carried out by a certified professional. It is an operation that requires taking a certain precaution due to the gas suspension on the walls which is very flammable. If the gas content is low, a simple ventilation operation may be sufficient to degas the tank; otherwise, suction must be carried out.
However, it should be noted that before carrying out this operation, it is essential to empty the tank and get rid of all residues. Once degassing is complete, a cure is carried out. To check that the tank contains no more gas, an explosimeter is used.
Some details on the neutralization of your oil tank
The neutralization action of the tank must be carried out within 48 hours. After this time, vapors can again form on the walls. Neutralization is easy since it suffices to fill the tank with an inert solid element, generally used for underground tanks. Once filled, the tank is safe. For an above-ground tank, the professional sometimes proceeds to cut the latter, avoiding the use of material that generates flame or smoke.
Degassing your oil tank comes down to the process of removing gas that forms inside when it is no longer in use and is empty or nearly empty. Only a professional can intervene in this action to comply with the standards required by law and for the issuance of a certificate. The degassing price may vary from one service provider to another and depending on the volume of your tank. Before performing this process, you can request a quote.
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