Maintenance on tanks and cisterns is an operation that must be done consistently. Presents different levels of criticality related mainly to the type of tanks on which it is necessary to intervene: if, on the one hand, in the case of those built above ground and equipped with containment tanks is easy to operate, on the other, there are those buried, allocated that is, under the floor, which usually have a manhole as a single access and require greater attention.
Maintenance involves two main operations, required by environmental regulations:
The reclamation of the tanks consists in restoring the original state, eliminating the oil or diesel that residues inside. This type of intervention is part of those of normal maintenance, therefore it is always carried out as a preliminary intervention before proceeding with the vitrification or reuse or, again, the disposal of the same. This operation must be carried out in compliance with the safety standards and the personnel who perform it must be equipped with the Personal Protective Equipment defined by law.
After carrying out the reclamation we proceed with the leak test that has the purpose to exclude that there are conditions of risk, such as the danger of contaminating the surrounding area, this operation is particularly important when dealing with tanks underground.