Toxic Storage Tank
When a long standing client of Acumen’s needed to empty and clean a very large diameter storage tank, the challenge was laid down to do so without any risk to anyone as the tank had several hundred tonnes of Crude Benzene residues which is a highly toxic, flammable and carcinogenic substance.
Simon designed a system whereby the contents, which had settled to form a compacted layer, could be re-suspended and partially dissolved for pumping and transfer for offsite disposal by high temperature incineration. These works were to be undertaken using remotely operated machinery, so that no personnel had to work in confined spaces or in close proximity of these extremely hazardous substances. As part of the design of the works, the vessel was filled with an inert gas to mitigate any risk associated with the flammability of the material.
The final cleansing of the tank required ultra high pressure water jetting of the internal surfaces to remove all of the chemical deposits, before the tank was handed back to client for statutory safety and integrity inspections...