In US Oil Refineries, the cleaning of aboveground storage tanks can be a complicated, lengthy, and costly task. In most cases, the refinery owner has a limited budget, restrictive schedule, and is bound by specific federal, state, and local regulations. Federal regulations include RCRA restrictions that include required waste minimization, limited disposal options, strict air emission standards, and stringent record keeping and regulatory reporting requirements.
In most cases, despite the fact that the remaining tank bottoms in the tank contain sediment and water, the remaining tank bottoms are also entrained with valuable hydrocarbons. The solution for US Refineries is on-site processing of hazardous waste tank bottoms via 2~Phase Centrifuges, 3~Phase Centrifuges, and/or filter presses. This technology is capable of separating the valuable hydrocarbons from the solids and water. The benefits are significant: