In many cases, frequent activation of the Twister can enable “Online Tank Cleaning”, so that the solids don’t have to be removed from the system because they have not accumulated to a level that will cause operational problems downstream.  In cases where the resuspended solids can cause issues, it is prudent to have some type of material recovery system that can separate the solids and liquids, and the oil and water, so that all hydrocarbon value can be recovered and waste can be minimized.  This system could be a 2- or 3-phase centrifuge.