This service is ideal for all types of pits, separators, interceptor bays and lagoons. Sludge extraction is carried out with the use of pumps, Hydrodredger (under water robots), floating barges, excavators, or Tradebe's newly acquired Dredge. Extracted sludge is processed through screening equipment and centrifuges or filter press equipment to separate and maximize oil recovery and minimize sludge disposal. Tradebe can offer this service as a long term contract or project work.