Procesing Sediment

A floating suction dredger “sucks” sediment from the bottom of the tank and transports it by pipeline to the place of further processing. Sediment extracted by dredgers is diluted, during extraction, from the original dry weight of approximately 20-25% to the level of 6-9%.

Under current practice, this sediment is usually left to “dewater” either at a place of final disposal or in a temporarily constructed drainage lagoon. Making use of our complex technology, the extracted sediment is mechanically processed on the lake shore (dry matter after dewatering to 60%) and then the dewatered material is hauled by lorries for final disposal location. The mechanical processing involves a multi-phase process consisting of temporary sedimentation and homogenization tanks, filtration and separation equipment, a high-speed centrifuge and the necessary transport and handling machinery.

A proposed project must be based on an evaluation of all the necessary analyses of extracted material and applicable legislation, particularly in the sphere of waste disposal and the management of surface water. A necessary condition for successful implementation is a good project based on professional and detailed survey of the actual state of the tank.