The CONTIBAC® is a slightly modified FUNDABAC® candle filter used as a continuous filter thickener, producing concentrated slurries. Clear filtrate at a high flow-rate is achieved. As a self cleaning filter, a CONTIBAC® features back-washable filter elements that are flushed back with compressed gas or clear filtrate so that solids get freed into the liquid and the resulting thickened slurry is drawn off intermittently or continuously from the bottom outlet of the filter. This solid-liquid separation process mainly applies when a continuous or semi-continuous flow is required and inlet suspended solids are minimal.