Beet Pulp Pellets processing

For processing, the beets are first washed with water to remove dirt and other large debris, and then they are sliced into cossettes. The cossettes are extracted with water at temperatures around 70°C for about 100 minutes. The raw juice obtained is purified by a treatment with milk of lime and carbon dioxide. The resulting material, the carbonation sludge, is removed by filtration and pressed as carbonation lime. The resulting juice is called “thin juice”. The “thin juice” is concentrated by evaporation to thick juice. The evaporation is carried out in multi-stage evaporators working at a temperature range of 98-130°C at different pressures. The resulting “thick juice” is further concentrated to crystal magma from which crystalline sugar is recovered by centrifugation.

During the centrifugation process, the crystals are separated from the syrup. The crystals are dried, cooled and stored for further use. The remaining syrup, the so-called molasses, is mainly used as animal feed or as fermentation substrate. The recovery of residual sucrose from molasses is done in some regions, but not extensively. The material remaining from the treated cossettes is referred to as wet pulp. This pulp is pressed and dried to remove water and is commonly pelleted with added molasses. Carbonation lime is used as fertilizer.
by Atobiz