Solid bowl centrifuge
A solid bowl centrifuge is a type of centrifuge that uses the principle of sedimentation. A centrifuge is used to separate a mixture that consists of two substances with different densities by using the centrifugal force resulting from continuous rotation. It is normally used to separate solid-liquid, liquid-liquid, and solid-solid mixtures. Solid bowl centrifuges are widely used in various industrial applications, such as wastewater treatment, coal manufacturing, and polymer manufacturing. One advantage of solid bowl centrifuges for industrial uses is the simplicity of installation compared to other types of centrifuge. There are three design types of solid bowl centrifuge, which are conical, cylindrical, and conical-cylindrical. Range of applications Wastewater sludge treatment During the industrial process of wastewater treatment, huge quantity of sludge is produced. The sludge needs to be disposed of or having further treatment. One of the treatment methods available is thickening the sludge by using solid bowl centrifuges. While prior sludge have the concentration around 0.5-1 % of dry solid, after the thickening process, it will contain up to 5-6% of dry solids. This process reduces the waste of active sludge volume by more than 80% as well as minimizing the sludge amount for digestion by 30-40%. Furthermore,