Industrial filtration equipment is used to filter, thicken or clarify a mixture of different elements. There are several different ways to classify products. Examples include by driving force (gravity, pressure, vacuum centrifuge); filtration mechanism (filter medium); process goal (cake, clarified liquid, or both); operating cycle (continuous or batch); material size (particle size), and process stage (pretreatment, solids concentration, solids separation). Application ratings are based on published literature and include adhesives, chemicals, construction materials, cosmetics, drinking water, food and beverages, heat transfer fluids, oil and fuel, ore and minerals, paint and coatings, paper and pulp, and waste and sludge. Industrial filtration equipment for sanitary and pharmaceutical applications is also available.