Features of Each Separation Technology
Separation technologies include filtration, distillation, adsorption, absorption, extraction, and ion exchange. Each is used according to its characteristics. Here, the features of separation technologies mainly used for solid-liquid separation are introduced.
| Separation Technologies | Separation Principle | Features | Main Applications | ||
|---|---|---|---|---|---|
| Filtration | Paper Filtration | Size-Based Separation | Simple and low cost. | Coffee filters | |
| Sand Filtration | A traditional water treatment method using sand as a filter aid. Requires a large installation space. | Water purification | |||
| Diatomaceous Earth Filtration | A filtration method using diatomaceous earth as a filter aid. Various filtration methods exist depending on the liquid to be filtered. The used diatomaceous earth becomes waste. | Beverages, food | |||
| Membrane Filtration | Flat Membranes | Simple but typically used as disposable items. | Various industrial applications | ||
| Hollow Fiber and Tubular Membranes | Provides large membrane surface area per unit volume. Used with regular cleaning to prevent clogging. | Water purification, various industrial applications | |||
| Ceramic Membranes (Monolith Type) | Can be used at high temperatures. Requires periodic cleaning to prevent clogging. | Water purification, various industrial applications | |||
| Centrifugal Separation | Density-Based Separation | Effective when there is a density difference. Useful with high solid content. Difficult if density differences are small. | Various industrial applications | ||
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Asahi Kasei's hollow fiber membrane Microza® for filtration and separation is used in a wide range of fields, including pharmaceuticals, pharmaceutical water, food, chemicals, semiconductors, as well as power, water supply, and industrial water. Please see here for Microza® applications, solutions by industry, and case studies.
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