Xerothermic drying is a process step in the sludge drying. The process optimizes sludge drying through the efficient use of heatto achieve a higher dry substance.
Xerothermic drying - a definition
Xerothermic drying refers to an advanceddrying drying processthat utilizes the combination of high heat and reduced pressure to efficiently remove water from sludge. This process is used in sludge processing to reduce the water content drastically, resulting in a solid, stable and environmentally friendly recyclable material.
This is how the xerothermic drying process works
By applying heat under specially controlled conditions, the boiling point of the water content in the sludge is lowered. This causes the liquid to evaporate, which not only reduces the water content, but also the weight and volume of the recyclable material. In detail, the process works as follows:
- Heating: Generation of constant heat in the drying chamber to increase the temperature of the sludge
- Pressure reduction: Lowering the pressure in the drying chamber to reduce the boiling point of the water
- Evaporation: Rapid evaporation of water at controlled temperature and pressure
- Condensation: Recovery of the evaporated water through condensation, which also recovers energy
The result of the xerothermic drying process is a heavily dewatered sludge with significantly reduced volume and weight. This facilitates the storage, transportation and further processing of the sludge, for example into fuel pellets or as an aggregate for the construction industry. In addition, the quality of the end product is improved by the elimination of harmful organisms.
Great potential for industrial sludge processing
Xerothermic drying is the ideal solution for industrial sludge drying due to its energy efficiency and ability to greatly reduce sludge volume. sludge drying of great importance. The technology is a key component of modern waste management systems that aim for high processing capacity with low energy consumption. Xerothermic drying is particularly effective in plants that require a high throughput capacity required.