Definition of filler
Filling generally refers to materials that are filled in other objects.
In chemical engineering, filler refers to the inert solid materials installed in the packed tower, such as Pall rings and Raschig rings, etc., whose function is to increase the gas-liquid contact surface and make them mix strongly with each other.
In chemical products, fillers, also called fillers, refer to solid materials used to improve processing performance, product mechanical properties, and/or reduce costs.
In the field of sewage treatment, it is mainly used in the contact oxidation process, and microorganisms will accumulate on the surface of the filler to increase the surface contact with sewage and degrade the sewage.
Advantage:
Simple structure, low pressure drop, easy to use corrosion-resistant non-metallic materials, etc. It is quite suitable for gas absorption, vacuum distillation and handling of corrosive fluids.
Disadvantages:
When the tower neck increases, it causes