In the operation of liquid-solid separation unit in chemical industry, hydrocyclone can be used for concentration or clarification. The hydrocyclone can separate solid particles larger than 10 μ M. If the solid particles do not dissolve in 5-10 minutes, they can be separated by using the characteristics of short residence time in the cyclone.
At present, the widely used technologies are as follows:
Pre concentration in front of centrifuge and filter to optimize the working conditions of centrifuge and filter;
Recovery of useful solid particles from waste liquid;
Desanding and impurity removal of industrial circulating water;
Controlling the particle size in the process of crystallization
Refinery wastewater treatment.