What is the waste of a titanium dioxide factory?

The waste of titanium dioxide plant mainly includes solid, gas and liquid. This time, we mainly talk about the solid waste in the waste of titanium dioxide plant. The waste of titanium dioxide plant contains calcium, iron, sulfur and other chemical components, and the main by-product is gypsum.
If the waste of titanium dioxide plant is directly stacked or landfilled, it will bring a certain degree of damage to the environment and endanger animals, plants and human beings.