During the drilling process, the residue from the mud treatment through the solid control system contains a large amount of harmful substances such as oil, heavy metals, and sludge. Direct discharge of these residues can cause irreparable damage to the soil. Therefore, special treatment is required for drilling mud to prevent it from being discharged. Before any discharge, the mud must be treated until it meets the national environmental requirements for emission standards. This is why the zero-discharge treatment of drilling mud is necessary.