RECYCLING METHOD OF CORE DRILLING WASTE MUD

The disclosure relates to a recycling method of core drilling waste mud. The innovation is that core drilling waste mud is subjected to step-by-step treatment by using a pretreatment agent and a posttreatment agent, wherein nonionic polyacrylamide in the pretreatment agent coordinates with modified activated carbon particles to wrap, adsorb and flocculate oil residues, heavy metal particles and macromolecular chemicals in the waste mud to finally form a "clear liquid" on an upper layer and a "turbid liquid" on a lower layer. The "clear liquid" on the upper layer is extracted back to core drilling construction for recycling; the "turbid liquid" on the lower layer is pumped into a static solidification tank, and solidified through coordination of an amidoamine mud solidifying agent in the posttreatment agent with artemisia plants so that "turbid liquid" forms a solid waste whose volume is 5%-8% of that of the original waste mud.