TECHNOLOGY OF LOCAL CLEANING OF THE LIQUID FRACTION OF DRILLING MUD FROM SPECIFIC POLLUTANTS

The results of using the technology of pre-treatment of technical wastewater from the liquid fraction of drilling mud, which is intended for local purification of wastewater from specific pollutants (heavy metals, oil products), calcium oxide and hydroxide, and humic substances, are presented. study of the effective concentration and includes the following processes: reagent flotation using the coagulant — ferric sulfate III. The effective concentration of iron sulfate III, determined as a result of experimental studies, should correspond to the volume of wastewater in the proportion of 100–120 mg/dm3.