Аннотация
This article applies the method of sorption treatment of wastewater from petrochemical production with a sorbent based on bentonite clay from the Darbazа deposit.In connection with the increase in consumption and discharge of wastewater by industrial facilities in our country, the issue of purification of emissions, wastewater, and the introduction of closed production cycles are the main methods of improving environmental quality. One of the largest industrial enterprises, during the operation of which washing wastewater is generated, is the largest oil refinery (PetroKazakhstanOilProducts), located in Shymkent, as well as petrochemical industry enterprises. Some of the largest industrial enterprises are the oil refining and petrochemical industries. As is known, enterprises in this industry have a negative impact on the environmental situation in many regions of Kazakhstan, polluting the air, water bodies, and soil. The results obtained during the experiment proved the effectiveness of the sorbent in relation to chemical oxygen demand and petroleum products in the analyzed solutions. To carry out the sorption process, bentonite clay, which was selected as a sorbent material, was subjected to chemical activation using sodium salts. Based on the results obtained, we can conclude that the purification efficiency for activated bentonite with NaCl in terms of chemical oxygen demand is 82.85%, for petroleum products - 89.45%, and the purification efficiency for activated bentonite with Na2 CO3 reaches 85.41% for chemical oxygen demand, for petroleum products - 89.78%.