RESEARCH OF WASTEWATERS FROM THE OIL REFINERY

Industrial wastewaters are extremely hazardous to the environment. For the analysis of such waters three samples were collected from the Oil Refinery and the content of polycyclic aromatic hydrocarbons and heavy metals in wastewater was determined using analytical methods. Water samples were analyzed in accordance with the contract HS-153/2-18 between Heydar Aliyev Oil Refinery and Baku State University's Department of Ecological Chemistry. The chemical analysis of heavy metals and polycyclic aromatic hydrocarbons were carried out using extremely sensitive devices such as Perkin Elmer ICP/OES-2100DV and GC-MSD gas chromatograph 6890N with a highly efficient mass-selective detector-Agilent 5975. In the Hazar Ecological Laboratory performed quantitative analysis of PAHs in water samples as well as heavy metal determination. It was determined that some the toxic organic compounds (for example naphthalene) investigated in the waste waters of the oil industry exceed the allowable limit. A total of 16 polycyclic aromatic hydrocarbons and 9 heavy metals were detected in water samples. It was found the total amount of organic and inorganic C atoms in wastewaters. It has been established that carbon atoms of inorganic origin in industrial wastewater are 3 times less than carbon atoms of organic origin. This fact indicates that the wastewater is enriched or contaminated with toxic organic compounds