Assessment of the content of biogenic elements in the evaporation pond of the “Caspi Bitum” plant

Abstract

The article presents the results of environmental monitoring of wastewater generated as a result of the production activities of the» Caspi Bitum « plant. The analysis of the content, distribution, and dynamics of biogenic elements in the evaporation pond belonging to the enterprise is carried out. Today, one of the most pressing problems is the industrial ingress of biogenic elements to water fields, which leads not only to changes in the chemical composition and quality properties of the reservoir, but also to salinization of beaches. Analysis of its composition, tracking the dynamics of biogenic elements in the pond water allows you to describe the overall state of the reservoir. This study was conducted for this purpose. The work is based on materials collected during field research on the evaporation pond of the «Caspi Bitum» plant from autumn 2018 and summer 2019. Samples are collected from the water surface at pre-set coordinates and sent for laboratory analysis. Chemical analyses of water samples were performed for the following parameters: ammonium nitrogen, phosphates, nitrites, nitrates and phenol. Also, the amount of these substances was reviewed and compared with the level of MPC according to regulatory documents. Hydrochemical analysis of samples was performed using photometric and ion chromatography methods. Data on biogenic elements in water allows predicting changes in the quality of water environments and is used in the regulation and control of the overall state and pollution of ecosystems in water.Key words: waste water, biogenic element, purification, evaporation pond, petroleum products.