Analysis of Build-Up of Pollutants in Bottom Deposits and Their Environmental Impact

International science and technology conference "Earth science"

Larin, D.^1 ; Staseva, E.^2 ; Pchelnikov, I.^1

M.I. Platov South-Russian State Technical University, Novocherkassk Polytechnic Institute, Novocherkassk, Russia^1

Don State Technical University, Rostov-on-Don, Russia^2

关键词: Chemical constitution;    Heavy metal accumulation;    Material compositions;    Metals recoveries;    Natural ecosystem;    Sorption properties;    Toxic heavy metals;    Utility companies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/272/2/022228/pdf
DOI  :  10.1088/1755-1315/272/2/022228

来源: IOP

【 摘 要 】

Problem immediacy. Modern environmental situation in Rostov region is characterized by great pollution supply in the open air, industrial and household waste production, and presence of waste and surface watercourses. The main sources of pollution are motor transport, industrial and public utility companies in the region. Bottom deposits are generators of pollutants that are entering to water bodies. Whereas it determines the immediacy of research of their specific aspects, structures, chemical constitution and material composition and their impact on ecosystems as well. Purpose. Researching of build-up of pollutants in bottom deposits and analysis of their environmental impact. Object of research: Bottom deposits in water bodies of Rostov region. Subject of research: Analysis of heavy metal accumulation in bottom deposits in water bodies Methods. Toxico-chemical agents' extraction in bottom deposits in water bodies of Rostov regions was performed in accordance with GOST 17.1.5.01-80, RD 52.18.191-89 based on atomic-and-absorption analysis. Results. Problem of pollution of bottom deposits is a result of human impact on the environment. Bottom deposits owing to their high set sorption properties could be thought of as an integrated indicator of man-caused impact to water supplies. Survey findings shows that there are toxic heavy metals such as copper, lead, zinc, nickel, cadmium in bottom deposits composition in water bodies of Rostov region. Index of impact of pollutants in bottom deposits on natural ecosystems is excess of their concentration over MAC (maximum allowable concentration). Findings: Survey findings shows the serious overrun of MAC of heavy metals in bottom deposits composition in water bodies of Rostov region. This points to necessity of survey of economy heavy metals recovery techniques and bottom deposits detoxification methods. This problem's solution is the most pressing thing not only for Rostov region but the whole Russia.