THE STUDY OF TECHNOGENICALLY TRANSFORMED WATER ECOSYSTEMS WITHIN AVIATION FACILITIES OPERATION AREA
Journal Title: Вісник Національного Авіаційного Університету - Year 2018, Vol 76, Issue 3
Abstract
The object of the research is technogenically transfo rmed aquatic ecosystem which helps to develop water protection measures and ensure the ecological safety of technogenically conditioned ecosystems of rivers passing through urban areas within aviation repair fac ilities. The conceptual model of aquatic ecosystem consists of the Nyvka and Irpin rivers, both aquatic ecosystems belong to the Dnieper basin, and the permanent trophic connection makes it possible to c onsider them as the con ceptual majority of interconnected constituents. The aim of the work: to study main features of the formation of technogenically conditioned water ecosystems of small and medium river s due to anthropogenic influence of the aviation repair facilities. Methods: were used a biotesting method, a method of the complex wate r quality assessment, a substrate biological transformation model based on the law of non-linear mathematical model of Mono and Michaelis-Menten. The technogenic impact i ndex for every pollutant was calculated. Results: it was found the content of heavy metals, oil products, nitroge n, nitrite nitrogen, nitrate nitrogen in the surface water of the Nyvka and Irpin rivers. Investigated sampl es of the Nyvka water were of V water quality class and the Irpin water was of I V water quality class. Th e hydrochemical analyze of the Irpin river has shown that limitation factors affecting the water quality, cau se the disturbance of the self-remediation ability of the water ecosystem. Was shown changes of contaminan t concentration in the Irpin River current. Discussions : obtained results of the modeling of the Irpin water self-remediation from contaminants are represented that the constant for contamination agents such as n itrogen, nitrite nitrogen, nitrate nitrogen and Cu 2+ have negative values. The predominatin g negative values indicate, that in the aquatic environment self- remediation processes have not time to occur, as water is being very active contaminated from the mowings, neighboring agricultural lands.
Authors and Affiliations
Svitlana Madzhd, Yana Pysanko
Keywords
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- EP ID EP510336
- DOI 10.18372/2306-1472.76.1316
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