EVALUAREA, ÎN BAZA PRODUSELOR DE ACTIVARE ALE OXIGENULUI, A POLUĂRII ŞI A AUTOPURIFICĂRII PRIN PROCESE REDOX A UNOR APE NATURALE

Elena BUNDUCHI, Viorica GLADCHI Universitatea de Stat din Moldova

Аннотация

ASSESSMENT OF THE POLLUTION AND SELF-PURIFICATION THROUGH OXYGEN ACIVATORS PRODUCTS OF SOME NATURAL WATERS

In this work we present the assessment of pollution and water self-purification process supported by H2O2 and OH radicals for the year 2019. The monitored objects were the Nistru river, its tributaries, the Răut and the Ichel rivers, also the confluence with the Nistru river, and the two accumulation lakes, the Ghidighici and the Dănceni in the Nistru river basin.

Our results show the low concentrations or lack of H2O2 and high concentrations of the compounds which stops the self-purification chain-processes through OH radicals. This can be explaned by a constant consumption of the oxygen activation products in the self-purification processes of monitored natural waters.

Keywords: oxygen, hydrogen peroxide, hydroxyl radicals, redox process, self-autopurification, the Dniester River, tributary, lakes.