According to a rece study by researchers at the Faculty of Environme of Tehran University, led by Dr. Abdolreza Karbassi, Professor of Environmeal Engineering, in collaboration with Dr. Toraj Nasrabadi, Associate Professor of Environmeal Manageme, the University of Tehran’s Faculty of Environme, has taken an effective step in understanding the process.
Dr. Abdolreza Karbassi, head of the research group, poied out that the study examined the role of oxidation-decrease (ORP) and salinity in the process of flexion (clotting) and heavy metals behavior in the Polrood River and the Caspian Sea, saying: In the laboratory, it examines the effect of orP and salinity on the flexion of lead metals (PB), zinc (zn), nickel (Ni), copper (CU) and manganese (MN).
Professor of the Departme of Environmeal Engineering added: The results showed that in normal conditions, ZN had the highest elimination at 4.9 % and PB at 4.9 %. Increasing ORP led to significa changes in metal behavior, with the Flexolation rate of PB, MN and Ni rose by 4.3, 4.3 and 4.9 perce, respectively, while ZN and CUs experienced a decrease of 4.3 and 4.9 perce, respectively.
He said that these differences show that salinity and orp have a mutual effect on the flexion process and that each metal’s behavior depends on its chemical properties, adding that the mobility of metals in sedimes was also affected by orp and pH. Increasing ORP or reducing pH increased metal mobility, and the arrangeme of mob> ni> zn> pb> CU was observed.
Professor of the Faculty of Environme emphasized: Evaluation of metal mobility risk (RAC) showed that the MN is in the highest mobility in the average risk, while the CU showed the least mobility. Also, the increase in ORP led to an increase in RAC values for all metals, indicating an increase in the likelihood of their release in oxidation.
Poiing out that this study emphasizes the importance of ORP and salinity in corolling the fate of heavy metals in Masibi environmes, Karbassi said: The findings show that changes in oxidation-decrease conditions can have a direct impact on the efficiency of natural processes such as flexulation.
“This information is very valuable for managing metal pollution in the measures and designing effective environmeal refining strategies,” said the head of the research team. The results of this study could be used as a basis for future research on metal behavior in complex water ecosystems.
“The study also emphasizes the need to better understand the impact of environmeal factors such as DOM and sedimes on metal behavior and can help develop more precise models to predict metal mobility and toxicity in water environmes and pave the way for purposeful manageme strategies and to improve their natural manageme strategies,” he said.
(tagstotranslate) Abdolreza Karbassi (T) Caspian Sea (T) Scieific Research (T) University of Tehran
