Metal Pollution Management Review in River Improvement – | Iranian and world news

According to a recent study by researchers at the Faculty of Environment of Tehran University, led by Dr. Abdolreza Karbassi, Professor of Environmental Engineering, in collaboration with Dr. Toraj Nasrabadi, Associate Professor of Environmental Management, the University of Tehran’s Faculty of Environment, has taken an effective step in understanding the process.

Dr. Abdolreza Karbassi, head of the research group, pointed 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 Department of Environmental 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 significant changes in metal behavior, with the Flexolation rate of PB, MN and Ni rose by 4.3, 4.3 and 4.9 percent, respectively, while ZN and CUs experienced a decrease of 4.3 and 4.9 percent, 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 sediments was also affected by orp and pH. Increasing ORP or reducing pH increased metal mobility, and the arrangement of mob> ni> zn> pb> CU was observed.

Professor of the Faculty of Environment 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.

Pointing out that this study emphasizes the importance of ORP and salinity in controlling the fate of heavy metals in Masibi environments, 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 environmental 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 environmental factors such as DOM and sediments on metal behavior and can help develop more precise models to predict metal mobility and toxicity in water environments and pave the way for purposeful management strategies and to improve their natural management strategies,” he said.