Galvanik ishlab chiqarish oqova suvlaridagi og‘ir metall ionlari: ekologik xavfi va tozalash usullari

Abstract

In this thesis, the composition of wastewater generated in galvanic production processes, the impact of heavy metal ions found in them on the environment and human health, and methods of wastewater treatment are analyzed. As a result of the use of metals such as copper, nickel, chromium, zinc, lead, cadmium, tin, silver and gold in galvanic processes, industrial wastewater of various composition is produced. Especially high concentrations of chromium, cadmium, lead and nickel ions are ecologically dangerous. Neutralization, chemical precipitation, sorption, ion exchange and other physicochemical methods can be used for effective wastewater treatment.