The possibility of the neutralisation and precipitation of heavy metals in industrial wastewater from oil emulsion processing
Year: 2025
Type: article
Abstract: Oil emulsions are systems of immiscible liquids in which one liquid is dispersed in the other in the form of small droplets.Usually, one of the phases is water, while the other is a liquid immiscible with water, called the oil phase.Due to its origin, the phase separation process in the emulsion results in a separated oil phase and the generation of post-process wastewater.In such industrial effluents, heavy metal ions are very often present in high concentrations and need to be removed.This paper presents a method for the neutralisation and precipitation of heavy metals from industrial wastewater (after emulsion processing) using precipitating agents and mineral flocculants.The research carried out focused on determining the possibility of effective reduction of heavy metals using two concentrations of precipitating agents from the sodium polysulphide group (0.2 and 1.0 ml/l) and two concentrations of mineral flocculants from the aluminosilicate group (0.5 and 2.0 g/l).A high degree of reduction of the analysed heavy metals, i.e.Cd, Ni, Cr, Pb, Zn, Cu, was achieved.
Authors: Aleksandra Chrapczyńska, Magdalena Chandzlik, Aleksandra Kosior, Karolina Nikiel, Anna Puchalik, Dariusz Szufłat, Mariusz Jurzak, Łukasz Żoczek, Klaudiusz Grübel
Institution: University of Bielsko-Biała
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $330
OpenAlex ID: W4409438403