Removal of iron ions from industrial copper raffinate and electrowinning electrolyte solutions by chemical precipitation and ion exchange

A Review on Heavy Metal Ions and Containing Dyes Removal Through Graphene Oxide‐Based Adsorption Strategies for Textile Wastewater Treatment

“…Chemical precipitation method is used to treat the wastewater effluent because it is affordable and handy to operate [119,120] . It includes sulphide precipitation and hydroxide precipitation.…”

Adsorption Thermodynamics and Kinetics of Resin for Metal Impurities in Bis(2-hydroxyethyl) Terephthalate

“…Interestingly, an ion exchange resin is considered as the effective metal ion removal from water and industrial wastewater sources [29]. The ion exchange resins are insoluble species in organic and aqueous solution, bearing charged functional group carrying mobile ion by covalent interaction and cross-linked polymer matrix structure [30], which provides the more surface area to enhance the removal efficiency [31].…”

Biorremoción de iones de hierro de la solución de refinado de cobre utilizando “semilla” de jarosita biosintética promovida por Acidithiobacillus ferrooxidans

“…According to the previous literature, metals are immobilized in jarosite by a series of precipitation, co-precipitation and adsorption reactions (Eftekhari et al, 2020) Izadi et al (2017 investigated the removal of iron by chemical precipitation and reported that the iron removal efficiency was greater with jarosite precipitation (∼70%) compared to hydroxide (∼20%). Compared to the studies of Izadi et al (2017), this study showed that iron removal by raffinate solution with the combined effects of biosynthetic jarosite seeds and A. ferrooxidans is much more efficient (∼72%) than the chemical precipitation method. Florence et al (2016) inspected the iron removal from acid mine drainage using Fe-oxidizing Ferrovum myxofaciens and reported that the average iron removal rate is 67%.…”

“…Investigates showed cations like nickel, zinc, copper, cobalt, can be incorporated into jarosite crystals; therefore, some copper ions in solution could precipitate with iron but would be less than co-precipitation that happens with hydroxide precipitation (Dutrizac and Monhemius, 1986;Izadi et al, 2017). This method has some advantages like simplicity, low-cost operation, and protection of equilibrium between sulfuric acid and alkali ions (Gan et al, 2017).…”

“…This method has some advantages like simplicity, low-cost operation, and protection of equilibrium between sulfuric acid and alkali ions (Gan et al, 2017). Several studies are performed on the removal of different ions in solutions by using chemical precipitation (Pogliani and Donati, 2000;Wang et al, 2006;Gramp et al, 2008;Gaikwad and Gupta, 2008;Nurmi et al, 2009;Albrecht et al, 2011;Lin et al, 2016;Gan et al, 2017;Izadi et al, 2017;Alguacil, 2019) However the lower-cost biological techniques are limited.…”