Optimization of phosphate removal from drinking water with activated carbon using response surface methodology (RSM)

An investigation of the phosphate removal mechanism by MgFe layered double hydroxides

“…However, this approach is only feasible on large wastewater treatment plants due to cost (Huang et al, 2011). For this reason, recovery of phosphate from wastewater by adsorbents with a high phosphate affinity such as activated alumina (Genz et al, 2004;Xie et 3 al., 2005), calcite (Karageorgiou et al, 2007;Li et al, 2017;Liu et al, 2012), zirconium hydroxide (Chitrakar et al, 2006;Johir et al, 2016), activated carbon (Kumar et al, 2010;Mehrabi et al, 2016), iron oxide (Choi et al, 2016;Yoon et al, 2014) and layered double hydroxides (LDH) (Chitrakar et al, 2005;Das et al, 2006;Liu et al, 2019;Luengo et al, 2017;Lundehøj et al, 2019b;Seida and Nakano, 2002) has been investigated. Among these adsorbents, LDH are intensively studied due to their favorable properties such as high surface area, basicity, anion exchange properties and positive surface charge.…”