Sorption Behavior of Phosphate on an MSWI Bottom Slag and Sewage Sludge Co-sintered Adsorbent

Phosphate adsorption on metal oxides and metal hydroxides: A comparative review

“…Metal oxides Acids E, I, C 70.29%-85% desorption efficiency Porous clay (Yang et al 2013), lanthanum(III) loaded granular ceramic (Chen et al 2012) Alkalis E, I 60%-93% desorption efficiency; regenerate 3-8 times Zr(IV) loaded okara (Nguyen et al 2014), Fe 3 O 4 nanoparticles (Tu et al 2015), NiFe 2 O 4 (Jia et al 2013), Calcium-sepiolite (Yin et al 2011) Salts E, I, C 4.98%-97% desorption efficiency; regenerate 7-10 times TiO 2 loaded zeolite (Alshameri et al 2014), bottom slag and sewage sludge (Ge et al 2013), palygorskites (Ye et al 2006), Cu-chelating resin (Jiang et al 2013) Mixture of salts and alkalis E, I Regenerate 7 times La(III)-modified zeolite (Ning et al 2008), activated alumina (Urano et al 1992 (Tian et al 2009), zeolite (Li et al 2009a), goethite and akaganeite (Chitrakar et al 2006a), hydrous niobium oxide (Rodrigues and da Silva 2009) Note: E, electrostatic; I, ion exchange; L, Lewis acid-base interaction; C, chemical precipitation.…”

“…), cobalt(Ogata et al 2015) Multi-Langmuir Ferric sludge(Song et al 2011) Redlich-Peterson Iron oxide tailings(Zeng et al 2004) Metal hydroxides Langmuir Iron-activated carbon fiber(Zhou et al 2012), La-lignocellulosic(Shin et al 2005), Fe(III)-silica(Huang et al 2013), waste alum sludge (Babatunde and Zhao 2010), Al-and iron-montmorillonite(Zhu et al 2009) Freundlich Zr(IV)-chitosan (Sowmya and Meenakshi 2014), zeolite(Li et al 2009a), aluminum oxide hydroxide(Tanada et al 2003) Freundlich-Langmuir Fe(III)/Cr(III) hydroxide(Namasivayam and Prathap 2005), hydrated metal oxides-anionic exchange media(Acelas et al 2014)Table 4. The adsorption capacities and contact time of metal (hydr)oxides.AdsorbentAdsorption capacity (mg P/g) Contact time (h) Adsorbents and referencesMetal oxidesSingle metal adsorbents (0.9-48) 0.25-40 Lanthanum-activated carbon fiber(Liu et al 2011), iron-natural and engineered sorbents(Boujelben et al 2008), aluminum-mesoporous silicates(Shin et al 2004), ZrO 2(Liu et al 2008) Hybrid metal adsorbents (3.5-345) 0.25-40 Manganese-aluminum oxide(Wu et al 2012), Ferric sludge(Song et al 2011), activated red mud and fly ash(Li et al 2006), bottom slag and sewage sludge(Ge et al 2013) Metal hydroxides Single metal adsorbents (7.9-111) 0.02-20 Fe-skin split waste(Huang et al 2009), cerium-fibrous protein(Deng and Yu 2012), Zr(IV)-chitosan (Sowmya and Meenakshi 2014) Hybrid metal adsorbents (9.8-415.2) 0.02-20 Cu or Fe-nanoporous sorbents(Chouyyok et al 2010), Fe(III)/Cr(III) hydroxide…”