Phosphate adsorption on lanthanum hydroxide-doped activated carbon fiber

Key factors for optimum performance in phosphate removal from contaminated water by a Fe–Mg–La tri-metal composite sorbent

“…Comparing to other lanthanum based sorbents such as lanthanum loaded granular ceramic [20] and lanthanum hydroxide [21], our prepared sorbent required far lower dosage to obtain the nearly 100% removal efficiency. The corresponding adsorption capacity of phosphate onto the Fe-Mg-La sorbent can reach 66.1 mg/g, which is still higher than the maximum adsorption capacity of most reported sorbents at their optimal conditions [9,11,[18][19][20]10,24]. The sorbents exhibit very high application potential in the phosphate removal from natural water.…”

“…A few lanthanum-typed sorbents such as lanthanum hydroxide and hydroxyl-iron-lanthanum doped activated carbon fiber were developed for phosphate removal [9,10]. In addition, iron and magnesium were also used to prepare sorbent for effective removal of phosphate [11,12].…”

Simultaneous crystallization of phosphate and potassium as magnesium potassium phosphate using bubble column reactor with draught tube

“…Adsorption methods are promising for P removal from low-phosphate concentration wastewater [6]. In the last decade, many studies of P removal have been reported, and many adsorbents have been used, e.g., lanthanum-hydroxide-doped activated carbon [7], lanthanumoxide-loaded activated carbon [8], aluminum hydroxide [9], aluminum iron oxide [10], iron oxide [11], and silica [12]. In recent years, the development of adsorbents with high P-adsorption capacities has been pursued for non-toxic and environmentally friendly methods of P removal [13].…”

Granulation of Boehmite without a Binder and its Capacity for Phosphate Adsorption in Aqueous Solution

“…A comparison of the adsorption capacities observed in this work with those from other studies is given in Table 2 ( Li et al, 2006;Mezenner and Bensmaili 2009;Köse and Kıvanç, 2011;Zhang et al, 2012;Zhao et al, 2012b). The maximum adsorption capacity of phosphate onto GA was 36.9 mg/g (pH: 3.22), and the maximum adsorption capacities of phosphate onto various other adsorbents were in the range of 2.0 -63.2 mg/g (pH: 5 -7).…”