Removal of phosphate from water by activated carbon fiber loaded with lanthanum oxide

Phosphorus Removal From Aqueous Solution By Adsorption Onto La-modified Clinoptilolite

“…[ [27][28] This indicated that La(OH) 3 was loaded onto the surface of modified clinoptilolite, which was also manifested with the presence of the lanthanum hydroxide particles from the XRD pattern of modified clinoptilolite. By comparing the FT-IR spectra of Figure. 4 (c) with 4 (b), the strong absorption peak at about 1,050 cm 1 was attributed to the typical characteristic of the asymmetric stretch vibration of P-O of PO 4 3 group on modified clinoptilolite after adsorption phosphate, [29][30] so direct evidence of PO 4 3 in modified clinoptilolite after adsorption phosphate was obtained.…”

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].…”

Agricultural By-Products for Phosphorous Removal and Recovery from Water and Wastewater: A Green Technology

“…The chemical precipitation is often prone to high chemical expense, effluent neutralization requirement, inadequate efficiency for dilute P solutions, etc. (Kumar et al 2010;Zhang et al 2011;Mallampati and Valiyaveetttil 2013). Similarly, the biological process associated with activated sludge systems suffers from drawbacks, such as low removal efficiency (≤ 30%), complicated operation, high energy consumption and footprint (Ning et al 2008;Peleka and Deliyanni 2009).…”

“…Similarly, the biological process associated with activated sludge systems suffers from drawbacks, such as low removal efficiency (≤ 30%), complicated operation, high energy consumption and footprint (Ning et al 2008;Peleka and Deliyanni 2009). On the other hand, adsorption is proven to be affordable, effective and best suited for low levels of PO4 3- Zhang et al 2011). Notably, this method is believed to have an advantage when used for P recovery, owing to the selective P adsorption capability (Loganathan et al 2014).…”