Removal of boron from seawater by selective ion exchange resins

Boron removal from aqueous solution by direct contact membrane distillation

“…Ion-exchange process in which N-methyl glucamine type resins such as Amberlite XE 243, Amberlite JRN-78, Amberlite IRA743, Diaion CRB01, Diaion CRB02, Wofatit MK51 and Purolite S108 have been used is the most extensively studied and reported in the literature [17][18][19][20][21][22][23][24][25]. As the most efficient method, ion-exchange process can even remove boron to levels of <50 g/L, far below the required limits [26].…”

Synthesis of Bifunctional Poly(Vinyl Phosphonic Acid-&lt;i&gt;co&lt;/i&gt;-glycidyl Metacrylate-&lt;i&gt;co&lt;/i&gt;-divinyl Benzene) Cation-Exchange Resin and Its Indium Adsorption

“…The highly selective bifunctional poly(VPA-co-GMAco-DVB) cation exchangers were synthesized by suspension polymerization [10,[11][12][13]. Table 1 and Figure 1 show the synthesis conditions, the polymerization scheme and the functionalization of the poly(VPA-co-GMAco-DVB) cation exchangers with iminodiacetic acid, respectively.…”

“…However, the development of a highly selective ion exchanger is needed because the concentration of indium in seawater is low [8][9][10][11][12].…”

Effect of Dissolved Silica on Immobilization of Boron by Magnesium Oxide

“…Boron removal has been extensively studied in the field of wastewater treatment, and several methods such as chemical precipitation [7], adsorption [8], extraction [9], biological method [10] are known. As immobilization mechanisms for boron by magnesium oxide, precipitation of magnesium borates [11] and formation of an inner-sphere complex on the surface of brucite [12] have been reported.…”