Removal of boron from SWRO permeate by boron selective ion exchange resins containing N-methyl glucamine groups

Increasing RO efficiency by chemical-free ion-exchange and Donnan dialysis: Principles and practical implications

“…other membrane technologies, ion exchange, …) ensures an optimal treatment of different water sources, from simple tap water to industrial wastewater. Ion exchange (IEX), a common and relatively cheap technology for the removal of unwanted ions from water (cations leading to water hardness, organics, boron, …), is sometimes coupled with reverse osmosis (RO) or nanofiltration (NF) for the production of drinking and/or process water (Jacob, 2007;Kabay et al, 2008;Baker, 2004). Mostly, IEX is used to posttreat the water for removal of remaining trace elements, upon production of ultrapure water.…”

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].…”

Integrated solution for boron removal from seawater using RO process and sorption-membrane filtration hybrid method

“…Stripping boron from the resin is relatively easy at pH less than about 1.0; therefore, relatively high acid concentrations of acid are required for the complete and rapid elution of the boric acid from BSR [19]. Recently, some studies on application of batch and column mode tests were carried out with boron selective ion exchange resins containing N-methyl glucamine groups for boron removal from model seawater and natural seawater RO permeate spiked with H 3 BO 3 [3,20].…”