Microfiltration of microparticulate boron adsorbent suspensions in submerged hollow fibre and capillary modules

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

“…The more extensive studies on the use of submerged membrane modules were conducted by Schlosser et al [30][31][32]. The authors found that the suspension of the same particles as applied at our study can be concentrated in microfiltration unit up to 24 mass%.…”

“…They show the importance of the proper selection of method for suspension concentration. Their process simulation for plant of 1000 m 3 /h capacity is as follows [32]: microparticular sorbent flow -54.3 kg/h (sorbent is circulation between two loops), chemical consumption -0.97 mol/m 3 of HCl and 0.19 mol/m 3 of NaOH. The total power input for MF pumps and air blower was estimated at 0.0181 kWh/m 3 .…”

Utilization of geothermal water as irrigation water after boron removal by monodisperse nanoporous polymers containing NMDG in sorption–ultrafiltration hybrid process

“…The sorption-membrane filtration hybrid method was especially tested for boron removal from geothermal water and seawater extensively [16][17][18][19][20][21][22][23][24][25]. Boron sorption was carried out by using commercially available ground boron selective chelating ion exchange resins.…”

Microfiltration of micro-sized suspensions of boron-selective resin with PVDF membranes

“…It was also reported [18], [19] and [20] that the consumption of chemicals and energy with AMF are much lower compare to fixed-bed ion exchange treatment. Although numerous papers have been published on the AMF process [11], [12], [13], [14], [15], [16], [17], [18] and [19] they focused mainly at efficiency of boron removal with the boron-selective resins from different feeds, however the studies on how membrane pore size, pH and ionic strength of the feed affect the membrane flux and separation of boron-saturated resins are still rare [20] and [21]. Ondercova et al [20] and Blahusiak at al.…”

“…Ondercova et al [20] and Blahusiak at al. [21] used the tubular ceramic membranes of 0.1 μm pore size to simulate and concentrate suspensions of Dowex XUS resin with the mean particle size of 4.7 μm at suspension concentrations of 0.0015 to 20 wt.%, and different crossflow velocities and operating pressures. However the effect of pH and ionic strength of the feed on MF separation of the resin suspension as well as the analysis of surface morphology of the membranes before and after filtration have been not considered.…”