Assessment of different nanofiltration and reverse osmosis membranes for simultaneous removal of arsenic and boron from spent geothermal water

Jarma, Yakubu A.; Karaoğlu, Aslı; Tekin, Özge; Baba, Alper; Ökten, Hatice Eser; Tomaszewska, Barbara; Bostancı, Kamil; Arda, Müşerref; Kabay, Nalan

doi:10.1016/j.jhazmat.2020.124129

Cited by 47 publications

(11 citation statements)

References 50 publications

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“…We also investigated the removal of trace boron using the fabricated N-TFN membranes. Boric acid (H 3 BO 3 ) is a trace pollutant widely present in seawater, groundwater, and many other water sources 48 . Low boron removal efficiency by membranes is largely due to the small size and neutral charge of H 3 BO 3 49 .…”

Section: Resultsmentioning

confidence: 99%

Microporous organic nanotube assisted design of high performance nanofiltration membranes

et al. 2022

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Microporous organic nanotubes (MONs) hold considerable promise for designing molecular-sieving membranes because of their high microporosity, customizable chemical functionalities, and favorable polymer affinity. Herein, we report the use of MONs derived from covalent organic frameworks to engineer 15-nm-thick microporous membranes via interfacial polymerization (IP). The incorporation of a highly porous and interpenetrated MON layer on the membrane before the IP reaction leads to the formation of polyamide membranes with Turing structure, enhanced microporosity, and reduced thickness. The MON-modified membranes achieve a remarkable water permeability of 41.7 L m−2 h−1 bar−1 and high retention of boron (78.0%) and phosphorus (96.8%) at alkaline conditions (pH 10), surpassing those of reported nanofiltration membranes. Molecular simulations reveal that introducing the MONs not only reduces the amine molecule diffusion toward the organic phase boundary but also increases membrane porosity and the density of water molecules around the membrane pores. This MON-regulated IP strategy provides guidelines for creating high-permeability membranes for precise nanofiltration.

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Section: Resultsmentioning

confidence: 99%

Microporous organic nanotube assisted design of high performance nanofiltration membranes

et al. 2022

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“…The large reduction of As concentrations by media and membrane filtration can be explained by the relatively large amount of adsorbent media with respect to the influent As concentration, and the high As removal efficiency of membranes (i.e., 71.53% for NF90 and 98.34% for BWRO30). Effective As removal by NF and BWRO membranes is in agreement with the previously reported results. , After Grsand filtrate underwent NF, initial total As concentrations in the permeate were 0.05 ± 0.07 μg/L, increasing to 0.18 ± 0.07 μg/L at 90% recovery. After Grsand filtrate underwent BWRO, initial total As concentrations of 0.03 ± 0.04 μg/L slightly decreased to 0.02 ± 0.02 μg/L at 90% recovery.…”

Section: Resultsmentioning

confidence: 85%

“…Effective As removal by NF and BWRO membranes is in agreement with the previously reported results. 52,53 After Grsand filtrate underwent NF, initial total As concentrations in the permeate were 0.05 ± 0.07 μg/L, increasing to 0.18 ± 0.07 μg/L at 90% recovery. After Grsand filtrate underwent BWRO, initial total As concentrations of 0.03 ± 0.04 μg/L slightly decreased to 0.02 ± 0.02 μg/L at 90% recovery.…”

Section: Methodsmentioning

confidence: 99%

Evaluation and Optimization of Treatment Technologies Treating Groundwater from the Arbuckle-Timbered Hills Aquifer in Oklahoma

Jung

Menk

Watts³

et al. 2021

ACS EST Water

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Modern groundwater treatment processes often consist of pretreatment, membrane filtration, and disinfection steps. In order to achieve maximum water production and quality at the lowest possible production cost, treatment trains should be rationally designed based on contaminants present in the raw water and the target application. In this study, synthetic and natural groundwater (obtained from the Arbuckle-Timbered Hills Aquifer in SW Oklahoma) containing elevated concentrations of fluoride (F), arsenic (As), iron (Fe), and total dissolved solids (TDS) were treated using a range of water treatment trains, with the goal of producing drinking water. The impact of coagulant (Al 2 (SO 4 ) 3 •18H 2 O, aluminum sulfate) dosage, filtration media (quartz sand, manganese greensand, and activated alumina), and membranes (i.e., nanofiltration (NF) and brackish reverse osmosis) were investigated in terms of removal efficiency of target contaminants. Then, a water reuse model was employed to determine the optimal treatment train configuration and blending regime that maximizes quality while minimizing treatment cost. The water reuse model determined that the optimal treatment train consists of aluminum sulfate coagulation, activated alumina filtration, and NF and has a capability to produce potable water that meets drinking water guidelines at a production cost of $0.212/m 3 .

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“…The removal of arsenic(V) from waters, wastewaters, or generally speaking, aqueous solutions, is a topic of the utmost importance for the scientific community though there are few technologies proposed for this task (Alka et al, 2021;Weerasundara and Bundschuh, 2021). Some recent investigations describe the use of micro-structured carbon-based (Islam et al, 2021) and modified incinerated sewage sludge ash (Gao et al, 2021) adsorbents; ion exchange using various resins (Dadakhanov et al, 2021), resin-supported nano-hydrated zirconium oxide (Deng et al, 2021), and an electrochemical-ion exchange hybrid method (Rathi et al, 2021); various membrane processes (Moreira et al, 2021;Sherugar et al, 2021;Rojas-Challa et al, 2021;Jarma et al, 2021;Lopez et al, 2021); and solvent extraction using a Triton X nonionic surfactant-choline chloride ionic liquid-water mixture (Silva et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

The removal of toxic metals from liquid effluents by ion exchange resins. Part XVII: Arsenic(V)/H+/Dowex 1x8

Escudero

2022

revmetal

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The performance of anionic exchange resin Dowex 1x8 in the removal of arsenic(V) from aqueous solutions was investigated. Batch experimentation was carried out under different variables, including, the stirring speed applied on the system, the pH of the aqueous solution, resin dosage and temperature. Due to the characteristic speciation of arsenic(V) in aqueous phases, the removal of this element from the solution is negligible at highly acidic or alkaline pH values, but it is possible at the aqueous pH range of 4-9, thus, both HAsO42- and H2AsO4- species are loaded onto the resin. At the above pH range, arsenic(V) uptake is exothermic. Different models are fitted to the experimental values in order to gain knowledge about this ion exchange system: rate law, kinetics and solute loading onto the resin. This loading is compared against the yielded using non-functionalized multiwalled carbon nanotubes. The elution step is investigated using acidic solutions (HCl medium) as eluent, from the eluted solutions, arsenic(V) can be efficiently stabilized as ferric or calcium arsenates.

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Assessment of different nanofiltration and reverse osmosis membranes for simultaneous removal of arsenic and boron from spent geothermal water

Cited by 47 publications

References 50 publications

Microporous organic nanotube assisted design of high performance nanofiltration membranes

Microporous organic nanotube assisted design of high performance nanofiltration membranes

Evaluation and Optimization of Treatment Technologies Treating Groundwater from the Arbuckle-Timbered Hills Aquifer in Oklahoma

The removal of toxic metals from liquid effluents by ion exchange resins. Part XVII: Arsenic(V)/H+/Dowex 1x8

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