Functional water-insoluble polymers with ability to remove arsenic(V)

Rivas, Bernabé L.; Muñoz, Carla

doi:10.1007/s00289-009-0179-z

Cited by 17 publications

(10 citation statements)

References 12 publications

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“…The effect of the interfering ions on As(V) binding by the water-soluble polymer can be understood as being due to the competition between As(V) and other anions for binding sites on the polymer. The affinity of other anions to bind to the polymer is similar to the behavior that is observed with ion-exchange resin that contains ammonium groups when removing As(V) through the ion-exchange process [18]. Another way to explain the effect is that the electrical double layer is compressed around the polymer as the ionic strength increases, thus reducing the polymer's electrical potential.…”

Section: Effect Of Interfering Ions On the Retention Of As(v)mentioning

confidence: 81%

Ultrafiltration assisted by water-soluble poly(diallyl dimethyl ammonium chloride) for As(V) removal

et al. 2015

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Arsenic is a very toxic element that must be removed efficiently from aqueous streams. Among the most promising techniques used for the removal of arsenic are separation methods using membranes. In this study, a regenerated cellulose ultrafiltration (UF) membrane and a poly(diallyl dimethyl ammonium chloride) P(DADMAC) were coupled and used in combination to remove As(V) from an aqueous solution. The influences of pH, the polymer:As(V) molar ratio, and the presence of interfering ions such as chloride and sulfate were investigated in arsenic removal via the washing method. The efficient retention of arsenic was observed at pH 7 with a 5:1 polymer:As molar ratio and with an efficiency of approximately 85 % at Z = 10 for P(DADMAC). The maximum retention capacity of As(V) was determined by the enrichment method, and the results indicated that 194 mg of As(V) was removed per gram of polymer. Finally, using enrichment and washing methods sequentially, the sorption-desorption process and regeneration of P(DADMAC) were performed successfully.

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Section: Effect Of Interfering Ions On the Retention Of As(v)mentioning

confidence: 81%

Ultrafiltration assisted by water-soluble poly(diallyl dimethyl ammonium chloride) for As(V) removal

et al. 2015

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“…In particular, it was observed that polymers with quaternary amine groups were effective for removing As(V) during membrane-assisted studies [1][2][3][4][5][6][13][14][15]. Rivas et al [5] reported the successful removal of arsenic with various watersoluble polymers combined with ultra-filtration using (R) 4 N + X À groups.…”

Section: Introductionmentioning

confidence: 97%

“…Polymer-assisted removal processes have been extensively studied for the removal of arsenic using both soluble and insoluble polymers [1][2][3][4][5][6][13][14][15][16][17][18]. In particular, it was observed that polymers with quaternary amine groups were effective for removing As(V) during membrane-assisted studies [1][2][3][4][5][6][13][14][15].…”

Section: Introductionmentioning

confidence: 98%

“…In this respect, arsenic contamination in ground and surface waters is considered to be one of the major problems contributing to this shortage. Arsenic is a highly toxic element [1][2][3][4][5][6][7][8][9][10][11][12][13] that may cause cancer malignancies, vascular diseases, and non-malignant skin tumors [1]. The acceptable limit for arsenic in drinking water is 10 lg/L according to the World Health Organization (WHO) [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…Both traditional and innovative methods for arsenic removal have been successful, including polymer-enhanced ultrafiltration (still in the development stage) [2][3][4][5][6], adsorption, ion exchange, coagulation/filtration, and reverse osmosis [8].…”

Section: Introductionmentioning

confidence: 99%

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Crosslinked polyDADMAC gels as highly selective and reusable arsenate binding materials

Pirgalıoğlu

Özbelge

et al. 2015

Chemical Engineering Journal

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Metal complexation studies of amylopectin‐graft‐poly[(N,N‐dimethylacrylamide)‐co‐(acrylic acid)]: a biodegradable synthetic graft copolymer

Kolya

Tripathy

2015

Polymer International

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Synthesis of amylopectin‐graft‐poly[(N,N‐dimethylacrylamide)‐co‐(acrylic acid)] was carried out using solution polymerization technique with potassium persulfate as the initiator. The graft copolymer was characterized by measuring molecular weight using size exclusion chromatography, thermal analysis and Fourier transform infrared (FTIR) spectroscopy. The synthetic graft copolymer was used for the removal of some potentially toxic metal ions, Cu(II), Zn(II) and Ni(II), from their aqueous solutions. Various operating parameters like the amount of adsorbent, solution pH, contact time and temperature were studied. The adsorption data were well described by the pseudo‐second‐order and Langmuir isotherm models. Metal complexation studies were carried out experimentally using cyclic voltammetry and UV‐visible and FTIR spectroscopies. The metal complex structure was also studied theoretically using density functional theory with the Gaussian 09 program and the geometry of the complex structure was optimized. The metal complexation ability of the graft polymer was in the order Cu(II) > Ni(II) > Zn(II). Calculation of the various thermodynamic parameters was also done. The negative value of free energy change indicates the spontaneous nature of the adsorption. © 2015 Society of Chemical Industry

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Functional water-insoluble polymers with ability to remove arsenic(V)

Cited by 17 publications

References 12 publications

Ultrafiltration assisted by water-soluble poly(diallyl dimethyl ammonium chloride) for As(V) removal

Ultrafiltration assisted by water-soluble poly(diallyl dimethyl ammonium chloride) for As(V) removal

Crosslinked polyDADMAC gels as highly selective and reusable arsenate binding materials

Metal complexation studies of amylopectin‐graft‐poly[(N,N‐dimethylacrylamide)‐co‐(acrylic acid)]: a biodegradable synthetic graft copolymer

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