Water‐Soluble Polyelectrolytes with Ability to Remove Arsenic

Abstract

International audienc

Crosslinked polyDADMAC gels as highly selective and reusable arsenate binding materials

“…Most of the successful arsenic removal processes reported so far rely on the ion exchange mechanism [5,19]. This can be ascribed to multi-negative charges of arsenious and arsenite species.…”

“…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. Linear poly(diallyldimethylammonium chloride) (DAD-MAC) is included among the polymers with proven effectiveness for removing As(V).…”

“…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].…”

“…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].…”

“…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].…”