A statistical experiment design approach for arsenic removal by coagulation process using aluminum sulfate

Arsenic removal by nanoparticles: a review

“…Arsenic is most effectively removed or stabilized when it is present in the arsenate form (Jekel 1994). The technologies for arsenic removal usually include the following processes: coagulation-filtration (Khan et al 2002;Wickramasinghe et al 2004;Bilici Baskan and Pala 2010;Mólgora et al 2013), membrane separation (Ning 2002;Shih 2005;Pal et al 2014), ion exchange (Flicklin 1983;Katsoyiannis and Zouboulis 2002;Tresintsi et al 2014), and adsorption (Lin and Wu 2001;Zeng 2003;Chammui et al 2014). Among these methods, adsorption offers many advantages including simple and stable operation, easy handling of waste, absence of added reagents, compact facilities, and generally lower operation cost (Akin et al 2012).…”

Speciation of ultra-trace amounts of inorganic arsenic in water and rice samples by electrothermal atomic absorption spectrometry after solid-phase extraction with modified Fe3O4nanoparticles

“…The effect of sample volume on the recovery of As(V) ions was studied by applying the general extraction procedure to 25 were obtained for sample volumes in the range of 25-200 mL. Therefore, the volume of 200 mL was selected for subsequent experiments.…”

“…However, except for highly contaminated samples, direct determination of ultra-trace levels of As is limited due to very low concentration. A number of separation and preconcentration techniques involving solid-phase extraction (SPE) [21,22], liquid-liquid extraction [23], cloud-point extraction [24], and co-precipitation [25] have been proposed to overcome this problem.…”

Simultaneous removal of As(III) and As(V) from wastewater by co-precipitation using an experimental design approach

“…(2015) [1][2][3][4][5][6][7][8][9][10][11][12] www.deswater.com doi: 10.1080/19443994.2015.1079802 or coagulation [11][12][13][14], adsorption [15][16][17][18], membrane filtration [19], and ion exchange [20][21][22]. Co-precipitation allows for decreases in turbidity and color elimination from wastewater and also effective removal of high degrees of arsenic contaminants, with an added benefit of being applicable to large-scale industrial processes.…”