Removal of arsenic(III) from water by magnetic binary oxide particles (MBOP): Experimental studies on fixed bed column.

Title Removal of arsenic(III) from water by magnetic binary oxide particles (MBOP): Experimental studies on fixed bed column.
Authors R.M. Dhoble; P.Reddy Maddigapu; S.S. Rayalu; A.G. Bhole; A.S. Dhoble; S.R. Dhoble
Journal J Hazard Mater
DOI 10.1016/j.jhazmat.2016.09.075
Abstract

Magnetic binary oxide particles (MBOP) were prepared by template method using chitosan in the laboratory for the removal of As(III) from water. The prepared MBOP has super paramagnetic property which is sufficient for magnetic separation. Column study was performed at two different flow rates of 2.0ml/min and 5.0ml/min and comparison was made with regenerated MBOP, commercial activated carbon and commercial activated alumina. It is observed that fresh MBOP has higher breakthrough time and capacity than regenerated MBOP by a factor of 1.25 and 1.37 respectively. In Logit method, the values of K (adsorption rate constant) and N (adsorption capacity coefficient) were obtained as 0.2066 (L/mgh) and 1014(mg/L) for 5.0ml/min flow rate. All the drinking water parameters are within the limit of BIS 10500-2012. Toxicity characteristic leaching procedure (TCLP) and semi dynamic tests were performed for the mix ratios of 01:02:01, 01:02:05 and 01:02:10 and were found safe for the disposal.

Citation R.M. Dhoble; P.Reddy Maddigapu; S.S. Rayalu; A.G. Bhole; A.S. Dhoble; S.R. Dhoble.Removal of arsenic(III) from water by magnetic binary oxide particles (MBOP): Experimental studies on fixed bed column.. J Hazard Mater. 2017;322(Pt B):469478. doi:10.1016/j.jhazmat.2016.09.075

Related Elements

Arsenic

33 As 74.921600000 Arsenic

See more Arsenic products. Arsenic (atomic symbol: As, atomic number: 33) is a Block P, Group 15, Period 4 element with an atomic radius of 74.92160. Arsenic Bohr ModelThe number of electrons in each of arsenic's shells is 2, 8, 18, 5 and its electron configuration is [Ar] 3d10 4s2 4p3. The arsenic atom has a radius of 119 pm and a Van der Waals radius of 185 pm. Arsenic was discovered in the early Bronze Age, circa 2500 BC. It was first isolated by Albertus Magnus in 1250 AD. In its elemental form, arsenic is a metallic grey, brittle, crystalline, semimetallic solid. Elemental ArsenicArsenic is found in numerous minerals including arsenolite (As2O3), arsenopyrite (FeAsS), loellingite (FeAs2), orpiment (As2S3), and realgar (As4S4). Arsenic has numerous applications as a semiconductor and other electronic applications as indium arsenide, silicon arsenide and tin arsenide. Arsenic is finding increasing uses as a doping agent in solid-state devices such as transistors.

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Oxides
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