Arsenic adsorption onto iron-chitosan composite from drinking water

MOspace/Manakin Repository

Breadcrumbs Navigation

Arsenic adsorption onto iron-chitosan composite from drinking water

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/4287

[-] show simple item record

dc.contributor.advisor Deng, Baolin en
dc.contributor.author Vasireddy, Dhanarekha en_US
dc.date.accessioned 2010-01-12T16:46:24Z
dc.date.available 2010-01-12T16:46:24Z
dc.date.issued 2006 en_US
dc.date.submitted 2005 Fall en
dc.identifier.other VasireddyD-032207-T3142 en_US
dc.identifier.uri http://hdl.handle.net/10355/4287
dc.description The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. en_US
dc.description Title from title screen of research.pdf file viewed on (May 20, 2007) en_US
dc.description Includes bibliographical references. en_US
dc.description Vita. en_US
dc.description Thesis (M.S.) University of Missouri-Columbia 2006. en_US
dc.description Dissertations, Academic -- University of Missouri--Columbia -- Civil engineering. en_US
dc.description.abstract To develop an inexpensive adsorbent, suitable for arsenic removal from drinking water, iron-chitosan based sorbents were selected. Chitosan is a biopolymer derived from chitin, a polysaccharide and is available commercially in the form of flakes. To be used in an adsorption system, chitosan should be made in the form of a bead. In this process, two types of beads were prepared 1) Iron-chitosan (CFeN), and 2) Iron-chitosan coated perlite (CFeN+Perlite). These beads were characterized using Scanning Electron Microscopy (SEM), Energy Dispersive x-ray Spectrometry (EDS) and X-ray Photoelectron Spectroscopy (XPS). The adsorption isotherm studies of arsenic on CFeN and CFeN+Perlite beads were determined using Langmuir model. The effect of pH and competing ions on arsenic removal for CFeN was determined. For CFeN adsorbent, high removals of arsenate were obtained at pH range 5.8-7.8, with maximum removal occurring around pH 5.8. Arsenite removal is also efficient with the maximum removal occurring around pH 8. From the isotherm studies, it was found that the maximum adsorption of arsenate and arsenite onto iron-chitosan coated perlite was almost half that of iron-chitosan. en_US
dc.language.iso en_US en_US
dc.publisher University of Missouri--Columbia en_US
dc.relation.ispartof 2005 Freely available theses (MU) en_US
dc.subject.lcsh Water -- Purification -- Adsorption en_US
dc.subject.lcsh Water -- Purification -- Arsenic removal en_US
dc.subject.lcsh Chitosan en_US
dc.title Arsenic adsorption onto iron-chitosan composite from drinking water en_US
dc.type Thesis en_US
thesis.degree.discipline Civil engineering en_US
thesis.degree.grantor University of Missouri--Columbia en_US
thesis.degree.name M.S. en_US
thesis.degree.level Masters en_US
dc.identifier.merlin .b58539050 en_US
dc.identifier.oclc 132692601 en_US
dc.relation.ispartofcommunity University of Missouri-Columbia. Graduate School. Theses and Dissertations. Theses. 2005 Theses


This item appears in the following Collection(s)

[-] show simple item record