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primary topic: Arsenic(III) immobilization on rice husk silica

Arsenic(III) immobilization on rice husk silica
type: AcademicArticle
type: Article
abstract: Silica was prepared by burning rice husk in a muffle furnace at 500C and immobilization (adsorption) of As(III) by the rice husk silica from aqueous solution was examined. Batch adsorption test showed that extent of As(III) adsorption depended on initial As(III) concentration, contact time and pH. Equilibrium adsorption was attained in 180 min, with maximum adsorption occurring at pH 8. Equilibrium adsorption data were well described by the Langmuir and Freundlich isotherm models. Langmuir constants Q° and b were 1.89 and 0.1, and Freundlich constants K f and 1/n were 0.17 and 0.9, respectively. Adsorption of As(III) by rice husk silica followed pseudo-second-order kinetics. Rice husk silica is effective in the adsorption of As(III) from water and is a potentially suitable filter medium for removing As(III) from groundwater at wells or in households. © 2011 IEEE.
date: 2011
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ConferenceItemEPrint
is part of: repository

2011 National Postgraduate Conference - Energy and Sustainability: Exploring the Innovative Minds, NPC 2011
type: Collection

S.A.B.A. Wahab
type: Person
given name: S.A.B.A.
family name: Wahab

M. Chaudhuri
type: Person
given name: M.
family name: Chaudhuri

T. Khan
type: Person
given name: T.
family name: Khan

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primary topic: Arsenic(III) immobilization on rice husk silica