Article

Influence of diatomite microstructure on its adsorption capacity for Pb(II)

Snežana NenadovićVinca Institute of Nuclear Sciences, Laboratory for Materials Sciences, BelgradeMiloš NenadovićVinca Institute of Nuclear Sciences, Laboratory for Atomic Physics, BelgradeRenata KovačevićInstitute for Mining and Metallurgy, Laboratory for ICP, BorLjiljana MatovićVinca Institute of Nuclear Sciences, Laboratory for Materials Sciences, BelgradeBranko MatovićVinca Institute of Nuclear Sciences, Laboratory for Materials Sciences, BelgradeZoran JovanovićVinca Institute of Nuclear Sciences, Laboratory of Physics, BelgradeJ. Novakovic-GrbovicVinca Institute of Nuclear Sciences, Belgrade

Science of Sinteringjournal2009en

ABI

Abstract

The effect of microstructural changes caused by mechanical modification on adsorption properties of diatomite samples were investigated. The microstructure has been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM) while the degree of metal adsorption was evaluated by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP AES). The results show that metal sorption capacity of diatomite is considerably improved after mechanical modification and it can be attributed to amorphysation of the material. Immobilization efficiency increased from 22% for untreated to 81% for the treated sample after 5h at BPR 4.This qualifies natural diatomite as a material for wastewater remediation.

Topics

Adsorption and biosorption for pollutant removal Recycling and Waste Management Techniques Recycling and utilization of industrial and municipal waste in materials production

Identifiers

DOI: 10.2298/sos0903309n

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