Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/244158
Type: Artigo de periódico
Title: Comprehensive Characterization Of Sugarcane Bagasse Ash For Its Use As An Adsorbent
Author: Rodriguez-Diaz
Joan Manuel; Prieto Garcia
Julio Omar; Bravo Sanchez
Luis Ramon; Carlos da Silva
Meuris Gurgel; da Silva
Valdinete Lins; Arteaga-Perez
Luis E.
Abstract: This study provides a full characterization of ashes generated from the combustion of bagasse at two different sugarcane ethanol plants, one in the state of Pernambuco, Brazil (SBA1), and the other in Villa Clara, Cuba (SBA2), with a view to examining their usage as adsorbing agents for the removal of heavy metals and various organic impurities. The ash samples were analyzed for both chemical composition and for structural features that would aid their use. Chemical characterization was done spectrally, through the examination of X-ray fluorescence and diffraction, Fourier transform infrared spectroscopy, and thermally, through thermogravimetric and differential thermal analysis. Structural and surface characterization was carried out by examining N-2-physisorption, helium pycnometry, and scanning electron microscopy. The results of each analysis were compared to those of recognized or potential adsorbent materials. Both ashes have structural similarities, heterogeneous morphologies, irregular surfaces, and a prevalence of superficial polar groups (carbonyl, carboxyl, and hydroxyl). Based on their physical and chemical characteristics, ashes could be used as adsorbent for both, organic (e.g., dyes, phenols, etc.) and inorganic (e.g., heavy metals) compounds.
Subject: Rice Husk Ash
Fly-ash
Aqueous-solution
Equilibrium Isotherm
Activated Carbon
Waste-water
Solid-waste
Adsorption
Removal
Biomass
Country: NEW YORK
Editor: SPRINGER
Rights: fechado
Identifier DOI: 10.1007/s12155-015-9646-6
Address: http://link.springer.com/article/10.1007%2Fs12155-015-9646-6#page-1
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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