Production of adsorbents by pyrolysis of paper mill sludge and application on the removal of citalopram from water
authors Calisto, V; Ferreira, CIA; Santos, SM; Gil, MV; Otero, M; Esteves, VI
nationality International
journal BIORESOURCE TECHNOLOGY
author keywords Biochar; Pharmaceuticals; Environment; Remediation; Industrial residues
keywords ENDOCRINE DISRUPTING COMPOUND; ACTIVATED CARBON; RECLAIMED WATER; SEWAGE-SLUDGE; PHARMACEUTICALS; ADSORPTION; BIOCHAR; PULP; CONTAMINANTS
abstract This work describes the production of alternative adsorbents from industrial residues and their application for the removal of a highly consumed antidepressant (citalopram) from water. The adsorbents were produced by pyrolysis of both primary and biological paper mill sludge at different temperatures and residence times. The original sludge and the produced chars were fully characterized by elemental and proximate analyses, total organic carbon, specific surface area (BET), N-2 isotherms, FTIR, C-13 and H-1 solid state NMR and SEM. Batch kinetic and equilibrium experiments were carried out to describe the adsorption of citalopram onto the produced materials. The fastest kinetics and the highest adsorption capacity were obtained using primary sludge pyrolysed at 800 degrees C during 150 min. The use of pyrolysed paper mill sludge for the remediation of contaminated waters might constitute an interesting application for the valorization of those wastes. (C) 2014 Elsevier Ltd. All rights reserved.
publisher ELSEVIER SCI LTD
issn 0960-8524
year published 2014
volume 166
beginning page 335
ending page 344
digital object identifier (doi) 10.1016/j.biortech.2014.05.047
web of science category Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels
subject category Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels
unique article identifier WOS:000338711100043
link 24926607
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journal impact factor 5.807
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