Application of pyrolysed agricultural biowastes as adsorbents for fish anaesthetic (MS-222) removal from water
authors Ferreira, CIA; Calisto, V; Santos, SM; Cuerda-Correa, EM; Otero, M; Nadais, H; Esteves, VI
nationality International
journal JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
author keywords Pyrolysis; Biochar; Aquaculture; Environment; Remediation
keywords ACTIVATED CARBON; VACUUM PYROLYSIS; AQUEOUS-SOLUTION; ADSORPTION; BIOCHAR; AQUACULTURE; SORPTION; BIOMASS; SLUDGE; CHARS
abstract This work aims to test the adsorption process for the removal of the fish anaesthetic MS-222 from water using biochars obtained from agricultural biowastes (Eucalyptus bark, peanut shells, walnut shells, peach stones, grape seeds and olive waste) as adsorbents. An industrial residue (primary paper mill sludge) and a commercial activated carbon were tested for comparison purposes. The starting materials and the resulting biochars were characterized by elemental and proximate analyses, total organic carbon, FTIR, C-13 and H-1 solid state NMR, and SEM. Also, specific surface area and porosity of biochars were determined. Then, batch kinetic and equilibrium experiments were performed on the adsorption of MS-222 onto the different produced biochars. The fastest kinetic was obtained using primary sludge pyrolysed (30 min to equilibrium attainment) and the highest biochars adsorption capacity was obtained using peanut shells (34 mg g(-1) of maximum adsorption capacity, predicted by the Langmuir-Freundlich model). Commercial activated carbon reaches 349 mg g(-1) of maximum adsorption capacity, as predicted by Langmuir model. (C) 2015 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 0165-2370
year published 2015
volume 112
beginning page 313
ending page 324
digital object identifier (doi) 10.1016/j.jaap.2015.01.006
web of science category Chemistry, Analytical; Spectroscopy
subject category Chemistry; Spectroscopy
unique article identifier WOS:000352172100038
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journal impact factor 3.468
5 year journal impact factor 4.324
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