Title:
Ethylene Glycol Treatment of Scots Pine (Pinus Sylvestris) Sawdust to Produce a Novel Adsorption Material for Chromium(VI)
Author(s):
Sidiras, D.K., Politi, D.V.
Document(s):
Paper
Abstract:
Batch and column kinetics of Chromium (VI) adsorption on (i) ethylene glycol/water and (ii) ethylene glycol/water/sulphuric acid treated Scots Pine (Pinus Sylvestris) sawdust was simulated, using untreated pine sawdust as control, in order to explore the potential use of this low-cost adsorbent for wastewater Chromium (VI) removal. The effect of the pretreatment time at 200 oC on the microstructure and the crystallinity of pine sawdust was investigated using scanning electron microscope (SEM), Fourier transform infrared (FTIR) spectra, X-ray diffraction (XRD) and BET (Brunauer, Emmet and Teller) surface area techniques. The estimated values of BET surface area, the Freundlich’s adsorption capacity KF, the amount of dye adsorbed when saturation is attained (Langmuir constant qm), the rate constant values for first-and second-order kinetics and the maximum solid-phase concentration of the solute q0 (column studies) indicate the rate and the extent that the severity of the ethylene glycol treatment enhanced the adsorption behaviour of the modified material.
Keywords:
pretreatment, sawdust, adsorption
Topic:
Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Biorefineries
Event:
19th European Biomass Conference and Exhibition
Session:
VP2.7.18
Pages:
1802 - 1809
ISBN-13:
978-88-89407-55-4
ISBN-10:
88-89407-55-7
Paper DOI:
10.5071/19thEUBCE2011-VP2.7.18
Price:
FREE
