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REMOVAL OF DISSOLVED AND PARTICULATE CONTAMINANTS FROM AQUEOUS SOLUTION USING NATURAL FLAX FIBRES



Author(s): B. Abbar, A. Alem, A. Pantet, S. Marcotte, N.-D. Ahfir, D. Duriatti
Paper category: Proceedings
Book title: Proceedings of the 2nd International Conference
on Bio-Based Building Materials
Editor(s): Sofiane AMZIANE, Mohammed SONEBI and Karine CHARLET
ISBN:
e-ISBN: 978-2-35158-192-6
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 676-681
Total Pages: 2
Language : English


Abstract: The aim of this paper is to present the results of two different tests: (i) Batch experiment to
quantify the sorption potential of flax fibre tows for lead ions from aqueous solution. The
influence of contact time, pH, initial concentration, and adsorbent dose on the adsorption
process were studied. Results revealed that adsorption rate initially increased rapidly, and the
optimal removal efficiency was reached within about 1h. The adsorption isotherms could be fitted
well by the Langmuir model. The RL value in the present investigation was less than one,
indicating that the adsorption of the metal ions onto flax fibre tows is favourable. (ii) Column tests
to characterize the influence of flax fibre geotextile on the transfer and retention of suspended
particles (Kaolinite) in a saturated sandy filter, with and without flax fibre geotextile, under
steady-state flow. Analysis and interpretation of the effects of geotextiles on transport and
retention of suspended particles (SP) were aided through mass balance computation, elution
curves and deposition profiles. Results showed that the use of flax fibre geotextile not only
enhances the overall retention of the filter but also increases its lifetime.


Online publication :2017
Publication type :full_text
Public price (Euros) : 0.00


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