Search results for: S. Brosillon

Items from 1 to 11 out of 11 results

article

High performance PVDF-TiO2 membranes for water treatment

J.-P. Méricq, J. Mendret, S. Brosillon, C. Faur

Chemical Engineering Science > 2015 > 123 > C > 283-291

In order to obtain low-fouling membranes, TiO₂ nanoparticles were entrapped in PVDF membranes prepared by the NIPS wet-process. Typical asymmetric membrane structure was obtained. Membrane structure, hydrophilic properties and permeability were improved in comparison with PVDF neat membrane when increasing TiO₂ concentration up to an optimum concentration of 25%wt. Maximum permeate flux of 150L/h/m...

article

Synthesis of binderless zeolite aggregates (SOD, LTA, FAU) beads of 10, 70μm and 1mm by direct pseudomorphic transformation

Maria Mańko, Jullian Vittenet, Jeremy Rodriguez, Didier Cot, more

Microporous and Mesoporous Materials > 2013 > 176 > Complete > 145-154

Pseudomorphic transformation is a promising alternative to conventional approaches for the preparation of binderless preshaped zeolite beads. However this method was until now restricted to zeolites synthesized in low alkaline media (OH ⁻ /SiO ₂ ≪1) (ZSM-5, FER, BEA), where the silica dissolution rate was slow in comparison to zeolite crystallization rate. In this study, we demonstrated...

article

Relevance of Photocatalysis prior to Biological Treatment of Organic Pollutants – Selection Criteria

F. Fourcade, S. Yahiat, K. Elandaloussi, S. Brosillon, more

Chemical Engineering & Technology > 35 > 2 > 238 - 246

The relevance of a photocatalytic pretreatment prior to a biological process for removal of organic pollutants was examined. Owing to the significant residual amount and toxicity, amitrole was not relevant. High mineralization allowed to remove bisphenol A and 2,4‐dichlorophenoxyacetic acid. Isoproturon and diuron cannot be considered due to the slight evolution of chemical oxygen demand/total organic...

article

Photocatalytic Membranes for the Treatment of Refractory Organic Pollutants

M. Hatat-Fraile, J. Mendret, M. Rivallin, S. Brosillon

Procedia Engineering > 2012 > 44 > Complete > 440-442

article

Composite Polymeric Membrane with Entrapped TiO2 Nano-Sized Particles for Water Treatment: Optimized Elaboration Through a Structural and Functional Characterization

J.P. Mericq, J. Mendret, S. Brosillon, C. Faur

Procedia Engineering > 2012 > 44 > Complete > 1272-1274

article

Removal of antibiotics by an integrated process coupling photocatalysis and biological treatment – Case of tetracycline and tylosin

S. Yahiat, F. Fourcade, S. Brosillon, A. Amrane

International Biodeterioration & Biodegradation > 2011 > 65 > 7 > 997-1003

Much attention has been recently devoted to the fate of pharmaceutically active compounds such as antibiotics in soil and water. Among them, tetracycline (TC) and tylosin (TYL) antibiotics were shown to be poorly biodegradable and toxic for microorganisms. The question of their fate in the environment has to be clearly identified in order to prevent any environmental contamination and to avoid generating...

article

Glass foams for environmental applications

R. Lebullenger, S. Chenu, J. Rocherullé, O. Merdrignac-Conanec, more

Journal of Non-Crystalline Solids > 2010 > 356 > 44-49 > 2562-2568

Glass foams were produced using glass industrial waste and aluminium nitride as foaming agent. Steel-making dusts were also used to prepare these expanded materials. Time and temperature process parameters were tuned to adjust physico-chemical properties such as density and porosity. Structural characterisation by X-ray diffraction reveals the amorphous or crystalline nature depending on process parameters...

article

Supported photocatalysis as a pre‐treatment prior to biological degradation for the removal of some dyes from aqueous solutions; Acid Red 183, Biebrich Scarlet, Methyl Red Sodium Salt, Orange II

D. Chebli, F. Fourcade, S. Brosillon, S. Nacef, more

Journal of Chemical Technology & Biotechnology > 85 > 4 > 555 - 563

BACKGROUND: The aim of this study was to assess the feasibility of coupling photocatalysis and a biological treatment for the removal of azo dyes from aqueous effluents. Biological processes do not always appear relevant for dyes removal, owing to the low or total absence of biodegradability of this class of pollutants. RESULTS: During photocatalysis pre‐treatment, a decrease in the chemical oxygen...

article

Ultra-pressure liquid chromatography–electrospray tandem mass spectrometry for multiresidue determination of pesticides in water

G. Gervais, S. Brosillon, A. Laplanche, C. Helen

Journal of Chromatography A > 2008 > 1202 > 2 > 163-172

A multiresidue analysis method has been developed for the determination of pesticides in water by ultra-performance liquid chromatography (UPLC) combined with tandem mass spectrometry (MS/MS). The selected pesticides represent a broad range of polarity and volatility [benzoylcyclohexanedione (mesotrione and sulcotrione); chloroacetamide (acetochlor, alachlor, dimethenamide, and metolachlor); phenoxyacetic...

article

Innovative integrated process for the treatment of azo dyes: coupling of photocatalysis and biological treatment

S. Brosillon, H. Djelal, N. Merienne, A. Amrane

Desalination > 2008 > 222 > 1-3 > 331-339

Tests of the biodegradation of the azo dyes Reactive Black 5 and Reactive Yellow 145 confirmed the low biodegradability of these components in the considered conditions, namely a strain of Pseudomonas fluorescens, cultivated at 25°C, an initial pH of 7 and in presence of a supplementary carbon source, glucose. Indeed, for an initial dye concentration of 40 ppm, the maximum yields of decolouration...

article

Photocatalytic degradation of pesticides in pure water and a commercial agricultural solution on TiO2 coated media

L. Lhomme, S. Brosillon, D. Wolbert

Chemosphere > 2008 > 70 > 3 > 381-386

Heterogeneous photocatalysis of pesticides is an effective process for removing pesticides from pure water. With a view to treating real agricultural effluents, this paper deals with the degradation of the chlortoluron and cyproconazole pesticides in pure water and the treatment of commercial solutions by photocatalysis on TiO ₂ coated media. The process was effective in degrading and mineralizing...

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