Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Claude Gavach"'
Autor:
Claude Gavach, Christelle Wisniewski, Alain Grasmick, Roger Sandeaux, Florence Lutin, Françoise Persin, Toufik Cherif
Publikováno v:
Desalination
Desalination, Elsevier, 2002, 149 (1-3), pp.331-336. ⟨10.1016/S0011-9164(02)00805-6⟩
Desalination, Elsevier, 2002, 149 (1-3), pp.331-336. ⟨10.1016/S0011-9164(02)00805-6⟩
Electrodialysis (ED) is an efficient process for the treatment of drinking water with high nitrate concentration. However it achieves only a transfer of pollution by producing concentrated brines. This study demonstrated the feasibility of ED brine d
Autor:
Evgueny Laktionov, Gérald Pourcelly, Emmanuel Dejean, Roger Sandeaux, Jacqueline Sandeaux, Claude Gavach
Publikováno v:
Separation Science and Technology. 34:69-84
Production of high resistivity water was investigated by electrodialysis (ED) using either inert or conducting spacers. Ion-exchange textiles were used as conducting spacers. Experiments were performed on a preindustrial scale with a pilot consisting
Publikováno v:
Desalination. 122:53-62
Too many or too few fluoride ions in drinking water are harmful to the consumer's health. The acceptable fluoride concentration is generally in the range of 0.5 to 1.5 mg.L−1. In the present study, Donnan dialysis (DD) with an anion-exchange membra
Publikováno v:
Journal of Applied Electrochemistry. 29:371-382
The electrogenerated mediator oxidation process is capable of oxidizing organic compounds to the final step, producing CO2. It requires the use of separate compartments for the anode and cathode. A considerable electric charge is necessary to decompo
Publikováno v:
Separation and Purification Technology. 18:1-11
Excess or lack of levels of fluoride in drinking water being harmful to human health, the concentration of F− ions must be maintained in the range 0.5 to 1.5 mg l−1. The purpose of this study is to apply Donnan dialysis (DD) for fluoride removal
Publikováno v:
Desalination. 120:175-184
The extraction of Pb2+ ions from diluted solutions was achieved using a hybrid process combining cation exchange textiles, ion-exchange membranes and electric current. Two methods were investigated: an electroextraction process in two steps where the
Publikováno v:
Journal of Chemical Technology & Biotechnology. 73:64-70
Electrodialysis (ED) with bipolar membranes (BPM) was applied for the extraction of amino acids in an electrically neutral form. Under voltage, BPM split water, generating hydroxyl ions at the anodic side and protons at the cathodic side. The use of
Publikováno v:
Talanta. 46:1605-1611
Donnan Dialysis of Ag + and Zn 2+ was investigated through a cation exchange membrane (CMS Neosepta) when a proton concentration difference was maintained between the two sides of the membrane. Developed for the production of brine from sea water, CM
Publikováno v:
Journal of Membrane Science
Journal of Membrane Science, Elsevier, 1998, 144 (1-2), pp.259-274. ⟨10.1016/S0376-7388(98)00062-3⟩
Journal of Membrane Science, Elsevier, 1998, 144 (1-2), pp.259-274. ⟨10.1016/S0376-7388(98)00062-3⟩
Transport competition between protons and Ag+, Co2+and Ce3+ ions across a Nafion™ cation exchange membrane (CEM) has been studied in the Donnan exclusion domain. In such conditions the membrane does not contain any mobile anion but only cations (th
Autor:
Jacqueline Sandeaux, D. Belhocine, Roger Sandeaux, T. Sadat, Claude Gavach, Nabil Mameri, H. Grib
Publikováno v:
Journal of Chemical Technology & Biotechnology. 71:267-273
Protein hydrolysates were obtained by acid hydrolysis from animal or human residues, such as poultry feathers, ox blood and human hair. After neutralization and discolouration with active charcoal, the hydrolysates were treated by successive electrod