C - Chemistry – Metallurgy – 12 – M
Patent
C - Chemistry, Metallurgy
12
M
C12M 1/09 (2006.01) C12M 1/12 (2006.01)
Patent
CA 2672790
The invention relates to a method for the treatment of a material flow comprising at least one valuable substance of each of the following groups (A) amino acids, (B) carboxylic acids differing from amino acids, having 1 to 5 carbon atoms, and (C) inorganic salts, the method comprising the following steps: (1) treating the material flow by means of nanofiltration in order to obtain a retentate enriched with a valuable substance (A), (2) treating the permeate of step (1) by means of electrodialysis in order to obtain a concentrate enriched with a valuable substance (C), (3) treating the diluate of step (2) by means of a system (3) of two steps (4) and (5) interconnected either directly or indirectly, wherein (4) a treatment is carried out by means of reverse osmosis, and (5) a treatment is carried out by means of electrodialysis, wherein a concentrate enriched with a valuable substance (B) is obtained, (6) at least part of the retentate of step (4) is fed to step (5) either directly or indirectly, and (7) at least part of the diluate of step (5) is fed to step (4) either directly or indirectly.
Procédé de traitement d'un flux de substance contenant au moins une matière utile parmi chacun des groupes suivants : (A) acides aminés; (B) acides carboxyliques différents des acides aminés avec 1 à 5 atomes de carbone; et (C) sels minéraux. Ce procédé présente les étapes suivantes : (1) traitement du flux de substance par nanofiltration afin d'obtenir un rétentat enrichi en matière utile (A); (2) traitement du perméat de l'étape (1) par électrodialyse afin d'obtenir un concentrat enrichi en matière utile (C); (3) traitement du diluat de l'étape (2) au moyen d'un système (3) à deux étages (4) et (5) directement ou indirectement interconnectés, (4) traitement par osmose inverse et (5) traitement par électrodialyse, un concentrat enrichi en matière utile (B) étant alors obtenu, (6) acheminement d'au moins une partie du rétentat de l'étape (4) directement ou indirectement à l'étape (5), et (7) acheminement d'au moins une partie du diluat de l'étape (5) directement ou indirectement à l'étape (4).
Koschuh Werner
Kromus Stefan
Gruene-Bioraffinerie.at Gmbh
Moffat & Co.
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