Extraction du Cr(VI) et du colorant Rose Bengale à l'aide d'un solvant eutectique profond
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Imported Edition - Ships in 18-21 Days
Free Shipping in India on orders above Rs. 500
Ce projet porte sur l'�limination efficace et �cologique du chrome hexavalent (Cr(VI)) et du colorant Rose Bengale des solutions aqueuses � l'aide de solvants eutectiques profonds (DES) hydrophobes. Les effluents industriels contenant des m�taux lourds et des colorants synth�tiques pr�sentent de s�rieux risques pour l'environnement et la sant� en raison de leur toxicit�, de leur persistance et de leur bioaccumulation. Pour r�pondre � ces pr�occupations, un syst�me de solvant vert a �t� mis au point en utilisant du chlorure de t�tra m�thyl ammonium (HBA) et de l'acide octano�que (HBD), formant un DES hydrophobe stable.Le DES pr�par� a �t� caract�ris� par la densit�, le pH, l'IRTF, la spectroscopie UV-Visible et l'analyse DSC afin de comprendre ses propri�t�s physicochimiques. Des exp�riences d'extraction par solvant ont �t� men�es dans des conditions variables de pH, de temp�rature, de temps de contact et de concentration initiale de polluants. La spectroscopie UV-Vis a �t� utilis�e pour construire des courbes d'�talonnage et quantifier l'efficacit� de l'extraction. Dans l'ensemble, l'�tude d�montre que les DES hydrophobes sont des solvants verts rentables, biod�gradables et tr�s efficaces, offrant une alternative durable aux solvants organiques conventionnels pour le traitement des eaux us�es et l'�limination des polluants.
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