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Extração de Cr(VI) e do corante Rosa de Bengala utilizando um solvente eutéctico profundo by Kadambanathan K, Anantharaj R, Sneha D

Extração de Cr(VI) e do corante Rosa de Bengala utilizando um solvente eutéctico profundo

by Kadambanathan K , Anantharaj R , Sneha D
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Book cover type: Paperback
  • ISBN13: 9786209603334
  • Binding: Paperback
  • Subject: N/A
  • Publisher: Edicoes Nosso Conhecimento
  • Publisher Imprint: Edicoes Nosso Conhecimento
  • Publication Date:
  • Pages: 72
  • Original Price: GBP 38.19
  • Language: Portuguese
  • Edition: N/A
  • Item Weight: 109 grams
  • BISAC Subject(s): Chemical & Biochemical

Este projeto centra-se na remo��o eficiente e ecol�gica do cr�mio hexavalente (Cr(VI)) e do corante Rosa de Bengala de solu��es aquosas utilizando solventes eut�cticos profundos (DESs) hidrof�bicos. Os efluentes industriais que cont�m metais pesados e corantes sint�ticos representam s�rios riscos ambientais e para a sa�de devido � sua toxicidade, persist�ncia e bioacumula��o. Para responder a estas preocupa��es, foi desenvolvido um sistema de solventes ecol�gicos utilizando cloreto de tetra-metil-am�nio (HBA) e �cido octan�ico (HBD), formando um DES hidrof�bico est�vel.O DES preparado foi caracterizado atrav�s da densidade, pH, FTIR, espetroscopia UV-Vis�vel e an�lise DSC para compreender as suas propriedades f�sico-qu�micas. Foram realizadas experi�ncias de extra��o com solventes em condi��es vari�veis de pH, temperatura, tempo de contacto e concentra��o inicial de poluentes. A espetroscopia UV-Vis foi utilizada para construir curvas de calibra��o e quantificar a efici�ncia da extra��o. Globalmente, o estudo demonstra que os DES hidrof�bicos s�o solventes ecol�gicos rent�veis, biodegrad�veis e altamente eficientes, oferecendo uma alternativa sustent�vel aos solventes org�nicos convencionais para o tratamento de �guas residuais e a remo��o de poluentes.

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