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Biosorbimento del Cadmio in Soluzione Acquosa Utilizzando Gusci d'Uovo

Biosorbimento del Cadmio in Soluzione Acquosa Utilizzando Gusci d'Uovo


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About the Book

È stato studiato il biosorbimento di ioni cadmio (II) da soluzioni acquose su gusci d'uovo (Gallus domesticus) in polvere. La spettroscopia IR e il punto di carica zero sono stati utilizzati per caratterizzare il biosorbente al fine di identificare rispettivamente i gruppi funzionali e la carica del materiale. Gli esperimenti in batch sono stati utilizzati per comprendere meglio il meccanismo di biosorbimento e per esaminare gli effetti di alcuni parametri importanti come il dosaggio del biosorbente, il tempo di contatto, la concentrazione iniziale dell'inquinante e il pH della soluzione che influenzano il biosorbimento. La percentuale massima di rimozione degli ioni cadmio (II) (99,5%) è stata ottenuta con 100 mg di biosorbente trattato, un tempo di contatto di 30 minuti e un pH di 4,5. I dati sperimentali si sono adattati meglio alla teoria di Langa. I dati sperimentali si sono adattati meglio al modello di Langmuir, dove R2 = 0,994. I risultati dello studio cinetico indicano che il modello del pseudo-secondo ordine è quello che ha il miglior coefficiente di determinazione (R2 = 0,999) e gli studi di diffusione intra particolare hanno mostrato tre porzioni lineari (R12 = 1 e R22 = 0,989 e R32 = 0,707). Da questi risultati, possiamo raccomandare che i gusci d'uovo possano essere utilizzati come un efficace biosorbente a basso costo per rimuovere gli ioni cadmio (II) dalle acque reflue.


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Product Details
  • ISBN-13: 9786206287414
  • Publisher: KS Omniscriptum Publishing
  • Binding: Paperback
  • Language: Italian
  • Returnable: N
  • Weight: 163 gr
  • ISBN-10: 6206287416
  • Publisher Date: 28 Jul 2023
  • Height: 229 mm
  • No of Pages: 68
  • Spine Width: 4 mm
  • Width: 152 mm


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