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Composito di marmo/granito

Composito di marmo/granito

Adel Ali Mohamed

36,68 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Química
ISBN:
9786209220586
36,68 €
IVA incluido
Disponible
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La contaminazione dell’acqua con metalli pesanti è diventata un importante problema ambientale che comporta seri rischi per la salute pubblica e l’economia. In questo studio, una miscela di polvere di granito e marmo proveniente dall’Egitto è stata miscelata in proporzione peso/peso (2:1) e utilizzata come adsorbente per rimuovere piombo e cadmio da una soluzione acquosa. L’adsorbente preparato è stato caratterizzato mediante diverse tecniche, tra cui la diffrazione di raggi X (XRD), la microscopia elettronica a scansione a emissione di campo (SEM, EDX), la spettroscopia infrarossa a trasformata di Fourier (FTIR) e la misurazione della superficie specifica. L’adsorbente ha mostrato una capacità di adsorbimento massima del 99,48% per il Pb2+ e del 99,80% per il Cd2+. I risultati hanno dimostrato che l’adsorbimento di Pb2+ e Cd2+ si adatta bene all’isoterma di adsorbimento di Langmuir, mentre gli studi cinetici hanno mostrato un modello di secondo ordine. I parametri ottimali per la massima rimozione di Pb2+ e Cd2+ sugli adsorbenti sono stati applicati a un campione di acqua reale proveniente dallo scarico di un laboratorio dello stabilimento Kima, dimostrando un’elevata efficienza di adsorbimento.

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