Review Article
Adsorption of Heavy Metals in Contaminated Water Using Zeolite Derived from Agro-Wastes and Clays: A Review
Table 3
Other wastes in the synthesis of zeolites.
| Waste material | Zeolite formed | Synthesis method | Product yield (%) | Reference |
| Coal combustion fly ash | Analcime, faujasite, gismondine | Hydrothermal treatment | 70–80 | [193] | Municipal solid waste fly ash and waste bottle powder | Perlialite, zeolite A and Y | Fusion hydrothermal | — | [194] | Volcanic ash | Na-mordenite | Hydrothermal synthesis | 80 | [195] | Municipal solid waste | Clinoptilolite | Hydrothermal conversion | 69 | [196] | Blenod fly ash | Na-X faujasite | Hydrothermal conversion | 20–25 | [197] | Paper sludge ash | Na-PI zeolite | Hydrothermal synthesis | — | [198] |
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