The textile industry is a pillar of the manufacturing sector but is resource-intensive and massively produces scraps. We recovered waste wool to prepare materials for wastewater remediation. The wool underwent alkaline treatment, eventually saturated with a Fe-salt and/or thermally annealed. The materials were physically-chemically characterised, showing the impact of alkaline treatment on morphology and structure; additionally, iron-added samples displayed a behaviour attributable to a crosslinking effect operated by Fe3+. Batch experiments were performed to adsorb KH2PO4, varying the adsorbent:phosphate ratio, contact time and pH. Samples with iron were very efficient, entirely removing the phosphate pollutant.
Waste wool derivatives for water remediation: removal of phosphate ions
Maria Laura Tummino;Cinzia Tonetti;
2023
Abstract
The textile industry is a pillar of the manufacturing sector but is resource-intensive and massively produces scraps. We recovered waste wool to prepare materials for wastewater remediation. The wool underwent alkaline treatment, eventually saturated with a Fe-salt and/or thermally annealed. The materials were physically-chemically characterised, showing the impact of alkaline treatment on morphology and structure; additionally, iron-added samples displayed a behaviour attributable to a crosslinking effect operated by Fe3+. Batch experiments were performed to adsorb KH2PO4, varying the adsorbent:phosphate ratio, contact time and pH. Samples with iron were very efficient, entirely removing the phosphate pollutant.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
