Recycled waste porous glass (RWPG), from municipal solid wastes (MSW) sorting operations, may be used as a sorbent for lead ion removal from industrial wastewaters. To the purpose, dynamic (laboratory columns) operations were carried-out by the use of differently sized glass beads in the range 0.35– 1.25 mm which were eluted with lead ion containing synthetic solutions (2–9.5 mg/L). Temperature was kept constant (298 K), whereas column flow-rates varied in the range 0.20–0.75 L/h. Lead ion retention mechanism was associated to the adsorption/ion exchange phenomena. Best column performance was obtained at 0.5–1 mm bead size range, influent concentration 2 mgPb2+/L and column flow-rate 0.20 L/h. In the reference conditions lead ion retention capacity exceeded 1.10 mg/g. Kinetic analysis of the experimental data was also carried-out and film interdiffusion of the involved ions in the Nernst stationary liquid around the particle was identified as the rate controlling step.
A. Petrella, PETRUZZELLI V. , T. Basile, M. Petrella, G. Boghetich, D. Petruzzelli (2010). Recycled porous glass from municipal/industrial solid waste sorting operations as a lead ion sorbent from wastewaters. REACTIVE & FUNCTIONAL POLYMERS, 70, 203-209 [10.1016/j.reactfunctpolym.2009.11.013].
Recycled porous glass from municipal/industrial solid waste sorting operations as a lead ion sorbent from wastewaters
PETRUZZELLI, VALENTINA;
2010
Abstract
Recycled waste porous glass (RWPG), from municipal solid wastes (MSW) sorting operations, may be used as a sorbent for lead ion removal from industrial wastewaters. To the purpose, dynamic (laboratory columns) operations were carried-out by the use of differently sized glass beads in the range 0.35– 1.25 mm which were eluted with lead ion containing synthetic solutions (2–9.5 mg/L). Temperature was kept constant (298 K), whereas column flow-rates varied in the range 0.20–0.75 L/h. Lead ion retention mechanism was associated to the adsorption/ion exchange phenomena. Best column performance was obtained at 0.5–1 mm bead size range, influent concentration 2 mgPb2+/L and column flow-rate 0.20 L/h. In the reference conditions lead ion retention capacity exceeded 1.10 mg/g. Kinetic analysis of the experimental data was also carried-out and film interdiffusion of the involved ions in the Nernst stationary liquid around the particle was identified as the rate controlling step.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
