Improving The Adsorption Capacity And Solid Structure Of Natural Volcanic Soil Using A Foaming-Sintering Process Based On Recycled Polyethylene Terephthalate (PET)  

Oleh:

Navia, Rodrigo ; Rubilar, Olga ; Diez, M. Cristina ; Schmidt, Karl-Heinz ; Behrendt, Gerhard ; Lorber, Karl E.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Waste Management & Research vol. 25 no. 2 (Apr. 2007), page 119-129.
Topik: Adsorption; chlorophenols; polyol; recycled polyethylene terephthalate (PET); volcanic soil; wmr 1017–9
Fulltext: 119.pdf (563.88KB)

Isi artikel

The volcanic soils of southern Chile have demonstrated a high capacity to adsorb environmental pollutants, but for an industrial application, a stable solid material is necessary. The objective of this work was to produce a stable ceramic material through a process involving volcanic soil–polyurethane foam produced with recycled polyethylene terephthalate (PET)– polyols, and further thermal treatment. The selected foam formulation with 35.4% volcanic soil (< 63 µm) seems to be the most suitable for thermal treatment, with temperature steps at 700, 850, 1000 and 1200°C. The porous ceramic material obtained has a stable solid form and an improved chlorophenols adsorption capacity (comparable to natural zeolites) that makes it suitable for advanced wastewater treatment and landfill leachate depuration.

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