Production of struvite from beverage waste as phosphorus source

AUTOR(ES)

Foletto, Edson Luiz, Santos, Wilson Roberto Barreto dos, Mazutti, Marcio Antonio, Jahn, Sérgio Luiz, Gündel, André

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

13/11/2012

RESUMO

In this work was investigated the influence of pH on the synthesis of struvite using cola beverage waste as source of phosphorus. The process was operated in a batch reactor. The reaction time was 20 minutes, and the chemicals MgCl2.6H2O and NH4Cl were used in the experiment, with a molar ratio of Mg+2:NH4+:PO4(3-) = 1:1:1. The products were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), surface area (BET), thermogravimetric analysis (TGA) and infra-red (IR). From the results was verified the formation of a crystalline phase at pH 9.5, with a surface area of 6.59 m² g-1 and a particle size of about 0.25 µm.

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