Production of struvite from beverage waste as phosphorus source

Materials Research

Edson Luiz Foletto²  Wilson Roberto Barreto Dos Santos²  Marcio Antonio Mazutti²  Sérgio Luiz Jahn²  André Gündel¹ 

[1] ,Federal University of Santa Maria - UFSM Department of Chemical Engineering Santa Maria RS ,Brazil

关键词: struvite;    characterization;    beverage waste;    phosphorous;   

DOI  :  10.1590/S1516-14392012005000152

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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