Regeneration of the Brewing Spent Diatomite

Wen Ya Mei; Teng Hong Hui

doi:10.4028/www.scientific.net/AMR.998-999.1425

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 998-999Regeneration of the Brewing Spent Diatomite

Regeneration of the Brewing Spent Diatomite

Abstract:

Brewing spent diatomite (BSDT), a beer industrial by-product, was regenerated with calcination. The characteristics of regenerated BSDT were detected by X-ray diffraction, X-ray fluorescence, Fourier-transform infrared, and scanning electron microscopy. The results showed that the mineralization of the surface adsorbate and the remarkable increase in the Si-OH decreased the pHpzc value from 7.6 to 5.2 and increased the surface area from 36 m2/g to 52 m2/g after calcination at 800 °C. The results show that the regenerated BSTD could be employed as an efficient adsorbent for the recycling of BSDT.