Glass-Ceramics Obtained from Sewage Sludge and its Characteristics Affected by Alkalinity

Di Wu; Jun Zhang; Xing Wang Wen; Hui Ling Liu

doi:10.4028/www.scientific.net/AMR.937.70

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Glass-Ceramics Obtained from Sewage Sludge and its Characteristics Affected by Alkalinity
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 937Glass-Ceramics Obtained from Sewage Sludge and its...

Glass-Ceramics Obtained from Sewage Sludge and its Characteristics Affected by Alkalinity

Abstract:

Sewage sludge was tested as component for producing glass-ceramics with the addition of analytic reagent CaO to solve the sewage sludge disposal problems. The effect of alkalinity (Ak=mCaO/mSiO₂) on the characteristics of the glass-ceramics was investigated. Differential scanning calorimetry (DSC) and X-ray diffraction (XRD) were used to investigate thermal behavior and crystalline phase of the samples. It was found that the degree and characteristics of crystals in vitrified sludge significantly correlate to the alkalinity of the raw materials. The glass-ceramics with Ak = 0.36 possessed the best physical and chemical properties.

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Periodical:

Advanced Materials Research (Volume 937)

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70-73

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.937.70

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Online since:

May 2014

Authors:

Di Wu*, Jun Zhang, Xing Wang Wen, Hui Ling Liu

Keywords:

Alkalinity, Glass-Ceramics, Sewage Sludge

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