Comparative Analysis of Excess Sludge and Digested Sludge Pyrolysis Characteristics

Wei Jun Zhang; Liang Jun Cai

doi:10.4028/www.scientific.net/AMM.217-219.817

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 217-219Comparative Analysis of Excess Sludge and Digested...

Comparative Analysis of Excess Sludge and Digested Sludge Pyrolysis Characteristics

Abstract:

Thermal analysis tests of residual sludge and digested sludge were performed on a thermogravimetric-differential thermal (TG-DTA) integrated thermal analysis instrument at the same heating rate. By doing this, the purpose is to understand the sludge pyrolytic law, to determine the optimal drying temperature for retaining the most calorific value of sludge, and to provide the basis to the sludge thermal drying treatment. The results show that the loss of organic matter in the digested sludge and excess sludge is smaller at the drying temperature of not higher than 250°C, and the optimal drying temperature of excess sludge may be slightly higher.

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Periodical:

Applied Mechanics and Materials (Volumes 217-219)

Pages:

817-820

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.217-219.817

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Online since:

November 2012

Authors:

Wei Jun Zhang, Liang Jun Cai

Keywords:

Pyrolysis, Sludge, Thermal Analysis, Thermal Drying

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