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Indexed by:期刊论文

Date of Publication:2009-12-01

Journal:FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING IN CHINA

Included Journals:SCIE、Scopus

Volume:3

Issue:4

Page Number:464-469

ISSN No.:1673-7415

Key Words:multifractal characteristic; multifractal singularity spectrum; sewage sludge drying

Abstract:This paper analyzes dewatered sludge drying using the multifractal theory. The drying rates of cylindrical sludge with equal masses but different cross-sectional diameters was studied, from which multifractal parameters such as partition function and quality exponent were obtained. The parameters acquired were used to calculate the multifractal singularity spectrum and indicate the presence of multifractal characteristics. The smaller cross-sectional diameters of the sludge were found to be non-homogeneous, and required quantitative methods to analyze.