Skin layer on thermally dried sludge cake

T. Tao; X. F. Peng; D. J. Lee

doi:10.1080/07373930600776258

Skin layer on thermally dried sludge cake

T. Tao, X. F. Peng, D. J. Lee

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

38 Citations (Scopus)

Abstract

This work utilized an X-ray micro-computerized tomography scanner (micro-CT) to investigate how skin layers - hard and relatively impermeable layers that hinder mass transfer - form and develop on wastewater sludge cake with (cake-O) or without artificial cracks (cake-N). A novel scheme that applies Otsu's algorithm twice was employed to determine the solid phase and skin layers in the scanned cake images. Initial cracks in a cake had significant impact on how the skin layer would form on the cake. A unique correlation between effective surface area to drying (not covered by a skin layer) and moisture content was identified. The advancement velocities of skin layers on drying cake were evaluated.

Original language	English
Pages (from-to)	1047-1052
Journal	Drying Technology
Volume	24
Issue number	8
DOIs	https://doi.org/10.1080/07373930600776258
Publication status	Published - 2006
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Drying
Image analysis
Skin layer
Sludge

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10.1080/07373930600776258

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abstract = "This work utilized an X-ray micro-computerized tomography scanner (micro-CT) to investigate how skin layers - hard and relatively impermeable layers that hinder mass transfer - form and develop on wastewater sludge cake with (cake-O) or without artificial cracks (cake-N). A novel scheme that applies Otsu's algorithm twice was employed to determine the solid phase and skin layers in the scanned cake images. Initial cracks in a cake had significant impact on how the skin layer would form on the cake. A unique correlation between effective surface area to drying (not covered by a skin layer) and moisture content was identified. The advancement velocities of skin layers on drying cake were evaluated.",

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T1 - Skin layer on thermally dried sludge cake

AU - Tao, T.

AU - Peng, X. F.

AU - Lee, D. J.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2006

Y1 - 2006

N2 - This work utilized an X-ray micro-computerized tomography scanner (micro-CT) to investigate how skin layers - hard and relatively impermeable layers that hinder mass transfer - form and develop on wastewater sludge cake with (cake-O) or without artificial cracks (cake-N). A novel scheme that applies Otsu's algorithm twice was employed to determine the solid phase and skin layers in the scanned cake images. Initial cracks in a cake had significant impact on how the skin layer would form on the cake. A unique correlation between effective surface area to drying (not covered by a skin layer) and moisture content was identified. The advancement velocities of skin layers on drying cake were evaluated.

AB - This work utilized an X-ray micro-computerized tomography scanner (micro-CT) to investigate how skin layers - hard and relatively impermeable layers that hinder mass transfer - form and develop on wastewater sludge cake with (cake-O) or without artificial cracks (cake-N). A novel scheme that applies Otsu's algorithm twice was employed to determine the solid phase and skin layers in the scanned cake images. Initial cracks in a cake had significant impact on how the skin layer would form on the cake. A unique correlation between effective surface area to drying (not covered by a skin layer) and moisture content was identified. The advancement velocities of skin layers on drying cake were evaluated.

KW - Drying

KW - Image analysis

KW - Skin layer

KW - Sludge

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DO - 10.1080/07373930600776258

M3 - RGC 21 - Publication in refereed journal

SN - 0737-3937

VL - 24

SP - 1047

EP - 1052

JO - Drying Technology

JF - Drying Technology

IS - 8

ER -

Skin layer on thermally dried sludge cake

Abstract

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Research Keywords

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