Assessment of Chitosan Conditioning in a Synthetic Anaerobic Digested Sludge System

Effects of dosage and pH in chitosan conditioning were investigated for studying the anaerobic digested sludge dewatering characteristics using a modified synthetic sludge system. A comparison was made with the conditioning results using inorganic metal cations. Capillary suction time, turbidity and...

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Main Authors: Lau, Shiew Wei, Ang, Ming, Sen, Tushar, Chua, Han Bing
Other Authors: Chemeca 2014
Format: Conference Paper
Published: Chemeca 2014 2014
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/11803
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author Lau, Shiew Wei
Ang, Ming
Sen, Tushar
Chua, Han Bing
author2 Chemeca 2014
author_facet Chemeca 2014
Lau, Shiew Wei
Ang, Ming
Sen, Tushar
Chua, Han Bing
author_sort Lau, Shiew Wei
building Curtin Institutional Repository
collection Online Access
description Effects of dosage and pH in chitosan conditioning were investigated for studying the anaerobic digested sludge dewatering characteristics using a modified synthetic sludge system. A comparison was made with the conditioning results using inorganic metal cations. Capillary suction time, turbidity and filtered cake solids content were measured to assess sludge dewaterability. Floc sizes and the Fourier Transform Infrared spectrums were also examined for the conditioned sludge properties. Experimental results indicate that sludge conditioned with chitosan showed remarkable dewaterability with close resemblance to real sludge system. A strong correlation between floc size and dewaterability was observed with increasing chitosan dosage. The optimum dewaterability was found in the acidic region. The synthetic sludge conditioned with chitosan showed comparable dewaterability with the one conditioned with trivalent cation. This proposed synthetic sludge behaves similar to a typical anaerobic digested sludge when conditioned with chitosan.
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publishDate 2014
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spelling curtin-20.500.11937-118032017-01-30T11:26:59Z Assessment of Chitosan Conditioning in a Synthetic Anaerobic Digested Sludge System Lau, Shiew Wei Ang, Ming Sen, Tushar Chua, Han Bing Chemeca 2014 chitosan cation Synthetic sludge conditioning dewaterability Effects of dosage and pH in chitosan conditioning were investigated for studying the anaerobic digested sludge dewatering characteristics using a modified synthetic sludge system. A comparison was made with the conditioning results using inorganic metal cations. Capillary suction time, turbidity and filtered cake solids content were measured to assess sludge dewaterability. Floc sizes and the Fourier Transform Infrared spectrums were also examined for the conditioned sludge properties. Experimental results indicate that sludge conditioned with chitosan showed remarkable dewaterability with close resemblance to real sludge system. A strong correlation between floc size and dewaterability was observed with increasing chitosan dosage. The optimum dewaterability was found in the acidic region. The synthetic sludge conditioned with chitosan showed comparable dewaterability with the one conditioned with trivalent cation. This proposed synthetic sludge behaves similar to a typical anaerobic digested sludge when conditioned with chitosan. 2014 Conference Paper http://hdl.handle.net/20.500.11937/11803 Chemeca 2014 restricted
spellingShingle chitosan
cation
Synthetic sludge
conditioning
dewaterability
Lau, Shiew Wei
Ang, Ming
Sen, Tushar
Chua, Han Bing
Assessment of Chitosan Conditioning in a Synthetic Anaerobic Digested Sludge System
title Assessment of Chitosan Conditioning in a Synthetic Anaerobic Digested Sludge System
title_full Assessment of Chitosan Conditioning in a Synthetic Anaerobic Digested Sludge System
title_fullStr Assessment of Chitosan Conditioning in a Synthetic Anaerobic Digested Sludge System
title_full_unstemmed Assessment of Chitosan Conditioning in a Synthetic Anaerobic Digested Sludge System
title_short Assessment of Chitosan Conditioning in a Synthetic Anaerobic Digested Sludge System
title_sort assessment of chitosan conditioning in a synthetic anaerobic digested sludge system
topic chitosan
cation
Synthetic sludge
conditioning
dewaterability
url http://hdl.handle.net/20.500.11937/11803