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dc.contributor.authorLau, Shiew Wei
dc.contributor.authorChong, Siew
dc.contributor.authorAng, Ming
dc.contributor.authorSen, Tushar
dc.contributor.authorChua, Han Bing
dc.contributor.editorRavindra Pogaku, Awang Bono and Christopher Chu
dc.identifier.citationLau, S.W. and Chong, S. and Ang, M. and Sen, T. and Chua, H.B. 2013. Dewaterability of Anaerobic Digested Sludge with Cations and Chitosan as Dual Conditioners. In Developments in Sustainable Chemical and Bioprocess Technology, ed. Ravindra Pogaku, Awang Bono and Christopher Chu, 11-17. United States: Springer Science+Business Media New York.

Anaerobic digested sludge dewatering is very important in sludge management and disposal. In this study, flocculation and dewatering behaviour of anaerobic digested sludge were investigated using metal cations (sodium, magnesium, calcium, ferric and aluminium salts) and chitosan as dual conditioners. The trivalent ferric and aluminium ions were found to be more effective than the monovalent and divalent cations in improving sludge dewaterability as measured by capillary suction time (CST). Post-addition of chitosan into the sludge precoagulated with metal cations further enhanced the sludge dewaterability. This study suggests that pre-destabilisation of sludge by coagulation with metal cations followed by chitosan addition as polymeric flocculant may improve the dewaterability of anaerobic digested sludge.

dc.publisherSpringer Science+Business Media New York
dc.titleDewaterability of Anaerobic Digested Sludge with Cations and Chitosan as Dual Conditioners
dc.typeBook Chapter
dcterms.source.titleDevelopments in Sustainable Chemical and Bioprocess Technology
dcterms.source.placeUnited States
curtin.departmentCurtin Sarawak
curtin.accessStatusFulltext not available

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