File Download
Supplementary

Conference Paper: Incinerating Hong Kong water treatment sludge: the potential of ash reuse and recycling

TitleIncinerating Hong Kong water treatment sludge: the potential of ash reuse and recycling
Authors
Issue Date2009
PublisherKadorrie Institute, the University of Hong Kong.
Citation
The 1st Kadoorie Institute Research Symposium, Hong Kong, 25-26 May 2009. How to Cite?
AbstractAt present, landfilling is the only means to dispose of nearly 900 tonnes of dewatered waste sludge generated in Hong Kong everyday. The Environmental Protection Department of Hong Kong has chosen sludge incineration to resolve this issue, but it should be further noticed that this approach still results in residual ashes that require proper stabilization prior to be landfilled. A sustainable solution in waste management should develop a closed-loop for material flow by reusing and recycling. Current focuses on sludge incineration planning are largely the stringency of emission standards and the impact on the facility surrounding areas. However, potential reuse and recycling strategies for incineration ash should also be taken into account to be part of the sustainable waste management plan. This paper introduces the different types of sludge generated in Hong Kong; predicts the characteristics of their ashes after incineration; and evaluates the potential of ash reuse and recycling strategies, e.g. land applications and construction materials, in according to their unique nature and application goals. Although both scientific principles and engineering feasibility are core consideration factors for beneficial uses of incineration ash, rigorous campaign for the public acceptance will be essential toward the success of such implementation.
DescriptionSymposium Theme: How Sustainable Development Matters: The Search for Joined-up Disciplines
Symposium Paper
Persistent Identifierhttp://hdl.handle.net/10722/63206

 

DC FieldValueLanguage
dc.contributor.authorShih, Ken_HK
dc.date.accessioned2010-07-13T04:18:32Z-
dc.date.available2010-07-13T04:18:32Z-
dc.date.issued2009en_HK
dc.identifier.citationThe 1st Kadoorie Institute Research Symposium, Hong Kong, 25-26 May 2009.-
dc.identifier.urihttp://hdl.handle.net/10722/63206-
dc.descriptionSymposium Theme: How Sustainable Development Matters: The Search for Joined-up Disciplinesen_HK
dc.descriptionSymposium Paper-
dc.description.abstractAt present, landfilling is the only means to dispose of nearly 900 tonnes of dewatered waste sludge generated in Hong Kong everyday. The Environmental Protection Department of Hong Kong has chosen sludge incineration to resolve this issue, but it should be further noticed that this approach still results in residual ashes that require proper stabilization prior to be landfilled. A sustainable solution in waste management should develop a closed-loop for material flow by reusing and recycling. Current focuses on sludge incineration planning are largely the stringency of emission standards and the impact on the facility surrounding areas. However, potential reuse and recycling strategies for incineration ash should also be taken into account to be part of the sustainable waste management plan. This paper introduces the different types of sludge generated in Hong Kong; predicts the characteristics of their ashes after incineration; and evaluates the potential of ash reuse and recycling strategies, e.g. land applications and construction materials, in according to their unique nature and application goals. Although both scientific principles and engineering feasibility are core consideration factors for beneficial uses of incineration ash, rigorous campaign for the public acceptance will be essential toward the success of such implementation.-
dc.languageengen_HK
dc.publisherKadorrie Institute, the University of Hong Kong.-
dc.relation.ispartofKadoorie Institute Research Symposium, 2009-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleIncinerating Hong Kong water treatment sludge: the potential of ash reuse and recyclingen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailShih, K: kshih@hku.hken_HK
dc.identifier.authorityShih, K=rp00167en_HK
dc.description.naturepostprint-
dc.identifier.hkuros163206en_HK
dc.identifier.spage1-
dc.identifier.epage15-
dc.publisher.placeHong Kong-
dc.customcontrol.immutablesml 130327-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats