edited by Xijun Hu (Hong Kong University of Science and Technology) & Po Lock Yue (Hong Kong University of Science and Technology)

With the rapid expansion of the Asia-Pacific economy in the last decade and the recovery after the recent crisis, severe demands will be placed on energy services and the environment. Coping with the volatile oil prices that persist in the market introduces an additional factor into the energy supply and demand equation, not just for countries in this region but also worldwide. Inevitably there will be implications for environmental issues too. The future will see a continuing challenge to balance growth with sustainability in the economic, social and environmental sectors. This conference, a sequel to the immensely successful APCSEET conferences held in Singapore and Australia, is aimed at meeting that challenge by addressing the pertinent issues related to sustainable energy and environmental protection. It provides a forum for participants from academia, industry and government agencies to interact, report on research in progress, and identify opportunities in the fields of sustainable energy and environmental technologies. The presentations include not only technical issues such as air pollution control, wastewater treatment, solid waste management, renewable energy and cleaner production, but also education and policy issues.

• The Concept of Zero Emissions in the 21st Century (M Suzuki)
• Continuous Catalytic Wet Air Oxidation of Phenol in a Trickle Bed Reactor (Q Wu et al.)
• Drying Performance of Refuse Derived Fuel (Y Tatemoto et al.)
• Influence of Temperature on Removal of Sulfur Dioxide and Benzene from Air by Corona Discharge Reactor (N Sano et al.)
• High Quality Building Materials from Domestic and Construction Wastes (J P Barford & Y N Tsui)
• Metal Ion Immobilisation in the Microwave Processing of Sediment Sludge from PCB Manufacturing (Q Gan)
• Characteristic and Efficiency of Hydrogen Sulfide Removal with Heteropoly Compound Absorbent in a Packed Column (R Wang)
• Microscopic Nature and Elemental Composition of Brown Coal Fly Ash Particles from a Large Coal Fired Power Station (L Zou)
• Monitoring on Road Emission with Remote Sensing Technologies (R Gong)
• Treating Fresh Air: Options and Uses (D Pahwa)
• Construction Waste Minimisation (R N Greenwood)
• and other papers