Rapid human growth has resulted with the emergence of various environmental problems ranging from
depletion of natural resources to environmental pollution. In many countries in the ASEAN region,
improper waste management has been reported to be one of the three main contributors to environmental
degradation [1]. This is due to the fact that the increase in waste generation is not in line with the
advancement in waste management system. For example, Malaysia landfills 95% of the approximately
30,000 tonnes of waste generated daily into existing waste disposal sites, while Indonesia and Nepal
landfills more than 70% and 63% of the waste collected, respectively