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Solid waste management in Macao: practices and challenges.

Jianjun Jin1, Zhishi Wang, Shenghong Ran

  • 1Faculty of Science and Technology, University of Macau, Taipa, Macao, China. ya27402@umac.mo

Waste Management (New York, N.Y.)
|October 29, 2005
PubMed
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Macao faces growing solid waste challenges due to economic development. Incineration is prioritized but nearing capacity, highlighting the need for waste minimization and alternative solutions.

Area of Science:

  • Environmental Science
  • Waste Management

Background:

  • Macao experiences significant increases in solid waste generation driven by economic development and population growth.
  • Domestic solid waste constitutes the primary source of this increasing waste stream.

Purpose of the Study:

  • To analyze solid waste generation trends in Macao.
  • To evaluate current waste disposal methods and their limitations.
  • To identify future challenges in waste management.

Main Methods:

  • Analysis of solid waste generation data from the past decade.
  • Review of waste disposal priorities and infrastructure in Macao.
  • Assessment of incineration capacity and future projections.

Main Results:

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  • Solid waste generation reached 249,255 tons in 2003 (1.52 kg/day per capita), with a consistent upward trend.
  • Over 80% of Macao's waste has been incinerated in the last decade.
  • The Macao Incineration Plant's capacity is projected to reach saturation sooner than anticipated.

Conclusions:

  • Landfilling is deprioritized due to Macao's geographical constraints and high land costs.
  • Despite high costs, incineration is the preferred disposal method, but its limitations pose future challenges.
  • Key future challenges include waste minimization, implementing effective fee systems, and developing alternative treatment capacities.