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Computer model for municipal solid waste treatment in developing countries.

Amit Jain1, Harsangeet Kaur, Sunil Khanna

  • 1Department of Biotechnology and Environmental Sciences, Thapar Institute of Engineering and Technology, Patiala 147004, India.

Environmental Science & Technology
|June 15, 2005
PubMed
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This study developed a computer model for cost-effective municipal solid waste management in developing countries. For Amritsar, India, landfilling, composting, and biomethanation were found to be income-generating, unlike incineration.

Area of Science:

  • Environmental Engineering
  • Waste Management Science
  • Computational Modeling

Background:

  • Existing integrated solid waste management (ISWM) models are unsuitable for developing nations due to unique municipal solid waste (MSW) characteristics.
  • Developing countries face challenges like high organic content, informal waste sectors, and scavenger activities impacting waste management.

Purpose of the Study:

  • To develop a computer program for determining the least-cost treatment and disposal system for municipal solid waste (MSW).
  • To adapt ISWM models for developing countries by considering specific local waste characteristics.

Main Methods:

  • A computer model was created to analyze various waste treatment and disposal technologies.
  • The model was applied to the Indian city of Amritsar, using its typical MSW data (500 ton/day, 45% moisture, 30% volatile matter, 1500 kcal/kg calorific value).

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Main Results:

  • Incineration in Amritsar incurs an expenditure of USD 6.62 per ton of MSW.
  • Landfilling, composting, and biomethanation generate income of USD 0.13, USD 0.20, and USD 0.23 per ton of MSW, respectively.
  • The model highlighted interdependencies within the waste management sector.

Conclusions:

  • The developed computer model is effective for optimizing waste management systems in developing countries.
  • Accurate, quality data is crucial for the model's reliable application and accurate results.
  • Cost-effective waste management strategies in Amritsar favor recycling and organic treatment over incineration.