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Ecological network analysis for an industrial solid waste metabolism system.

Yuru Guan1, Guohe Huang2, Lirong Liu3

  • 1Sino-Canada Resources and Environmental Research Academy, North China Electric Power University, Beijing, 102206, China.

Environmental Pollution (Barking, Essex : 1987)
|October 21, 2018
PubMed
Summary

Industrial solid waste (ISW) management requires understanding sector relationships. This study introduces a new model to analyze ISW metabolism, guiding reduction policies for sectors like mining and energy transformation.

Keywords:
Ecological network analysisGuangdongIndustrial solid wasteSource and waste reductionWaste input-output analysis

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Area of Science:

  • Environmental Science
  • Industrial Ecology
  • Waste Management

Background:

  • Rapid industrialization generates increasing amounts of industrial solid waste (ISW).
  • Effective ISW metabolism studies are crucial for waste reduction at the source.
  • Existing models may not fully capture inter-sectoral ISW production relationships.

Purpose of the Study:

  • To develop a novel composite waste input-output (WIO) model for ISW analysis.
  • To examine ISW production and inter-sectoral dependencies.
  • To evaluate ISW utilization levels and guide reduction policies.

Main Methods:

  • Development of a composite Waste Input-Output (WIO) model.
  • Application of extended network control and utility analysis within ecological network analysis.
  • Analysis under two scenarios: common industrial solid waste (CISW) and hazardous waste (HW).
  • Introduction of comprehensive utilization analysis for ISW.

Main Results:

  • Indirect flow analysis reveals internal ISW metabolism structures.
  • Mining sectors generate significant direct ISW with low utilization but have symbiotic relationships.
  • The energy transformation (EH) sector (CISW) and paper manufacturing (MP) sector (HW) act as key controllers with high direct generation intensity.

Conclusions:

  • The developed WIO model effectively analyzes ISW metabolism and inter-sectoral dynamics.
  • Identifying key sectors and their relationships provides a foundation for targeted ISW reduction policies.
  • Findings support evidence-based strategies for managing industrial solid waste in China and globally.