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Using the backward probability method in contaminant source identification with a finite-duration source loading in a

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Industries polluting rivers pose environmental and health risks. A new numerical model accurately pinpoints pollutant release time and location, improving upon the backward probability method (BPM) for finite-duration industrial discharges.

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Area of Science:

  • Environmental Science
  • Water Resource Management
  • Pollution Control

Background:

  • Industrial effluent discharge is a major cause of river pollution, threatening ecosystems and human health.
  • Existing tools like the backward probability method (BPM) are primarily designed for groundwater or continuous spill scenarios.
  • Current models may produce errors when applied to industrial discharges with finite-duration, constant-rate releases.

Purpose of the Study:

  • To develop a numerical model capable of simulating pollutant sources with both finite-duration and spill injection characteristics.
  • To address the limitations of existing methods in accurately identifying pollutant release parameters from industrial activities.
  • To provide a more precise tool for river pollution source identification.

Main Methods:

  • Development of a novel numerical model to simulate pollutant releases.
  • Adaptation of the model to handle both finite-duration and spill injection scenarios.
  • Verification of the model using two hypothetical case studies and one real-world case.

Main Results:

  • The developed numerical model accurately identifies the release time and location of pollutant sources.
  • The model demonstrates improved performance compared to traditional methods for finite-duration discharges.
  • Successful verification across hypothetical and real-world scenarios confirms model reliability.

Conclusions:

  • The new numerical model offers a significant advancement in identifying industrial pollutant sources in rivers.
  • Accurate source identification is crucial for effective river pollution control and environmental protection.
  • This tool enhances the ability to manage and mitigate the impacts of industrial wastewater discharge.