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Related Experiment Videos

Simulation program for wastewater coagulation.

H Ratnaweera1, L Lei, O Lindholm

  • 1Norwegian Institute for Water Research (NIVA), Oslo. harsha.ratnaweera@niva.no

Water Science and Technology : a Journal of the International Association on Water Pollution Research
|October 4, 2002
PubMed
Summary

Developing comprehensive simulation models for wastewater coagulation is key to optimizing coagulant dosing. Using multiple influent parameters with partial least squares (PLS) significantly improves dosing efficiency and reduces costs.

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Area of Science:

  • Environmental Engineering
  • Water Treatment Technologies
  • Chemical Engineering

Background:

  • Optimal coagulant dosing in wastewater treatment is hindered by a lack of comprehensive simulation models.
  • Current models often rely on limited influent parameters, leading to inefficiencies.

Purpose of the Study:

  • To present two novel approaches for developing advanced simulation models for wastewater coagulation.
  • To enhance the accuracy and efficiency of coagulant dosing strategies.

Main Methods:

  • Developing algorithmic dosing models using partial least squares (PLS) with multiple influent quality parameters.
  • Integrating a second approach based on coagulant distribution for particle and phosphate removal into existing simulation software.

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Main Results:

  • Models incorporating more online parameters demonstrated significantly higher efficiency in dosing.
  • Testing on full-scale plants showed substantial coagulant savings and improved effluent quality.
  • The integrated module demonstrated accurate calibration and dosage predictions.

Conclusions:

  • Comprehensive influent quality description is crucial for efficient wastewater coagulation modeling.
  • Advanced simulation models can lead to significant economic and environmental benefits in water treatment.
  • The developed approaches offer practical solutions for optimizing coagulant dosing.