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Flocculation control study based on fractal theory.

Ying Chang1, Qian-Jun Liu, Jin-Song Zhang

  • 1Guangzhou Water Supply Co., Guangzhou 510160, China. acerine@sohu.com

Journal of Zhejiang University. Science. B
|September 28, 2005
PubMed
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Fractal dimension effectively measures flocculation, enabling automated control of chemical coagulant dosage for optimized water treatment. This research establishes fractal dimension as a key parameter for self-adjusting water purification systems.

Area of Science:

  • Water treatment technologies
  • Chemical engineering
  • Environmental science

Background:

  • Traditional flocculation control relies on empirical methods.
  • Optimizing chemical coagulant dosage is crucial for efficient water purification.
  • Fractal theory offers a novel approach to understanding aggregate formation.

Purpose of the Study:

  • To investigate the application of fractal theory in flocculation control.
  • To determine if fractal dimension can serve as a primary parameter for automated dosage adjustment.
  • To establish a control model for chemical coagulant dosage based on fractal dimension.

Main Methods:

  • Conducting optimization tests for chemical coagulant dosage.
  • Analyzing the correlation between fractal dimension, aggregate settling, and effluent turbidity.

Related Experiment Videos

  • Implementing a fractal dimension-based flocculation control system.
  • Studying the interdependencies of fractal dimension, coagulant dosage, and turbidity under varying water conditions.

    • Main Results:

    • Fractal dimension accurately reflects flocculation degree and aggregate settling characteristics.
    • A strong correlation was found between fractal dimension and settled effluent turbidity.
    • The fractal dimension demonstrated its utility as a major parameter for real-time flocculation control.
    • Experimental data were gathered for developing a coagulant dosage control model.

    Conclusions:

    • Fractal dimension is a reliable indicator for monitoring and controlling flocculation processes.
    • Automated adjustment of chemical coagulant dosage is achievable using fractal dimension as the primary control parameter.
    • The developed fractal dimension-based control system provides a foundation for advanced, self-acting water treatment solutions.