Abstract
The fractal growth characteristics of flocs in flocculation process in water treatment was discussed based on diffusion-limited aggregation (DLA) mechanism. Modern structure characterization technology was employed to evaluate the impact of coagulant dosage and slow stirring speed, etc. on the evolution of floc configuration and structure. Combining macroscopic flocculation effect with microscopic floc morphology, accurate quantitative description and interpretation of the flocculation process can be achieved to predict flocculation effect. Moreover, a new fractal dimension called fractal dimension of floc growth was proposed. Feasibility study on its competency of demonstrating the flocculation effect showed that the fractal dimension of floc growth could be used to characterize the variation of floc size and strength in flocculation process and that there was a good correlation between fractal dimension and residual turbidity at different turbidity of raw water. Thereby, the index, capable of reflecting the changes of flocculation effect can be used to optimize flocculation conditions, enhance flocculation efficiency, improve the quality of outflow and cut down the cost of water treatment.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
