Coagulation monitoring in surface water treatment facilities

Chichuan Kan*, Ch-Hpin Huang

*Corresponding author for this work

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

Coagulant dosing is traditionally determined according to results from jar-tests or operator's experience, which often lead to overdosing or insufficient dosing. In this study, the feasibility of applying an optical monitoring technique to determine chemical dosage and to monitor the coagulation performance in water treatment plants were assessed. To examine, the applicability of the monitor under various operation conditions, series of batch trials in the field were conducted to explore the effects of turbidity, pH and rapid mixing intensity on the effectiveness of coagulation. The performance was directly reflected in the output ratio of the monitor, which proved to be an effective index for the floc size and its settling velocity. Therefore, we consider that the optical monitor is an useful instrument in monitoring coagulation in water treatment.

Original languageEnglish
Pages (from-to)237-244
Number of pages8
JournalWater Science and Technology
Volume38
Issue number3
DOIs
StatePublished - 1 Dec 1998

Keywords

  • Coagulation
  • Monitoring
  • Photometric dispersion analyzer
  • Water treatment

Fingerprint Dive into the research topics of 'Coagulation monitoring in surface water treatment facilities'. Together they form a unique fingerprint.

  • Cite this