TY - JOUR
T1 - Coagulation monitoring in surface water treatment facilities
AU - Kan, Chichuan
AU - Huang, Ch-Hpin
PY - 1998/12/1
Y1 - 1998/12/1
N2 - 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.
AB - 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.
KW - Coagulation
KW - Monitoring
KW - Photometric dispersion analyzer
KW - Water treatment
UR - http://www.scopus.com/inward/record.url?scp=1542396052&partnerID=8YFLogxK
U2 - 10.1016/S0273-1223(98)00465-X
DO - 10.1016/S0273-1223(98)00465-X
M3 - Article
AN - SCOPUS:1542396052
VL - 38
SP - 237
EP - 244
JO - Water Science and Technology
JF - Water Science and Technology
SN - 0273-1223
IS - 3
ER -