AWWA JAW48534

The coagulation kinetics of polyaluminum chloride (PACl) and alum applied to kaolin clay suspensions were compared in batch experiments. Increasing aluminum (Al) dosages reduced the time required for particles destabilization and increased the rate at which the number of primary particles decreased. PACl worked faster than alum. Photometric dispersion analysis showed that increasing Al Dosages decreased the time required for floc to form. Again, this rate was faster with PACl than with alum. Increasing the Al dosage accelerated the flocculation rate because it increased collision-attachment efficiency and increased particulate volume. Further results are discussed. Includes 28 references, tables, figures.

Product Details

Edition:

Vol. 90 - No. 10

Published:

10/01/1998

Number of Pages:

11

File Size:

1 file , 880 KB