Phosphoric Acid as an Aid to Clarification, and Observations on Liming Techniques a N D Mud Volumes

The contents of this paper are based on experimenThe most important part of the procedure was to tal and practical observations collected over the past establish whether the settling apparatus gave comyears. parable results to the factory or not, and whether there was a correlation. between the. two laboratory settling (1) An Investigation into the of Laboratory tubes. Initially this latter point was markedly different Clarification Tests and a Comparison of the Difuntil the tubes were fed in parallel rather than in ferent Liming Techniques series by the circulating pump. Following along the lines of work done by C. W. Davis of the C.S.R. Co., Australia, a series of experiments were carried out to determine the effects of different liming techniques using a laboratory settling apparatus.