A study of multistage multifunction column for fine particle separation: Quarterly technical report, October 1, 1996 - December 31, 1996

The overall objective of the research program is to explore the potential application of a new invention involving a multistage column equipped with concentric draft-tubes (hereafter referred to as the multistage column) for fine coal cleaning and other fluid/particle separation processes. The research work will identify the design parameters and their effects on the performance of the separation process. The results of this study will provide an engineering basis for further development of this technology in coal cleaning and in the general areas of fluid/particle separation. In the last quarter, we initiated the wastewater treatment tests program to verify the multifunction features of the multistage column. The set-up of the test equipment and analytic instrument were completed. During this period, we performed a series of oily water cleaning tests