Fundamental study for improvement of dewatering of fine coal/refuse. Annual report, July 1981-July 1982. Volume I

The overall objective of the study is to seek improved methods of dewatering through a better understanding of the filtration and post-filtration processes. As a first step, efforts have been focused on the mechanism of dewatering in terms of basic properties of coal (and refuse) particles and filter cakes and their relations to filtration rate and final cake moisture content. This annual report presents the highlights and accomplishments of the third year of the project. The report is divided into four parts: summary and deliverables; work forecast for the fourth year; detailed description of technical progress; and appendices. Volume I contains the first 3 parts. Progress reports are presented for the following tasks: (1) particle/filter cake characterization; (2) theoretical modelling; (3) experimental measurements of filtration and dewatering; and (4) enhanced dewatering method. 17 references.