A Study and Evaluation of Behaviour of High Concentrated Ash Slurry

Abstract

In India, about 75% of total electrical energy is generated from thermal power plants which in turn release about 130 million tones of fly ash as solid waste yearly.Transportation and removal of such a huge amount of fly ash is a major problem faced by the power plants. Presently fly ash is being transported as lean slurry in pipe lines requiring about 80 to 85% of water with more energy input.Recently, high concentrated slurry disposal (HCSD)structure has been introduced to get over of these complications. In this transportation system, ash slurrydoesn’t only flow till it reaches the destination, but also settles down on the ash pond. This studydescribes the geotechnical properties of ash slurry of HCSD system in terms of densities, specificgravity, moisture content, and permeability. Change in properties of field tests with time are alsoshown in graphs.