A multi-directional utilization of different ashes

The prospective uses and applications of coal fly ash, bagasse ash and rice husk ash, being generated as a waste, in different types of industries are compared and reviewed. There are several new applications of the ashes, such as raw materials for the preparation of different new materials like glass, hollow micro spheres, cement, ceramics, geopolymers and zeolites, as an adsorbent for different waste water processes, and removal of heavy metals etc. There is a considerable potential for the increased utilization of all such ashes in their raw, additive and refined states for making industrial processes more economical and environment friendly which is strongly suggested.