Fly ash and its applications

Monika Kharub

Abstract

Fly ash is one of the largely produced solid wastes in the World. It is generated from combustion of coal in thermal power plants. Because of its large production, disposal and management problem, FA is always remained the biggest concern from centuries. However, several different research studies proposed that FA has diverse applications in different fields such as in construction for concrete production, in agriculture sector and many others. FA has been regarded as an ameliorant for reclaiming the soil. It helps in improving the physical, chemical and biological properties of soil. It is observed that introduction of FA improves soil quality by providing various essential elements such as (K, Na, Zn, Ca, Mg and Fe) which are further helpful in increasing yield in some crops. This paper reviews information about the various attributes of FA in soil such as its role in soil, physical, chemical, biological and biochemical quality. It also discusses about varied applications of FA in varying sectors of agriculture, sludge stabilization, controlling diseases, forestry, wasteland reclamation, soil biota and enzymatic activity.

Abstract

Keywords