Phosphate removal from industrial wastewater effluent using modified coal fly ash

Abstract

ABSTRACT Phosphate in a water act as a primary nutrient for the algae and water bodies present in that water. This present phosphate is also responsible for the excess growth of algae through eutrophication in stationary water. High level of phosphate reduces the oxygen present in the water. Reduced oxygen is indirectly harmful to aquatic life present in the water. Excessive growth of algae can be reduced by removing the phosphate from water. Coal based fly ash (CFA) using adsorption method proved itself best technique for the removal of phosaphate from water. Oxides of aluminum iron and calcium in CFA is responsible for the phosphate adsorption from water. In this research work laboratory scale experiments were carried out using (CFA) and Modified coal based fly ash (MCFA). An effect of adsorbent concentration, contact time, pH and temperature were investigated for the phosphate removal from water. Keywords: Modified coal fly ash; Phosphate; Adsorption isotherm; Adsorbent