The drinking water contamination due to excess fluoride is one of the major health hazard in recent days. When the Fluoride content exceeds the permissible limit as per BIS standards (1–1.5 mg/L), teeth and bone related problems occurs in human. Flurosis is the major problem observed with people drinking Fluoride rich water. Hence in this study the research was done to understand the feasibility of Trichoderma Harzianum fungus as biosorbent in defluoridation. The removal efficiency of Fluoride increased with increase in pH and at 8.5 pH maximum efficiency was found. The batch biosorption was done with 60 minutes of contact time and speed of 100 rpm using biosorbent. SPADNS method was used to determine fluoride concentration. The groundwater samples were taken from Kolar district, Karnataka and were subjected to the batch biosorption for the optimum conditions. The results obtained were 57 and 60% removal for Sample 1 and 2 respectively. Thus the Trichoderma Harzianum proved to be an effective biosorbent in removal of Fluoride from groundwater.
Trichoderma Harzianum, Biosorbent, Defluoridation, Groundwater, Fluoride
