Removal of metals from water using fish scales as a bio adsorbent

Abstract

The contamination of water with extensive metal concentrations has been an extraordinary harmful and have unfriendly impact on environment. Biosorption is one of the natural treatments that have raised innovation for the removal of metal from fluid and is found more ecological friendly. The removal of trace metal concentrations from wastewater by using bioadsorbent prepared from the fish scales was determined during this study. Biosorption treatment was used by the application of fish scale to remove, copper, lead, chromium, cadmium, and arsenic from synthetic wastewater. During this study batch and column methods were applied by using varying doses, rpm, and contact time of the adsorbent were followed. The batch study at dose of 250 mg per 50 ml of wastewater showed maximum removal of copper 95% and arsenic 68 %. During the column study 20 g of bioadsorbent at flow rate one litre per 120 minutes at 2 hours contact time the removal of five metals were investigated, whereas the removal percent of copper was 99 %, chromium 96 %, lead 99 %, cadmium 98 %, and arsenic 98.3% was observed during the experiments on the synthetic wastewater treatment. The wastewater and treated water samples were analyzed through atomic absorption spectrophotometer. The present study investigated fruitful utilization of fish scales as bioadsorbent.