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Rice straw is find out as agricultural waste material labundantly in india. It is also used in paper industry due to it abundantly available in rice-producing countries. Activated carbon of rice straw (ACRS) was used to remove Cr(VI) from waste water. The Batch process were used to evaluate the effect activated carbon of rice straw for Cr(VI) removal from aqueous solutions. The adsorption studies on pH effect, contact time, adsorbent dose were examined. The removal decreased from 74.2 to 47.2% by increasing the Cr(VI) concentration from 1.5 to 5.0 mg/l. Removal, however, decreased from 80.3 to 7.2% by increasing the adsorbent particle size from 100 μm to 200 μm. The adsorbed dose of Cr (VI) tend to increase with the increase of pH. It has been found that a low cost and high capabilities of the ACRS make it potentially attractive adsorbent for the removal of Cr (VI) from wastewater.

Removal of Cr (VI) Using Low Cost Activated Carbon Developed By Agricultural Waste