Adsorption Studies of Nitrate on Activated Carbon derived from Helianthus Annuus
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 2014, Vol 3, Issue 12
Abstract
The present study deals with removal of nitrate from aqueous solution using low cost activated carbon prepared from helianthus annuus cob. In adsorption solute present in dilute concentration in liquid or gas phase is removed by contacting with suitable solid adsorbent so that the transfer of component first takes place on the surface of the solid and then into pore of the solid. Batch adsorption study were conducted by varying the contact time, adsorbent dosage & pH were studied. For physically activated carbon the optimum contact time is 50min,45min and 40min for 300µ, 150µ and 75µ respectively and for chemically(NH4Cl) activated carbon is 45min,40min and 35min for 0.25,0.5 and 0.75 IR respectively. And the optimum dosage for physically activated carbon is 1000mg, 900mg and 800mg for 300µ,150µ,and 75µ respectively and for chemically activated carbon is 700mg ,600mg and 400mg for 0.25,0.5 and 0.75IR respectively for 100mL of sample. And the optimum pH for physically activated carbon is 1.5,1.5,1.5 for 300µ,150µ,75µ respectively and optimum pH for chemically activated carbon is 1.5,1.5,1.5 for 0.25,.50,0.75IR respectively.
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