A comparative study on the efficiency of KOH and H3PO4 impregnated jackfruit leaf based carbon as adsorbent for removal of Cr (VI) from its aqueous solution

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2017 by IJETT Journal
Volume-45 Number-4
Year of Publication : 2017
Authors : Merlin Thomas,Sagar P. Patel, Ankit V. Patel, Jigar V. Patel
DOI :  10.14445/22315381/IJETT-V45P238


Merlin Thomas,Sagar P. Patel, Ankit V. Patel, Jigar V. Patel "A comparative study on the efficiency of KOH and H3PO4 impregnated jackfruit leaf based carbon as adsorbent for removal of Cr (VI) from its aqueous solution", International Journal of Engineering Trends and Technology (IJETT), V45(4),176-182 March 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

This research work investigates the application of KOH and H3PO4 impregnated jackfruit leaf powder to remove Cr (VI) from wastewater. The removal characteristics of Cr (VI) from wastewater was investigated under various operating variables like contact time, adsorbent dosage, initial metal concentration, solution pH, temperature and stirring speed. The results showed that the H3PO4 impregnated jackfruit leaf powder is a better adsorbent for Cr (VI) from waste water than KOH impregnated jackfruit leaf powder. The experimental results were found to fit well with Langmuir and Freundlich isotherms. The maximum adsorption capacity of the KOH impregnated jackfruit leaf powder was found to be 62.7 mg/g and that of H3PO4 impregnated jackfruit leaf powder was found to be 68.37 mg/g.


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Cr (VI), adsorption, Jackfruit leaf powder, adsorption isotherm.