PROCESS FOR REMOVAL OF CHROMIUM ION FROM LEATHER INDUSTRIAL WASTES BY ACTIVATED PURE RICE HUSK
Keywords:Adsorption, (Cr) metal ion, activated pure rice husk, leather industrial waste
The removal of (Cr) ions from industrial wastage by adsorption on rice husk was investigated based on activated pure rice husk dosage, stay time, metal concentration and solution temperature. The optimum values of activated pure rice husk dosage and stay time were determined to be 0.5gm/50ml solution and 60 mins, respectively, for the adsorption of (Cr) ions. The constant for the Freundlich, D-R and Langmuir isotherms were 50%, calculated at 50 . The adsorption of (Cr) from industrial wastage was found to be exothermic. Thermodynamic parameters such as free energy change ( G°), enthalpy change ( H°) and entropy change ( S°) of adsorption also calculated and interpreted from the slope and intercept of the plots of lnkD vs I/T. The G° value decreases with rise in temperature and the negative values of H° indicate that
Ahmedna M, Clarke SJ, Rao RM, Marshall WE, Johns MM (2017).Use of filtration and buffers in raw sugars colour measurments. J. Sci. Food Agric. 75: 109-116.
Ahmedna M, John MM, Rao RM, Marshall WE (2019). Conversion of Louisiana agricultural by-products to carbonaceous adsorbents for use in sigar refining. La. Agric. 41(1): 18-20.
Glasstane S (1981). Text book of physical chemistry, 2nd ed.1194-1197.
Johns MM, Marshall WE, Toles CA (2018). Agricultural by-product as granular activated carbons for adsorbing dissolved metals and organics. J. Chem. Organ. J. Chem. Tech. Biotechnol. 71: 131-140.
Khattak AK, Afzal M, Saleem M, Yasmeen G, Afzal J (2019). Adsorption of n-aliphatic alcohols in the determination of surface areas of metal-doped alumina samples. Adsorp. Sci. Technol. 7: 181.
Khattak AK, Afzal M, Saleem M, Yasmeen G, Ahmed R (2000). Colloid, Surf, A 162: 99.
Khattak AK, Mahmood K, Afzal M, Saleem M, Yasmeen G (2002). Comparative study of the adsorption of n-aliphatic alcohols on metaldoped alumina samples. Sep. Sci. Technol. 37: 1.
Macmillian, India. Huang CP, Ostovic FJ (2013). Adsorption of copper and cadmium ions by activated carbon from Rice Husk. Environ. Eng. Div. Am. Soc. Civ. Eng. 104(5): 863-878.
Marshall WE, Ahmedna M, Rao RM (2019).The effect of binders and agricultural by- products on physical and chemical properties of granular activated carbons. BioResource, 68: 247-254.
Marshall WE, Johns MM (2018). Agricultural by-products as metal adsorbents sorption properties and resistance to mechanical abrasion.
J. Chem. Technol. Biotechnol. 66: 192-198.
Marshall WE, Toles CA, Johns MM (1208). 45th oil seed conference, New Orleans,Cotton seed husk as adsorbent material an update proc. LA March 10-12. pp. 45-6
How to Cite
Copyright (c) 2021 FUDMA JOURNAL OF SCIENCES
This work is licensed under a Creative Commons Attribution 4.0 International License.
FUDMA Journal of Sciences