MIT-World Peace University (MIT-WPU) is a top educational institute located in Pune, India. It is recognized within&nbsp;UGC under Government of Maharashtra Act No. XXXV 2017.&nbsp;

It is part of the MIT group of institutions (established in 1983) which covers 10+ campuses across India and has more than 50,000+ students enrolled across various disciplines at a given point of time. The institute houses 15 schools ranging from Engineering &amp; Technology, Design, Pharmacy, Commerce, Governance among others. It offers undergraduate, postgraduate and PhD programs among different disciplines.&nbsp;

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MIT World Peace University

In the present work, the adsorption of nickel ions from leachate sample by activated carbon prepared from seeds of DelonixRegia was studied. The activated carbon prepared by pretreatment with KOH was subjected to SEM, XRD and FTIR analysis. Theinfluences of different experimental parameters on nickel uptake were investigated such as sorption time, final solution pH,adsorbent dosage and temperature. The experimental data were correlated to different kinetic and adsorption models andthe corresponding kinetic parameters were determined. The % removal was found to be 75.03% and follows pseudofirstorder kinetic model for Ni. These parameters are considered fundamental for further studies involving the scale-up of theprocess for continuous studies

School of Chemical Engineering

Engineering and Technology

World University root node

International Journal of Science Technology & Engineering

Removal of Heavy Metal Ions from Leachate using Natural Adsorbent Delonix Regia (DRAC)

Selection of solvent is the crucial factor in development of a successful solvent extraction process. The equilibrium data needed pertain to selectivity and distribution coefficients for each individual components present in the system. In continuation with earlier work, the results of an attempt to provide a theoretical basis for predicting a suitable solvent for extracting ethanol from its aqueous solution are presented in this work. The approach used is based on the 3-D Hansen Solubility Parameters. The results obtained are compared for prediction of better solvent for separation with maximum error obtained 9.37%.

Separation Science and Technology

Prediction of effectiveness of solvent using distribution coefficient calculation in solvent extraction with the help of Hansen solubility parameters

It has been widely recognized that heavy metal removal by activated carbon adsorption is due to the surface complex formation between the metal ions and the acidic surface functional groups. The present study focuses to investigate the possibility of the utilization of activated carbon prepared from groundnut shell as a low cost adsorbent material for the adsorption of heavy metal present in the leachate. Batch experiments were conducted to determine the effect of contact time, pH, adsorbent dosage, speed of agitation, temperature. Experimental data was evaluated to find out kinetic characteristics of the adsorption process. The isothermal data was well described by the Freundlich and D-R adsorption model with a fit (R2 = 0.964). The maximum % removal of Nickel ions was observed to be 95% at pH =10 with speed of agitation = 500 rpm and 25ºC temperature.

International Journal of Chemical Science

Adsorption of nickel ions from leachate on groundnut shell activated carbon

Liquid–liquid equilibrium data for the system consisting of toluene, n-heptane and Aliquat 336 ionic liquid was obtained at 303.15 K and atmospheric pressure. The values of distribution coefficient and selectivity were evaluated. Mathematical model relating distribution coefficient and dispersion, dipolar interaction and hydrogen bonding has been developed. Hansen’s solubility parameters were used to determine the parameters. The model was applied for various ionic liquids as solvents. The model predicted the trends similar to the trend reported in the literature. Thus model can predict better solvent for the given extraction application. This methodology has great potential to act as a knowledge-based framework to aid development of new tailor-made solvents. This will save cost and time in experimentation and analysis.

School of Computer Engineering & Technology

Extraction of toluene and n- heptane mixture using ionic liquid Aliquat 336 and mathematical modeling for solvent selection

This paper describes the equilibrium, kinetics and process mechanism studies on biosorption of lead ions fromaqueous solution using ‘Aspergillus niger’ in a batch process. The results indicate that biosorption of lead is influencedby various experimental parameters such as initial concentration of lead, amount of biomass used, variation in pH ofsolution and agitation speed. The lead uptake by biomass was quantitatively evaluated using sorption isotherms likeFreundlich and Langmuir isotherm. The results indicate that Langmuir isotherm model describes the present data verywell indicating favorable biosorption. Since the process follows pseudo second order kinetics, the mechanism ofbiosorption of lead by Aspergillus niger can be explained by shrinking core model.