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Dr. Nadavala Siva Kumar

Associate Professor

Faculty

كلية الهندسة
Dept. of Chemical Engineering, College of Engineering, Building no#3, Room No 1C#54, King Saud University, P.O. Box - 800, Riyadh 11421, Saudi Arabia

Equilibrium and Kinetic Studies of Biosorptive Removal of 2,4,6-Trichlorophenol from Aqueous Solutions Using Untreated Agro-Waste Pine Cone Biomass

Kumar*, Nadavala Siva . 2019

The present work discusses the adsorptive removal of a phenolic pollutant, i.e., 2,4,6-trichlorophenol (TCP), using low cost untreated agricultural waste pine cone powder (PCP). The present biosorbent was thoroughly characterized with the help of FTIR, SEM, XRD, and CHN analysis. The presence of amine (-NH2), hydroxyl (-OH) and carbonyl (C=O) functional groups was detected by the FTIR analysis. The important biosorption factors like agitation time, biomass dosage, initial adsorbate concentration, and the initial pH were examined by batch studies. The biosorption kinetic process was fast, reaching equilibrium in 75 min. The experimental kinetic data revealed an excellent agreement with the pseudo second order (PSO) model. On the other hand, the Langmuir isotherm model best described the equilibrium data with the maximum biosorption capacity (qmax) of 243.90 mg/g. These values are better than the adsorption capacities of most agro-based untreated adsorbents previously reported in the literature. Owing to fast removal rates and high biosorption capacity, PCP can be used for cost-effective treatment of TCP from aqueous streams.

Volume Number
7
Issue Number
10
Pages
757
more of publication
publications

Catalytic isomerization of n-hexane to its corresponding branched liquid hydrocarbon isomers by three different ionic liquids (ILs) having general formula; [BmimCl·2AlCl3], [BPyCl·2AlCl3…

by Nadavala Siva Kumar
2019
publications

The present work discusses the adsorptive removal of a phenolic pollutant, i.e., 2,4,6-trichlorophenol (TCP), using low cost untreated agricultural waste pine cone powder (PCP). The present…

by Nadavala Siva Kumar*, Mohammad Asif
2019