References

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  2. N. Saranya, E. Nakeeran, M.S.G. Nandagopal, N. Selvaraju, Optimization of adsorption process parameters by response surface methodology for hexavalent chromium removal from aqueous solutions using Annona reticulata Linn peel microparticles, Water Sci. Technol., 75 (2017) 2094–2107.
  3. S. Karthikeyan, M.A. Kumar, P. Maharaja, B.P. Rao, G. Sekaran, Process optimization for the treatment of pharmaceutical wastewater catalyzed by poly sulpha sponge, J. Taiwan Inst. Chem. Eng., 45 (2014) 1739–1747.
  4. S. Rangabhashiyam, N. Anu, N. Selvaraju, Equilibrium and kinetic modeling of chromium (VI) removal from aqueous solution by a novel biosorbent, Res. J. Chem. Environ., 18 (2014) 30–36.
  5. E. Nakkeeran, N. Saranya, M.S.G. Nandagopal, A. Santhiagu, N. Selvaraju, Hexavalent chromium removal from aqueous solutions by a novel powder prepared from Colocasia esculenta leaves, Int. J. Phytorem., 18 (2016) 812–821.
  6. E. Nakkeeran, S. Rangabhashiyam, M.S.G. Nandagopal, N. Selvaraju, Removal of Cr(VI) from aqueous solution using Strychnos nux-vomica shell as an adsorbent, Desal. Wat. Treat., 57 (2016) 23951–23964.
  7. T. Vidhyadevi, A. Murugesan, S.S. Kalaivani, M.A. Kumar, K.V.T. Ravi, L. Ravikumar, C.D. Anuradha, S. Sivanesan, Optimization of the process parameters for the removal of reactive yellow dye by the low cost Setaria verticillata carbon using response surface methodology: thermodynamic, kinetic and equilibrium studies, Environ. Prog. Sustain. Energy, 33 (2014) 855–865.
  8. U.P. Kiruba, P.S. Kumar, K.S. Gayatri, S.S. Hameed, M. Sindhuja, C. Prabhakaran, Study of adsorption kinetic, mechanism, isotherm, thermodynamic and design models for Cu(II) ions on sulphuric acid modified Eucalyptus seeds: temperature effect, Desal. Wat. Treat., 56 (2015) 2948–2965.
  9. K. Anbalagan, P.S. Kumar, K.S. Gayatri, S.S. Hameed, M. Sindhuja, C. Prabhakaran, R. Karthikeyan, Removal and recovery Ni(II) ions from synthetic wastewater using surface modified Strychnos potatorum seeds: experimental optimization and mechanism, Desal. Wat. Treat., 53 (2015) 171–182.
  10. D. Prabu, R. Parthiban, P.S. Kumar, N. Kumari, P. Saikia, Adsorption of copper ions onto nano scale zero-valent iron impregnated cashew nut shell, Desal. Wat. Treat., 57 (2016) 6487–6502.
  11. M. Seenuvasan, K.S. Kumar, G.C.G. Malar, S. Preethi, M.A. Kumar, N. Balaji, Characterization, analysis, and application of fabricated Fe3O4-chitosan-pectinase nanobiocatalyst, Appl. Biochem. Biotechnol., 172 (2014) 2706–2719.
  12. S. Rangabhashiyam, E. Suganya, A.V. Lity, N. Selvaraju, Equilibrium and kinetics studies of hexavalent chromium biosorption on a novel green macroalgae Enteromorpha sp., Res. Chem. Intermed., 42 (2016) 1275–1294.
  13. K. Anbalagan, P.S. Kumar, R. Karthikeyan, Adsorption of toxic Cr(VI) ions from aqueous solution by sulphuric acid modified Strychnos potatorum seeds in batch and column studies, Desal. Wat. Treat., 57 (2016) 12585–12607.
  14. T. Anitha, P.S. Kumar, K.S. Kumar, K. Sriram, J.F. Ahmed, Biosorption of lead(II) ions onto nano-sized chitosan particle blended polyvinyl alcohol (PVA): adsorption isotherms, kinetics and equilibrium studies, Desal. Wat. Treat., 57 (2016) 13711–13721.
  15. A. Saravanan, P.S. Kumar, B. Preetha, Optimization of process parameters for the removal of chromium(VI) and nickel(II) from aqueous solutions by mixed biosorbents (custard apple seeds and Aspergillus niger) using response surface methodology, Desal. Wat. Treat., 57 (2016) 14530–14543.
  16. T. Anitha, P.S. Kumar, K.S. Kumar, B. Ramkumar, S. Ramalingam, Adsorptive removal of Pb(II) ions from polluted water by newly synthesized chitosan-polyacrylonitrile blend: equilibrium, kinetic, mechanism and thermodynamic approach, Process Saf. Environ. Prot., 98 (2015) 187–197.
  17. A. Saravanan, K.A. Kumar, R. Yashwanth, S. Visvesh, P.S. Kumar, Removal of toxic zinc from water/wastewater using eucalyptus seeds activated carbon: non-linear regression analysis, IET Nanobiotechnol., 10 (2016) 244–253.
  18. Y.S. Ho, Citation review of Lagergren kinetic rate equation on adsorption reactions, Scientometrics, 59 (2004) 171–177.
  19. Y.S. Ho, Second-order kinetic model for the sorption of cadmium onto tree fern: a comparison of linear and non-linear methods, Water Res., 40 (2006) 119–125.
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  21. W.J. Weber, J.C. Morris, Kinetics of adsorption on carbon from solution, J. Sanit. Eng. Div., 89 (1963) 31–60.
  22. K. Nithya, A. Sathish, P.S. Kumar, T. Ramachandran, Biosorption of hexavalent chromium from aqueous solution using raw and acid treated biosorbent prepared from Lantana camara fruit, Desal. Wat. Treat., 57 (2016) 25097–25113.
  23. S. Suganya, K. Kayalvizhi, P.S. Kumar, A. Saravanan, V.V. Kumar, Biosorption of Pb(II), Ni(II) and Cr(VI) ions from aqueous solution using Rhizoclonium tortuosum: extended application to nickel plating industrial wastewater, Desal. Wat. Treat., 57 (2016) 25114–25139.
  24. M.A. Kumar, V.V. Kumar, M.P. Premkumar, P. Baskaralingam, K.V. Thiruvengadaravi, D. Anuradha, S. Sivanesan, Chemometric formulation of bacterial consortium-AVS for improved decolorization of resonance-stabilized and heteropolyaromatic dye, Bioresour. Technol., 123 (2012) 344–351.
  25. T.V. Novi, V.V. Kumar, P.S. Kumar, C. Christy, S.S. Lavanyaa, D. Vishnu, A. Saravanan, V.V. Kumar, S. Sivanesan, Review on nano adsorbents: a solution for heavy metal removal from wastewater, IET Nanobiotechnol., 11 (2017) 213–224.
  26. M. Temkin, V. Pyzhev, Kinetics of ammonia synthesis on promoted iron catalysts, Acta Physicochimica U.R.S.S., 12 (1940) 217–222.
  27. E. Gunasundari, P.S. Kumar, Higher adsorption capacity of Spirulina platensis alga for Cr(VI) ions removal: parameter optimization, equilibrium, kinetic and thermodynamic predictions, IET Nanobiotechnol., 11 (2017) 317–328.
  28. M.M. Dubinin, The potential theory of adsorption of gases and vapors for adsorbents with energetically nonuniform surfaces, Chem. Rev., 60 (1960) 235–241.
  29. A. Saravanan, P.S. Kumar, M. Yashwanthraj, Sequestration of toxic Cr(VI) ions from industrial wastewater using waste biomass: a review, Desal. Wat. Treat., 68 (2017) 245–266.
  30. G. Neeraj, S. Krishnan, P.S. Kumar, K.R. Shriaishvarya, V.V. Kumar, Performance study on sequestration of copper ions from contaminated water using newly synthesized high effective chitosan coated magnetic nanoparticles, J. Mol. Liq., 214 (2016) 335–346.