Abstract

In the present study, the usage potential of sawdust as a forest industry waste was evaluated for the treatment of colored industrial effluents containing Fast Green FCF synthetic dye. The effects of various environmental variables such as pH, biosorbent amount, synthetic dye concentration and contact time on the dye removal ability of biosorbent material were studied in batch operating conditions. The kinetic and equilibrium studies were performed to elucidate the dye biosorption behavior of biosorbent. The synthetic dye biosorption capacity of biosorbent was highly affected by the environmental conditions. The kinetic and equilibrium studies showed that Elovich and Langmuir models were the best models for the elucidation of dye removal behavior of biosorbent. Based on Langmuir model, the maximum monolayer biosorption capacity under the optimum environmental conditions was estimated to be 26.834 mg g-1. The obtained results revealed that the forest industry waste biomass used has usage potential for the treatment of synthetic dye pollution in aquatic environments.

References

[1] Rangabhashiyam S, Sujata L, Balasubramanian P. Biosorption characteristics of methylene blue andmalachite green from simulated wastewater onto Carica papaya wood biosorbent. Surf Interfaces. 2018;10: 197-215.
[2] Santos SCR, Boaventura RAR. Adsorption of cationic and anionic azo dyes on sepiolite clay:Equilibrium and kinetic studies in batch mode. J Environ Chem Eng. 2016; 4: 1473-1483.
[3] Reck IM, Paixão RM, Bergamasco R, Vieira MF, Vieira AMS. Removal of tartrazine from aqueoussolutions using adsorbents based on activated carbon and Moringa oleifera seeds. J Clean Prod. 2018; 171:85-97.
[4] Li C, Wang X, Meng D, Zhou L. Facile synthesis of low-cost magnetic biosorbent from peach gumpolysaccharide for selective and efficient removal of cationic dyes. Int J Biol Macromol. 2018; 107: 1871-1878.
[5] Konicki W, Helminiak A, Arabczyk W, Mijowska E. Adsorption of cationic dyes onto Fe@graphitecore–shell magnetic nanocomposite: Equilibrium, kinetics and thermodynamics. Chem Eng Res Des. 2018;129: 259-270.
[6] Nayak AK, Pal A. Green and efficient biosorptive removal of methylene blue by Abelmoschusesculentus seed: Process optimization and multi-variate modeling. J Environ Manage. 2017; 200: 145-159.
[7] dos Santos A, Viante MF, Pochapski DJ, Downs AJ, Almeida CAP. Enhanced removal of p-nitrophenolfrom aqueous media by montmorillonite clay modified with a cationic surfactant. J Hazard Mater. 2018;355: 136-144.
[8] Lagergren S. About the theory of so-called adsorptıon of soluble substances. K Sven VetenskapsakadHandl. 1898; 24: 1-39.
[9] Ho YS. Review of second-order models for adsorption systems. J Hazard Mater. 2006; 136: 681-689.
[10] Chien S, Clayton W. Application of Elovich equation to the kinetics of phosphate release and sorptionin soils. Soil Sci Soc Am J. 1980; 44: 265-268.
[11] Weber WJ, Morris JC. Kinetics of adsorption on carbon from solution. J Sanit Eng Div Am Soc CivEng. 1963; 89: 31-60.
[12] Mokhtar N, Aziz EA, Aris A, Ishak WFW, Mohd Ali NS. Biosorption of azo-dye using marine macroalga of Euchema spinosum. J Environ Chem Eng. 2017; 5: 5721-5731.
[13] Albadarin AB, Solomon S, Daher MA, Walker G. Efficient removal of anionic and cationic dyes fromaqueous systems using spent Yerba Mate “Ilex paraguariensis”. J Taiwan Inst Chem Eng. 2018; 82: 144-155.
[14] Freundlich HMF. Over the adsorption in solution. Z Phys Chem. 1906; 57: 385-470.
[15] Langmuir I. The adsorption of gases on plane surfaces of glass, mica and platinum. J Am Chem Soc.1918; 40: 1361-1403.
[16] Dubinin MM, Radushkevich LV. Equation of the characteristic curve of activated charcoal. Proc AcadSci Phys Chem Sec USSR. 1947; 55: 331-333.
[17] Guo H, Bi C, Zeng C, Ma W, Yan L, Li K, et al. Camellia oleifera seed shell carbon as an efficientrenewable bio-adsorbent for the adsorption removal of hexavalent chromium and methylene blue fromaqueous solution. J Mol Liq. 2018; 249: 629-636.
[18] Agarwal S, Gupta VK, Ghasemi M, Azimi-Amin J. Peganum harmala-L Seeds adsorbent for the rapidremoval of noxious brilliant green dyes from aqueous phase. J Mol Liq. 2017; 231: 296-305.