Ahmadpour, A., Tahmasbi M., Bastami, T. R. and Besharati, J. A., (2009). Rapid removal of cobalt ion from aqueous solutions by almond green hull. J. Hazard. Mater., 166(2-3), 925-930.
Awad, F. S., AbouZied, K. M., Abou El-Maaty, W. M., El-Wakil, A. M. and El-Shall, M. S., (2020). Effective removal of mercury (II) from aqueous solutions by chemically modified graphene oxide nanosheets. Arab. J. Chem., 13, 2659-2670.
Barron-Zambrano, J., Laborie, S., Viers, P., Rakib, M. and Durand, G. (2004). Mercury removal and recovery from aqueous solutions by coupled complexation–ultrafiltration and electrolysis. J. Membrane Sci., 229(1-2), 179-186.
Das, A. K., Saha, S., Pal A. and Maji, S. K., (2009). Surfactant-modified alumina: An efficient adsorbent for malachite green removal from water environment. J. Environ. Sci. Health, A., 44(9), 896-905.
Das, R., Giri, S., Muliwa, A. M. and Maity, A., (2017). High-performance Hg(II) removal using thiol-functionalized polypyrrole (ppy/maa) composite and effective catalytic activity of Hg(II)-adsorbed waste material. ACS Sustain. Chem. Eng. Fail. Anal., 5(9), 7524-7536.
Dubinin, M. and Radushkevich, L. (1947). Equation of the characteristic curve of activated charcoal. Chem. Zentr. 1(1), 875.
Edrissi, M. and Norouzbeigi, R. (2008). Taguchi optimization for combustion synthesis of aluminum oxide nano particles. Chin. J. Chem., 26(8), 1401-1406.
Ersoy, B., and Çelik, M.S. (2003). Effect of hydrocarbonchain length on adsorption of cationic surfactants onto clinoptilolite. Clays Clay Miner.,251(2),172-80.
Esfandian, H., (2015). Removal of diazinon from aqueous solutions in batch systems using cu-modified sodalite zeolite: An application of response surface methodology. Int. J. Eng., 28(11), 1552-1563.
Freundlich, H. (1932). Of the adsorption of gases. Section ii. Kinetics and energetics of gas adsorption. Introductory paper to section II. Trans. Faraday Soc., 28, 195-201.
Ghadi, A. and Hosseini, S., (2019). Development of a novel method for nitrate sorption: An application of taguchi method. Desal. Water Treat., 141, 133-139.
Ghodbane, I. and Hamdaoui, O., (2008). Removal of mercury (II) from aqueous media using eucalyptus bark: Kinetic and equilibrium studies. J. Hazard. Material., 160(2), 301-309.
Ghorbani, M., Esfandian, H., Taghipour, N. and Katal, R. (2010). Application of polyaniline and polypyrrole composites for paper mill wastewater treatment. Desal., 263(1-3), 279-284.
Gupta, V. (2009). Application of low-cost adsorbents for dye removal–a review. J. Environ. Manag., 90(8), 2313-2342.
He, Z., Siripornadulsil, S., Sayre, R. T., Traina, S. J. and Weavers, L. K. (2011). Removal of mercury from sediment by ultrasound combined with biomass (transgenic chlamydomonas reinhardtii). Chemosphere. 83(9), 1249-1254.
Hinkelmann, K. and Kempthorne, O. (2012). Design and analysis of experiments, special designs and applications. John Wiley & Sons.
Khan, H., Malook, K. and Shah, M. (2020). Synthesis, characterization, and electrical properties of polypyrrole–bimetallic oxide composites. J. Appl.Poly. Sci., 137,47680-47689.
Langmuir, I., (1918). The adsorption of gases on plane surfaces of glass, mica and platinum. J. Am. Chem. Soc., 40(9), 1361-1403.
Le, T-H., Kim, Y. and Yoon, H. (2017). Electrical and electrochemical properties of conducting polymers. Polym., 9 (150), 1-32.
Leppert, D. (1990). Heavy metal adsorption with clinoptilolite zeolite: Alternatives for treating contaminated soil and water.
Li, Z., Sun, X., Luo, J., Hwang, J. and Crittenden, J. (2002). Unburned carbon from fly ash for mercury adsorption: II. Adsorption isotherms and mechanisms. J. Mineral. Mater. Charact. Eng., 1(2), 79-96.
Lin, Z., Pan, Z., Zhao, Y., Qian, L., Shen, J., Xia, K., Guo, Y. and Qu, Z. (2020). Removal of hg2+ with polypyrrole-functionalized fe3o4/kaolin: Synthesis, performance and optimization with response surface methodology. Nanomater., 10(7), 1370.
Machida S., Miyata S. and Techagumpuch A., (1989). Chemical synthesis of highly electrically conductive polypyrrole. Synthet. Metal., 31(3), 311-318.
Omraei, M., Esfandian, H., Katal, R. and Ghorbani, M. (2011). Study of the removal of zn (ii) from aqueous solution using polypyrrole nanocomposite. Desal., 271(1-3), 248-256.
Ouznadji Z.B., Sahmoune M.N. and Mezenner N.Y., (2016). Adsorptive removal of diazinon: Kinetic and equilibrium study. Desalination and Water Treatment. 57(4), 1880-1889.
Perić, J., Trgo, M., Vukojević Medvidović, N.(2004). Removal of zinc, copper and lead by natural zeolite-a comparison of adsorption isotherms. Water Res., 38(7),1893-1899.
Rapi, S., Bocchi, V. and Gardini, G. P. (1988). Conducting polypyrrole by chemical synthesis in water. Synthet. Metal., 24(3), 217-221.
Reynolds, T. D. (1977). Unit operations and processes in environmental engineering. Brooks.
Roy, R. K. (2001). Design of experiments using the taguchi approach: 16 steps to product and process improvement. John Wiley & Sons.
Street, A. A. (2011). Removal of zinc from aqueous phase by charcoal ash. World Appl. Sci. J., 13(2), 331-340.
Verma, V., Tewari, S. and Rai, J., (2008). Ion exchange during heavy metal bio-sorption from aqueous solution by dried biomass of macrophytes. Bioresour. Technol., 99(6), 1932-1938.
Wang, C., Wu, H. and Chung, S.-L. (2006). Optimization of experimental conditions based on taguchi robust design for the preparation of nano-sized TiO2 particles by solution combustion method. J. Porous Mater., 13(3-4), 307-314.
Xiao, X-f., Yang, N., Wang, Z-l. and Huang, Y-q. (2016). Determination of trace mercury (II) in wastewater using on-line flow injection spectrophotometry coupled with supported liquid membrane enrichment.Anal. Methods., 8, 582-586.
Yin, Y., Allen, H. E., Huang, C., Sparks, D. L. and Sanders, P. F. (1997). Kinetics of mercury (II) adsorption and desorption on soil. Environ. Sci. Technol., 31(2), 496-503.