Chakraborty, Tapos Kumar, Ghosh, Gopal, Akter, Mst. Nowshin, Adhikary, Keya, Islam, Md. Shahnul, Ghosh, Prianka, Zaman, Samina, Habib, Ahsan, Kabir, A. H. M. Enamul. (1400). Biosorption of Reactive Red 120 Dye from Aqueous Solutions by using Mahagoni (Swietenia mahagoni) Wood and Bark Charcoal: Equilibrium, and Kinetic Studies. , 7(4), 905-921. doi: 10.22059/poll.2021.325135.1110
Tapos Kumar Chakraborty; Gopal Chandra Ghosh; Mst. Nowshin Akter; Keya Adhikary; Md. Shahnul Islam; Prianka Ghosh; Samina Zaman; Ahsan Habib; A. H. M. Enamul Kabir. "Biosorption of Reactive Red 120 Dye from Aqueous Solutions by using Mahagoni (Swietenia mahagoni) Wood and Bark Charcoal: Equilibrium, and Kinetic Studies". , 7, 4, 1400, 905-921. doi: 10.22059/poll.2021.325135.1110
Chakraborty, Tapos Kumar, Ghosh, Gopal, Akter, Mst. Nowshin, Adhikary, Keya, Islam, Md. Shahnul, Ghosh, Prianka, Zaman, Samina, Habib, Ahsan, Kabir, A. H. M. Enamul. (1400). 'Biosorption of Reactive Red 120 Dye from Aqueous Solutions by using Mahagoni (Swietenia mahagoni) Wood and Bark Charcoal: Equilibrium, and Kinetic Studies', , 7(4), pp. 905-921. doi: 10.22059/poll.2021.325135.1110
Chakraborty, Tapos Kumar, Ghosh, Gopal, Akter, Mst. Nowshin, Adhikary, Keya, Islam, Md. Shahnul, Ghosh, Prianka, Zaman, Samina, Habib, Ahsan, Kabir, A. H. M. Enamul. Biosorption of Reactive Red 120 Dye from Aqueous Solutions by using Mahagoni (Swietenia mahagoni) Wood and Bark Charcoal: Equilibrium, and Kinetic Studies. , 1400; 7(4): 905-921. doi: 10.22059/poll.2021.325135.1110

Biosorption of Reactive Red 120 Dye from Aqueous Solutions by using Mahagoni (Swietenia mahagoni) Wood and Bark Charcoal: Equilibrium, and Kinetic Studies

Pollution
دوره 7، شماره 4، زمستان 2021، صفحه 905-921    اصل مقاله (545.81 K)
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.22059/poll.2021.325135.1110
نویسندگان
Tapos Kumar Chakraborty* 1؛ Gopal Chandra Ghosh2؛ Mst. Nowshin Akter2؛ Keya Adhikary2؛ Md. Shahnul Islam2؛ Prianka Ghosh1؛ Samina Zaman2؛ Ahsan Habib2؛ A. H. M. Enamul Kabir2
1Department of Environmental Science and Technology, Jashore University of Science and Technology, P.O.Box 7408, Jashore, Bangladesh.
2Department of Environmental Science and Technology, Jashore University of Science and Technology, P.O. Box 7408, Jashore, Bangladesh.
چکیده
This study analyzed the potential use of Mahagoni wood charcoal (MWC) and Mahagoni bark charcoal (MBC) as biosorbent for reactive red 120 (RR 120) dye removal from aqueous solutions. The effect of different operating parameters such as contact time (1–210 min), pH (3–11), adsorbent dose (1–20 g/L), and initial RR 120 concentration (5–70 mg/L) on adsorption processes was studied under batch adsorption experiments. The maximum removal of RR 120 by MWC (78%) and MBC (88%) was achieved when the optimum conditions were initial RR 120 concentration (5 mg/L), pH (3), adsorbents dose (10 g/L) and equilibrium contact time (150 min). The RR 120 adsorption data of MWC and MBC were better described by the Langmuir and Freundlich isotherm models, respectively. The MWC and MBC showed maximum adsorption capacities of 3.806 and 5.402 mg/g, respectively. Kinetic adsorption data of all adsorbents (MWC and MBC) followed the pseudo-second-order model and this adsorption process was controlled by chemisorption with multi-step diffusion. A lower desorption rate advocated that both strong and weak binding forces could exist between RR 120 molecules and adsorbents. The study results revealed that the utilization of either MWC and or MBC as an adsorbent for treating RR 120 is effective and environmentally friendly.
کلیدواژه‌ها
Adsorption efficiency؛ adsorbent؛ anionic dye؛ biomass
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