Fixed-Bed Column Adsorption Studies of Synthetic Organic Chemicals Using Carbonized and Surface-Modified Carbons from Nipa Palm Leaves

Pereware Adowei

doi:doi:10.11648/j.ijec.20240801.11

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Fixed-Bed Column Adsorption Studies of Synthetic Organic Chemicals Using Carbonized and Surface-Modified Carbons from Nipa Palm Leaves

Pereware Adowei

Published in International Journal of Environmental Chemistry (Volume 8, Issue 1)

Received: 5 December 2023 Accepted: 22 December 2023 Published: 11 January 2024

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Abstract

Batch adsorption isotherm data do not always provide accurate scale-up facts for real systems. Consequently, it is necessary to carry out fixed-bed column adsorption studies, which provide essential design parameters that are necessary for column scale-up. Hence, the objective of this paper was to evaluate the fixed-bed column adsorption studies to remove synthetic organic chemicals (SOC) using carbonized and surface-modified carbons from nipa palm leaves. Carbonized and surface-modified carbons were produced by single-step pyrolysis after soaking the Nipa palm (Nypa fruticans Wurmb) leaves biomass with H₂O, H₃PO₄ and KOH respectively while using chemical oxygen demand (COD) as the index of measurement. The SOCs solutions of concentration 100 mg/L at pH 6.5 were fed into the column from the top in a reservoir at the downward gravity flow rate of 15 mL/min and the effluent collected at the bottom at 30 minutes interval for 4 hours, quantity of the prepared adsorbent was packed in the column to yield the desired bed height of 7.62 cm containing 12.3 g of carbon. The optimum performance (mg cm^-3) of the carbons are 10.16 (PCC), 9.024 (AAC) and 12.442 (BAC) for DMABA; 12.95 (PCC), 10.51 (AAC) and 16.64 (BAC) for kerosene and 9.568 (PCC), 6.651 (AAC) and 13.903 (BAC) for n-propanol) respectively. The breakthrough curve was analyzed using the Adams–Bohart, Thomas, and bed depth service time (BDST) mathematical models. The behaviors of the breakthrough curves were defined by the Thomas model at different conditions. The BDST model showed good agreement with the experimental data, and the high values of correlation coefficients (R²≥ 0.9646) obtained indicate the validity of the bed depth service time model for the present column system.

Published in	International Journal of Environmental Chemistry (Volume 8, Issue 1)
DOI	10.11648/j.ijec.20240801.11
Page(s)	1-11
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Synthetic Organic Chemicals, Adsorption, Fixed-Bed, Nipa Palm, Chemical Oxygen Demand

References

[1]	Abechi, S. E, Gimba, C E, Uzairu, A, and Dallatu, Y A (2013). Preparation and Characterization of activated carbon from Palm Kernel Shell by Chemical Activation. Research Journal of Chemical Sciences. 3(7) 54 -61.
[2]	Abia, A. A.; Horsfall, M. Jr. and Didi, O. (2003). The use of chemically modified and unmodified cassava waste for the removal of Cd, Cu and Zn ions from aqueous solution. Bioresource Technology, 90, (3) 345-348.
[3]	Ademiluyi, F T; Braide, O (2012). Effectiveness of Nigerian Bamboo Activated with Different Activating Agents on the Adsorption of BTX. Journal of Applied Sciences & Environmental Management. 16(3) 267–273.
[4]	Adinata D, Wan Daud WMA, Aroua MK. (2007) Preparation and characterization of activated carbon from palm shell by chemical activation with K₂CO₃. Bioresource Technology 98: 145-49.
[5]	Adowei, P (2015). Adsorption of Some Synthetic Organic Chemicals (SOCs) in Aqueous Solution using Carbonized and Surface-Modified Carbons produced from Nipa Palm (Nypa Fruticans Wurmb) Plant. University of Port Harcourt, Nigeria, Unpublished PhD Thesis.
[6]	Adowei, P; Abia A. A (2016). Chemical Oxygen Demand (COD) Attenuation of Methyl Red in Water using Biocarbons obtained from Nipa palm (Nypa fruticans Wurmb) Leaves. Journal of Applied Sciences & Environmental Management. 20(4): 1163-1176.
[7]	Adowei, P; Spiff, A. I; Abia A. A. (2014). Evaluation of Carbonized and Surface-Modified Carbon Produced from Nipa Palm (Nypa Fruiticans Wurmb) Leaves for the Removal of 2-(N,N-Dimethyl-4-aminophenyl)-azo-benzene carboxylic acid (DMABA) in Aqueous Solution Acta Chimica. Pharmaceutica. Indica: 4(3) 146-156.
[8]	Adowei, P; Abia, A. A; Spiff, A. I (2015). Physicochemical Characteristics of Biocarbons obtained from Nipa Palm (Nypa Fruiticans Wurmb) Leaves. Research. Journal of Chemical Sciences. 5(1): 18-26.
[9]	Adowei, P; Abia, A. A; and Okorosaye-Orubite, K (2017). Study of kerosene elimination in water by steam-modified and acid-modified carbons made from nipa palm (Nypa Fruiticans Wurmb) leaves. Journal, Chemical Society of Nigeria. 42(1) 75-8.
[10]	Adowei, P; Wariboko, E; and Markmanuel, D, (2020). Removal of Low concentration of. Kerosene from water using Nipa paim (Nypa Fruticans Wurmb) fruit fibre. International Journal of Research. 8(6) 1-9.
[11]	Adowei, P; Horsfall, M; Spiff, A. I. (2012). Adsorption of Methyl Red from Aqueous Solution by Activated Carbon produced from Cassava (Manihot esculenta Cranz) Peel Waste. Innovations in Science and Engineering. 2(2) 24-33.
[12]	Ahmad A. L, Loh M. M, Aziz J. A. (2010). Preparation and characterization of activated carbon from oil palm wood and its evaluation on Methylene blue adsorption. Dyes and Pigments 75: 263-72.
[13]	Ahmedna M, Marshal W, Rao M. (2000). Production of Granular activated carbon from selected Agric by products. Bioresource and Technology; 71(2): 113–123.
[14]	Aksu, Z. and Gönen, F., (2004). Biosorption of phenol by immobilized activated sludge in a continuous packed bed: prediction of breakthrough curves. Process Biochemistry, 39, 599-613.
[15]	Ash B, Satapathy D, Mukherjee PS, Nanda B, Gumaste JL, Mishra BK, (2006). Characterization and application of activated carbon prepared from coir pith, Journal of Scientific and Industrial Research. 65: 1008-1012.
[16]	Baek, K., Song, S., Kang, S., Rhee, Y., Lee, C., Lee, B., Hudson, S. and Hwang, T. (2007). Adsorption kinetics of boron anion exchange resin in packed bed column. Journal of Industrial Chemical Engineering 13(3) 452–456.
[17]	Cheng-Hsing, W and Hwang BJ (2000). A general adsorption isotherm considering multi-layer adsorptionand heterogeneity of adsorbent. Chemical Engineering Science 55: 4311-4321.
[18]	Ekpete, O. A and M. Horsfall Jnr (2012). Kinetic Sorption Study of Phenol onto Activated Carbon Derived from Fluted Pumpkin Stem Waste (Telfairia occidentalis Hook. F) ARPN Journal of Engineering and Applied Sciences. 6(6): 43–49.
[19]	Ekpete O. A. and Horsfall M. Jnr (2011). Preparation and Characterization of Activated Carbon derived from Fluted Pumpkin Stem Waste (Telfairia occidentalis Hook F). Research Journal of Chemical Sciences. 1(3): 10–17.
[20]	Fadini, Pedro Sérgio; Jardim, Wilson F.; Guimarães, José Roberto (2004). Evaluation of Organic Load Measurement Techniques in a Sewage and Waste Stabilization Pond. Journal of Brazilian Chemical Society. 15(1): 131-135.
[21]	Fan, M., Marshall, W., Daugaard, D., Brown, R. C., (2003), Steam activation of chars produced from oat hulls and cornstover, Bioresource Technoloy. 93, 103–117.
[22]	Fu, Y. and Viraraghavan, T., (2003). Column studies for biosorption of dyes from aqueous solutions on immobilized Aspergillus niger fungal biomass. Water SA. 29, 465-472.
[23]	Gimba C, and Musa, A. (2005). Preparation of A. C from Agricultural wastes II. Cyanide binding withbactivated carbon matrix from groundnut shell. Nigerian Journal of Scientific Research 4(2): 106-110.
[24]	Gimba C, Ocholi O, Nok A. (2004). Preparation of A. C from Agricultural wastes II. Cyanide binding with activated carbon matrix from groundnut shell. Nigerian journal of scientific research. Bioresource Technology 97, 401-406.
[25]	Ho, Y. S., McKay, G. (1998). Sorption of dye from aqueous solution by peat, Elsevier Chemical Engineering Journal. 70, (2): 115-124.
[26]	Ho, Y. S.; John-Wase, D. A. and Forster, C. F. (1995). Batch nickel removal from aqueous solution by sphagnum moss peat. Water Research. 29, 5, 1327-1332.
[27]	Horsfall, M. Jnr.; A. I. Spiff and A. A. Abia (2004). Studies on the Influence of Mercaptoacetic Acid (MAA) Modification of Cassava (Manihot esculenta Cranz) Waste Biomass on the Adsorption of Cu²⁺ and Cd²⁺ from Aqueous Solution. Bulletin of Korean Chemical Society. 25(7): 969–976.
[28]	Horsfall, M. Jnr and Abia, A. A (2003). Sorption of Cd (II) and Zn (II) ions from Aqueous solutions by Cassava Waste Biomass (Manihot sculenta Cranz). Water Resource. 37, 4913–4923.
[29]	Horsfall, M. Jnr. and Spiff A. I (2005a) sorption-containing chemically modified wastes of fluted pumpkin (Telfaria Occidentalis Hook F.). Chemistry and Biodiversity 2.
[30]	Horsfall, M. Jnr.; and Spiff, A. I. (2005b). Sorption of Lead, Cadmium, and Zinc on Sulfur-Containing Chemically Modified Wastes of Fluted Pumpkin (Telfaria occidentalis) HOOK f.). Chemistry. & Biodiversity; 2; 373–385.
[31]	Horsfall, M. Jnr.; and Spiff, A. I. (2005c). Effect of 2- Mercaptoethanoic Acid Treatment of Fluted Pumpkin Waste (Telfairia occidentalis Hook f) on the Sorption of Ni²⁺ ions from Aqueous Solution. Journal of Scientific & Industrial Research. 64(8): 613–620.
[32]	Itodo A. U., Abdulrahman F. W., Hassan L. G, Maigandi S. A., Itodo H. U. (2010). Physicochemical parameters of Adsorbents from locally sorted H₃PO₄ and ZnCl₂ modified Agricultural wastes (Groundnut shells, Shea nut shells, Poultry wastes and Poultry droppings). New York Science Journal 3(5) 17–24.
[33]	Isiuku, O. B., Horsfall, M., Spiff, A. I. (2013). Adsorption of metanil yellow on chemically-activated carbon in a packed-bed column: Effect of activation reagent. Journal of Engineering and Applied Science. 8(9): 282–289. doi: 10.3923/jeasci.2013.282.289.
[34]	Isiuku, B. O; Horsfall, M. Jnr and Spiff, A. I. (2014a). Colour Removal from a Simulated Methyl Red Wastewater by Adsorption on Carbon in a Fixed Bed Research Journal of Applied Sciences. 9(4): 201-207.
[35]	Isiuku, B. O., Horsfall, M. Jnr and A. I. Spiff (2014). Removal of Methyl Red NaOH-Activated Cassava Peels Carbon in a Fixed Bed. Research Journal of Applied Sciences. 9(5): 238–243.
[36]	Kavak, D. and Öztürk, N. (2004). Adsorption of boron from aqueous solution by sepirolite: II. Column studies. II. Uluslararası Bor Sempozyumu, 23-25 Eylül 2004 Eskişehir Türkiye. Page No. 495-500.
[37]	Negrea, A; L. Lupa, M. Ciopec and P. Negrea (2011): Experimental and Modelling Studies on As (III) Removal from Aqueous Medium on Fixed Bed Column. Chemical Bulletin of POLITEHNICA University, Timisoara. 56(70), 2, 2011.
[38]	Sivakumar, P. and Palanisamy, P. N. (2009) Packed Bed Column Studies for the Removal of Acid Blue 92 and Basic red 29 Using Non-Conventional Adsorbent. Indian Journal of Chemical Technology, 16, 301-307.
[39]	Sugumaran P, Seshadri S, (2009). Evaluation of selected biomass for charcoal production, Journal Scientific & Industrial Research. 68(8): 719-723.
[40]	Sugumaran, P, Priya. S. V, Ravichandran, P. and Seshadri, S (2012). Production and Characterization of Activated Carbon from Banana Empty Fruit Bunch and Delonix regia Fruit Pod. Journal of Sustainable Energy & Environment 3: 125-132.
[41]	Taty-Custodes, V. C., Fauduet, H., Porte, C. and Ho, Y. S., (2005). Removal of lead (II) ions from synthetic and real effluents using immobilized Pinus sylvetris sawdust: adsorption on a fixed-bed column. Journal of Hazardous Materials, B123, 135-144.
[42]	Unuabonah, E. I., Olu-Owolabi, B. I., Fasuyi, E. I., Adebowale, K. O., (2010). Modeling of fixed bed column studies for the adsorption of cadmium onto novel polymer–clay composite adsorbent. Journal of Hazardous Material. 179(1–3): 415–423.
[43]	Verla, AW; Adowei, P; Verla, E. N (2014). Physicochemical and Microbiological Characteristics of Palm Oil Mill Effluent (POME) in Nguru-Aboh Mbaise, Eastern Nigeria. Acta Chimica Pharmaceutica Indica. 4(3): 119-125.

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APA Style

Adowei, P. (2024). Fixed-Bed Column Adsorption Studies of Synthetic Organic Chemicals Using Carbonized and Surface-Modified Carbons from Nipa Palm Leaves. International Journal of Environmental Chemistry, 8(1), 1-11. https://doi.org/10.11648/j.ijec.20240801.11

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ACS Style

Adowei, P. Fixed-Bed Column Adsorption Studies of Synthetic Organic Chemicals Using Carbonized and Surface-Modified Carbons from Nipa Palm Leaves. Int. J. Environ. Chem. 2024, 8(1), 1-11. doi: 10.11648/j.ijec.20240801.11

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AMA Style

Adowei P. Fixed-Bed Column Adsorption Studies of Synthetic Organic Chemicals Using Carbonized and Surface-Modified Carbons from Nipa Palm Leaves. Int J Environ Chem. 2024;8(1):1-11. doi: 10.11648/j.ijec.20240801.11

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@article{10.11648/j.ijec.20240801.11,
  author = {Pereware Adowei},
  title = {Fixed-Bed Column Adsorption Studies of Synthetic Organic Chemicals Using Carbonized and Surface-Modified Carbons from Nipa Palm Leaves},
  journal = {International Journal of Environmental Chemistry},
  volume = {8},
  number = {1},
  pages = {1-11},
  doi = {10.11648/j.ijec.20240801.11},
  url = {https://doi.org/10.11648/j.ijec.20240801.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijec.20240801.11},
  abstract = {Batch adsorption isotherm data do not always provide accurate scale-up facts for real systems. Consequently, it is necessary to carry out fixed-bed column adsorption studies, which provide essential design parameters that are necessary for column scale-up. Hence, the objective of this paper was to evaluate the fixed-bed column adsorption studies to remove synthetic organic chemicals (SOC) using carbonized and surface-modified carbons from nipa palm leaves. Carbonized and surface-modified carbons were produced by single-step pyrolysis after soaking the Nipa palm (Nypa fruticans Wurmb) leaves biomass with H2O, H3PO4 and KOH respectively while using chemical oxygen demand (COD) as the index of measurement. The SOCs solutions of concentration 100 mg/L at pH 6.5 were fed into the column from the top in a reservoir at the downward gravity flow rate of 15 mL/min and the effluent collected at the bottom at 30 minutes interval for 4 hours, quantity of the prepared adsorbent was packed in the column to yield the desired bed height of 7.62 cm containing 12.3 g of carbon. The optimum performance (mg cm-3) of the carbons are 10.16 (PCC), 9.024 (AAC) and 12.442 (BAC) for DMABA; 12.95 (PCC), 10.51 (AAC) and 16.64 (BAC) for kerosene and 9.568 (PCC), 6.651 (AAC) and 13.903 (BAC) for n-propanol) respectively. The breakthrough curve was analyzed using the Adams–Bohart, Thomas, and bed depth service time (BDST) mathematical models. The behaviors of the breakthrough curves were defined by the Thomas model at different conditions. The BDST model showed good agreement with the experimental data, and the high values of correlation coefficients (R2 ≥ 0.9646) obtained indicate the validity of the bed depth service time model for the present column system.
},
 year = {2024}
}

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TY  - JOUR
T1  - Fixed-Bed Column Adsorption Studies of Synthetic Organic Chemicals Using Carbonized and Surface-Modified Carbons from Nipa Palm Leaves
AU  - Pereware Adowei
Y1  - 2024/01/11
PY  - 2024
N1  - https://doi.org/10.11648/j.ijec.20240801.11
DO  - 10.11648/j.ijec.20240801.11
T2  - International Journal of Environmental Chemistry
JF  - International Journal of Environmental Chemistry
JO  - International Journal of Environmental Chemistry
SP  - 1
EP  - 11
PB  - Science Publishing Group
SN  - 2640-1460
UR  - https://doi.org/10.11648/j.ijec.20240801.11
AB  - Batch adsorption isotherm data do not always provide accurate scale-up facts for real systems. Consequently, it is necessary to carry out fixed-bed column adsorption studies, which provide essential design parameters that are necessary for column scale-up. Hence, the objective of this paper was to evaluate the fixed-bed column adsorption studies to remove synthetic organic chemicals (SOC) using carbonized and surface-modified carbons from nipa palm leaves. Carbonized and surface-modified carbons were produced by single-step pyrolysis after soaking the Nipa palm (Nypa fruticans Wurmb) leaves biomass with H2O, H3PO4 and KOH respectively while using chemical oxygen demand (COD) as the index of measurement. The SOCs solutions of concentration 100 mg/L at pH 6.5 were fed into the column from the top in a reservoir at the downward gravity flow rate of 15 mL/min and the effluent collected at the bottom at 30 minutes interval for 4 hours, quantity of the prepared adsorbent was packed in the column to yield the desired bed height of 7.62 cm containing 12.3 g of carbon. The optimum performance (mg cm-3) of the carbons are 10.16 (PCC), 9.024 (AAC) and 12.442 (BAC) for DMABA; 12.95 (PCC), 10.51 (AAC) and 16.64 (BAC) for kerosene and 9.568 (PCC), 6.651 (AAC) and 13.903 (BAC) for n-propanol) respectively. The breakthrough curve was analyzed using the Adams–Bohart, Thomas, and bed depth service time (BDST) mathematical models. The behaviors of the breakthrough curves were defined by the Thomas model at different conditions. The BDST model showed good agreement with the experimental data, and the high values of correlation coefficients (R2 ≥ 0.9646) obtained indicate the validity of the bed depth service time model for the present column system.

VL  - 8
IS  - 1
ER  -

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Pereware Adowei

Department of Pure and Industrial Chemistry, University of Port Harcourt, Port Harcourt, Nigeria

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Adowei, P. (2024). Fixed-Bed Column Adsorption Studies of Synthetic Organic Chemicals Using Carbonized and Surface-Modified Carbons from Nipa Palm Leaves. International Journal of Environmental Chemistry, 8(1), 1-11. https://doi.org/10.11648/j.ijec.20240801.11

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ACS Style

Adowei, P. Fixed-Bed Column Adsorption Studies of Synthetic Organic Chemicals Using Carbonized and Surface-Modified Carbons from Nipa Palm Leaves. Int. J. Environ. Chem. 2024, 8(1), 1-11. doi: 10.11648/j.ijec.20240801.11

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AMA Style

Adowei P. Fixed-Bed Column Adsorption Studies of Synthetic Organic Chemicals Using Carbonized and Surface-Modified Carbons from Nipa Palm Leaves. Int J Environ Chem. 2024;8(1):1-11. doi: 10.11648/j.ijec.20240801.11

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@article{10.11648/j.ijec.20240801.11,
  author = {Pereware Adowei},
  title = {Fixed-Bed Column Adsorption Studies of Synthetic Organic Chemicals Using Carbonized and Surface-Modified Carbons from Nipa Palm Leaves},
  journal = {International Journal of Environmental Chemistry},
  volume = {8},
  number = {1},
  pages = {1-11},
  doi = {10.11648/j.ijec.20240801.11},
  url = {https://doi.org/10.11648/j.ijec.20240801.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijec.20240801.11},
  abstract = {Batch adsorption isotherm data do not always provide accurate scale-up facts for real systems. Consequently, it is necessary to carry out fixed-bed column adsorption studies, which provide essential design parameters that are necessary for column scale-up. Hence, the objective of this paper was to evaluate the fixed-bed column adsorption studies to remove synthetic organic chemicals (SOC) using carbonized and surface-modified carbons from nipa palm leaves. Carbonized and surface-modified carbons were produced by single-step pyrolysis after soaking the Nipa palm (Nypa fruticans Wurmb) leaves biomass with H2O, H3PO4 and KOH respectively while using chemical oxygen demand (COD) as the index of measurement. The SOCs solutions of concentration 100 mg/L at pH 6.5 were fed into the column from the top in a reservoir at the downward gravity flow rate of 15 mL/min and the effluent collected at the bottom at 30 minutes interval for 4 hours, quantity of the prepared adsorbent was packed in the column to yield the desired bed height of 7.62 cm containing 12.3 g of carbon. The optimum performance (mg cm-3) of the carbons are 10.16 (PCC), 9.024 (AAC) and 12.442 (BAC) for DMABA; 12.95 (PCC), 10.51 (AAC) and 16.64 (BAC) for kerosene and 9.568 (PCC), 6.651 (AAC) and 13.903 (BAC) for n-propanol) respectively. The breakthrough curve was analyzed using the Adams–Bohart, Thomas, and bed depth service time (BDST) mathematical models. The behaviors of the breakthrough curves were defined by the Thomas model at different conditions. The BDST model showed good agreement with the experimental data, and the high values of correlation coefficients (R2 ≥ 0.9646) obtained indicate the validity of the bed depth service time model for the present column system.
},
 year = {2024}
}

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TY  - JOUR
T1  - Fixed-Bed Column Adsorption Studies of Synthetic Organic Chemicals Using Carbonized and Surface-Modified Carbons from Nipa Palm Leaves
AU  - Pereware Adowei
Y1  - 2024/01/11
PY  - 2024
N1  - https://doi.org/10.11648/j.ijec.20240801.11
DO  - 10.11648/j.ijec.20240801.11
T2  - International Journal of Environmental Chemistry
JF  - International Journal of Environmental Chemistry
JO  - International Journal of Environmental Chemistry
SP  - 1
EP  - 11
PB  - Science Publishing Group
SN  - 2640-1460
UR  - https://doi.org/10.11648/j.ijec.20240801.11
AB  - Batch adsorption isotherm data do not always provide accurate scale-up facts for real systems. Consequently, it is necessary to carry out fixed-bed column adsorption studies, which provide essential design parameters that are necessary for column scale-up. Hence, the objective of this paper was to evaluate the fixed-bed column adsorption studies to remove synthetic organic chemicals (SOC) using carbonized and surface-modified carbons from nipa palm leaves. Carbonized and surface-modified carbons were produced by single-step pyrolysis after soaking the Nipa palm (Nypa fruticans Wurmb) leaves biomass with H2O, H3PO4 and KOH respectively while using chemical oxygen demand (COD) as the index of measurement. The SOCs solutions of concentration 100 mg/L at pH 6.5 were fed into the column from the top in a reservoir at the downward gravity flow rate of 15 mL/min and the effluent collected at the bottom at 30 minutes interval for 4 hours, quantity of the prepared adsorbent was packed in the column to yield the desired bed height of 7.62 cm containing 12.3 g of carbon. The optimum performance (mg cm-3) of the carbons are 10.16 (PCC), 9.024 (AAC) and 12.442 (BAC) for DMABA; 12.95 (PCC), 10.51 (AAC) and 16.64 (BAC) for kerosene and 9.568 (PCC), 6.651 (AAC) and 13.903 (BAC) for n-propanol) respectively. The breakthrough curve was analyzed using the Adams–Bohart, Thomas, and bed depth service time (BDST) mathematical models. The behaviors of the breakthrough curves were defined by the Thomas model at different conditions. The BDST model showed good agreement with the experimental data, and the high values of correlation coefficients (R2 ≥ 0.9646) obtained indicate the validity of the bed depth service time model for the present column system.

VL  - 8
IS  - 1
ER  -

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