Bio-composite of Fe-sludge biochar immobilized with Bacillus Sp. in packed column for bio-adsorption of Methylene blue in a hybrid treatment system: Isotherm and kinetic evaluation

Anees Ahmad; Arun Pratap Singh; Nawaz Khan; Pankaj Chowdhary; Balendu Shekher Giri; Sunita Varjani; Preeti Chaturvedi

doi:10.1016/j.eti.2021.101734

Bio-composite of Fe-sludge biochar immobilized with Bacillus Sp. in packed column for bio-adsorption of Methylene blue in a hybrid treatment system: Isotherm and kinetic evaluation

Anees Ahmad, Arun Pratap Singh, Nawaz Khan, Pankaj Chowdhary, Balendu Shekher Giri, Sunita Varjani, Preeti Chaturvedi^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

The present study highlights the potential of bio-composite of Fe-sludge biochar and Bacillus sp for decolorization of Methylene blue (MB) dye. The Packed Bed Continuous Reactor (PBCR) hybrid system was containing bio-composite of Fe-sludge biochar with an ultraviolet system containing 600 mg ⋅L⁻¹ MB dye. PBCR treated effluent was passed through the immobilized Bacillus sp. cells for biodegradation. The adsorption capacity of Fe-sludge biochar was 29.13 mg/g after 5 treatment cycles in PBCR. The kinetics parameters for pseudo-first-order, K₁and R²were found to be 0.007 min ⁻¹ and 0.95; pseudo-second-order K²and R²were 1.69 g/mg/min and 1.0, respectively for bio-composite of Fe-sludge biochar Adsorption isotherm parameters values for Langmuir (K_L), Freundlich (K_F), and R² were found to be 0.0366 L mg⁻¹, 0.685 mg g^-1 and 0.37 and 0.79, respectively. The Monod growth kinetic parameters Ks, μmax/Ks and μmax were found 41.3 mg day ⁻¹, 0.0103 mg day ⁻¹, and 0.426 day ⁻¹ respectively. Fe-sludge biochar immobilized with bacteria cell shows higher removal efficiency of MB dye in comparison to free bacterial cells system. Adsorption using the hybrid process (engineered biochar + bacteria) could be more effective and low-cost green approach for the organic pollutants removal from the industrial effluent.

© 2021 Elsevier B.V. All rights reserved.

Original language	English
Article number	101734
Journal	Environmental Technology & Innovation
Volume	23
Online published	26 Jun 2021
DOIs	https://doi.org/10.1016/j.eti.2021.101734
Publication status	Published - Aug 2021
Externally published	Yes

Research Keywords

Bio-composite of Fe-sludge biochar
Bacillus sp.
Kinetics studies
Adsorption isotherm
Pseudo-second-order kinetic

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Ahmad, A., Singh, A. P., Khan, N., Chowdhary, P., Giri, B. S., Varjani, S., & Chaturvedi, P. (2021). Bio-composite of Fe-sludge biochar immobilized with Bacillus Sp. in packed column for bio-adsorption of Methylene blue in a hybrid treatment system: Isotherm and kinetic evaluation. Environmental Technology & Innovation, 23, Article 101734. https://doi.org/10.1016/j.eti.2021.101734

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title = "Bio-composite of Fe-sludge biochar immobilized with Bacillus Sp. in packed column for bio-adsorption of Methylene blue in a hybrid treatment system: Isotherm and kinetic evaluation",

abstract = "The present study highlights the potential of bio-composite of Fe-sludge biochar and Bacillus sp for decolorization of Methylene blue (MB) dye. The Packed Bed Continuous Reactor (PBCR) hybrid system was containing bio-composite of Fe-sludge biochar with an ultraviolet system containing 600 mg ⋅L−1 MB dye. PBCR treated effluent was passed through the immobilized Bacillus sp. cells for biodegradation. The adsorption capacity of Fe-sludge biochar was 29.13 mg/g after 5 treatment cycles in PBCR. The kinetics parameters for pseudo-first-order, K1 and R2 were found to be 0.007 min −1 and 0.95; pseudo-second-order K2 and R2 were 1.69 g/mg/min and 1.0, respectively for bio-composite of Fe-sludge biochar Adsorption isotherm parameters values for Langmuir (KL), Freundlich (KF), and R2 were found to be 0.0366 L mg −1, 0.685 mg g-1 and 0.37 and 0.79, respectively. The Monod growth kinetic parameters Ks, μmax/Ks and μmax were found 41.3 mg day −1, 0.0103 mg day −1, and 0.426 day −1 respectively. Fe-sludge biochar immobilized with bacteria cell shows higher removal efficiency of MB dye in comparison to free bacterial cells system. Adsorption using the hybrid process (engineered biochar + bacteria) could be more effective and low-cost green approach for the organic pollutants removal from the industrial effluent.{\textcopyright} 2021 Elsevier B.V. All rights reserved.",

keywords = "Bio-composite of Fe-sludge biochar, Bacillus sp., Kinetics studies, Adsorption isotherm, Pseudo-second-order kinetic",

author = "Anees Ahmad and Singh, {Arun Pratap} and Nawaz Khan and Pankaj Chowdhary and Giri, {Balendu Shekher} and Sunita Varjani and Preeti Chaturvedi",

year = "2021",

month = aug,

doi = "10.1016/j.eti.2021.101734",

language = "English",

volume = "23",

journal = "Environmental Technology & Innovation",

issn = "2352-1864",

publisher = "Elsevier B.V.",

}

Bio-composite of Fe-sludge biochar immobilized with Bacillus Sp. in packed column for bio-adsorption of Methylene blue in a hybrid treatment system: Isotherm and kinetic evaluation. / Ahmad, Anees; Singh, Arun Pratap; Khan, Nawaz et al.
In: Environmental Technology & Innovation, Vol. 23, 101734, 08.2021.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Bio-composite of Fe-sludge biochar immobilized with Bacillus Sp. in packed column for bio-adsorption of Methylene blue in a hybrid treatment system

T2 - Isotherm and kinetic evaluation

AU - Ahmad, Anees

AU - Singh, Arun Pratap

AU - Khan, Nawaz

AU - Chowdhary, Pankaj

AU - Giri, Balendu Shekher

AU - Varjani, Sunita

AU - Chaturvedi, Preeti

PY - 2021/8

Y1 - 2021/8

N2 - The present study highlights the potential of bio-composite of Fe-sludge biochar and Bacillus sp for decolorization of Methylene blue (MB) dye. The Packed Bed Continuous Reactor (PBCR) hybrid system was containing bio-composite of Fe-sludge biochar with an ultraviolet system containing 600 mg ⋅L−1 MB dye. PBCR treated effluent was passed through the immobilized Bacillus sp. cells for biodegradation. The adsorption capacity of Fe-sludge biochar was 29.13 mg/g after 5 treatment cycles in PBCR. The kinetics parameters for pseudo-first-order, K1 and R2 were found to be 0.007 min −1 and 0.95; pseudo-second-order K2 and R2 were 1.69 g/mg/min and 1.0, respectively for bio-composite of Fe-sludge biochar Adsorption isotherm parameters values for Langmuir (KL), Freundlich (KF), and R2 were found to be 0.0366 L mg −1, 0.685 mg g-1 and 0.37 and 0.79, respectively. The Monod growth kinetic parameters Ks, μmax/Ks and μmax were found 41.3 mg day −1, 0.0103 mg day −1, and 0.426 day −1 respectively. Fe-sludge biochar immobilized with bacteria cell shows higher removal efficiency of MB dye in comparison to free bacterial cells system. Adsorption using the hybrid process (engineered biochar + bacteria) could be more effective and low-cost green approach for the organic pollutants removal from the industrial effluent.© 2021 Elsevier B.V. All rights reserved.

AB - The present study highlights the potential of bio-composite of Fe-sludge biochar and Bacillus sp for decolorization of Methylene blue (MB) dye. The Packed Bed Continuous Reactor (PBCR) hybrid system was containing bio-composite of Fe-sludge biochar with an ultraviolet system containing 600 mg ⋅L−1 MB dye. PBCR treated effluent was passed through the immobilized Bacillus sp. cells for biodegradation. The adsorption capacity of Fe-sludge biochar was 29.13 mg/g after 5 treatment cycles in PBCR. The kinetics parameters for pseudo-first-order, K1 and R2 were found to be 0.007 min −1 and 0.95; pseudo-second-order K2 and R2 were 1.69 g/mg/min and 1.0, respectively for bio-composite of Fe-sludge biochar Adsorption isotherm parameters values for Langmuir (KL), Freundlich (KF), and R2 were found to be 0.0366 L mg −1, 0.685 mg g-1 and 0.37 and 0.79, respectively. The Monod growth kinetic parameters Ks, μmax/Ks and μmax were found 41.3 mg day −1, 0.0103 mg day −1, and 0.426 day −1 respectively. Fe-sludge biochar immobilized with bacteria cell shows higher removal efficiency of MB dye in comparison to free bacterial cells system. Adsorption using the hybrid process (engineered biochar + bacteria) could be more effective and low-cost green approach for the organic pollutants removal from the industrial effluent.© 2021 Elsevier B.V. All rights reserved.

KW - Bio-composite of Fe-sludge biochar

KW - Bacillus sp.

KW - Kinetics studies

KW - Adsorption isotherm

KW - Pseudo-second-order kinetic

U2 - 10.1016/j.eti.2021.101734

DO - 10.1016/j.eti.2021.101734

M3 - RGC 21 - Publication in refereed journal

SN - 2352-1864

VL - 23

JO - Environmental Technology & Innovation

JF - Environmental Technology & Innovation

M1 - 101734

ER -

Bio-composite of Fe-sludge biochar immobilized with Bacillus Sp. in packed column for bio-adsorption of Methylene blue in a hybrid treatment system: Isotherm and kinetic evaluation

Abstract

Research Keywords

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