Immobilization of Bacillus sp. in mesoporous activated carbon for degradation of sulphonated phenolic compound in wastewater

G. Sekaran; S. Karthikeyan; V. K. Gupta; R. Boopathy; P. Maharaja

doi:10.1016/j.msec.2012.10.026

Immobilization of Bacillus sp. in mesoporous activated carbon for degradation of sulphonated phenolic compound in wastewater

G. Sekaran^*, S. Karthikeyan, V. K. Gupta, R. Boopathy, P. Maharaja

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

Xenobiotic compounds are used in considerable quantities in leather industries besides natural organic and inorganic compounds. These compounds resist biological degradation and thus they remain in the treated wastewater in the unaltered molecular configurations. Immobilization of organisms in carrier matrices protects them from shock load application and from the toxicity of chemicals in bulk liquid phase. Mesoporous activated carbon (MAC) has been considered in the present study as the carrier matrix for the immobilization of Bacillus sp. isolated from Effluent Treatment Plant (ETP) employed for the treatment of wastewater containing sulphonated phenolic (SP) compounds. Temperature, pH, concentration, particle size and mass of MAC were observed to influence the immobilization behavior of Bacillus sp. The percentage immobilization of Bacillus sp. was the maximum at pH 7.0, temperature 20 C and at particle size 300 μm. Enthalpy, free energy and entropy of immobilization were - 46.9 kJ mol^{- 1}, - 1.19 kJ mol^{- 1} and - 161.36 J K^{- 1} mol^{- 1} respectively at pH 7.0, temperature 20 C and particle size 300 μm. Higher values of ΔH⁰ indicate the firm bonding of the Bacillus sp. in MAC. Degradation of aqueous sulphonated phenolic compound by Bacillus sp. immobilized in MAC followed pseudo first order rate kinetics with rate constant 1.12 × 10^{- 2} min^{- 1}.

Original language	English
Pages (from-to)	735-745
Number of pages	11
Journal	Materials Science and Engineering C
Volume	33
Issue number	2
DOIs	https://doi.org/10.1016/j.msec.2012.10.026
State	Published - 1 Mar 2013
Externally published	Yes

Bibliographical note

Funding Information:
The authors are thankful to the Council of Scientific and Industrial Research (CSIR) and the Central Leather Research Institute, India, for providing all the facilities needed to carry out this work.

Keywords

Activated carbon
Bacillus sp.
Immobilization
Sulphonated phenolic compound (SP)
Xenobiotic compounds

ASJC Scopus subject areas

General Medicine

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.msec.2012.10.026

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title = "Immobilization of Bacillus sp. in mesoporous activated carbon for degradation of sulphonated phenolic compound in wastewater",

abstract = "Xenobiotic compounds are used in considerable quantities in leather industries besides natural organic and inorganic compounds. These compounds resist biological degradation and thus they remain in the treated wastewater in the unaltered molecular configurations. Immobilization of organisms in carrier matrices protects them from shock load application and from the toxicity of chemicals in bulk liquid phase. Mesoporous activated carbon (MAC) has been considered in the present study as the carrier matrix for the immobilization of Bacillus sp. isolated from Effluent Treatment Plant (ETP) employed for the treatment of wastewater containing sulphonated phenolic (SP) compounds. Temperature, pH, concentration, particle size and mass of MAC were observed to influence the immobilization behavior of Bacillus sp. The percentage immobilization of Bacillus sp. was the maximum at pH 7.0, temperature 20 C and at particle size 300 μm. Enthalpy, free energy and entropy of immobilization were - 46.9 kJ mol- 1, - 1.19 kJ mol- 1 and - 161.36 J K- 1 mol- 1 respectively at pH 7.0, temperature 20 C and particle size 300 μm. Higher values of ΔH0 indicate the firm bonding of the Bacillus sp. in MAC. Degradation of aqueous sulphonated phenolic compound by Bacillus sp. immobilized in MAC followed pseudo first order rate kinetics with rate constant 1.12 × 10- 2 min- 1.",

keywords = "Activated carbon, Bacillus sp., Immobilization, Sulphonated phenolic compound (SP), Xenobiotic compounds",

author = "G. Sekaran and S. Karthikeyan and Gupta, {V. K.} and R. Boopathy and P. Maharaja",

note = "Funding Information: The authors are thankful to the Council of Scientific and Industrial Research (CSIR) and the Central Leather Research Institute, India, for providing all the facilities needed to carry out this work. ",

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AU - Sekaran, G.

AU - Karthikeyan, S.

AU - Gupta, V. K.

AU - Boopathy, R.

AU - Maharaja, P.

N1 - Funding Information: The authors are thankful to the Council of Scientific and Industrial Research (CSIR) and the Central Leather Research Institute, India, for providing all the facilities needed to carry out this work.

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N2 - Xenobiotic compounds are used in considerable quantities in leather industries besides natural organic and inorganic compounds. These compounds resist biological degradation and thus they remain in the treated wastewater in the unaltered molecular configurations. Immobilization of organisms in carrier matrices protects them from shock load application and from the toxicity of chemicals in bulk liquid phase. Mesoporous activated carbon (MAC) has been considered in the present study as the carrier matrix for the immobilization of Bacillus sp. isolated from Effluent Treatment Plant (ETP) employed for the treatment of wastewater containing sulphonated phenolic (SP) compounds. Temperature, pH, concentration, particle size and mass of MAC were observed to influence the immobilization behavior of Bacillus sp. The percentage immobilization of Bacillus sp. was the maximum at pH 7.0, temperature 20 C and at particle size 300 μm. Enthalpy, free energy and entropy of immobilization were - 46.9 kJ mol- 1, - 1.19 kJ mol- 1 and - 161.36 J K- 1 mol- 1 respectively at pH 7.0, temperature 20 C and particle size 300 μm. Higher values of ΔH0 indicate the firm bonding of the Bacillus sp. in MAC. Degradation of aqueous sulphonated phenolic compound by Bacillus sp. immobilized in MAC followed pseudo first order rate kinetics with rate constant 1.12 × 10- 2 min- 1.

AB - Xenobiotic compounds are used in considerable quantities in leather industries besides natural organic and inorganic compounds. These compounds resist biological degradation and thus they remain in the treated wastewater in the unaltered molecular configurations. Immobilization of organisms in carrier matrices protects them from shock load application and from the toxicity of chemicals in bulk liquid phase. Mesoporous activated carbon (MAC) has been considered in the present study as the carrier matrix for the immobilization of Bacillus sp. isolated from Effluent Treatment Plant (ETP) employed for the treatment of wastewater containing sulphonated phenolic (SP) compounds. Temperature, pH, concentration, particle size and mass of MAC were observed to influence the immobilization behavior of Bacillus sp. The percentage immobilization of Bacillus sp. was the maximum at pH 7.0, temperature 20 C and at particle size 300 μm. Enthalpy, free energy and entropy of immobilization were - 46.9 kJ mol- 1, - 1.19 kJ mol- 1 and - 161.36 J K- 1 mol- 1 respectively at pH 7.0, temperature 20 C and particle size 300 μm. Higher values of ΔH0 indicate the firm bonding of the Bacillus sp. in MAC. Degradation of aqueous sulphonated phenolic compound by Bacillus sp. immobilized in MAC followed pseudo first order rate kinetics with rate constant 1.12 × 10- 2 min- 1.

KW - Activated carbon

KW - Bacillus sp.

KW - Immobilization

KW - Sulphonated phenolic compound (SP)

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Immobilization of Bacillus sp. in mesoporous activated carbon for degradation of sulphonated phenolic compound in wastewater

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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