Batch studies of hexavalent chromium biosorption from mining wastewater using Aspergillus niger

Onyekachukwu Love Ume; Bernard Chukwuemeka Ekeoma; Mohammad Yusuf; Abdullah A. Al-Kahtani; Mohd Ubaidullah; Mika Sillanpää

doi:10.1016/j.rechem.2022.100490

Batch studies of hexavalent chromium biosorption from mining wastewater using Aspergillus niger

Onyekachukwu Love Ume, Bernard Chukwuemeka Ekeoma, Mohammad Yusuf, Abdullah A. Al-Kahtani, Mohd Ubaidullah, Mika Sillanpää

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

18 Citations (Scopus)

Abstract

The effects of selected process parameters in the biosorption of chromium (VI) ions for wastewater treatment using Aspergillus niger were studied whilst keeping temperature and pH constant. The biosorption capacity was observed to be optimum at 15 h contact time, 2.8 g biomass dose and 200 rpm agitation speed. The Jovanovic isotherm model best represented the biosorption equilibrium data, and the equilibrium biosorption capacity was found to be 0.0574 mg/g. The biosorption kinetics was investigated, and the pseudo-second-order kinetic model gave the best fit concerning the generated biosorption data according to linear regression analysis. Thermodynamic study of the biosorption process ascertained the values of standard thermodynamic parameters, including ΔG^o, ΔH^o, ΔS^o, which helped characterize the biosorption process to be exothermic, physical, and spontaneous.

Original language	English
Article number	100490
Journal	Results in Chemistry
Volume	4
DOIs	https://doi.org/10.1016/j.rechem.2022.100490
Publication status	Published - Jan 2022
Externally published	Yes

Keywords

Aspergillus niger
Biosorption Kinetics
Thermodynamics
Wastewater treatment

ASJC Scopus subject areas

General Chemistry

UN SDGs

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

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10.1016/j.rechem.2022.100490

Cite this

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title = "Batch studies of hexavalent chromium biosorption from mining wastewater using Aspergillus niger",

abstract = "The effects of selected process parameters in the biosorption of chromium (VI) ions for wastewater treatment using Aspergillus niger were studied whilst keeping temperature and pH constant. The biosorption capacity was observed to be optimum at 15 h contact time, 2.8 g biomass dose and 200 rpm agitation speed. The Jovanovic isotherm model best represented the biosorption equilibrium data, and the equilibrium biosorption capacity was found to be 0.0574 mg/g. The biosorption kinetics was investigated, and the pseudo-second-order kinetic model gave the best fit concerning the generated biosorption data according to linear regression analysis. Thermodynamic study of the biosorption process ascertained the values of standard thermodynamic parameters, including ΔGo, ΔHo, ΔSo, which helped characterize the biosorption process to be exothermic, physical, and spontaneous.",

keywords = "Aspergillus niger, Biosorption Kinetics, Thermodynamics, Wastewater treatment",

author = "Ume, {Onyekachukwu Love} and Ekeoma, {Bernard Chukwuemeka} and Mohammad Yusuf and Al-Kahtani, {Abdullah A.} and Mohd Ubaidullah and Mika Sillanp{\"a}{\"a}",

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year = "2022",

month = jan,

doi = "10.1016/j.rechem.2022.100490",

language = "English",

volume = "4",

journal = "Results in Chemistry",

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TY - JOUR

T1 - Batch studies of hexavalent chromium biosorption from mining wastewater using Aspergillus niger

AU - Ume, Onyekachukwu Love

AU - Ekeoma, Bernard Chukwuemeka

AU - Yusuf, Mohammad

AU - Al-Kahtani, Abdullah A.

AU - Ubaidullah, Mohd

AU - Sillanpää, Mika

PY - 2022/1

Y1 - 2022/1

N2 - The effects of selected process parameters in the biosorption of chromium (VI) ions for wastewater treatment using Aspergillus niger were studied whilst keeping temperature and pH constant. The biosorption capacity was observed to be optimum at 15 h contact time, 2.8 g biomass dose and 200 rpm agitation speed. The Jovanovic isotherm model best represented the biosorption equilibrium data, and the equilibrium biosorption capacity was found to be 0.0574 mg/g. The biosorption kinetics was investigated, and the pseudo-second-order kinetic model gave the best fit concerning the generated biosorption data according to linear regression analysis. Thermodynamic study of the biosorption process ascertained the values of standard thermodynamic parameters, including ΔGo, ΔHo, ΔSo, which helped characterize the biosorption process to be exothermic, physical, and spontaneous.

AB - The effects of selected process parameters in the biosorption of chromium (VI) ions for wastewater treatment using Aspergillus niger were studied whilst keeping temperature and pH constant. The biosorption capacity was observed to be optimum at 15 h contact time, 2.8 g biomass dose and 200 rpm agitation speed. The Jovanovic isotherm model best represented the biosorption equilibrium data, and the equilibrium biosorption capacity was found to be 0.0574 mg/g. The biosorption kinetics was investigated, and the pseudo-second-order kinetic model gave the best fit concerning the generated biosorption data according to linear regression analysis. Thermodynamic study of the biosorption process ascertained the values of standard thermodynamic parameters, including ΔGo, ΔHo, ΔSo, which helped characterize the biosorption process to be exothermic, physical, and spontaneous.

KW - Aspergillus niger

KW - Biosorption Kinetics

KW - Thermodynamics

KW - Wastewater treatment

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U2 - 10.1016/j.rechem.2022.100490

DO - 10.1016/j.rechem.2022.100490

M3 - Article

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SN - 2211-7156

VL - 4

JO - Results in Chemistry

JF - Results in Chemistry

M1 - 100490

ER -

Batch studies of hexavalent chromium biosorption from mining wastewater using Aspergillus niger

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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