Oseribho Oboh | University of Uyo, Uyo, Nigeria (original) (raw)

Papers by Oseribho Oboh

Sponge-gourds, the fruit of Luffa cylindrica, are widely used throughout the world. It is an annu... more Sponge-gourds, the fruit of Luffa cylindrica, are widely used throughout the world. It is an annual climbing crop which produces fruit containing fibrous vascular system. Produced water is any water that is present in a reservoir with the hydrocarbon resource and is produced to the surface with the crude oil or natural gas. The residual metallic ion concentrations were determined using an Atomic Absorption Spectrophotometer (AAS). The physico-chemical properties of Produced water before discharge or reinjection into the waterways and reservoir and after treatment with luffa cylindrica were also determined. The percent removal of metal ions present in the produced water under study were 92.31%, 88.64%, 85.71% and 66.67% for Cr 3+ , Zn 2+ , Pb 2+ and Cd 2+ respectively. There were also reduction of Sulphate ions, THC, salinity and conductivity. Luffa cylindrica is an effective biosorbent for the removal of heavy metal ions; offering a cheap option for primary treatment of produced water.

Clay from Ikpoba in Benin city was tested as lowcost adsorbents for Cu(II) and Pb(II) removal fro... more Clay from Ikpoba in Benin city was tested as lowcost adsorbents for Cu(II) and Pb(II) removal from aqueous solutions. A full factorial experimental design was utilized to assess the effect of four factors on the batch adsorption of Cu(II) and Pb(II) with the clay (particle size < 0.02mm). The chosen experimental factors were adsorbent dose, temperature, shaking speed, and contact time. The results indicated that only adsorbent dose had significant effect for both ions. The best conditions for uptake of ions were respectively time of 90 minutes and 60 at 0.2g adsorbent.

Nickel metal contamination exists in industrial processes that use nickel catalysts, such as coal... more Nickel metal contamination exists in industrial processes that use nickel catalysts, such as coal gasification, petroleum refining, and hydrogenation of fats and oils. Therefore, a systematic study on the removal of nickel from wastewater is of considerable significance from an environmental point of view. Luffa cylindrica, a plant material with wide distribution particularly in the tropical world, was characterized as the surface area, chemical bonds, bulk density, Pore size distribution, microstructures, composition, morphology and elemental composition were determined. Biosorption studies were carried out with the dosage varied and the experimental data obtained were fitted to some selected kinetic models. Non-linear regression method was used and the regressed data obtained for the various doses studies ranged from 0.948 to unity. A kinetic model was developed. This empirical model for predicting the sorption capacity for Ni 2+ ions sorbed by Luffa cylindrica was derived from th...

Crude oil spills have tremendous effects on our environment and poses severe pollution problems a... more Crude oil spills have tremendous effects on our environment and poses severe pollution problems around the world as hazardous chemicals such as polycyclic aromatic hydrocarbons are released into the ecosystem. The clean-up of these spills using natural adsorbent is considered as an eco-friendly and cost effective method of handling the oil spills due to its high oil sorption capacity and biodegradability. Coconut coir predominantly found in the Niger Delta area of Nigeria was carbonized and chemically activated using Potassium Hydroxide (KOH) for the removal of crude oil spill. The kinetic data were fitted into various kinetic models with Pseudo-second order model showing best fit with a correlation coefficient R2=0.999 and the Boyd model revealed that the adsorption was controlled by internal transport mechanism and film-diffusion was the major mode of adsorption. Thus, Coconut Coir Activated Carbon (CCAC) showed significant capability to be used as a low-cost, re-generable and eco...

Environmental pollution due to the discharge of heavy metals from various industries, including m... more Environmental pollution due to the discharge of heavy metals from various industries, including metal plating, mining, painting and agricultural sources such as fertilizers and fungicidal sprays are causing significant concern because of their toxicity and threat to human life, especially when tolerance levels are exceeded (Gupta et al., 2009). The species with the most toxicological relevance found in the industrial effluents are the heavy metals. These species are bio-accumulative and not biodegradable over time (Abdel-Ghani et al., 2009). Activated carbon is the most employed adsorbent for heavy metal removal from aqueous solution (Mohan et al., 2005). However, the extensive use of activated carbon for metal removal from industrial effluents is expensive (Babel and Kurniawan, 2003), limiting its large application for wastewater treatment. Therefore, there is a growing interest in finding new alternative low-cost adsorbents for metal removal from aqueous solution, such as: microorganisms (

Optimization of plantain drying process parameters to obtained high quality product is very vital... more Optimization of plantain drying process parameters to obtained high quality product is very vital as improper drying conditions can affect the composition of the plantain flour and thereby increases the risk of running into deterioration of the nutrient contents of the product and loss. Matured unripe plantains were processed by washing, peeling and cut into required size. The samples obtained were analysed in triplicate using different drying oven temperatures (60, 70 and 80C) and time (187, 242, and 311 minutes) at pulp size of 3 mm by employing Design of experiment (DOE). Statistical analysis and Response surface methodology based on the D-Optimal were carried out. The significant factors on the experimental design response were identified from the analysis of variance. The optimum conditions for the processing of unripe plantain into dry product were obtained by using temperature of 80C, time of 187 minutes and pulp size of 3 mm which resulted in final carbohydrate content of 87...

African Journal of Agricultural Research, 2009

Sponge-gourds, the fruit of Luffa cylindrica, are widely used throughout the world. It is an annu... more Sponge-gourds, the fruit of Luffa cylindrica, are widely used throughout the world. It is an annual climbing crop which produces fruit containing fibrous vascular system. It is a summer season vegetable. At the moment, from the results of studies carried out on this wonder crop, it encourages the commercial cultivation of the crop because of its increasing economic importance. The objective of this review is to show the potentialities of this crop that is virtually found around the globe. Areas such as agriculture, medicine, science, engineering and biotechnology will be discussed. Recent major advances and discoveries will be considered.

International Journal of Research -GRANTHAALAYAH, 2019

The need for predicting the performance of hydrocarbon reservoirs has led to the development of a... more The need for predicting the performance of hydrocarbon reservoirs has led to the development of a number of software in the Petroleum industry. Lots of these available software handled virtually all tasks in reservoir engineering ranging from estimation, forecasting, history matching, among others. That notwithstanding, improvements on these software are still been made and newer versions are released to meet users’ requirements. In this work, software “ULTIMATE” was developed based on production rate decline analysis to predict reservoir performance. Also, the developed software “ULTIMATE” handles Inflow Performance Relationship (IPR) prediction. The developed software prediction based on data obtained from two wells were compared with another software MBAL 10.5 developed by petroleum Experts Limited. The results of the comparison indicated that the developed ULTIMATE software predictions were very close to the MBAL 10.5 predictions. Additionally, the incorporated parallel algorith...

The biosorption of copper (II) ions onto Luffa cylindrica was investigated. Luffa cylindrica, a b... more The biosorption of copper (II) ions onto Luffa cylindrica was investigated. Luffa cylindrica, a biomaterial with wide distribution particularly in the tropical world, is characterized with the surface area, chemical bonds, bulk density, pore size distribution, microstructures, composition, morphology and elemental composition which are determined. Biosorption studies were carried out with varying dosage and the experimental data obtained were fitted to Pseudo-Second order kinetic model. The regression value obtained from the various doses studies ranged from 0.991 to 0.999. A kinectic model was developed mathematically and as well Artificial Neural Network (ANN) was applied to develop a Multiple Input Single Output (MISO) back propagation neural network model which was validated. The RMSE value was found to be 1.2754. Artificial neural network has the capability to predict the sorption capacity quite reasonably for the model.

Poor oxidative stability is demonstrated by most vegetable oils especially in industrial situatio... more Poor oxidative stability is demonstrated by most vegetable oils especially in industrial situations. Antioxidants are widely used for overcoming poor oxidative stability in vegetable oils. The adverse effect of additives on the overall biodegradability of vegetable oil based industrial fluids could however be a concern. Biodegradability provides an indication of the persistence of any particular substance in the environment. The superior biodegradation of vegetable oils in comparison with mineral based oils has been demonstrated severally, leaving scientists with the lone challenge of finding economic and safe means to improve their working efficiency in terms of their poor oxidative stability. This study investigated the extent to which the use of the antioxidant Tertiary butyl hydroquinone (TBHQ) in palm olein impaired biodegradability, and described the relationship between antioxidant loading and biodegradability. Increased antioxidant loading resulted in a matching decrease in ...

2+ . The equilibrium sorption data fitted well the Freundlich model. The experimental data, when ... more 2+ . The equilibrium sorption data fitted well the Freundlich model. The experimental data, when applied to the first and second-order kinetic models, followed both kinetic models with r≤ = 0.898 for GAC from animal horns and r 2 = 0.973 for commercial GAC. The results obtained showed how animal horns, a solid waste from the abattoir at the Oshodi market in Lagos metropolis, was used as an effective adsorbent for the removal of Pb 2+ ions; offering a cheap option for primary treatment of the brewery wastewater effluent.

Biosorption experiment for Zn (II) was investigated in this study using the plant material Luffa ... more Biosorption experiment for Zn (II) was investigated in this study using the plant material Luffa cylindrica. The applicability of some selected kinetic models was tested. Characterization like the surface area, chemical bonds, bulk density, Pore size distribution, microstructures, composition, morphology and elemental composition were determined. The coefficient of determination (R 2 ) of all the models studied were mostly greater than 0.9. In most cases these coefficients were found to be close to one. This indicates that all the kinetic models adequately describe the experimental data of the biosorption of Zn (II) ions. Kinectic models were developed mathematically, and also, Artificial Neural Network (ANN) was applied to develop a Multiple Input Single Output (MISO) back propagation neural network model which was validated. The RMSE value was found to be 0.5912 and 1.6267 for MISO Zn-1 and MISO Zn-2 respectively. Artificial neural network was able to predict the sorption capacity...

Fischer–Tropsch synthesis (FTS) is a catalytic process that can be used to produce hydrocarbons, ... more Fischer–Tropsch synthesis (FTS) is a catalytic process that can be used to produce hydrocarbons, oxygenates and H2O among other products from synthesis gas, which can be derived from natural gas, coal, or biomass. It is a key component in Gas-to-Liquid (GTL), Biomass-to-Liquid (BTL) and Coal-to-Liquid (CTL) technology. The goal of the proposed work described in this Final Report was to show the distribution of the major product (hydrocarbon) with carbon number ranging from 1-37 assuming ideal kinetics of Anderson-Schulz-Flory (ASF) distribution model. The distributions of FT hydrocarbon product have best been described by Anderson-Schulz-Flory distribution model. The formation of long chain hydrocarbon product will depend on increasing chain growth probability and that the maximum selectivity of gasoline and diesel range products were 46% and 29% respectively. The selectivity of FT products as described by AndersonSchulz–Flory (ASF) distribution model is a one parameter factor and d...

This experimental study compared the extracts from an indigenous plant (Chromoleana odorata). The... more This experimental study compared the extracts from an indigenous plant (Chromoleana odorata). The extraction was carried out using ethanol and distilled water as solvents. The extracts obtained using both solvents were separately applied on three microorganisms namely Staphylococcus aureaus, Echerichia coli and Aspergillus niger. The results showed that Chromolaena odorata leaf extracts were effective in inhibiting the microorganisms used for the study at concentration ranging from 0.06 to 0.12 g/ml for the extract with ethanol as solvent and 0.07 to 0.10 g/ml for the extract with distilled water as solvent. From the results both extracts could be applied as potential medicated agents in the production of soap.

Physiochemical properties of wastewater effluent from the plants of a brewery in Lagos, Nigeria w... more Physiochemical properties of wastewater effluent from the plants of a brewery in Lagos, Nigeria were analyzed. The adsorption capacity of Granular activated carbon from animal horns when compared with the available commercial Granulated Activated Carbon (GAC) has been presented. Kinetics of adsorption was also investigated. The adsorption isotherms could be well defined with Freundlich model instead of Langmuir model for both GAC studied. The experimental data, when applied to the first and second-order kinetic models, followed the first-order with r² = 0.931 for GAC from animal horns while commercial GAC followed the second-order with r² = 0.936. The results illustrated how animal horns, a solid waste disposal menace from the abattoir at the Oshodi market in Lagos metropolis, was used as an effective biosorbent for the removal of Zn2+ ions; offering a cheap option for primary treatment of the wastewater effluent. Keywords— Biosorption, animal horns, Granulated Activated Carbon, was...

2+ ions was 66.5 with an effective dose of 1.0 g of dried C. albidum seeds at pH 7.0 shaken for 2... more 2+ ions was 66.5 with an effective dose of 1.0 g of dried C. albidum seeds at pH 7.0 shaken for 2 h at 300 r.p.m. The ability of C. albidum seeds to absorb metal ions as shown from the results can be used for the development of a cheap technology for effluent treatment.

Journal of Energy, Environmental & Chemical Engineering, 2021

Crude oil spills have tremendous effects on our environment and poses severe pollution problems a... more Crude oil spills have tremendous effects on our environment and poses severe pollution problems around the world as hazardous chemicals such as polycyclic aromatic hydrocarbons are released into the ecosystem. The clean-up of these spills using natural adsorbent is considered as an eco-friendly and cost effective method of handling the oil spills due to its high oil sorption capacity and biodegradability. Coconut coir predominantly found in the Niger Delta area of Nigeria was carbonized and chemically activated using Potassium Hydroxide (KOH) for the removal of crude oil spill. The kinetic data were fitted into various kinetic models with Pseudo-second order model showing best fit with a correlation coefficient R 2 =0.999 and the Boyd model revealed that the adsorption was controlled by internal transport mechanism and film-diffusion was the major mode of adsorption. Thus, Coconut Coir Activated Carbon (CCAC) showed significant capability to be used as a low-cost, re-generable and e...

The biosorption of Zinc (II) ions onto a biomaterial-Luffa cylindrica has been studied. This biom... more The biosorption of Zinc (II) ions onto a biomaterial-Luffa cylindrica has been studied. This biomaterial was characterized by elemental analysis, surface area, pore size distribution, scanning electron microscopy, and the biomaterial before and after sorption, was characterized by Fourier Transform Infra Red (FTIR) spectrometer. The kinetic nonlinear models fitted were Pseudofirst order, Pseudo-second order and Intra-particle diffusion. A comparison of non-linear regression method in selecting the kinetic model was made. Four error functions, namely coefficient of determination (R 2), hybrid fractional error function (HYBRID), average relative error (ARE), and sum of the errors squared (ERRSQ), were used to predict the parameters of the kinetic models. The strength of this study is that a biomaterial with wide distribution particularly in the tropical world and which occurs as waste material could be put into effective utilization as a biosorbent to address a crucial environmental problem.

Remediation of Environmental Contaminants, 2012

Clay from Ikpoba in Benin city was tested as lowcost adsorbents for Cu(II) and Pb(II) removal fro... more Clay from Ikpoba in Benin city was tested as lowcost adsorbents for Cu(II) and Pb(II) removal from aqueous solutions. A full factorial experimental design was utilized to assess the effect of four factors on the batch adsorption of Cu(II) and Pb(II) with the clay (particle size < 0.02mm). The chosen experimental factors were adsorbent dose, temperature, shaking speed, and contact time. The results indicated that only adsorbent dose had significant effect for both ions. The best conditions for uptake of ions were respectively time of 90 minutes and 60 at 0.2g adsorbent.

Sponge-gourds, the fruit of Luffa cylindrica, are widely used throughout the world. It is an annu... more Sponge-gourds, the fruit of Luffa cylindrica, are widely used throughout the world. It is an annual climbing crop which produces fruit containing fibrous vascular system. Produced water is any water that is present in a reservoir with the hydrocarbon resource and is produced to the surface with the crude oil or natural gas. The residual metallic ion concentrations were determined using an Atomic Absorption Spectrophotometer (AAS). The physico-chemical properties of Produced water before discharge or reinjection into the waterways and reservoir and after treatment with luffa cylindrica were also determined. The percent removal of metal ions present in the produced water under study were 92.31%, 88.64%, 85.71% and 66.67% for Cr 3+ , Zn 2+ , Pb 2+ and Cd 2+ respectively. There were also reduction of Sulphate ions, THC, salinity and conductivity. Luffa cylindrica is an effective biosorbent for the removal of heavy metal ions; offering a cheap option for primary treatment of produced water.

Clay from Ikpoba in Benin city was tested as lowcost adsorbents for Cu(II) and Pb(II) removal fro... more Clay from Ikpoba in Benin city was tested as lowcost adsorbents for Cu(II) and Pb(II) removal from aqueous solutions. A full factorial experimental design was utilized to assess the effect of four factors on the batch adsorption of Cu(II) and Pb(II) with the clay (particle size < 0.02mm). The chosen experimental factors were adsorbent dose, temperature, shaking speed, and contact time. The results indicated that only adsorbent dose had significant effect for both ions. The best conditions for uptake of ions were respectively time of 90 minutes and 60 at 0.2g adsorbent.

Nickel metal contamination exists in industrial processes that use nickel catalysts, such as coal... more Nickel metal contamination exists in industrial processes that use nickel catalysts, such as coal gasification, petroleum refining, and hydrogenation of fats and oils. Therefore, a systematic study on the removal of nickel from wastewater is of considerable significance from an environmental point of view. Luffa cylindrica, a plant material with wide distribution particularly in the tropical world, was characterized as the surface area, chemical bonds, bulk density, Pore size distribution, microstructures, composition, morphology and elemental composition were determined. Biosorption studies were carried out with the dosage varied and the experimental data obtained were fitted to some selected kinetic models. Non-linear regression method was used and the regressed data obtained for the various doses studies ranged from 0.948 to unity. A kinetic model was developed. This empirical model for predicting the sorption capacity for Ni 2+ ions sorbed by Luffa cylindrica was derived from th...

Crude oil spills have tremendous effects on our environment and poses severe pollution problems a... more Crude oil spills have tremendous effects on our environment and poses severe pollution problems around the world as hazardous chemicals such as polycyclic aromatic hydrocarbons are released into the ecosystem. The clean-up of these spills using natural adsorbent is considered as an eco-friendly and cost effective method of handling the oil spills due to its high oil sorption capacity and biodegradability. Coconut coir predominantly found in the Niger Delta area of Nigeria was carbonized and chemically activated using Potassium Hydroxide (KOH) for the removal of crude oil spill. The kinetic data were fitted into various kinetic models with Pseudo-second order model showing best fit with a correlation coefficient R2=0.999 and the Boyd model revealed that the adsorption was controlled by internal transport mechanism and film-diffusion was the major mode of adsorption. Thus, Coconut Coir Activated Carbon (CCAC) showed significant capability to be used as a low-cost, re-generable and eco...

Environmental pollution due to the discharge of heavy metals from various industries, including m... more Environmental pollution due to the discharge of heavy metals from various industries, including metal plating, mining, painting and agricultural sources such as fertilizers and fungicidal sprays are causing significant concern because of their toxicity and threat to human life, especially when tolerance levels are exceeded (Gupta et al., 2009). The species with the most toxicological relevance found in the industrial effluents are the heavy metals. These species are bio-accumulative and not biodegradable over time (Abdel-Ghani et al., 2009). Activated carbon is the most employed adsorbent for heavy metal removal from aqueous solution (Mohan et al., 2005). However, the extensive use of activated carbon for metal removal from industrial effluents is expensive (Babel and Kurniawan, 2003), limiting its large application for wastewater treatment. Therefore, there is a growing interest in finding new alternative low-cost adsorbents for metal removal from aqueous solution, such as: microorganisms (

Optimization of plantain drying process parameters to obtained high quality product is very vital... more Optimization of plantain drying process parameters to obtained high quality product is very vital as improper drying conditions can affect the composition of the plantain flour and thereby increases the risk of running into deterioration of the nutrient contents of the product and loss. Matured unripe plantains were processed by washing, peeling and cut into required size. The samples obtained were analysed in triplicate using different drying oven temperatures (60, 70 and 80C) and time (187, 242, and 311 minutes) at pulp size of 3 mm by employing Design of experiment (DOE). Statistical analysis and Response surface methodology based on the D-Optimal were carried out. The significant factors on the experimental design response were identified from the analysis of variance. The optimum conditions for the processing of unripe plantain into dry product were obtained by using temperature of 80C, time of 187 minutes and pulp size of 3 mm which resulted in final carbohydrate content of 87...

African Journal of Agricultural Research, 2009

Sponge-gourds, the fruit of Luffa cylindrica, are widely used throughout the world. It is an annu... more Sponge-gourds, the fruit of Luffa cylindrica, are widely used throughout the world. It is an annual climbing crop which produces fruit containing fibrous vascular system. It is a summer season vegetable. At the moment, from the results of studies carried out on this wonder crop, it encourages the commercial cultivation of the crop because of its increasing economic importance. The objective of this review is to show the potentialities of this crop that is virtually found around the globe. Areas such as agriculture, medicine, science, engineering and biotechnology will be discussed. Recent major advances and discoveries will be considered.

International Journal of Research -GRANTHAALAYAH, 2019

The need for predicting the performance of hydrocarbon reservoirs has led to the development of a... more The need for predicting the performance of hydrocarbon reservoirs has led to the development of a number of software in the Petroleum industry. Lots of these available software handled virtually all tasks in reservoir engineering ranging from estimation, forecasting, history matching, among others. That notwithstanding, improvements on these software are still been made and newer versions are released to meet users’ requirements. In this work, software “ULTIMATE” was developed based on production rate decline analysis to predict reservoir performance. Also, the developed software “ULTIMATE” handles Inflow Performance Relationship (IPR) prediction. The developed software prediction based on data obtained from two wells were compared with another software MBAL 10.5 developed by petroleum Experts Limited. The results of the comparison indicated that the developed ULTIMATE software predictions were very close to the MBAL 10.5 predictions. Additionally, the incorporated parallel algorith...

The biosorption of copper (II) ions onto Luffa cylindrica was investigated. Luffa cylindrica, a b... more The biosorption of copper (II) ions onto Luffa cylindrica was investigated. Luffa cylindrica, a biomaterial with wide distribution particularly in the tropical world, is characterized with the surface area, chemical bonds, bulk density, pore size distribution, microstructures, composition, morphology and elemental composition which are determined. Biosorption studies were carried out with varying dosage and the experimental data obtained were fitted to Pseudo-Second order kinetic model. The regression value obtained from the various doses studies ranged from 0.991 to 0.999. A kinectic model was developed mathematically and as well Artificial Neural Network (ANN) was applied to develop a Multiple Input Single Output (MISO) back propagation neural network model which was validated. The RMSE value was found to be 1.2754. Artificial neural network has the capability to predict the sorption capacity quite reasonably for the model.

Poor oxidative stability is demonstrated by most vegetable oils especially in industrial situatio... more Poor oxidative stability is demonstrated by most vegetable oils especially in industrial situations. Antioxidants are widely used for overcoming poor oxidative stability in vegetable oils. The adverse effect of additives on the overall biodegradability of vegetable oil based industrial fluids could however be a concern. Biodegradability provides an indication of the persistence of any particular substance in the environment. The superior biodegradation of vegetable oils in comparison with mineral based oils has been demonstrated severally, leaving scientists with the lone challenge of finding economic and safe means to improve their working efficiency in terms of their poor oxidative stability. This study investigated the extent to which the use of the antioxidant Tertiary butyl hydroquinone (TBHQ) in palm olein impaired biodegradability, and described the relationship between antioxidant loading and biodegradability. Increased antioxidant loading resulted in a matching decrease in ...

2+ . The equilibrium sorption data fitted well the Freundlich model. The experimental data, when ... more 2+ . The equilibrium sorption data fitted well the Freundlich model. The experimental data, when applied to the first and second-order kinetic models, followed both kinetic models with r≤ = 0.898 for GAC from animal horns and r 2 = 0.973 for commercial GAC. The results obtained showed how animal horns, a solid waste from the abattoir at the Oshodi market in Lagos metropolis, was used as an effective adsorbent for the removal of Pb 2+ ions; offering a cheap option for primary treatment of the brewery wastewater effluent.

Biosorption experiment for Zn (II) was investigated in this study using the plant material Luffa ... more Biosorption experiment for Zn (II) was investigated in this study using the plant material Luffa cylindrica. The applicability of some selected kinetic models was tested. Characterization like the surface area, chemical bonds, bulk density, Pore size distribution, microstructures, composition, morphology and elemental composition were determined. The coefficient of determination (R 2 ) of all the models studied were mostly greater than 0.9. In most cases these coefficients were found to be close to one. This indicates that all the kinetic models adequately describe the experimental data of the biosorption of Zn (II) ions. Kinectic models were developed mathematically, and also, Artificial Neural Network (ANN) was applied to develop a Multiple Input Single Output (MISO) back propagation neural network model which was validated. The RMSE value was found to be 0.5912 and 1.6267 for MISO Zn-1 and MISO Zn-2 respectively. Artificial neural network was able to predict the sorption capacity...

Fischer–Tropsch synthesis (FTS) is a catalytic process that can be used to produce hydrocarbons, ... more Fischer–Tropsch synthesis (FTS) is a catalytic process that can be used to produce hydrocarbons, oxygenates and H2O among other products from synthesis gas, which can be derived from natural gas, coal, or biomass. It is a key component in Gas-to-Liquid (GTL), Biomass-to-Liquid (BTL) and Coal-to-Liquid (CTL) technology. The goal of the proposed work described in this Final Report was to show the distribution of the major product (hydrocarbon) with carbon number ranging from 1-37 assuming ideal kinetics of Anderson-Schulz-Flory (ASF) distribution model. The distributions of FT hydrocarbon product have best been described by Anderson-Schulz-Flory distribution model. The formation of long chain hydrocarbon product will depend on increasing chain growth probability and that the maximum selectivity of gasoline and diesel range products were 46% and 29% respectively. The selectivity of FT products as described by AndersonSchulz–Flory (ASF) distribution model is a one parameter factor and d...

This experimental study compared the extracts from an indigenous plant (Chromoleana odorata). The... more This experimental study compared the extracts from an indigenous plant (Chromoleana odorata). The extraction was carried out using ethanol and distilled water as solvents. The extracts obtained using both solvents were separately applied on three microorganisms namely Staphylococcus aureaus, Echerichia coli and Aspergillus niger. The results showed that Chromolaena odorata leaf extracts were effective in inhibiting the microorganisms used for the study at concentration ranging from 0.06 to 0.12 g/ml for the extract with ethanol as solvent and 0.07 to 0.10 g/ml for the extract with distilled water as solvent. From the results both extracts could be applied as potential medicated agents in the production of soap.

Physiochemical properties of wastewater effluent from the plants of a brewery in Lagos, Nigeria w... more Physiochemical properties of wastewater effluent from the plants of a brewery in Lagos, Nigeria were analyzed. The adsorption capacity of Granular activated carbon from animal horns when compared with the available commercial Granulated Activated Carbon (GAC) has been presented. Kinetics of adsorption was also investigated. The adsorption isotherms could be well defined with Freundlich model instead of Langmuir model for both GAC studied. The experimental data, when applied to the first and second-order kinetic models, followed the first-order with r² = 0.931 for GAC from animal horns while commercial GAC followed the second-order with r² = 0.936. The results illustrated how animal horns, a solid waste disposal menace from the abattoir at the Oshodi market in Lagos metropolis, was used as an effective biosorbent for the removal of Zn2+ ions; offering a cheap option for primary treatment of the wastewater effluent. Keywords— Biosorption, animal horns, Granulated Activated Carbon, was...

2+ ions was 66.5 with an effective dose of 1.0 g of dried C. albidum seeds at pH 7.0 shaken for 2... more 2+ ions was 66.5 with an effective dose of 1.0 g of dried C. albidum seeds at pH 7.0 shaken for 2 h at 300 r.p.m. The ability of C. albidum seeds to absorb metal ions as shown from the results can be used for the development of a cheap technology for effluent treatment.

Journal of Energy, Environmental & Chemical Engineering, 2021

Crude oil spills have tremendous effects on our environment and poses severe pollution problems a... more Crude oil spills have tremendous effects on our environment and poses severe pollution problems around the world as hazardous chemicals such as polycyclic aromatic hydrocarbons are released into the ecosystem. The clean-up of these spills using natural adsorbent is considered as an eco-friendly and cost effective method of handling the oil spills due to its high oil sorption capacity and biodegradability. Coconut coir predominantly found in the Niger Delta area of Nigeria was carbonized and chemically activated using Potassium Hydroxide (KOH) for the removal of crude oil spill. The kinetic data were fitted into various kinetic models with Pseudo-second order model showing best fit with a correlation coefficient R 2 =0.999 and the Boyd model revealed that the adsorption was controlled by internal transport mechanism and film-diffusion was the major mode of adsorption. Thus, Coconut Coir Activated Carbon (CCAC) showed significant capability to be used as a low-cost, re-generable and e...

The biosorption of Zinc (II) ions onto a biomaterial-Luffa cylindrica has been studied. This biom... more The biosorption of Zinc (II) ions onto a biomaterial-Luffa cylindrica has been studied. This biomaterial was characterized by elemental analysis, surface area, pore size distribution, scanning electron microscopy, and the biomaterial before and after sorption, was characterized by Fourier Transform Infra Red (FTIR) spectrometer. The kinetic nonlinear models fitted were Pseudofirst order, Pseudo-second order and Intra-particle diffusion. A comparison of non-linear regression method in selecting the kinetic model was made. Four error functions, namely coefficient of determination (R 2), hybrid fractional error function (HYBRID), average relative error (ARE), and sum of the errors squared (ERRSQ), were used to predict the parameters of the kinetic models. The strength of this study is that a biomaterial with wide distribution particularly in the tropical world and which occurs as waste material could be put into effective utilization as a biosorbent to address a crucial environmental problem.

Remediation of Environmental Contaminants, 2012

Clay from Ikpoba in Benin city was tested as lowcost adsorbents for Cu(II) and Pb(II) removal fro... more Clay from Ikpoba in Benin city was tested as lowcost adsorbents for Cu(II) and Pb(II) removal from aqueous solutions. A full factorial experimental design was utilized to assess the effect of four factors on the batch adsorption of Cu(II) and Pb(II) with the clay (particle size < 0.02mm). The chosen experimental factors were adsorbent dose, temperature, shaking speed, and contact time. The results indicated that only adsorbent dose had significant effect for both ions. The best conditions for uptake of ions were respectively time of 90 minutes and 60 at 0.2g adsorbent.

There is growing interest in using low cost materials for adsorption as alternatives to activated... more There is growing interest in using low cost materials for adsorption as alternatives to activated carbon. The biosorption of copper (II) ions onto Luffa cylindrica as sorbent was studied in this work. Luffa cylindrica was characterized by elemental analysis, surface area, pore size distribution, scanning electron microscopy, and Fourier Transform Infra Red (FTIR) spectrometer. Two factors for adsorption namely particle size and agitation speed were considered. The kinetic models fitted were Pseudo-first order, Pseudo-second order and Intra-particle diffusion. Four error functions, namely coefficient of determination (R 2), hybrid fractional error function (HYBRID), average relative error (ARE) and sum of the errors squared (ERRSQ), were used to predict the best kinetic models for Cu 2+ ions biosorption onto Luffa cylindrica by varying the particle sizes and agitation speed. A coefficient of non-determination, K 2 was explained and was found to be very useful in identifying the best error function while selecting the best kinetic models. The results obtained showed that all the error functions studied were able to select the pseudo second order and the intra-particle diffusion models as the best kinetic models for particle sizes and agitation speeds for this work.