Omoleye Abiodun James | Covenant University (original) (raw)

Papers by Omoleye Abiodun James

International Journal of Food Sciences and Nutrition, 2018

The effect of temperature on the nutritional values of fermented African locust bean (Parkia bigl... more The effect of temperature on the nutritional values of fermented African locust bean (Parkia biglobosa) seed were studied. Temperatures ranging between 40 to 70⁰C were used for the fermentation. Biochemical and physiological analysis were evaluated. Highest nutritional values were obtained with samples fermented at lower temperatures (40 and 50⁰C) and they all had acceptable end products while all the samples fermented with higher temperature (60 and 70⁰C) gave poor nutritional values with unacceptable end products. Bacillus subtilis was used as starter culture and fermentation was carried out for 5 days (120 hours). An increase in moisture, protein, crude fat contents and decrease in total carbohydrate and crude fibre were noticed for all the fermentation temperature variation. The Organic functional groups were identified and characterized using Fourier Transform Infrared (FTIR) spectroscopy. The effect of temperature on the morphological structure of fermented samples

The optimum conditions for the fermentation of African locust bean (Parkia biglobosa) into a vege... more The optimum conditions for the fermentation of African locust bean (Parkia biglobosa) into a vegetable protein based condiment (Iru) were developed using Response Surface Method (RSM) with three (3) variables namely; inoculum concentration (X1), temperature (X2) and the fermentation duration (X3). African locust bean seeds were fermented at various temperature of 40, 50, 60 and 70 °С for five days (120 hours) with different concentrations of Inoculum. The interaction effects of these three variables on the % protein composition (X4) have been investigated using Central Composite Design (CCD) factional factorial design of experiments. The proximate analysis shows that fermentation increased the percentage protein and fat content. Protein had the highest composition with about 53 % after 72 hours at the lowest fermentation temperature of 40°С. Other parameters like % crude fibre, % ash content and % carbohydrate decreased with hours of fermentation and with increase in temperature. Fr...

This research was aimed at designing an industrial process for the production of Ogi from the fer... more This research was aimed at designing an industrial process for the production of Ogi from the fermentation of maize, using a powdered substrate. This was achieved by reviewing the traditional process and introducing a revised process. The steps involved in the revised process included grinding, sieving, fermenting (under anaerobic conditions) and drying. Analysis of varying fermented samples to overall composition of substrate (2-10%), varying moisture content (83-152%), varying temperature (30-50℃) and time (4-84 hours); and their effect on the growth rate of the active microorganisms was carried out. Also, microbiology tests are carried out using the traditional process and the revised process and the observations recorded. A controlled environment is proven to be created by introducing anaerobic conditions to the process. The model is obtained from this analysis and the optimal values for the target acidity value of 2.9 is given. It is concluded from the results obtained that the revised process adopted in this research is suitable for industrial production of Ogi.

The quality of African locust bean seed fermented with three (3) different types of starter cultu... more The quality of African locust bean seed fermented with three (3) different types of starter cultures were investigated. Freshly prepared Bacillus Subtilis, Saccharomyces cerevisiae and the mixture of the two starter cultures were used for the fermentation Parkia biglobosa seeds for five (5) days (120 hours). The proximate composition, sensory evaluation and physiological properties of the starter culture aided and naturally fermented samples were determined. Sample fermented with Bacillus subtilis increased the protein composition from 32 % to 52 %, Saccharomyces cerevisiae to 39 %, the mixture of the 2 microorganisms to 35 % while 40 % was obtained in the naturally inoculated sample. Fat, moisture and ash contents also increased in the same trend. However there was a decrease in crude fibre composition and total % carbohydrate of the substrate during fermentation. Sensory evaluation carried out for all the samples indicated that the use of bacillus subtilis as starter culture for t...

Ain Shams Engineering Journal, 2022

IOP Conference Series: Earth and Environmental Science, 2021

Emissions fromused lubricant could have adverse effect on man and its environment due to the pres... more Emissions fromused lubricant could have adverse effect on man and its environment due to the presence of degraded additives and contaminants. Different treatment methodshas been developed with few check on its pollution aspect. This study investigated the emissions of two major criteria pollutants - carbon monoxide (CO) and sulphur dioxide (SO2) from the solvent extraction treatment of used lubricant. CO was found to be the highest emitting pollutant with mean emission concentration of 85.85 mg/m3 which has exceeded the set NAQS standard while SO2 falls within the standard limit. Therefore, there is a great need to give attention to the control of CO emissions around the treatment plant. However, CO emission can be controlled by employing a CO converter to convert the poisonous gas to a less poisonous gas or substituting the existing process in solvent extraction with a more environmentally friendly one.

The biochemical and physiological changes in the highly proteinous stored fermented African locus... more The biochemical and physiological changes in the highly proteinous stored fermented African locust bean parkia biglobosa seeds were studied as well as the sensory evaluation. This study was carried out to improve the shelf life of this fermented protein based condiment, known as ‘Iru’ in Yoruba land. Major functional parameters were used to compare deterioration in stored fermented seeds. Bacillus subtilis was used as a starter culture and fermentation was carried out for 72 hours. Samples were dried to various moisture content. The dried condiments were stored for various days at room temperature in an air tight plastic container. At the end of each storage period, samples were and assessed for pH, titratable acidity (TA), peroxide value (POV) and % crude protein. There was an increase in pH, peroxide value and titratable acidity towards acidity, while the % crude protein decreased with storage. Total dryness of 0 % moisture content was achieved after 12 hours of drying, which made...

IOP Conference Series: Earth and Environmental Science, 2021

Literature search has revealed that most post-combustion CO2 capture processes available to power... more Literature search has revealed that most post-combustion CO2 capture processes available to power plants are hinged on sorption technologies (chemical absorption and desorption) which are cost and energy-intensive. The colossal cost of solvents used for the absorption of CO2, the high energy requirements for the absorption & solvent recovery processes, plant design & control related complications, and environmental concerns about the solvents are some of the challenges associated with this option of post-combustion CO2 capture approach which is widely being adopted to mitigate CO2 emissions from power plants. In this study, the capture of CO2 from flue gas by exploring the concept of change of state of matter, which is essentially a physical approach to CO2capture, is presented as an alternative to the typical methods in the industry.

IOP Conference Series: Materials Science and Engineering, 2021

In cement industries, grate coolers are commonly used for heat recovery from hot clinker discharg... more In cement industries, grate coolers are commonly used for heat recovery from hot clinker discharged from the rotary kiln. The study focuses on improving a grate cooling system’s energy, exergy, and recovery efficiencies by optimizing its operating parameters such as cooling air and clinker mass flow rate. Aspen plus V10 process simulator was used to explore the impact of clinker mass, and ambient cooling airflow rate on the thermodynamics efficiencies of a cooling system for grate cooler. The energy and exergy efficiency of the grate clinker cooler gives estimates of 85.9% and 56.2 % respectively. Whereas the energy and exergy recovery of the grate clinker cooler was estimated as 75.9 % and 45.4 % respectively. It was found that a cooling system’s energy and exergy efficiencies can be improved by 2.1 % and 2.2 %, respectively, for each 5 % rise in cooling air mass. Considering the utilization of the heat recovery efficiencies of the exhaust air cooling system, energy and exergy reco...

African Locust Bean (Parkia biglobosa) seeds were fermented with the aid of a starter culture - B... more African Locust Bean (Parkia biglobosa) seeds were fermented with the aid of a starter culture - Bacillus subtilis to a vegetable protein based food condiment known as ‘Iru’ at various temperatures between 40 °С and 70 °С. Fermentation was carried out for five days (120 hours). The maximum % protein content yield of 52.7 % was obtained after 3 days (72 hours) at an optimum fermentation temperature of 40 ⁰C. Other parameters like % crude fibre, % ash content, % carbohydrate and % fat content decreased with fermentation temperature and duration. The physiological test carried out showed that fermented sample at the optimized condition were generally acceptable for all parameters tested. The Scanning Electron Microscope (SEM) result shows the effect of temperature on the morphological structure of both fermented and unfermented samples.

Alexandria Engineering Journal, 2021

IOP Conference Series: Earth and Environmental Science, 2021

Electric power is the bedrock of sustainable development in modern society. The demand for its ad... more Electric power is the bedrock of sustainable development in modern society. The demand for its adequate and reliable supply at a very competitive price is continuously increasing with population increase and the industrial revolution. A significant limitation to meeting this demand, is the inefficient operation of several of the existing power plants, resulting in their inability to generate electricity equivalent to their installed capacity. In this study, the exergy based performance evaluation of a major power plant in Nigeria was conducted to identify opportunities for thermodynamic improvement. Historical data of the plant was fed into HYSYS 8.8 to simulate its operations and obtain necessary thermodynamic data for assessing its performance. With the aid of codes embedded in HYSYS and the use of Ms Excel, the synthesized plant’s thermodynamics data was used for its performance evaluation. Components-wise evaluation revealed that apart from the turbines, exergy efficiencies were...

Energy Reports, 2020

Abstract Industrial activities, including the process of power generation from thermal plants, ar... more Abstract Industrial activities, including the process of power generation from thermal plants, are inevitably associated with the generation of gaseous wastes and particulate matters. Industrial activities, therefore, contribute largely to the emission of environmental pollutants. In addition to causing environmental degradation, the emission of pollutants, particularly greenhouse gases, have far-reaching social negative externalities, mainly in the area of unconducive temperature rise and adverse climatic impact. The unintended impacts of industrial emissions have motivated the development of plans and strategies for their abatement. In this study, predictive models of the global warming potential and carbon tax of the gaseous emission at various fuel consumption levels and different air–fuel ratio for the combustion process in a thermal power plant were developed. It is expected that the models serve as a veritable tool for projecting the environmental & economic costs of natural gas burning and optimizing the process of the fuel combustion for lower greenhouse gas emissions.

Journal of Nutritional Health & Food Engineering, 2018

The present study described the use of percentage moisture left and salting as a preservative met... more The present study described the use of percentage moisture left and salting as a preservative method in studying the shelf life of fermented Parkia biglobosa (African Locust bean seed) over a period of four weeks. Bacillus subtilis was used as starter culture in the fermentation of Parkia biglobosa to 'Iru'. Fermented samples [Iru] were dried to various% moisture content and salt of various concentrations were added. Samples were stored for four weeks at room temperature in an air tight plastic container. Functional properties such as pH,% protein,% titratable acidity and peroxide value of the seeds were analyzed on weekly basis during the storage period. Protein concentration of the preserved samples varied with different drying time and% salt added. There was an increase in titratable acidity and peroxide values towards acidity during preservation.

Journal of Nutritional Health & Food Engineering, 2018

The present study described the use of percentage moisture left and salting as a preservative met... more The present study described the use of percentage moisture left and salting as a preservative method in studying the shelf life of fermented Parkia biglobosa (African Locust bean seed) over a period of four weeks. Bacillus subtilis was used as starter culture in the fermentation of Parkia biglobosa to 'Iru'. Fermented samples [Iru] were dried to various% moisture content and salt of various concentrations were added. Samples were stored for four weeks at room temperature in an air tight plastic container. Functional properties such as pH,% protein,% titratable acidity and peroxide value of the seeds were analyzed on weekly basis during the storage period. Protein concentration of the preserved samples varied with different drying time and% salt added. There was an increase in titratable acidity and peroxide values towards acidity during preservation.

Fuel, 2013

h i g h l i g h t s " Hydrogen peroxide and lime based oxidative pretreatment of wood waste. " Re... more h i g h l i g h t s " Hydrogen peroxide and lime based oxidative pretreatment of wood waste. " Response surface methodology was used to optimize the process parameters. " Optimum conditions of 150°C, 1% H 2 O 2 , and 45 min were predicted and validated. " 59% (w/w) cellulose content was retained in the solid fraction. " Reducing sugars yield from pretreated material was up to 263.49 mg g À1 dry biomass.

Zeolite Y was synthesized from Arobieye mined kaolin in Ota, Ogun state Nigeria through metakaoli... more Zeolite Y was synthesized from Arobieye mined kaolin in Ota, Ogun state Nigeria through metakaolinization and zeolitization. The thermal activation of kaolin was achieved through the process of metakaolinization while zeolitization involved alkaline attack of thermally activated amorphous kaolin (metakaolin) and its transformation into Zeolite Y crystal. Silica/Alumina molar ratio of 5.84 of dealuminated metakaolin was synthesized under hydrothermal treatment with aqeous NaOH at atmospheric pressure after 7 days aging at room temperature, and hydrothermally crystallized at 100oC for 24 hours. Zeolite NaY with Si/Al molar ratio of 3.46 was achieved and then modified to its hydrogen form by ion exchange with NH4Cl. The molar ratio of Zeolite Y in hydrogen form is 3.22. The sample was characterized by Scanning Electron Microscope (SEM) which gives Zeolite Y Structure.

A novel approach of for the formation of Hydrated Sodium Aluminium Sulpahte (Alum) from metakaoli... more A novel approach of for the formation of Hydrated Sodium Aluminium Sulpahte (Alum) from metakaolin was employed in this study. This process was used to form alum from metakaolin. It majorly involves captivating the self generated energy as a result of acid solvating in metakaolin-water solution to supply the mixing and activation energies requirement of the process without external heat source. The study gives a regression equation for the formation of Alum at a given volume of acid per gram metakaolin, temperature of reaction and desired conversion level.

International Journal of Food Sciences and Nutrition, 2018

The effect of temperature on the nutritional values of fermented African locust bean (Parkia bigl... more The effect of temperature on the nutritional values of fermented African locust bean (Parkia biglobosa) seed were studied. Temperatures ranging between 40 to 70⁰C were used for the fermentation. Biochemical and physiological analysis were evaluated. Highest nutritional values were obtained with samples fermented at lower temperatures (40 and 50⁰C) and they all had acceptable end products while all the samples fermented with higher temperature (60 and 70⁰C) gave poor nutritional values with unacceptable end products. Bacillus subtilis was used as starter culture and fermentation was carried out for 5 days (120 hours). An increase in moisture, protein, crude fat contents and decrease in total carbohydrate and crude fibre were noticed for all the fermentation temperature variation. The Organic functional groups were identified and characterized using Fourier Transform Infrared (FTIR) spectroscopy. The effect of temperature on the morphological structure of fermented samples

The optimum conditions for the fermentation of African locust bean (Parkia biglobosa) into a vege... more The optimum conditions for the fermentation of African locust bean (Parkia biglobosa) into a vegetable protein based condiment (Iru) were developed using Response Surface Method (RSM) with three (3) variables namely; inoculum concentration (X1), temperature (X2) and the fermentation duration (X3). African locust bean seeds were fermented at various temperature of 40, 50, 60 and 70 °С for five days (120 hours) with different concentrations of Inoculum. The interaction effects of these three variables on the % protein composition (X4) have been investigated using Central Composite Design (CCD) factional factorial design of experiments. The proximate analysis shows that fermentation increased the percentage protein and fat content. Protein had the highest composition with about 53 % after 72 hours at the lowest fermentation temperature of 40°С. Other parameters like % crude fibre, % ash content and % carbohydrate decreased with hours of fermentation and with increase in temperature. Fr...

This research was aimed at designing an industrial process for the production of Ogi from the fer... more This research was aimed at designing an industrial process for the production of Ogi from the fermentation of maize, using a powdered substrate. This was achieved by reviewing the traditional process and introducing a revised process. The steps involved in the revised process included grinding, sieving, fermenting (under anaerobic conditions) and drying. Analysis of varying fermented samples to overall composition of substrate (2-10%), varying moisture content (83-152%), varying temperature (30-50℃) and time (4-84 hours); and their effect on the growth rate of the active microorganisms was carried out. Also, microbiology tests are carried out using the traditional process and the revised process and the observations recorded. A controlled environment is proven to be created by introducing anaerobic conditions to the process. The model is obtained from this analysis and the optimal values for the target acidity value of 2.9 is given. It is concluded from the results obtained that the revised process adopted in this research is suitable for industrial production of Ogi.

The quality of African locust bean seed fermented with three (3) different types of starter cultu... more The quality of African locust bean seed fermented with three (3) different types of starter cultures were investigated. Freshly prepared Bacillus Subtilis, Saccharomyces cerevisiae and the mixture of the two starter cultures were used for the fermentation Parkia biglobosa seeds for five (5) days (120 hours). The proximate composition, sensory evaluation and physiological properties of the starter culture aided and naturally fermented samples were determined. Sample fermented with Bacillus subtilis increased the protein composition from 32 % to 52 %, Saccharomyces cerevisiae to 39 %, the mixture of the 2 microorganisms to 35 % while 40 % was obtained in the naturally inoculated sample. Fat, moisture and ash contents also increased in the same trend. However there was a decrease in crude fibre composition and total % carbohydrate of the substrate during fermentation. Sensory evaluation carried out for all the samples indicated that the use of bacillus subtilis as starter culture for t...

Ain Shams Engineering Journal, 2022

IOP Conference Series: Earth and Environmental Science, 2021

Emissions fromused lubricant could have adverse effect on man and its environment due to the pres... more Emissions fromused lubricant could have adverse effect on man and its environment due to the presence of degraded additives and contaminants. Different treatment methodshas been developed with few check on its pollution aspect. This study investigated the emissions of two major criteria pollutants - carbon monoxide (CO) and sulphur dioxide (SO2) from the solvent extraction treatment of used lubricant. CO was found to be the highest emitting pollutant with mean emission concentration of 85.85 mg/m3 which has exceeded the set NAQS standard while SO2 falls within the standard limit. Therefore, there is a great need to give attention to the control of CO emissions around the treatment plant. However, CO emission can be controlled by employing a CO converter to convert the poisonous gas to a less poisonous gas or substituting the existing process in solvent extraction with a more environmentally friendly one.

The biochemical and physiological changes in the highly proteinous stored fermented African locus... more The biochemical and physiological changes in the highly proteinous stored fermented African locust bean parkia biglobosa seeds were studied as well as the sensory evaluation. This study was carried out to improve the shelf life of this fermented protein based condiment, known as ‘Iru’ in Yoruba land. Major functional parameters were used to compare deterioration in stored fermented seeds. Bacillus subtilis was used as a starter culture and fermentation was carried out for 72 hours. Samples were dried to various moisture content. The dried condiments were stored for various days at room temperature in an air tight plastic container. At the end of each storage period, samples were and assessed for pH, titratable acidity (TA), peroxide value (POV) and % crude protein. There was an increase in pH, peroxide value and titratable acidity towards acidity, while the % crude protein decreased with storage. Total dryness of 0 % moisture content was achieved after 12 hours of drying, which made...

IOP Conference Series: Earth and Environmental Science, 2021

Literature search has revealed that most post-combustion CO2 capture processes available to power... more Literature search has revealed that most post-combustion CO2 capture processes available to power plants are hinged on sorption technologies (chemical absorption and desorption) which are cost and energy-intensive. The colossal cost of solvents used for the absorption of CO2, the high energy requirements for the absorption & solvent recovery processes, plant design & control related complications, and environmental concerns about the solvents are some of the challenges associated with this option of post-combustion CO2 capture approach which is widely being adopted to mitigate CO2 emissions from power plants. In this study, the capture of CO2 from flue gas by exploring the concept of change of state of matter, which is essentially a physical approach to CO2capture, is presented as an alternative to the typical methods in the industry.

IOP Conference Series: Materials Science and Engineering, 2021

In cement industries, grate coolers are commonly used for heat recovery from hot clinker discharg... more In cement industries, grate coolers are commonly used for heat recovery from hot clinker discharged from the rotary kiln. The study focuses on improving a grate cooling system’s energy, exergy, and recovery efficiencies by optimizing its operating parameters such as cooling air and clinker mass flow rate. Aspen plus V10 process simulator was used to explore the impact of clinker mass, and ambient cooling airflow rate on the thermodynamics efficiencies of a cooling system for grate cooler. The energy and exergy efficiency of the grate clinker cooler gives estimates of 85.9% and 56.2 % respectively. Whereas the energy and exergy recovery of the grate clinker cooler was estimated as 75.9 % and 45.4 % respectively. It was found that a cooling system’s energy and exergy efficiencies can be improved by 2.1 % and 2.2 %, respectively, for each 5 % rise in cooling air mass. Considering the utilization of the heat recovery efficiencies of the exhaust air cooling system, energy and exergy reco...

African Locust Bean (Parkia biglobosa) seeds were fermented with the aid of a starter culture - B... more African Locust Bean (Parkia biglobosa) seeds were fermented with the aid of a starter culture - Bacillus subtilis to a vegetable protein based food condiment known as ‘Iru’ at various temperatures between 40 °С and 70 °С. Fermentation was carried out for five days (120 hours). The maximum % protein content yield of 52.7 % was obtained after 3 days (72 hours) at an optimum fermentation temperature of 40 ⁰C. Other parameters like % crude fibre, % ash content, % carbohydrate and % fat content decreased with fermentation temperature and duration. The physiological test carried out showed that fermented sample at the optimized condition were generally acceptable for all parameters tested. The Scanning Electron Microscope (SEM) result shows the effect of temperature on the morphological structure of both fermented and unfermented samples.

Alexandria Engineering Journal, 2021

IOP Conference Series: Earth and Environmental Science, 2021

Electric power is the bedrock of sustainable development in modern society. The demand for its ad... more Electric power is the bedrock of sustainable development in modern society. The demand for its adequate and reliable supply at a very competitive price is continuously increasing with population increase and the industrial revolution. A significant limitation to meeting this demand, is the inefficient operation of several of the existing power plants, resulting in their inability to generate electricity equivalent to their installed capacity. In this study, the exergy based performance evaluation of a major power plant in Nigeria was conducted to identify opportunities for thermodynamic improvement. Historical data of the plant was fed into HYSYS 8.8 to simulate its operations and obtain necessary thermodynamic data for assessing its performance. With the aid of codes embedded in HYSYS and the use of Ms Excel, the synthesized plant’s thermodynamics data was used for its performance evaluation. Components-wise evaluation revealed that apart from the turbines, exergy efficiencies were...

Energy Reports, 2020

Abstract Industrial activities, including the process of power generation from thermal plants, ar... more Abstract Industrial activities, including the process of power generation from thermal plants, are inevitably associated with the generation of gaseous wastes and particulate matters. Industrial activities, therefore, contribute largely to the emission of environmental pollutants. In addition to causing environmental degradation, the emission of pollutants, particularly greenhouse gases, have far-reaching social negative externalities, mainly in the area of unconducive temperature rise and adverse climatic impact. The unintended impacts of industrial emissions have motivated the development of plans and strategies for their abatement. In this study, predictive models of the global warming potential and carbon tax of the gaseous emission at various fuel consumption levels and different air–fuel ratio for the combustion process in a thermal power plant were developed. It is expected that the models serve as a veritable tool for projecting the environmental & economic costs of natural gas burning and optimizing the process of the fuel combustion for lower greenhouse gas emissions.

Journal of Nutritional Health & Food Engineering, 2018

The present study described the use of percentage moisture left and salting as a preservative met... more The present study described the use of percentage moisture left and salting as a preservative method in studying the shelf life of fermented Parkia biglobosa (African Locust bean seed) over a period of four weeks. Bacillus subtilis was used as starter culture in the fermentation of Parkia biglobosa to 'Iru'. Fermented samples [Iru] were dried to various% moisture content and salt of various concentrations were added. Samples were stored for four weeks at room temperature in an air tight plastic container. Functional properties such as pH,% protein,% titratable acidity and peroxide value of the seeds were analyzed on weekly basis during the storage period. Protein concentration of the preserved samples varied with different drying time and% salt added. There was an increase in titratable acidity and peroxide values towards acidity during preservation.

Journal of Nutritional Health & Food Engineering, 2018

The present study described the use of percentage moisture left and salting as a preservative met... more The present study described the use of percentage moisture left and salting as a preservative method in studying the shelf life of fermented Parkia biglobosa (African Locust bean seed) over a period of four weeks. Bacillus subtilis was used as starter culture in the fermentation of Parkia biglobosa to 'Iru'. Fermented samples [Iru] were dried to various% moisture content and salt of various concentrations were added. Samples were stored for four weeks at room temperature in an air tight plastic container. Functional properties such as pH,% protein,% titratable acidity and peroxide value of the seeds were analyzed on weekly basis during the storage period. Protein concentration of the preserved samples varied with different drying time and% salt added. There was an increase in titratable acidity and peroxide values towards acidity during preservation.

Fuel, 2013

h i g h l i g h t s " Hydrogen peroxide and lime based oxidative pretreatment of wood waste. " Re... more h i g h l i g h t s " Hydrogen peroxide and lime based oxidative pretreatment of wood waste. " Response surface methodology was used to optimize the process parameters. " Optimum conditions of 150°C, 1% H 2 O 2 , and 45 min were predicted and validated. " 59% (w/w) cellulose content was retained in the solid fraction. " Reducing sugars yield from pretreated material was up to 263.49 mg g À1 dry biomass.

Zeolite Y was synthesized from Arobieye mined kaolin in Ota, Ogun state Nigeria through metakaoli... more Zeolite Y was synthesized from Arobieye mined kaolin in Ota, Ogun state Nigeria through metakaolinization and zeolitization. The thermal activation of kaolin was achieved through the process of metakaolinization while zeolitization involved alkaline attack of thermally activated amorphous kaolin (metakaolin) and its transformation into Zeolite Y crystal. Silica/Alumina molar ratio of 5.84 of dealuminated metakaolin was synthesized under hydrothermal treatment with aqeous NaOH at atmospheric pressure after 7 days aging at room temperature, and hydrothermally crystallized at 100oC for 24 hours. Zeolite NaY with Si/Al molar ratio of 3.46 was achieved and then modified to its hydrogen form by ion exchange with NH4Cl. The molar ratio of Zeolite Y in hydrogen form is 3.22. The sample was characterized by Scanning Electron Microscope (SEM) which gives Zeolite Y Structure.

A novel approach of for the formation of Hydrated Sodium Aluminium Sulpahte (Alum) from metakaoli... more A novel approach of for the formation of Hydrated Sodium Aluminium Sulpahte (Alum) from metakaolin was employed in this study. This process was used to form alum from metakaolin. It majorly involves captivating the self generated energy as a result of acid solvating in metakaolin-water solution to supply the mixing and activation energies requirement of the process without external heat source. The study gives a regression equation for the formation of Alum at a given volume of acid per gram metakaolin, temperature of reaction and desired conversion level.