Excel O Amaefule | Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria (original) (raw)
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Papers by Excel O Amaefule
Traektoriâ nauki, Jul 30, 2022
Traektoriâ nauki, Sep 30, 2023
Path of Science
Adsorption processes have seen a broad level of usage by various researchers over the years to re... more Adsorption processes have seen a broad level of usage by various researchers over the years to remove heavy metals from waste streams. An adsorbent frequently used is activated carbon. Although activated carbon is used extensively in water and wastewater industries, it remains expensive. In recent years, there has been a need for economical and safe methods for heavy metal elimination from contaminated water. This need has only grown, which gave rise to research aimed toward producing low-cost alternatives to activated carbon. There is an urgent need to explore all possible sources of inexpensive agro-based adsorbents, and heavy metal removal's feasibility should be studied in great detail. This research objective is to learn how inexpensive adsorbents can remove heavy metals from wastewater. Treating Automobile battery waste efficiently remains a significant challenge due to its enormous quantity, hazardous nature, and complexity. When effective treatment technology has poor implementation, this aggravates the situation and worsens the situation further in countries with high and rising populations. This leads to more pressures of urbanisation and industrials, giving room for more industrial waste. This research suggests the best possible options by critically reviewing the existing practices. While slow biological treatment schemes usually fail to support microbial activities in the presence of toxic components in concentrations, other physicochemical plans often need to meet strict waste disposal and discharge regulations. The approach where sludge disposal is thermally incinerated has never seen environmental justification, and this is because of dioxin release and obnoxious substances transferred directly. Newly emerging membrane-based schemes can be flexible, environmentally friendly, petite, economically selfsufficient, and easy to implement and maintain after installation.
Path of Science
This paper uses MATLAB, a finite element software program to compare the results of several finit... more This paper uses MATLAB, a finite element software program to compare the results of several finite analysis methods for continuous plates and check the degree of correlation with the exact values obtained by Timoshenko (1959) and Cheung (1996). The results showed little or no significant difference between plates in finite elements. Two different finite Numerical techniques are used. The Finite Strip and Exact methods and their results are compared to the results from the MATLAB program. Finite element analysis (FEA) workflow using MATLAB includes generation of meshes, geometry creation, defining physics of load, initial conditions and boundary problems, calculation, and results from visualization. FEA is a very general approach for solving Equations in science and engineering. This work offers solutions to the increasing errors associated with several other numerical methods when solving any equations of plates (сontinuous). It makes it easier to calculate and design larger structures through geometry discretization of plates and plains into more minor elements.
Path of science , 2022
Adsorption processes have seen a broad level of usage by various researchers over the years to re... more Adsorption processes have seen a broad level of usage by various researchers over the years to remove heavy metals from waste streams. An adsorbent frequently used is activated carbon. Although activated carbon is used extensively in water and wastewater industries, it remains expensive. In recent years, there has been a need for economical and safe methods for heavy metal elimination from contaminated water. This need has only grown, which gave rise to research aimed toward producing low-cost alternatives to activated carbon. There is an urgent need to explore all possible sources of inexpensive agro-based adsorbents, and heavy metal removal's feasibility should be studied in great detail. This research objective is to learn how inexpensive adsorbents can remove heavy metals from wastewater. Treating Automobile battery waste efficiently remains a significant challenge due to its enormous quantity, hazardous nature, and complexity. When effective treatment technology has poor implementation, this aggravates the situation and worsens the situation further in countries with high and rising populations. This leads to more pressures of urbanisation and industrials, giving room for more industrial waste. This research suggests the best possible options by critically reviewing the existing practices. While slow biological treatment schemes usually fail to support microbial activities in the presence of toxic components in concentrations, other physicochemical plans often need to meet strict waste disposal and discharge regulations. The approach where sludge disposal is thermally incinerated has never seen environmental justification, and this is because of dioxin release and obnoxious substances transferred directly. Newly emerging membrane-based schemes can be flexible, environmentally friendly, petite, economically selfsufficient, and easy to implement and maintain after installation.
Path of Science , 2022
This paper uses MATLAB, a finite element software program to compare the results of several finit... more This paper uses MATLAB, a finite element software program to compare the results of several finite analysis methods for continuous plates and check the degree of correlation with the exact values obtained by Timoshenko (1959) and Cheung (1996). The results showed little or no significant difference between plates in finite elements. Two different finite Numerical techniques are used. The Finite Strip and Exact methods and their results are compared to the results from the MATLAB program. Finite element analysis (FEA) workflow using MATLAB includes generation of meshes, geometry creation, defining physics of load, initial conditions and boundary problems, calculation, and results from visualization. FEA is a very general approach for solving Equations in science and engineering. This work offers solutions to the increasing errors associated with several other numerical methods when solving any equations of plates (сontinuous). It makes it easier to calculate and design larger structures through geometry discretization of plates and plains into more minor elements.
Path of Science , 2022
The significant treatment costs of drinking water make treated water costly, raising the price of... more The significant treatment costs of drinking water make treated water costly, raising the price of clean and helping make clean water inaccessible to the poor people in rural communities. This compels them to turn to readily available sources which are mainly contaminated. This subjects them to waterborne diseases. In this context, this study was carried out to validate the efficiency and, if feasible, the substitution of Ferric Chloride utilised in the treatment of water using Moringa Oleifera seeds, a cheap and widely accessible indigenous coagulant. The quality of water was tested on collection compared to those treated with Ferric Chloride and Moringa Seeds. Doses of 5 g, 10 g, 15 g, 20 g, 25 g and 30 g of both coagulants were used to treat 500 ml of water. Control water without Ferric Chloride and Moringa treatments was included. The pH, turbidity, conductivity and COD were measured. From the ANOVA statistical analysis, several factors such as pH were analysed, and there was a wide variation between the two treatments of Moringa and Ferric Chloride.
Path of Science
This study investigated the comparative effects of Schema-focused cognitive therapy and self-expl... more This study investigated the comparative effects of Schema-focused cognitive therapy and self-exploratory therapy on avoidant personality disorder among Secondary School Students in Imo state. The researcher asked two research questions and formulated two hypotheses to guide the study. The study adopted a quasi-experiment design. The population of the study is 98054. A purposive sampling technique was used to select 48 SSS II students for the study. The instruments for data collection are the Students avoidant personality problem identification rating scale for students and the Students avoidance personality problem checklist for the teachers. Five specialists validated the instrument. The reliability coefficient of 0.76 was obtained using Cronbach Alpha. Data were analysed using mean, standard deviation and ANCOVA F-ratio. The study's findings show that the mean rating scores on avoidant personality disorder of the participants exposed to schema-focused cognitive therapy and self-exploratory therapy in post-treatment and follow-up do not differ significantly. Based on the findings, the researchers recommend that School counsellors should use both schemas-focused cognitive therapy and self-exploratory therapy in the treatment of avoidant personality disorder since they were found to have a significant effect on the condition.
Path of Science, 2022
This study investigated the comparative effects of Schema-focused cognitive therapy and self-expl... more This study investigated the comparative effects of Schema-focused cognitive therapy and self-exploratory therapy on avoidant personality disorder among Secondary School Students in Imo state. The researcher asked two research questions and formulated two hypotheses to guide the study. The study adopted a quasi-experiment design. The population of the study is 98054. A purposive sampling technique was used to select 48 SSS II students for the study. The instruments for data collection are the Students avoidant personality problem identification rating scale for students and the Students avoidance personality problem checklist for the teachers. Five specialists validated the instrument. The reliability coefficient of 0.76 was obtained using Cronbach Alpha. Data were analysed using mean, standard deviation and ANCOVA F-ratio. The study's findings show that the mean rating scores on avoidant personality disorder of the participants exposed to schema-focused cognitive therapy and self-exploratory therapy in post-treatment and follow-up do not differ significantly. Based on the findings, the researchers recommend that School counsellors should use both schemas-focused cognitive therapy and self-exploratory therapy in the treatment of avoidant personality disorder since they were found to have a significant effect on the condition.
Traektoriâ nauki, Jul 30, 2022
Traektoriâ nauki, Sep 30, 2023
Path of Science
Adsorption processes have seen a broad level of usage by various researchers over the years to re... more Adsorption processes have seen a broad level of usage by various researchers over the years to remove heavy metals from waste streams. An adsorbent frequently used is activated carbon. Although activated carbon is used extensively in water and wastewater industries, it remains expensive. In recent years, there has been a need for economical and safe methods for heavy metal elimination from contaminated water. This need has only grown, which gave rise to research aimed toward producing low-cost alternatives to activated carbon. There is an urgent need to explore all possible sources of inexpensive agro-based adsorbents, and heavy metal removal's feasibility should be studied in great detail. This research objective is to learn how inexpensive adsorbents can remove heavy metals from wastewater. Treating Automobile battery waste efficiently remains a significant challenge due to its enormous quantity, hazardous nature, and complexity. When effective treatment technology has poor implementation, this aggravates the situation and worsens the situation further in countries with high and rising populations. This leads to more pressures of urbanisation and industrials, giving room for more industrial waste. This research suggests the best possible options by critically reviewing the existing practices. While slow biological treatment schemes usually fail to support microbial activities in the presence of toxic components in concentrations, other physicochemical plans often need to meet strict waste disposal and discharge regulations. The approach where sludge disposal is thermally incinerated has never seen environmental justification, and this is because of dioxin release and obnoxious substances transferred directly. Newly emerging membrane-based schemes can be flexible, environmentally friendly, petite, economically selfsufficient, and easy to implement and maintain after installation.
Path of Science
This paper uses MATLAB, a finite element software program to compare the results of several finit... more This paper uses MATLAB, a finite element software program to compare the results of several finite analysis methods for continuous plates and check the degree of correlation with the exact values obtained by Timoshenko (1959) and Cheung (1996). The results showed little or no significant difference between plates in finite elements. Two different finite Numerical techniques are used. The Finite Strip and Exact methods and their results are compared to the results from the MATLAB program. Finite element analysis (FEA) workflow using MATLAB includes generation of meshes, geometry creation, defining physics of load, initial conditions and boundary problems, calculation, and results from visualization. FEA is a very general approach for solving Equations in science and engineering. This work offers solutions to the increasing errors associated with several other numerical methods when solving any equations of plates (сontinuous). It makes it easier to calculate and design larger structures through geometry discretization of plates and plains into more minor elements.
Path of science , 2022
Adsorption processes have seen a broad level of usage by various researchers over the years to re... more Adsorption processes have seen a broad level of usage by various researchers over the years to remove heavy metals from waste streams. An adsorbent frequently used is activated carbon. Although activated carbon is used extensively in water and wastewater industries, it remains expensive. In recent years, there has been a need for economical and safe methods for heavy metal elimination from contaminated water. This need has only grown, which gave rise to research aimed toward producing low-cost alternatives to activated carbon. There is an urgent need to explore all possible sources of inexpensive agro-based adsorbents, and heavy metal removal's feasibility should be studied in great detail. This research objective is to learn how inexpensive adsorbents can remove heavy metals from wastewater. Treating Automobile battery waste efficiently remains a significant challenge due to its enormous quantity, hazardous nature, and complexity. When effective treatment technology has poor implementation, this aggravates the situation and worsens the situation further in countries with high and rising populations. This leads to more pressures of urbanisation and industrials, giving room for more industrial waste. This research suggests the best possible options by critically reviewing the existing practices. While slow biological treatment schemes usually fail to support microbial activities in the presence of toxic components in concentrations, other physicochemical plans often need to meet strict waste disposal and discharge regulations. The approach where sludge disposal is thermally incinerated has never seen environmental justification, and this is because of dioxin release and obnoxious substances transferred directly. Newly emerging membrane-based schemes can be flexible, environmentally friendly, petite, economically selfsufficient, and easy to implement and maintain after installation.
Path of Science , 2022
This paper uses MATLAB, a finite element software program to compare the results of several finit... more This paper uses MATLAB, a finite element software program to compare the results of several finite analysis methods for continuous plates and check the degree of correlation with the exact values obtained by Timoshenko (1959) and Cheung (1996). The results showed little or no significant difference between plates in finite elements. Two different finite Numerical techniques are used. The Finite Strip and Exact methods and their results are compared to the results from the MATLAB program. Finite element analysis (FEA) workflow using MATLAB includes generation of meshes, geometry creation, defining physics of load, initial conditions and boundary problems, calculation, and results from visualization. FEA is a very general approach for solving Equations in science and engineering. This work offers solutions to the increasing errors associated with several other numerical methods when solving any equations of plates (сontinuous). It makes it easier to calculate and design larger structures through geometry discretization of plates and plains into more minor elements.
Path of Science , 2022
The significant treatment costs of drinking water make treated water costly, raising the price of... more The significant treatment costs of drinking water make treated water costly, raising the price of clean and helping make clean water inaccessible to the poor people in rural communities. This compels them to turn to readily available sources which are mainly contaminated. This subjects them to waterborne diseases. In this context, this study was carried out to validate the efficiency and, if feasible, the substitution of Ferric Chloride utilised in the treatment of water using Moringa Oleifera seeds, a cheap and widely accessible indigenous coagulant. The quality of water was tested on collection compared to those treated with Ferric Chloride and Moringa Seeds. Doses of 5 g, 10 g, 15 g, 20 g, 25 g and 30 g of both coagulants were used to treat 500 ml of water. Control water without Ferric Chloride and Moringa treatments was included. The pH, turbidity, conductivity and COD were measured. From the ANOVA statistical analysis, several factors such as pH were analysed, and there was a wide variation between the two treatments of Moringa and Ferric Chloride.
Path of Science
This study investigated the comparative effects of Schema-focused cognitive therapy and self-expl... more This study investigated the comparative effects of Schema-focused cognitive therapy and self-exploratory therapy on avoidant personality disorder among Secondary School Students in Imo state. The researcher asked two research questions and formulated two hypotheses to guide the study. The study adopted a quasi-experiment design. The population of the study is 98054. A purposive sampling technique was used to select 48 SSS II students for the study. The instruments for data collection are the Students avoidant personality problem identification rating scale for students and the Students avoidance personality problem checklist for the teachers. Five specialists validated the instrument. The reliability coefficient of 0.76 was obtained using Cronbach Alpha. Data were analysed using mean, standard deviation and ANCOVA F-ratio. The study's findings show that the mean rating scores on avoidant personality disorder of the participants exposed to schema-focused cognitive therapy and self-exploratory therapy in post-treatment and follow-up do not differ significantly. Based on the findings, the researchers recommend that School counsellors should use both schemas-focused cognitive therapy and self-exploratory therapy in the treatment of avoidant personality disorder since they were found to have a significant effect on the condition.
Path of Science, 2022
This study investigated the comparative effects of Schema-focused cognitive therapy and self-expl... more This study investigated the comparative effects of Schema-focused cognitive therapy and self-exploratory therapy on avoidant personality disorder among Secondary School Students in Imo state. The researcher asked two research questions and formulated two hypotheses to guide the study. The study adopted a quasi-experiment design. The population of the study is 98054. A purposive sampling technique was used to select 48 SSS II students for the study. The instruments for data collection are the Students avoidant personality problem identification rating scale for students and the Students avoidance personality problem checklist for the teachers. Five specialists validated the instrument. The reliability coefficient of 0.76 was obtained using Cronbach Alpha. Data were analysed using mean, standard deviation and ANCOVA F-ratio. The study's findings show that the mean rating scores on avoidant personality disorder of the participants exposed to schema-focused cognitive therapy and self-exploratory therapy in post-treatment and follow-up do not differ significantly. Based on the findings, the researchers recommend that School counsellors should use both schemas-focused cognitive therapy and self-exploratory therapy in the treatment of avoidant personality disorder since they were found to have a significant effect on the condition.