Papers by Bilal Ibrahim Dan-Iya
Bulletin of Environmental Science and Sustainable Management, Jul 31, 2023
JOURNAL OF ENVIRONMENTAL MICROBIOLOGY AND TOXICOLOGY, Jun 29, 2023
Journal of Environmental Bioremediation and Toxicology, Jul 30, 2023
Zn is a heavy metal often found at elevated concentrations in effluents as high as 300 ppm from t... more Zn is a heavy metal often found at elevated concentrations in effluents as high as 300 ppm from the rubber processing industry as it is used for the vulcanization of rubber. The rice milling process produces rice husk as a by-product. It is one of the most important agricultural leftovers in terms of volume. The data of the sorption isotherm of Zn (II) (CV) sorption onto rice husk ash, which was plotted using linearized plots of isothermal models were reanalyzed using isothermal models using nonlinear regression. As the datapoints were small, isotherms with parameters of only up to three were utilized to prevent overfitting. The nineteen models were
BIOREMEDIATION SCIENCE AND TECHNOLOGY RESEARCH, Jul 30, 2023
In most instances, there exists an inaccuracy in interpretation of adsorption/reduction of substa... more In most instances, there exists an inaccuracy in interpretation of adsorption/reduction of substances using linear technique as it can only provide an approximate value of the measured parameter; the specific adsorption rate. This paper provides for the first-time modelling of the effect of nZVI/BC, nZVI and Biochar (BC) on the adsorption/reduction of nitrobenzene as modelled using Pseudo-1st order (PFO), Pseudo-2nd Order (PSO), Elovich and Avrami models. Pseudo-1st Order was the best model for nZVIBCg, whereas Pseudo-2nd Order was the best model for nZVI and BC on Nitrobenzene (NB) removal based on statistical dependencies that were used such as root-mean-squire error (RMSE), bias factor (BF), Akaike information criterion (AICc) and the adjusted coefficient of determination. Justifiably from the results, coupling nZVI and BC together will help in reducing more of NB than when individual compounds are used.
JOURNAL OF ENVIRONMENTAL MICROBIOLOGY AND TOXICOLOGY, Dec 31, 2021
Because of its extensive usage in industrial applications such as leather tanning, metallurgy, el... more Because of its extensive usage in industrial applications such as leather tanning, metallurgy, electroplating, and refractory materials, chromium is one of the most dangerous trace elements introduced into surface and ground waters. The sorption isotherm of chromium sorption onto calcium alginate nanoparticles were analyzed using ten models-Henry, Langmuir, Dubinin-Radushkevich, Freundlich, BET, Toth, Sips, Fritz-Schlunder IV, Baudu and Fritz-Schlunder V, and fitted using non-linear regression. Only the Toth and Fritz-Schlunder V models were unable to fit the data. Statistical analysis based on root-mean-square error (RMSE), adjusted coefficient of determination (adjR 2), bias factor (BF), accuracy factor (AF), corrected AICc (Akaike Information Criterion), BIC and HQC showed that the Langmuir model was the best model in terms of overall best criteria. The calculated evidence ratio was 7 with an AICc probability value of 0.87 indicating that the best model was at least 7 times better than the nearest best model, which was Freundlich. The calculated Langmuir parameters qmL value of 79.174 mg/g (95% confidence interval from 50.702 to 107.646) and bL value of 0.332 L/mg (95% confidence interval from 0.294 to 0.371) is not much different from the linearized published work for the qmL value of 145 mg/g but lower than the bL value of 0.34 L/mg. The nonlinear regression method allows for the parameter values to be represented in the 95% confidence interval range which can better allow comparison with published results.
JOURNAL OF ENVIRONMENTAL MICROBIOLOGY AND TOXICOLOGY, Jul 31, 2021
The introduction of tiny amounts of heavy metals into the environment can encourage the growth of... more The introduction of tiny amounts of heavy metals into the environment can encourage the growth of a wide variety of microorganisms. The concentration at which enhanced microbial activity is seen, on the other hand, results in a significant decrease in growth rate as well as an increase in lag time (due to the higher lag time). An established link exists between heavy metal toxicity in microorganisms and the process of bioremediation, which has been well-documented. Because heavy metals have an impact on bioremediation, they must be researched, and appropriate countermeasures must be implemented. Copper reduced the growth of the SDS-degrading bacteria Enterobacter sp. strain Neni-13 to a significant extent. Under varying doses of mercury, the SDS-degrading bacteria exhibited a sigmoidal pattern with time periods ranging from 7 to 10 hours. Gompertz's model was used to calculate the growth rates of copper in different concentrations. As the copper concentration rose, the growth of bacteria was suppressed with a concentration of 1.0 g/L, with virtually total stoppage of bacterial development. From the Gompertz model, we got the estimates of growth rates; after which, they were estimated according to the Han-Levenspiel, Shukor, Wang, Liu, Andrews, and Amor models. The modified Han-Levenspiel, Andrews, Liu, and Shukor models could all successfully fit the curve. Results of the statistical analysis showed that the Han-Levenspiel model was the best model based on highest adjusted correlation coefficient (adR 2), the lowest values for RMSE and AICc, and values of AF and BF closest to unity. The parameters obtained from the Han-Levenspiel model were Ccrit 0.209 mg/L (95%, C.I., 0.199 to 0.219), µmax 0.209 h-1 (95% C.I., 0.199 to 0.219) and m 0.472 (95% C.I., 0.383 to 0.561. The results obtained in this study indicate the maximum tolerable copper concentration that the conditions for biodegradation should not exceed.
PeerJ Materials Science
Mercury is a natural, long-lasting, and bio-accumulative contaminant found in both soil and water... more Mercury is a natural, long-lasting, and bio-accumulative contaminant found in both soil and water. Mercury is toxic and its organic derivative, methylmercury (MeHg), could be lethal. The increasing level of mercury in the environment is a threat, as it can easily enter the food chain upon exposure. Zero-valent iron nanoparticle (nZVI), an environmentally friendly nanomaterial, is envisaged as an ideal candidate for the remediation of metal pollutions in soil and water bodies. Due to low toxicity and decent activity, nZVI and its corrosion products have shown huge potential for the removal of heavy metals from soil and water. It has been widely applied for the removal of heavy metals including mercury and other organic and inorganic contaminants. In this review, the current preparation methodology, characterization techniques, reductive mechanism for heavy metal removal with focus on mercury is reviewed. This review discusses the use of nZVI for the removal of mercury and demonstrate...
JOURNAL OF ENVIRONMENTAL BIOREMEDIATION AND TOXICOLOGY, 2023
Zn is a heavy metal often found at elevated concentrations in effluents as high as 300 ppm from t... more Zn is a heavy metal often found at elevated concentrations in effluents as high as 300 ppm from the rubber processing industry as it is used for the vulcanization of rubber. The rice milling process produces rice husk as a by-product. It is one of the most important agricultural leftovers in terms of volume. The data of the sorption isotherm of Zn (II) (CV) sorption onto rice husk ash, which was plotted using linearized plots of isothermal models were reanalyzed using isothermal models using nonlinear regression. As the datapoints were small, isotherms with parameters of only up to three were utilized to prevent overfitting. The nineteen models were Henry, Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Jovanovic, Redlich-Peterson, Sips, Toth, Hill, Khan, BET, Vieth-Sladek, Radke-Prausnitz, Brouers–Sotolongo, Fritz-Schlunder III, Unilan, Fowler-Guggenheim and Moreau. Statistical analysis based on error function analyses such as root-mean-square error (RMSE), adjusted coefficient of determination (adjR2), accuracy factor (AF), bias factor (BF), Bayesian Information Criterion (BIC), corrected AICc (Akaike Information Criterion), and Hannan-Quinn Criterion (HQC) showed that Freundlich, followed by Langmuir and the Jovanovic models as the best top three models. The value of the maximum monolayer adsorption capacity for Zn binding to rice husk ash according to the Langmuir’s parameter qmL was 7.33 mg g-1 (95% Confidence interval from5.464 to 9.187), while bL (L mg-1), the Langmuir model constants was 0.011 L mg-1 (95% C.I. from 0.030 to 0.182). As the Freundlich equation is unable to model the maximum adsorption, the Halsey rearrangement of the Freundlich equation was utilized and gave the estimated maximum absorption of 7.20 mg g-1, which is very close to the experimental value. The constant values obtained in this study, especially the Langmuir model are largely different from the previously reported linearized approach.
Bioremediation Science and Technology Research, 2023
The rice milling process produces rice husk as a by-product. It is one of the most important agri... more The rice milling process produces rice husk as a by-product. It is one of the most important agricultural leftovers in terms of volume. The data of the sorption isotherm of Hg (II) (CV) sorption onto rice husk ash, which was plotted using linearized plots of isothermal models were reanalyzed using isothermal models using nonlinear regression. As the datapoints were small, nineteen isotherm models with parameters of only up to three were utilized to prevent overfitting. The models were Henry, Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Jovanovic, Redlich-Peterson, Sips, Toth, Hill, Khan, BET, Vieth-Sladek, Radke-Prausnitz, Brouers–Sotolongo, Fritz-Schlunder III, Unilan, Fowler-Guggenheim and Moreau. Statistical analysis based on error function analyses such as root-mean-square error (RMSE), adjusted coefficient of determination (adjR2), accuracy factor (AF), bias factor (BF), Bayesian Information Criterion (BIC), corrected AICc (Akaike Information Criterion), and Hannan-Quinn Criterion (HQC) showed that Freundlich model was the best model. The value of the maximum monolayer adsorption capacity for Hg binding to rice husk ash according to the Langmuir’s parameter qmL was 3.998 mg g-1 (95% Confidence interval from 2.473 to 5.523), while bL (L mg-1), the Langmuir model constants was 0.067 L mg-1 (95% C.I. from 0.001 to 0.134). The Freundlich model is unable to forecast the maximal adsorption capacity. The Halsey rearrangement of the Freundlich equation gave the estimated maximum absorption of 3.39 mg g-1, which is very close to the experimental value. The nonlinear regression method provides parameter values within the 95% confidence interval, facilitating improved comparability with prior research.
PeerJ Materials Science, 2023
Mercury is a natural, long-lasting, and bio-accumulative contaminant found in both soil and water... more Mercury is a natural, long-lasting, and bio-accumulative contaminant found in both soil and water. Mercury is toxic and its organic derivative, methylmercury (MeHg), could be lethal. The increasing level of mercury in the environment is a threat, as it can easily enter the food chain upon exposure. Zero-valent iron nanoparticle (nZVI), an environmentally friendly nanomaterial, is envisaged as an ideal candidate for the remediation of metal pollutions in soil and water bodies. Due to low toxicity and decent activity, nZVI and its corrosion products have shown huge potential for the removal of heavy metals from soil and water. It has been widely applied for the removal of heavy metals including mercury and other organic and inorganic contaminants. In this review, the current preparation methodology, characterization techniques, reductive mechanism for heavy metal removal with focus on mercury is reviewed. This review discusses the use of nZVI for the removal of mercury and demonstrates that nZVI possesses high reactivities for mercury removal and have great application prospects in environmental remediation. Some recommendations are proposed and conclusions drawn for future research.
Journal of Biochemistry, Microbiology and Biotechnology
Pesticides Pollutants are a major ecological issue because they kill organisms that are not their... more Pesticides Pollutants are a major ecological issue because they kill organisms that are not their intended targets. Even in trace amounts, their diversity, toxicity, and durability are harmful to natural systems. High levels of malathion in the air, water, or food can make breathing difficult, tighten the chest, cause nausea, cramps, diarrhoea, watery eyes, impaired vision, salivation, perspiration, headaches, and even cause death. Two kinetic models—pseudo-1st- and pseudo-2nd order were used to examine the sorption isotherm of malathion onto Bacillus sp. S14, and they were fitted using non-linear regression. The pseudo-1st order model was found to be the best model by statistical analysis based on root-mean-square error (RMSE), adjusted coefficient of determination (adjR2), bias factor (BF), accuracy factor (AF), corrected AICc (Akaike Information Criterion), Bayesian information criterion (BIC), and Hannan-Quinn information criterion (HQC). A kinetic study employing the pseudo-1st...
Bioremediation Science and Technology Research
The formulation of hypotheses and the recommendation of experiments as the subsequent stages of t... more The formulation of hypotheses and the recommendation of experiments as the subsequent stages of the research process are both brought about as a result of the utilization of complicated computer models that make it possible to represent intricate biological processes. Because these systems rely on random data, this is a necessity for all parametric statistical assessment procedures. When the diagnostic tests reveal that the residuals make up a pattern, there are a few different treatment choices available to choose from. Two of these alternatives include running a nonparametric analysis or switching to a new model. In this study, we use the Wald-Wolfowitz runs test as a statistical diagnosis tool to determine whether or not the randomization conditions have been met. The runs test found that there were 5 total runs, although the randomness assumption predicted 7.46 runs. The null hypothesis is not rejected since the p-value is greater than 0.05; this suggests that there is no convin...
Bioremediation Science and Technology Research
Azo dyes, like Remazol Black B, form covalent bonds with textile fibers like cotton, setting them... more Azo dyes, like Remazol Black B, form covalent bonds with textile fibers like cotton, setting them apart from traditional dyes. Due to their advantageous qualities of vivid color, water resistance, straightforward application processes, and low energy consumption, they are widely used in the textile industry. Major environmental effects of their discharge into receiving streams include reduced photosynthesis in aquatic life as a result of decreased light penetration. Seven isotherm models—Henry, Langmuir, Freundlich, BET, Toth, Fritz-Schlunder IV, and Fritz-Schlunder V—were used to analyze the biosorption isotherm data of Remazol Black B dye biosorption by Aspergillus flavus and were fitted using non-linear regression. Based on statistical analysis, the Fritz-Schlunder IV was determined to be the best model using root-mean-square error (RMSE), adjusted coefficient of determination (adjR2), bias factor (BF), accuracy factor (AF), corrected AICc (Akaike Information Criterion), Bayesian...
Journal of Environmental Microbiology and Toxicology, 2020
The used of linearization technique using natural logarithm transformation, though standard, is e... more The used of linearization technique using natural logarithm transformation, though standard, is erroneous and can just give an estimated value for the sole parameter measured; the specific growth rate. in this paper, for the first time we model the effect of nZVI/Pd and SiO2-nZVI/Pd nanoparticles on the growth of P. putida in MSM medium as modelled using models such as von Bertalanffy, Baranyi-Roberts, modified Schnute, modified Richards, modified Gompertz, modified logistics and the most recent Huang. The results show that the lag phases of P. putida cell at 4 h (0.5 g L-1 of SiO2-nZVI/Pd), 7.655 h (1.0 g L-1 of SiO2-nZVI/Pd), 11.76 h (0.5 g L-1 of nZVI/Pd) and 22.03 h (1.0 g L-1 of nZVI/Pd) respectively, which were longer than that of control, indicating the nanoparticles prolonged the exponential phase of cell growth. Moreover, in comparing the maximum growth ymax, which was 1.23x109, there was a decrease in the P. putida growth, i.e 1.20x109 (0.5 g L-1 of SiO2-nZVI/Pd), 1.06x109...
Journal of Environmental Microbiology and Toxicology, 2020
In this paper, we present different growth models such as Von Bertalanffy, Baranyi-Roberts, Morga... more In this paper, we present different growth models such as Von Bertalanffy, Baranyi-Roberts, Morgan-Mercer-Flodin (MMF), modified Richards, modified Gompertz, modified Logistics and Huang in fitting and analyzing the epidemic trend of COVID-19 in the form of total number of death cases of SARS-COV-2 in The United States as of 20th of July 2020. The MMF model was found to be the best model with the highest adjusted R2 value with the lowest RMSE value. The accuracy and bias factors values were close to unity (1.0). The parameters obtained from the MMF model include maximum growth of death rate (log) of 0.048 (95% ci from 0.047 to 0.048), curve constant (d) that affects the inflection point of 2.34 (95% ci from 2.31 to 2.38) and maximal total number of death (ymax) of 151,356 (95% ci from 147,911 to 154,525). The MMF predicted that the total number of death cases for The United States on the coming 20th of August and 20th of September 2020 will be 148,183 (95% ci of 149,199 to 147,173)...
Enterprise Information System, 2022
Questions
1. Explain in your own words the capabilities of the SIMATIC IT Preactor software (c... more Questions
1. Explain in your own words the capabilities of the SIMATIC IT Preactor software (check the PDF file “Siemens-PLM-Whats-new-in-SIMATIC-IT-Preactor-APS-2016-fs-61893-A8.pdf” as found attached below the brief. Have there been any success stories of companies using it? Are there similar products from competitors and how do these compare as far as capabilities are concerned?
2. Give an overview of E-commerce, M-commerce, and E-business. Discuss how companies that work using the E-business model can obtain a competitive advantage in relation to traditional businesses. Explain how traditional companies can implement the E-business model while keeping their traditional status. Also discuss how a traditional business can fully convert to an E-Business (dropping its traditional status). Analyze the benefits of E-commerce for the customers of such business.
3. Read the case study for Assignment 2 and answer the following:
a. What were the concerns of the New York City cabbies over the new use of the new system? Were their concerns justified and why or why not?
b. If you were the manager of the New York City's Taxi & Limousine Commission, what would you have done to create a smoother transition to the new system?
c. Many cabbies expressed the opinion that the technology being installed in their cabs was inevitable, no matter what their opinion. Do you agree with this assessment? Why or why not?
d. As a customer of a cab service, would you appreciate the benefits provided by the new system in New York City? Would it help provide you with a favourable view of the city in general? List the benefits and provide your view of each.
Enterprise Information System, 2022
Questions
1. Explain the differences and focus of MIS systems and KMS systems. Research online, ... more Questions
1. Explain the differences and focus of MIS systems and KMS systems. Research online, present a specific company that most benefits from each type of system, analyze how each company uses the system and explain the benefits that each system provides for the specific company.
2. Based on the theory presented in the course and other research on IS, present an outline of an MIS solution for a medium to large company that offers either products or services to its clients. Consider the organizational strategy, the functionalities, and the applications.
3. Apply Porter’s competitive forces model in a bank. Make recommendations on how current IS, online collaboration, Web 2.0, Social Networks, and the increasing popularity of mobile devices could benefit the bank and its customers. In your analysis have a separate section that discusses the security implications of the above technologies for the bank and for the customers of the bank.
Entrepreneurship and SMEs, 2022
“You are required to write a business plan which will provide direction and increase the probabil... more “You are required to write a business plan which will provide direction and increase the probability for success of a business idea within the today contemporary and very competitive market”
Entrepreneurship and SMEs, 2022
“In the heart of London’s city centre, the popular SpiceSky restaurant prides itself on the quali... more “In the heart of London’s city centre, the popular SpiceSky restaurant prides itself on the quality and range of its Indian food since 1988. The restaurant has been recording a yearly increase in sales since its grand opening more than two decades earlier. The restaurant owner Ali Mahal, nevertheless, has invited your company to offer solutions to a gradual decline in sales that has been recorded the last 12 months. More specifically, Ali explained that sales, which have grown every year since he opened the restaurant, have actually dropped over the last twelve months. Yet, London’s central restaurants, as well as the town’s city centre have continued to prosper.
Moreover, to get a full picture, you have decided to visit the restaurant and investigate first-hand the experience of dining in SpiceSky”
Uploads
Papers by Bilal Ibrahim Dan-Iya
1. Explain in your own words the capabilities of the SIMATIC IT Preactor software (check the PDF file “Siemens-PLM-Whats-new-in-SIMATIC-IT-Preactor-APS-2016-fs-61893-A8.pdf” as found attached below the brief. Have there been any success stories of companies using it? Are there similar products from competitors and how do these compare as far as capabilities are concerned?
2. Give an overview of E-commerce, M-commerce, and E-business. Discuss how companies that work using the E-business model can obtain a competitive advantage in relation to traditional businesses. Explain how traditional companies can implement the E-business model while keeping their traditional status. Also discuss how a traditional business can fully convert to an E-Business (dropping its traditional status). Analyze the benefits of E-commerce for the customers of such business.
3. Read the case study for Assignment 2 and answer the following:
a. What were the concerns of the New York City cabbies over the new use of the new system? Were their concerns justified and why or why not?
b. If you were the manager of the New York City's Taxi & Limousine Commission, what would you have done to create a smoother transition to the new system?
c. Many cabbies expressed the opinion that the technology being installed in their cabs was inevitable, no matter what their opinion. Do you agree with this assessment? Why or why not?
d. As a customer of a cab service, would you appreciate the benefits provided by the new system in New York City? Would it help provide you with a favourable view of the city in general? List the benefits and provide your view of each.
1. Explain the differences and focus of MIS systems and KMS systems. Research online, present a specific company that most benefits from each type of system, analyze how each company uses the system and explain the benefits that each system provides for the specific company.
2. Based on the theory presented in the course and other research on IS, present an outline of an MIS solution for a medium to large company that offers either products or services to its clients. Consider the organizational strategy, the functionalities, and the applications.
3. Apply Porter’s competitive forces model in a bank. Make recommendations on how current IS, online collaboration, Web 2.0, Social Networks, and the increasing popularity of mobile devices could benefit the bank and its customers. In your analysis have a separate section that discusses the security implications of the above technologies for the bank and for the customers of the bank.
Moreover, to get a full picture, you have decided to visit the restaurant and investigate first-hand the experience of dining in SpiceSky”
1. Explain in your own words the capabilities of the SIMATIC IT Preactor software (check the PDF file “Siemens-PLM-Whats-new-in-SIMATIC-IT-Preactor-APS-2016-fs-61893-A8.pdf” as found attached below the brief. Have there been any success stories of companies using it? Are there similar products from competitors and how do these compare as far as capabilities are concerned?
2. Give an overview of E-commerce, M-commerce, and E-business. Discuss how companies that work using the E-business model can obtain a competitive advantage in relation to traditional businesses. Explain how traditional companies can implement the E-business model while keeping their traditional status. Also discuss how a traditional business can fully convert to an E-Business (dropping its traditional status). Analyze the benefits of E-commerce for the customers of such business.
3. Read the case study for Assignment 2 and answer the following:
a. What were the concerns of the New York City cabbies over the new use of the new system? Were their concerns justified and why or why not?
b. If you were the manager of the New York City's Taxi & Limousine Commission, what would you have done to create a smoother transition to the new system?
c. Many cabbies expressed the opinion that the technology being installed in their cabs was inevitable, no matter what their opinion. Do you agree with this assessment? Why or why not?
d. As a customer of a cab service, would you appreciate the benefits provided by the new system in New York City? Would it help provide you with a favourable view of the city in general? List the benefits and provide your view of each.
1. Explain the differences and focus of MIS systems and KMS systems. Research online, present a specific company that most benefits from each type of system, analyze how each company uses the system and explain the benefits that each system provides for the specific company.
2. Based on the theory presented in the course and other research on IS, present an outline of an MIS solution for a medium to large company that offers either products or services to its clients. Consider the organizational strategy, the functionalities, and the applications.
3. Apply Porter’s competitive forces model in a bank. Make recommendations on how current IS, online collaboration, Web 2.0, Social Networks, and the increasing popularity of mobile devices could benefit the bank and its customers. In your analysis have a separate section that discusses the security implications of the above technologies for the bank and for the customers of the bank.
Moreover, to get a full picture, you have decided to visit the restaurant and investigate first-hand the experience of dining in SpiceSky”