23 publications
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Overview of Influence of Biomass Pretreatment: Hydrolyzed vs Unhydrolyzed on BioH2 YieldBy Ukpaka Chukwuemeka Peter, Ikpe Otor Metthew, Victor Chukwuemeka Ukpaka, Joy Chukwuemeka Peter Ukpaka, Abraham Peter Ukpaka
Abstract: Infact, overview on the potential of the hydrolyzed and unhydrolyzed biodigester system to produce biohydrogen (BioH2) gas using wood saw dust material obtained from Nigeria was examined with respect to the influence of the biomass build-up as well as related to the pretreatment property. The production of hydrogen gas was influenced by the pH and particle size of the wood saw dust and both the hydrolyzed and unhydrolyzed biodigester yielded …
Published in International Journal of Chemical Engineering and Processing · Vol. 12, Issue 2, 2026 · pp. 10–19 Read article →
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Evaluation of Kinetic Parameters of Total PetroleumHydrocarbon Degradation Using Grape Leaf as Nutrientto Catalyze the ReactionBy Ukpaka Chukwuemeka Peter, Chie Amadi Grace Orluma, Victor Chukwuemeka Ukpaka, Joy Chukwuemeka Peter Ukpaka, Abraham Peter Ukpaka
Abstract: The outcomes of the research are to determine and evaluate the kinetic parameters of total petroleum hydrocarbon degradation using grape leaf as nutrient to catalyze the reaction. The application of the Michaelis–Menten model equation in combination with the Lineweaver–Burk Plot theoretical conceptual techniques was adopted in handling the computation of the functional parameters and coefficients of the system. The impact of bio-remediant dosage was monitored, and the kinetic parameters were …
Published in International Journal of Chemical Engineering and Processing · Vol. 12, Issue 2, 2026 · pp. 1–9 Read article →
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Investigation on the Comparison of the Physical Properties of Stimulants for Petroleum Hydrocarbon Remediation in SoilBy Ukpaka Chukwuemeka Peter, Samuel Nkanata Philip, Victor Chukwuemeka Ukpaka, Joy Chukwuemeka Peter Ukpaka, Abraham Peter Ukpaka
Abstract: Crude oil pollution is a major environmental concern that can cause significant damage to soil ecosystems. Bioremediation, a natural process in which microorganisms degrade pollutants, has emerged as a promising approach for the remediation of crude oil-contaminated soil. Grape leaf powder (Vitis Vinifera), a readily available and inexpensive organic material, has been shown to stimulate microbial activity and enhance bioremediation. This study investigated the effectiveness of grape leaf powder as …
Published in International Journal of Environmental Chemistry · Vol. 12, Issue 1, 2026 · pp. 53–68 Read article →
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Heat Generated Simulation with Bacteria and Fungi inCrude Oil Remediation in an Aerated LagoonBy Ukpaka Chukwuemeka Peter, Victor Chukwuemeka Ukpaka, Joy Chukwuemeka Peter Ukpaka, Abraham Peter Ukpaka, Obinuchi Wali
Abstract: Studies on the heat generated by bacteria and fungi in an aerated lagoon were monitored by theapplication of MATLAB computed software simulation. Mathematical models were developed in termsof substrate utilization by microbes and correlated with the Monod’s equation model which revealedthe trend of heat generated at different operating temperature of 15°C, 30°C, 45°C, 60°C, 75°C, 90°C,105°C and 120°C. The heat generated varies with increase in the microbial concentration as favoredby …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 12, Issue 1, 2026 · pp. 27–45 Read article →
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Total Petroleum Hydrocarbon Degradation with the Action of Bio-stimulant using NPK FertilizerBy Victor Chukwuemeka Ukpaka, Joy Chukwuemeka Peter Ukpaka, Abraham Peter Ukpaka, Ukpaka Chukwuemeka Peter
Abstract: The total petroleum hydrocarbon degradation with the action of bio-stimulant using NPK fertilizer was monitored with respect to different concentration of dosages. The nature of the curve in relationship to the establishment of the equation of the line as well as the square root of the best of each line or curve was considered. The application of this concept enhanced the determination of the kinetic values of each bioreactor process, …
Published in International Journal of Green Chemistry · Vol. 12, Issue 1, 2026 · pp. 26–33 Read article →
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Crude Oil Degradation on the Influence of Palm oil-Fermented Wastewater Used as BiostimulantBy Joy Chukwuemeka Peter Ukpaka, Abraham Peter Ukpaka, Victor Chukwuemeka Ukpaka, Ukpaka Chukwuemeka Peter
Abstract: *Author for CorrespondenceUkpaka Chukwuemeka Peter E-mail: [email protected] The total petroleum hydrocarbon (TPH) degradation was monitored in a batch reactor with the addition of biostimulants like palm oil processed wastewater (POPWW) acting as nutrients, to effectively enhance high efficiency in contaminants remediation in clay soil. The kinetic components were evaluated in terms of specific rates of petroleum hydrocarbon degradation, maximum specific rate of total petroleum hydrocarbon degradation as well as the …
Published in International Journal of Chemical Separation Technology · Vol. 12, Issue 1, 2026 · pp. 47–60 Read article →
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Evaluation of Kinetic Parameters of Crude Oil Remediation Using Bio-Stimuant of Mint Leaf (Mentha piperita)By Abraham Peter Ukpaka, Victor Chukwuemeka Ukpaka, Joy Chukwuemeka Peter Ukpaka, Ukpaka Chukwuemeka Peter
Abstract: Kinetic parameters of crude oil degradation as related to total petroleum hydrocarbon (TPH) were evaluated. The experiment was set-up using crude oil, loamy soil polluted and addition of bio-stimulant (nutrient based substance). The depletion of the pollutant was monitored within the contact time of 7 to 35 days. At intervals of 7 days samples were collected and analyzed to determine the TPH concentration at each bioreactor set-up, through subjecting the …
Published in International Journal of Chemical Engineering and Processing · Vol. 12, Issue 1, 2026 · pp. 62–71 Read article →
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Investigation of the Physical and Chemical Properties of Different Species of OnionBy C. P. Ukpaka, Victor Chukwuemeka Ukpaka, Abraham Peter Ukpaka, Joy Chukwuemeka Peter Ukpaka
Abstract: An investigation on the physical and chemical properties of white, red, and brown onions was carried out to assess the potential applications of the different species sampled in this study. The physical properties monitored include refractive index, viscosity, and density. For red onion, the refractive index, viscosity, and density were measured as 1.35322, 1.631 cSt, and 1.1140 g/cm³, respectively. Brown onion exhibited values of 1.3571, 3.045 cSt, and 1.1130 g/cm³, …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 11, Issue 2, 2026 · pp. 1–15 Read article →
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Bio-stimulation with Fresh Avocado Seed for Crude Oil Remediation: Experimental and Bio-kinetic ModellingBy Joy Chukwuemeka Peter Ukpaka, Victor Chukwuemeka Ukpaka, Abraham Peter Ukpaka, Ukpaka Chukwuemeka Peter
Abstract: The remediation of crude oil-contaminated soils requires sustainable and cost-effective solutions. This study investigates the performance of fresh avocado seed (Persea americana) as a biostimulant for the remediation of Bonny Light crude oil-contaminated soil from the Kalarugbana community, Niger Delta. A 56-day laboratory-scale experiment was conducted using bioreactors containing 1 kg of soil contaminated with 100 ml of crude oil and treated with different volumes of fresh avocado seed slurry …
Published in International Journal of Environmental Chemistry · Vol. 11, Issue 2, 2025 · pp. 68–76 Read article →
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Investigation of the Physical and Chemical Properties of Different Species of OnionBy Joy Chukwuemeka Peter Ukpaka, Victor Chukwuemeka Ukpaka, Abraham Peter Ukpaka, C. P. Ukpaka
Abstract: An investigation on the physical and chemical properties of white, red, and brown onions was carried out to assess the potential applications of the different species sampled in this study. The physical properties monitored include refractive index, viscosity, and density. For red onion, the refractive index, viscosity, and density were measured as 1.35322, 1.631 cSt, and 1.1140 g/cm³, respectively. Brown onion exhibited values of 1.3571, 3.045 cSt, and 1.1130 g/cm³, …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 11, Issue 2, 2026 · pp. 1–15 Read article →
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The Potential of Petroleum Hydrocarbon Degradation in Loamy Soil Environment using Mint Leaf (Mentha Piperita)By Victor Chukwuemeka Ukpaka, Joy Chukwuemeka Peter Ukpaka, Abraham Peter Ukpaka, Ukpaka Chukwuemeka Peter
Abstract: The investigation on the impact of locally sourced raw materials potential to enhanced remediation of crude oil contaminated soil environment using mint leaf (Mentha piperita) in powdered form was studied. experimental studies were conducted to examine the potential performance of both sun dried and room dried of the biostimulant used for the oil. The physicochemical properties of the crude oil, mint leaf in powder form and soil was determined as …
Published in International Journal of Environmental Chemistry · Vol. 11, Issue 2, 2025 · pp. 77–78 Read article →
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Brown Onion Oil Characteristics of Medicinal Integrity byLooking at the Extraction Operating ConditionsBy Joy Chukwuemeka Peter Ukpaka, Tinuola H. Udoh, Victor Chukwuemeka Ukpaka
Abstract: New forms of disease are increasingly affecting people living in today’s highly pressure environment, and these diseases are less responsive to conventional treatments. Aromatic plants and species are used for thousands of years for many purposes, such as medicine, perfumes and cosmetics, as well as in the food industry for culinary and medicinal uses. The brown onion shows the following physic and chemical properties as determined experimentally as Refractive index …
Published in International Journal of Chemical Separation Technology · Vol. 11, Issue 2, 2025 · pp. 41–51 Read article →
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Integrated Process Design and Simulation of Amine-Based CO₂ Capture: A Path to Emission ControlBy Abraham Peter Ukpaka, Victor Chukwuemeka Ukpaka, Joy Chukwuemeka Peter Ukpaka, C. P. Ukpaka
Abstract: The flow sheet must represent the complete process in detail taking care of all process equipment. ASPEN HYSYS simulation software was used to simulate the process, the models of the process was simulated using MATLAB. The concentration of the atmospheric CO 2 was found to having been increasing steadily and has risen up to 35% since the Industrial Revolution. This rate, at which the concentration of CO 2 is increasing, …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 11, Issue 2, 2025 Read article →
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Conceptual Design and Model Approach of an Amine Based on CO 2 CaptureBy Victor Chukwuemeka Ukpaka, Abraham Peter Ukpaka, C. P. Ukpaka
Abstract: The research work on the conceptual design and model approach of an amine base CO 2 capture, Fluegases are conveyed through the absorber, where carbon dioxide is chemically absorbed using anaqueous monoethanolamine (MEA) solution that is delivered to the column at its top. Due to theincreased contact area between the phases, both phases travel through the packed bed where most of the chemical reaction occurs. Before entering the stripper, where …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 11, Issue 2, 2025 · pp. 1–29 Read article →
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Study of Electrical Polarization of Some Elements:The Effect of DisplacementBy Victor Chukwuemeka Ukpaka, Abraham Peter Ukpaka, C. P. Ukpaka
Abstract: Electrical polarization is an essential phenomenon for material science, portraying the response of a material to the external electric field. This conceptual review has provided a model-based approach to understanding electrical polarization, The following elements as stated considered in this research, such as potassium (K), magnesium (Mg), scandium (Sc), titanium (Ti), vanadium (V) and chromium (Cr). Monitoring electrical polarization is the goal of this study. The electrical polarization model is …
Published in International Journal of Energetic Materials · Vol. 11, Issue 1, 2025 · pp. 12–21 Read article →
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The Potential Effect of Mass Variation on the Efficiency of the Single Electron System of Group II ElementsBy Abraham Peter Ukpaka, C. P. Ukpaka, Victor Chukwuemeka Ukpaka
Abstract: This study explores the efficiency, interactions, and dynamics of single-electron systems in the group II family of alkaline earth metals. The efficiency of these systems is assessed by analyzing their energy levels, with beryllium demonstrating the highest efficiency at 3.6 e-22 due to its low atomic mass and favorable energy transitions. The isotopic distribution patterns for these elements reveal how variations in neutron numbers influence their nuclear stability and electronic …
Published in International Journal of Chemical Separation Technology · Vol. 10, Issue 2, 2024 · pp. 1–17 Read article →
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Evaluation of the Potential of Fused Silica Material: The Relationship of Temperature, Frequency, and PolarizationBy Victor Chukwuemeka Ukpaka, Abraham Peter Ukpaka, C. P. Ukpaka
Abstract: Fused silica, a high-purity form of silicon dioxide, is widely recognized for its exceptional thermal stability, optical transparency, and low dielectric loss. This study evaluates the potential of fused silica as a material in advanced optical, electronic, and photonic applications by exploring its properties in relation to temperature, frequency, and polarization. Through a comprehensive analysis, we examine the temperature-dependent changes in its thermal and optical properties, including thermal expansion, refractive …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article →
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Computation of Compressor Components Failure and Maintenance CharacteristicsBy C. P. Ukpaka, Victor Chukwuemeka Ukpaka, Abraham Peter Ukpaka
Abstract: The computation of the compressor components failure and maintenance characteristics as related to the major parts are described in this research. The research projected the root cause of the compressor components failure as well as projected the necessary measure to reduce such occurrence in the gas compressor operation. The parameters of the Mean time between failure, failure rate, downtime maintenance, reliability, unreliability, and availability were commutated respect to the number …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article →
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Investigation on the Characteristics of Chromolaena Odorata (Awolowo leaf) in Petroleum Hydrocarbon Degradation in Loamy Soil EnvironmentBy Obinna Isaac Ikechi, Victor Chukwuemeka Ukpaka
Abstract: The application of Chromolaena odorata (Awolowo leaf), processed into powder form, was used as a biostimulant for petroleum hydrocarbon degradation and mitigation in a loamy soil environment. In this investigation, the physicochemical and microbial characteristics of the sample were determined, as presented in this research, including pH, electrical conductivity (EC), total nitrogen (T.N), total phosphorus (T.P), potassium (K), total organic carbon, and P. fluorescence. Corynebacterium sp., Arthrobacter, Bacillus, Acinetobacter iwoffi, …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 1, 2024 · pp. 13–23 Read article →
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Monitoring of the Physicochemical Properties of Some Important Parameters That Induce Metal Corrosion in Water MediumBy Abraham Peter Ukpaka, C. P. Ukpaka, Victor Chukwuemeka Ukpaka, Joy Chukwuemeka Peter Ukpaka
Abstract: This investigation addresses the effect of freshwater quality on metal corrosion in Choba river located in Obio/Akpo Local Government Area of Rivers State of Nigeria. The research involves the use of four different metal coupons namely Carbon Steel (CBS-D), Mild Steel (MS-B), Stainless Steel (SST-C), and Copper Steel (CPS-A). The different metal coupons were immersed in the freshwater medium and the freshwater medium is contaminated with industrial activities. The rate …
Published in International Journal of Metallurgy and Alloys · Vol. 10, Issue 2, 2024 · pp. 24–36 Read article →