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Introduction
CHUKWUEMEKA PETER UKPAKA was born in Obite town, Ogba/Egbema/Ndoni Local Government Area of Rivers State, Nigeria. I was born on the 24th December 1969. He had his Bachelor of Technology Degree in Chemical/Petrochemical Engineering from Rivers State University of Science and Technology Port Harcourt, Nigeria in 2000; Master of Technology in Chemical Engineering in a specializer field of Biochemical and Environment Engineering – Remediation Technology from the Rivers State University of Science
Current institution
Additional affiliations
October 2018 - present
Position
- Professor
Description
- I am a Professor of Chemical and Petrochemical Engineering as well as a researcher, teacher, administrator etc
April 2001 - May 2020
October 2018 - October 2018
Position
- Professor (Full)
Description
- I am currently a Professor in Chemical Engineering, through my research output has shown that I am a versatile researcher and has contributed reasonably to knowledge.
Education
April 2005 - September 2009
Publications
Publications (152)
The paper discussed the use of Neem extract to remediate crude oil polluted soil.
Kinetic parameters of metal inhibition in acidic medium in the presence of water-based plant extracts to monitor corrosion rate characteristics was investigated in this research. The two water-based plasts used are pnematopteris pennigera (GF) and selaginella myosurus (SM) and the mild steel was immersed into the extracts and 1.0M of hydrochloride...
Produced water was treated to Nigerian Federal Environmental Protection Agency (FEPA) discharge limits using the concept of substrate limiting thermophilic anaerobic digestion with physical adsorption. The percentages of pollutants removed from the produced water shows that the treatment efficiency was approximately 100 % and the percentage error a...
This research work examined pressure relief valve (PRV) failures by using statistical analysis of proof test data obtained from the computerized maintenance management system (CMMS) of Liquefied Natural Gas (LNG) facilities site. This study comparatively investigated the 30 months approved inspection interval for the proof test of PRVs by the Depar...
The application of mathematical model for the prediction of kinetics of microbial decay was developed and simulated with variation in time. The result obtained demonstrates increase in the microbial decline in concentration revealing high depletion in substrate concentration as well as the available nutrient in the system. The functional parameters...
This research showcases the investigation on the characteristics of oil from Cocos nucifera. The weight of the freshly harvested mature coconut was examined for the various species sampled, quantity of coconut meat, shell and water as well as weight in terms of drying period, moisture concentration in the produced oil determined. The approach of ex...
The importance of fertilizers cannot be underscored owing to their positive impacts on plants, environment and human health. However, the use of growth and yield enhancers such as NPK fertilizer have been intensively discouraged as the effects on the environment and human health have been devastating. However, the global awareness of the hazardous...
This investigation involves the development of model to predict the non-competitive inhibition of petroleum hydrocarbon degradation. The result of the model shows the relation between the substrates concentration (hydrocarbon) with time. It was observed that at a very small rate the substrate decrease upon the act of the inhibitor. The non-inhibito...
The production of biodiesel using fluted pumpkin oil was considered in this research work. The fluted pumpkin was converted fluted pumpkin oil methylester known as biodiesel. The stem of the fluted pumpkin is used to produce biodiesel. Biodiesel is produced in a combined microbial/chemical process. Functional parameters checked and evaluated for th...
A Fed-Batch Bio-reactor volume changes as the industrial wastes (feed) is put into the reactor. This change in volume is a function of time and is equal to the rate at which the wastes is fed into the reactor. The reactor has to be filled to this volume before the outlet valve could be opened. The volume of the bio-reactor is therefore the volume o...
Research work was conducted to investigate the suitability of dye extracted
from softwood sawdust ash for soap production. The physicochemical
properties of the dye obtained as the final raw material for the production of
liquid and solid bar soap was examined in terms of pH, density, viscosity and
water content with value of 5.5, 1.00kg/
, 2....
The research focussed on the need to preserve starch for the manufacture of adhesives particularly for regions were sunlight or drying facility is either not readily available or very uneconomical. Two key parameters were investigated during preservation, the viscosity and the microbial formation. The method involved the local extraction of two (2)...
Research work was conducted to investigate the suitability of lye extracted from softwood sawdust ash for soap production. The physicochemical properties of the dye obtained as the final raw material for the production of liquid and solid bar soap was examined in terms of pH, density, viscosity and water content with value of 5.5, 1.00kg/m³, 2.650c...
Mathematical model was developed and evaluated to monitor and predict the groundwater characteristics of Trans-amadi region in Port Harcourt City. In this research three major components were considered such as chloride, total iron and nitrate concentration as well as the polynomial expression on the behavious on the concentration of each component...
Research work was conducted on Moringa oleifera for oil extraction with the aid of n-hexane as basis for solvent extraction and water for steam extraction. The result obtained reveals that n-hexane solvent extraction yielded optimal volume when compared with the steam extraction. The product obtained from steam extraction has less fatty acid than t...
This paper presented the evaluation of crude oil degradation in fresh water contaminated site. Experimental analysis was conducted to determine the Bonny light crude oil degradation and the physiochemical properties of contaminated site. Samples were collected from Orashi river in Niger Delta area of Nigeria at a depth of 0.6m. Experimental analysi...
Degradation of Crude oil in different soils environment was monitored using two different species of plant extract namely moringa and Neem roots. Four different types of soil was investigation namely loamy, sandy, clay and silt soil all obtained from Niger Delta area of Nigeria as well as the Moringa and Neem roots including the alcohol and water m...
The aim of this study was to carry out the reliability analysis of Asphalt Plant components of bearing and hot conveyor in a Construction Company located in Port Harcourt as a case study. The reliability analysis research work carried out on asphalt plant failure components for a period of five years from January 2014 to December 2018. The type of...
Research was conducted to study the low in production capacity of an Asphalt plant located in Port Harcourt City of Rivers State in Nigeria. In this study two major components was identified and isolated, which was classified as fan belt and electric motor. The failure of these components increases as the asphalt plant service time and utilization...
Model was developed for the prediction of polarization characteristics in a dielectric material exhibiting piezoelectricity and electrostriction based on mathematical equations and MATLAB computer simulation software. The model was developed based on equations of polarization and piezoelectric constitutive law and the functional coefficient of Lead...
In this paper, Investigation was conducted to ascertain the impact of crude oil contamination on maize growth in humus soil environment. The research covers experimental analysis and physical measurement of maize growth rule The physicochemical parameters of the crude oil and humus soil were measured and their result recorded Different species of m...
Investigation was conducted to examine the portability of some Ogoni Rivers located in Rivers State for economic utilization. The physicochemical parameters of the River water was measured and the results obtained recorded as shown in the research work presented in this paper. River water from station 1 obtained from Kpor Community (Muor River), st...
A mathematical model was developed to examine the effect of angular momentum of an electron in an Orbital. The Lamor procession and vector of angular momentum function of the S,P orbitals revealed an increase in the angular momentum with an increase in the orbital. The trend on spd orbital in terms of angular momentum shows the same behaviours as w...
This research adopts the use of first order reliability method (FORM) in managing a waste management system. Questionnaires were distributed to waste management contractors, individuals, residents, schools, corporate bodies, and institutions, companies and industries. Within the questionnaires retrieved, waste generation data of selected zones were...
The control of corrosion of metal and its alloy dissolution in environments that induce corrosion has been reviewed showing successes recorded in the search for alternative inhibitors that would replace toxic and expensive inhibitors that in some instances require rigorous process of synthesis. Studies show that organic compounds, drugs, polymers a...
Corrosion inhibition effect of cold water extract of Theobroma cacao pods-Cocoa pod (TCP-CP) on mild steel corrosion in 1 M HCl base stock solution has been studied. The study was conducted using weight loss measurement narrowed down to the effect of immersion time, inhibitor concentration and temperature on the corrosion behavior of mild steel in...
Investigation was conducted in some communities of Cross Rivers State to experimentally examine the effect of soil characteristics on metal corrosion in different soil environment of clay, swampy and sandy. Soil samples were collected from the following zones located in Cross Rivers State Ejajam, Yala and Ikot Nnakanda and different metal specimen...
Corrosion as the determination or destruction of metal due to the reaction with it environment has posed a large amount of threat to industrial plants, human, increased cost of maintenance of plant and like cause injury to human due to accident in work place. This work studies the effect of environmental parameters of corrosion of three types of st...
The research work was carried out to examine the usefulness of moringa oleifera leaf dried in the presence of sunlight for effective treatment of salt water to achieve a reasonable and acceptable concentration when compared with the existing world standard value. The functional parameters examine in this research work are turbidity, pH, conductivit...
Computer programme language of MATLAB software was used to monitor, predict and simulated the characteristics of step input response on pneumatic proportional derivative controller with the concept of transfer functions. The prediction of step input response on pneumatic proportional derivative controller was examined using the concept of transfer...
The study of a biokinetic model development for bioremediation of 1kg of crude oil contaminated soil inoculated with crushed sun-dried and room-dried Azadirachta indica stem was conducted. First, physico-chemical analysis was carried out on the samples used in the experiment. The experiment was carried out ex-situ in twenty-six batch reactors, two...
This work involves the evaluation of effect of boiler operating temperature and pressure on the performance of steam power plant, a case study of Port Harcourt Refining Company. Thermodynamic principles of the Rankine cycle as the ideal cycle for steam power plant analysis were applied in this study. Boiler operating pressures of 43bar and 61bars w...
The various process performances of the Batch Reactor, Continuous Stirred-Tank Reactor (CSTR) and Plug Flow Reactor (PFR) for the production of sodium benzoate from the reaction of sodium hydroxide and benzoic acid were investigated. The performance equations for the operation of Batch reactor, CSTR and PFR were developed for the analysis of the re...
This research work was conducted to demonstrate the mechanism of white board marker ink production using locally sourced raw materials such as charcoal and used lube oil. In the production of the ink, the charcoal served as a pigment, used lube oil served as the primary binder or resin, ethanol served as solvent and gum Arabic served as an additive...
This research work was conducted to demonstrate the mechanism of white board marker ink production using locally sourced raw materials such as charcoal and used lube oil. In the production of the ink, the charcoal served as a pigment, used lube oil served as the primary binder or resin, ethanol served as solvent and gum Arabic served as an additive...
The reliability analysis on the boiler operation was conducted in this study. The operations of a boiler in the brewery process and the reasons for failure in the boiler's system operation was investigated; the various components of a boiler system such as vapourizer, overheater, economizer, rotary air preheater, Air fan and Flue gas fan was examin...
Different types of diseases are increasingly affecting people that live in today's highly pressurized society and these diseases are less responsive to treatment with conventional medicines. Onion is known to be highly medicinal, which is the reason why it is used as the best vegetable in preparation/garnishing of dishes and treatment of ailments....
This research work contains a review of the finite-difference time-domain (FDTD) method as applied to the time-dependent Schrödinger wave equation, and the basic update equations are derived in their standard form. A simple absorbing boundary condition was formulated and shown to be effective with narrowband wave functions. The stability criterion...
In this research, a mathematical model was developed to monitor, predict and simulate the energy characteristics of isotropic oscillator using three-dimensional (3D) approach. In the model, Langrange concept was applied: L = , and was expressed as a function of stiffness, k, and mass, m, which was modified as. MATLAB R2015 was used to monitor, pred...
Investigation was conducted to examine the rate of diethyl-ether production from ethanol using the approach of vapour-phase dehydration. The following functional parameters were examined to determine the significance on the production of diethyl-ether from ethanol on the concept of vapour-phase dehydration. The functional parameters are space time,...
Investigation was carried out to examine the effect of crude oil contamination of Aluu soil and some of the physiochemical parameters. The physiochemical parameters studied were temperature, pH value, electrical conductivity and available phosphorus. The result obtained revealed the significant effect of the crude oil contamination on the physicoch...
International Journal of Advanced Academic Research | Sciences, Technology & Engineering | ISSN: 2488-9849 Vol. 4, Issue 10 (October 2018) 62 MODELING AN ANAEROBIC REACTOR FOR THE TREATMENT OF INDUSTRIAL WASTE WATER
IDONGESIT EFFIONG SAMPSON*, C.P. UKPAKA & A.A. WORDU. Dept. of Chemical Engineering, Rivers State University, Port Harcourt, Nigeria....
The treatment of industrial waste water has become of utmost importance so as to destroy pathogens and limit odour associated with residual putrescible matter. This technical paper
“Modeling an anaerobic reactor for the treatment of industrial waste water” studies the kinetics of industrial waste water biodegradability under the condition of microb...
The treatment of industrial waste water has become of utmost importance so as to destroy pathogens and limit odour associated with residual putrescible matter. This technical paper "Modeling an anaerobic reactor for the treatment of industrial waste water" studies the kinetics of industrial waste water biodegradability under the condition of microb...
Reliability analysis of the brake system of a forklift automobile inspired by the forklift of Bouygues Construction Company was conducted in this study. The operations of a braking system in the automobile process and the reasons for failure in the brake's system operation were investigated; the various causes of failure in a brake system such as o...
Investigation was conducted to examine the significant impact of screening on total phosphate and total nitrogen in soil and water environment polluted by crude oil in Niger Delta area of Nigeria. Matrix Laboratory (MATLAB) computer programme language technique's was inputted from date obtained experimentally as presented in this research work. The...
Abstract
Mathematical model of least square method was applied in the monitoring, predicting and simulation of the crude oil
remediation using matlab integrated agricultural best management practice to improved soil nutrients. The matlab
computer program language was considered in the mapping system layout of Cell B1: Crude oil polluted soil + D...
In this research work Haber process was employed to examine the reliability of the functional parameters and coefficient on ammonia production using the fixed bed reactor with hydrogen gas and nitrogen used as the main source of the reactant. Mathematical models were developed to monitor and predict the effectiveness factors, nitrogen fractional co...
The research demonstrates the significance of some physicochemical parameters on the screening characteristics of suspension in bioremediation sampling. In this investigation, physicochemical parameters of soil sample polluted with crude oil was subjected into sampling by considering the total phosphorus, nitrogen and pH concentration at initial, i...
The application of Matrix Laboratory (MATLAB) computer programme language was used in the simulation approach to determine the best methodology for crude oil bioremediation using the concepts of decision tree mechanism with an integrated environmental management system to achieve high efficiency at end of the cleanup. Bioremediation is a process in...
Investigation was carried out to demonstrate the reliability analysis of generator components functional parameters of various companies' products used in servicing or repairing of failed generator components in Nigeria. The generator components influenced by rotational motion was considered during the studies, which include bearing, shaft, shaft p...
In this work, the aim is to carry out reliability analysis of generator shaft components of various companies used in Nigeria. The generator shaft components were analyzed using Monte Carlo model of reliability tool and techniques for evaluating reliability, unreliability, availability and to also determine number of failure (NF), corrective time p...
The application of Galerkin's finite element method was used in monitoring and predicting nitrate, chloride and total iron concentration within Aggrey Road Zone in Port Harcourt City of Rivers State. Polynomial model equations of the best fit was established in which (P C) C = 0.005 x 2 – 0.768x + 26.98, (Pc) N = 0.001x 2 – 0.160 x + 5.692 and (Pc)...
The study was carried out in Port Harcourt Local Government Area, during the dry season. The quality of groundwater in the area was studied using existing deep water well (borehole) constructed with steel casing and screens. Also shallow wells (hand dug) were investigated. Water samples from the groundwater were collected directly from the wells fo...
Keywords:Application, moringa, remediation, crude oil, water environment, packed bed
reactor
The operating efficiencies of moringa oleifera dry stem and conventional coagulants in water remediation were studied in this work using crude oil processing induced water body obtained from different locations in PortHarcourtasacase study.Themoringaoleife...
In this research work, investigation was carried out to examine the effect of oil and gas operation on soil characteristics as stated on the corrosion of metals. Three different soil samples of clay, sandy-loamy and swampy soil were collected within the Niger Delta environment. The results obtained revealed that corrosion rate was faster in order o...
An experimental investigation was conducted to examine the effect of crude oil on various maize species in terms of growth rate. The research work was done by polluting the maize environment (clay soil environment) with different degree of crude oil concentration and the growth rate of maize species were measure as presented in this paper. The vari...
Keywords : Distribution, parameter, Concentration, alkalinity, total hardness, stagnant water environment
Abstract:
Model for predicting the distribution parameter concentration of alkalinity and total hardness in stagnant water environment upon the influence of oil and gas emission was investigated in this work. The model was formulated from the b...
Mathematical model was developed to demonstrates the predominantly reaction controlled region and diffusion limited region for p 3 with high or large diffusion in this case, but when p = 0.3 the chemical reaction and diffusion onset occurred. The model developed illustrates the relationship between K₃C* and N/Nmax for various incremental steps...
A B S T R A C T
This project topic centers on the investigation conducted Sonbrerow river, typical salt-water environment for maximum number of 100 (hundred) days. A technique was developed, to provide a reliable evaluation of coating failure. The approach is able to determine the period that different coating could resist salt-water environment....
A B S T R A C T
Investigation was conducted to examine the variation of nitrate and sulphate on continues pollution of soil environment. The research involves experimental and theoretical approach to monitor and predict the rate of distribution and diffusion of nitrate and sulphate in soil environment. The application of least square method was ap...
A B S T R A C T
Mathematical models were developed to monitor and predict the performance on the reliability of velocity characteristics of functional parameters in a bioreactor in a plug flow system as well as the significance of the recycling of the concept in the bioprocess. In this case, a plug flow reactor was considered and the mathematical...
Abstract—This research outlines the microbial and substrate interaction in a plug flow bioreactor system for effective utilization of the substrate by the microorganism. To achieve this mathematical models were developed to monitor, predict and simulate the interaction characteristics of the bioreactor using the functional parameters for interactio...
The development of a mathematical model for predicting the diffusion of turbidity, total dissolved solid and total suspended solid in a stagnant water environment was investigated in this paper. The model was formulated from the basic principle of mass and momentum concept, which was resolved to obtain an ordinary differential equation. A mathemati...
Crude oil spillage on land is a major undeniable challenge we face in the Niger Delta, this is as a result of the oil exploration and exploitation activity done by the big oil multinationals and also those done by indigenous private firms, the petroleum could find its way to the soil via occurrences including pipeline leakages and explosions, corro...
Traditionally, carbon dioxide (CO2) injection has been considered an inefficient method for enhancing oil recovery from naturally fractured reservoirs. Obviously, it would be useful to experimentally investigate the efficiency of waterflooding naturally fractured reservoirs followed by carbon dioxide (CO2) injection. This issue was investigated by...
Research was conducted on industrial area of Niger Delta zone upon the influence of effluent discharge into the environment. An experimental approach was applied to monitor and predict the rare of contamination and variation on the physiochemical properties of chloride and phosphate of the soil characteristics of the environment. The concentration...
With the frequent reports of oil spillages in the Niger Delta, there is need to seek for a cost-effective method for mediation of crude oil impacted soils. This particular study focuses on the effect of Nutrient sources: NPK fertilizer and goat droppings on crude oil polluted soil from Afam in Oyigbo LGA of Rivers State. The study lasted 9 weeks du...
The diffusion of metals concentration in a stagnant water environment was monitored using experimental and theoretical approach. The model developed was based on the basic principle of mass and momentum concept which was resolved to obtain an ordinary differential equation. A mathematical tool known as the least square method was applied to resolve...
The effect of density, pressure drop, viscosity and orifice area on the characteristics of fluid flow was examined in this paper. Also studied was the effect on the control pressure change of the constant area variable pressure drop meter as a proportional derivative control. The mathematical model developed to monitor and predict the control of th...
Mathematical model was developed to monitor and predict the influence of restrictor or the characteristics of the functional parameters of the transfer function for pneumatic control system. The force acting from bellow is directly proportional to the effective cross-sectional area of the base which yielded extension of the bellow in both horizonta...
Research was conducted on industrial area of Niger Delta zone upon the influence of effluent discharge into the environment. An experimental approach was applied to monitor and predict the rare of contamination and variation on the physiochemical properties of chloride and phosphate of the soil characteristics of the environment. The concentration...
The purpose of this investigation is to ascertain the effect of solid waste deposited on Ntawogba creek. The Creek runs across the Port Harcourt and Abio Akpor Local Government Area of Rivers State in Niger Delta region of Nigeria. The study was carried out in four months within the period of 1st April to 30 July 2016. Physico-chemical characterist...
The paper presented a mathematical model that correlated the functional parameters of an ideal steady state flow Continuous Stirred Tank Reactor (CSTR) for both isothermal and non-isothermal cases of the system. The developed model illustrates the correlation equations for the variation of volume with temperature for Non-Isothermal Continuous Stirr...
Mathematical model for a bioreactor with recycle was developed to monitor, predict and simulate the characteristics of the dynamic as well as the coefficients of substrate and microbial growth upon the influence of Dilution rate and space time as well as the application on the developed model and the characteristics of controlling components were m...
52 | P a g e O c t o b e r 2 0 1 6 w w w. c i r w o r l d. c o m ABSTRACT Mathematical model equation for the bioadsorption of crude oil in a packed bed reactor was developed. The model demonstrates the usefulness of thematlab computer programming language in the simulation of the rate of adsorption of the crude oil as well as the Micheal'smenten a...
Oil spill is common to oil producing nations of the world. Various researches have been carried out. However, most
of the materials used for oil spill clean-up are non-biodegradable and require expensive treatment to become an
adsorbent. In this study, adsorptive capacities of cost effective raw hard and semi-hardwood particle sizes were
investigat...
Mathematical models were developed and formulated to determine the effect of momentum transfer on competitive inhibition of individual hydrocarbon degradation in pond system for dry season. Mathematical technique known as separation of variables was applied to the general solution from the hydrodynamic model. A new correlation has been developed in...
ABSTRACT
In this paper mathematical model was developed to monitor, predict and control the effectiveness of sensor designed with the principle of ramp input response. The result obtain in the investigation demonstrate the usefulness of input ramp response in monitoring, predicting and controlling the separation of the distillate product from the...
In this research work experimental and theoretical results were obtained to examine the production rate of ethanol from three different sources of raw materials (palm wine). The ram materials were allowed to undergo fermentation and results were obtained for pH, specific gravity, conductivity as well as the rate of production. The results obtained...
