Publication Title i. A Geophysical and Hydro-Physiochemical Study of the Contaminant Impact of a Solid Waste Landfill (SWL) in Port Harcourt Municipality, Nigeria Download PDF
Publication Type journal
Publisher • The Pacific Journal of Science and Technology. http://www.akamaiuniversity.us/PJST.htm
Publication Authors • C.N. Ehirim, J.O. Ebeniro, and D.A. Ogwu
Year Published 2009-11-26
Abstract • The contaminant impact of a municipal solid waste land fill on ground water in Port Harcourt municipality were investigated by integrating 2-D resistivity imaging and microbial with physiochemical analysis of water samples (BH1, BH2, and BH3), from three boreholes located 18.0 and 27.0m, respectively, parallel to the landfill in the south and 37.0m perpendicular to the landfill to the west. The results of the 2-D resistivity imaging of four profile lines isolated two distinctive pollutants mainly, anomalously low and high resistive structures, interpreted as rock material contaminated with leachate plume and land fill gases, respectively. The composition of these landfill gases are predominantly, likely to be methane (CH4) gas, than ammonium (NH3), hydrogen sulphide (H2S), and carbon dioxide (CO2). The microbial and physiochemical analysis also isolated two main contaminants. These are low pH values and excessive amount of micro-organisms (Bacteria, fungi, and coliform), in the samples. The low pH values of the borehole samples is an indication that the ground water is slightly acidic, with BH3 being the most acidic, while BH1 is the least. BH2 has the highest bacteria count, while BH3 has the least. BH1 has the highest coliform and fungal counts followed by BH2, and none in BH3. The low pH, with the corresponding low ionic constituents and heavy metals which are within the WHO reference standard for portable drinking water, suggests that the contamination of ground water is dominantly by land fill gases, while the excessive amount of micro-organisms is an indication of leachate contamination. These contaminants have migrated to depths exceeding 31.3m well below the aquifer, and over 40m offsite distance to the south from the landfill in the investigated site.
Publication Title ii. Investigating Rock Electrical Properties of Anambra River Basin, using Geophysical Technique. Download PDF
Publication Type journal
Publisher • International Journal of Technical & Scientific Research Engineering.
Paper Link www.ijtsre.org
Publication Authors • Ogwu, D.A., Molua, O.C., Edobor, M.
Year Published 2022-05-10
Abstract • Geophysical Investigation of Anambra South River Basin of Nigeriahas being studied This research work presents the methods of exploration with particular reference to the Electrical resistiviy method as used in determining the hydrogeology of some parts of Anambra South. Vertical Electrical sounding (VES) is utilized using the digital electronics Device, ABEM 300B Tetrameter with Schlumberger array. The hydrogeological provinces of the study area is: The Eastern lowland and the Western upland. The former is underLaid by the Imo formation while the letter is under laid by Ameki /Nanka and Ogwashi-Asaba formations. Results from data analysis and interpretation shows that clay and sand Formations are the predominant lithology within the study area. The aquiferous formation Lies within sand, clayey sand and sandstone lithology. Sands and sandstone appear to Have large thickness across the horizons and locations, the thickness of the horizons Varies between (1.20- 122.00) meters.
Publication Title iii. Hydrogeophysical Investigation of Aquifer Layers in Nkporo, Ohafia Local Government Area Download PDF
Publication Type journal
Publisher • Journal of Energy Engineering and Thermodynamics. http://journal.hmjournals.com/index.php/JEET
Paper Link http://journal.hmjournals.com/index.php/JEET
Publication Authors • Ogwu D A, Molua, O C, Ighodalo, E.J, Edobor. M
Year Published 2022-07-04
Abstract • Drilling a borehole in Nkporo area of Ohafia in Abia state without proper investigation may lead to wasting resources if water bearing formation is not achieved. This is because borehole drilling is very expensive. It is therefore necessary to carry out proper hydro-geophysical investigation in order to identify a good aquifer before borehole drilling. Electrical resistivity method has been chosen for the investigation of the water bearing formation. The use of Schlumberger array (Vertical Electrical Sounding (VES)) method of electrical resistivity was chosen based on the geology of the study area. This method was chosen because not only will it delineate the layers of the near surface aquifer but will also determine the thickness and depth to the aquifer. Five (5) vertical electrical soundings data were obtained from five (5) locations in the community using the Schlumberger array method. The investigations reveal that the area is mostly underlain shale. The formations are poor in aquifer materials. Borehole therefore, in the area should be drilled deep to depths ranging between 700 – 900m into sandstone as revealed in VES 3 and VES 4.
Publication Title iv. Mudlogging as an Exploration Tool: a Case Study of Ugu-16ST 1 Download PDF
Publication Type journal
Publisher • International Journal of Basic Science and Technology
Paper Link http://www.ijbst.fuotuoke.edu.ng/
Publication Authors • Molua,O. C., Eseka ,K., Ogwu, A. D.
Year Published 2022-04-16
Abstract This study examines measurement while drilling. Shell petroleum development company (SPDC) well UGU-16ST1 using mud logging concepts and parameters. The equipment – shale shakers, log charts, detectors, etc – as well as the metrics rate of penetration (ROP), weight on bit (WOB), and strokes per minute (SPM) provide an overview of the use of mud logging as an exploration technique. Real-time examination and log interpretation a significant step forward in fluorological evaluation. The stains show, and fluorescence after examination of the mud, it can provide indicators of the lithologies reached and, in most cases, the availability of hydrocarbon in the reached zone. In general, measures are used while approaching nearby lithological evaluation of unfavourable zones. As in gas-bearing sandstone. Mudlogging saves money because only wireline logs and well logs can be used. To "draw the wool over the firm's eyes," so to speak, because the firm will be better technically versed. Finally, this study has provided space for numerous mud logging recommendations, such as the employment of new sophisticated show detectors, correct chemical disposal units, and other efficient equipment commonly used in mud logging activities
Publication Title v. Environmental Audit of Camelite Paint Manufacturing Company Located at Agbor, Delta State, Nigeria. Case Study: Analysis of Effluent/Borehole water Discharge Download PDF
Publication Type journal
Publisher • International Journal of Advances in Engineering and Management (IJAEM).
Paper Link www.ijaem.net
Publication Authors • J. C. Morka, Dr. C. O. Molua, D. N. Nwachuku, D. A. Ogwu and Dr. A. O. Ukpene
Year Published 2021-05-05
Abstract • An Environmental Audit (E.A) study of physiochemical and bacteriological effluent and borehole discharges of Camelite paint Manufacturing Company limited, Agbor was investigated. pH was determined using the pH meter pre-calibrated using buffer 4 and 9. TDS contents were estimated using Lovibond conductivity meter. Heavy meal concentrations were determined with Spectra AA version 400 plus Atomic Absorption Spectrometer. Total aerobic bacterial counts were determined by the pour-plate technique. Total coliform counts were determined by the Most Probable Number (MPN) technique. The study revealed low pH, low TDS and small quantities of cations and heavy metal presence, and high total coliform bacteria counts of 42.2MPN/100ml which contributed to the bacteriological pollution of rivers and coastal waters resulting in limited possibilities of their use for recreation. It is suggested that to detect coliform organisms in water, either the multiple tube fermentation- technique or the use of the Membrane Filter be employed because of the disadvantages associated with the so called Most-Probable- Number technique whose test is not sensitive to large fluctuations in coliform densities. Management of Camelite should consider pollution abatement and ensure compliance with environmental requirements.
Publication Title vi. The Effect of Geomagnetic Storm in the Ionosphere using N-h Profiles. Download PDF
Publication Type journal
Publisher • The Pacific Journal of Science and Technology. http://www.akamaiuniversity.us/PJST.htm
Paper Link http://www.akamaiuniversity.us/PJST.htm •
Publication Authors • J.C. Morka; D.N. Nwachuku; and D.A. Ogwu
Year Published 2015-05-18
Abstract • This study presents the ionosphere effects of geomagnetic storms using N-h profiles. The data used are from ionograms at Ibadan (Latitude 70 260N, longitude 3.540 E and magnetic Dip of 60S. the result show a lot of variations as there are positive and negative storm phases. The disturbance daily variation of the electron density NmF2, the height of maximum electron density NmF2 and the sub peak electron density nT were then obtained to study the correlation between the disturbed and quiet days.
Publication Title QUALITY ASSURANCE IN SECONDARY EDUCATION: IMPLICATIONS OF TEACHING STRATEGIES AND STUDENTS’ ATTITUDE ON ACADEMIC ACHIEVEMENT IN BASIC TECHNOLOGY Download PDF
Publication Type journal
Publisher AGBOR JOURNAL OF SCIENCE AND SCIENCE EDUCATION (AJOSSE)
Paper Link www.AJOSSE.com
Publication Authors IDIALU JONATHAN OGBEIDE Ph.D , OGWU DANIEL A & NWACHUKWU DORIS NGOZI
Year Published 2014-06-20
Abstract Quality Assurance is important in the application of management procedures to ensure qualitative education to the satisfaction of the stakeholders. This paper investigated the effect of teaching strategies and students’ attitude on academic achievement in Basic Technology as a quality assurance process for the teaching and learning of the subject. Teaching strategies investigated were the interactive, independent and dependent teaching strategies.. Three null hypotheses were tested at P< 0.05 using two instruments; Basic Technology Achievement Test (BTAT) and Students’ Attitude Questionnaire (SAQ). The data were analyzed using ANCOVA. Results showed that teaching strategies and students’ attitude have significant effect on students’ achievement; the joint effect of teaching strategies and students’ attitude was significant on students’ achievement. The interactive teaching strategy was recommended for teaching the subject and the students should be exposed to practical, computer literacy to stimulate interest, attitude, and curiosity to enhanced quality
Publication Title A Simple Way of Estimating Geostrophic Wind in Modern Study of Synoptic Chart Download PDF
Publication Type journal
Publisher AGBOR JOURNAL OF SCIENCE AND SCIENCE EDUCATION (AJOSSE)
Paper Link www.AJOSSE.com
Publication Authors Morka, J.C, Ogwu, D. A. Osuhor, O. P.(
Year Published 2023-03-30
Abstract At each meteorological observing station, at each standard time of observation, measurements or estimates are made of pressure, temperature, wind speed and direction, humidity, state of the sky, weather at the time, visibility and other parameters. These meteorological parameters are plotted in synoptic charts on which isobars have been drawn containing a vast array of information which are in turn analyzed for use by forecasters, aviators and for other aeronautical purposes. The paper attempted to provide a simple means of estimating geostrophic wind at 3000km-4000km from deduced wind speed G = p/(2wdsin?)
Publication Title HAWKING AND ITS EFFECT ON CHILD’S EDUCATION: A CASE STUDY OF CHILDREN OF PORT HARCOURT, RIVERS STATE, NIGERIA Download PDF
Publication Type journal
Publisher Academic Scholarship Journal,
Publication Authors John Oji, Daniel Ogwu and Edwin Chucks Usifo
Year Published 2016-11-15
Abstract This study examined hawking and its effect on child education with Port Harcourt as a case study. One hundred and twenty (120) respondents were selected from six bus stops on Aba Road using purposive sampling techniques. Research instrument was administered by means of oral interview. Hawkers interviewed were between eleven and thirty years of age. Descriptive statistics and inferential statistics were used in data analysis. Simple percentage method was applied for the data analysis. The study revealed that most (70%) of the hawkers are males while few (30%) are females. The study discovered that majority of these hawkers are drop-outs from schools and the primary cause for this is poverty, also every other reason centre on the same poverty – 88% of the respondents were found to have dropped out of school due to poverty. The study reveals that Nigeria is continuously loosing potential human resources inhawking, which in turn has constituted these hawkers as social nuisance in the society. The study recommends among others, free education at all levels to enable these teenagers have access to education, provision of jobs to the educated ones as a way of discouraging this bad profession.
Publication Title HAWKING AND ITS EFFECT ON CHILD’S EDUCATION: A CASE STUDY OF CHILDREN OF PORT HARCOURT, RIVERS STATE, NIGERIA Download PDF
Publication Type journal
Publisher Academic Scholarship Journal,
Publication Authors John Oji, Daniel Ogwu and Edwin Chucks Usifo
Year Published 2016-11-15
Abstract This study examined hawking and its effect on child education with Port Harcourt as a case study. One hundred and twenty (120) respondents were selected from six bus stops on Aba Road using purposive sampling techniques. Research instrument was administered by means of oral interview. Hawkers interviewed were between eleven and thirty years of age. Descriptive statistics and inferential statistics were used in data analysis. Simple percentage method was applied for the data analysis. The study revealed that most (70%) of the hawkers are males while few (30%) are females. The study discovered that majority of these hawkers are drop-outs from schools and the primary cause for this is poverty, also every other reason centre on the same poverty – 88% of the respondents were found to have dropped out of school due to poverty. The study reveals that Nigeria is continuously loosing potential human resources inhawking, which in turn has constituted these hawkers as social nuisance in the society. The study recommends among others, free education at all levels to enable these teenagers have access to education, provision of jobs to the educated ones as a way of discouraging this bad profession.