Publications and Abstract of Research
Civil Engineering Department (2017-2018)
List of 2017-2018 Publications and Abstract of Research from Civil Engineering Department
School of Engineering and Engineering Technology
| S/N | Author's Name & year of publication | Title of work | Abstract | Journal Name | Journal Vol./Number |
|---|---|---|---|---|---|
| 1 | Osuagwu, J.C., Owakah, A., Chukwuocha, A. C. and Ibeje, A. O. (2017). | Settlement Monitoring of Embankment Dams- Case Study of Gurara Dam, International Journal of Science and Engineering Investigations. | Embankment Settlement in earth dam is common at post construction. Settlement also occurs during construction where compaction of fill materials is below optimum level specified in the design. This study analysed post Settlement of Gurara Multipurpose Dam built on the Gurara River near Abuja, the capital of Nigeria. Seven monitoring devices such as Electrical Vibrating Wire Piezometers (EVW), Standpipe Piezometers, Relief Wells, Finger Drains, Differential Settlement Monitoring (DSM), V-notch and Concrete Block Tape Extensometer were used in Gurara Multipurpose dam. Data obtained from DSM devices was used in the settlement analysis. Ten year (2004-2014) data were obtained at seven control stations of the crest settlement data of the embankment. There are seven sections and each section comprises of three DSM devices, except section 22 which has only two. The dimensionless parameter known as settlement index (Si) and the percentage of the dam elevation P (%) that settled at each section were calculated for each of the seven sections. The measured difference in relative height P(field) and the calculated percentage of the dam elevation P(%) that settled at each section were plotted to ascertain the deviation limit of the dam crest. The study showed that the maximum value of the settlement index (Si) for each set of measurements at all sections was significantly lower than the threshold value of 0.02. Also the P (%) was less than 1% in all the sections indicating absence of creep or secondary consolidation of the embankment material. | International Journal of Science and Engineering Investigations | Vol. 6, issue 71. ISSN:2251-8843 |
| 2 | Ikpa, P. N., Okoro, B. C. and Osuagwu, J. C. (2017). | Assessment of the Impact of Effluent Discharges on the Quality of Aba river South Eastern Nigeria. International Journal of Science and Engineering Investigations | The study assessed the impact of effluent discharges on the quality of Aba River South Eastern Nigeria. Twenty two water samples were collected at discharge points of the following industries; Nigerian Breweries, 7Up bottling Co, PZ Industries, Starline and Abattoir. Standard methods were adopted for field and laboratory analysis of samples collected upstream and downstream. The parameters analyzed include; Potassium, Sodium, Nitrate, Phosphates, Sulphates, Bicarbonates, Conductivity, pH, Iron, Calcium, Magnesium, Turbidity, Chloride, Alkalinity, BOD, Total dissolved solids, COD, Total hardness, Total suspended solids. Comparison of results obtained with WHO standard showed that Nitrates at PZ Industry and Abattoir recorded values of 47.4Mg/l and 55.22Mg/l respectively which exceeded WHO value of 10; Turbidity values of 43.33NTU at Abattoir was higher than the WHO limit of 29, BOD values of 12.87Mg/l and 14.86Mg/l at 7UP and Starline Industries also exceeded the range of 4-7 by WHO. However, other parameters analyzed were lower or within WHO limits. The value of pollution index is 1.317 which indicates that the river is moderately polluted. The source of pollution is attributable to industrial and abattoir activities whose effluent discharges impact the quality of Aba River. The River can therefore not be used in its present form for any domestic purpose without treatments. Periodic monitoring of the river and introduction of cost-effective methods of production technologies, such as, on-site waste separation and reduction; and effluent recycling methods are recommended. | International Journal of Science and Engineering Investigations. | Vol.5. issue 53 |
| 3 | Uzoh, U. E., Okoro, B. C. and Osuagwu, J. C. (2017). | Evaluation of Urban DrinkingWater Quality in South East Nigeria | The study evaluated the quality of urban drinking water in South Eastern Nigeria covering the states of Abia, Anambra, Ebonyi, Enugu and Imo. Fifteen drinking water samples were collected from identified sources of water supply including Borehole, streams and reservoirs in the states. All samples collected were subjected to physical, chemical and bacteriological analysis using standard laboratory techniques. Some of the measurements like temperature, ph and conductivity were carried out in-situ while other tests were carried out in the Laboratory. The values of the physical, chemical and bacteriological parameters were assessed based on World Health Organization (WHO) specifications for safe drinking water. Results indicate variations in values of the quality parameters across the states. Turbidity values exceeded 5.0NTU specified by WHO. Also magnesium hardness and iron concentrations exceeded acceptable limits as well as phosphates. However, the bacteriological qualities are generally acceptable as no growth was recorded at 35oC after 24hrs and there was absence of E-coli. The fluctuations in quality of drinking water should be a major source of concern to government agencies involved in water delivery. There is need for improved water quality control to be supported by coordinated policy and adequate legal and institutional framework which are essential tools for sustainable development. | International Journal of Science and Engineering Investigations. | Vol. 6, issue 71. ISSN:2251-8843 |
| 4 | Osuagwu, J. C., Nwakwasi, N. L. and Nwachukwu, A. N. (2018). | Iron Removal in Waste Water using Expanded Polystyrene as an Artificial Media. | This study focused on the use of Expanded Polystyrene as an artificial media for the removal of iron from raw water. The experimental set-up consisted of continuous flow process and the mechanism for iron removal was by adsorption. Water sample of initial concentration 5.5mg/l was stored in a 50l container situated at an elevation of 4.4m above the floor and was connected to a plastic transparent container which contained the filter media” Polystyrene”. The effects of adsorbent dosage, contact time, pH and temperature were studied. Results showed that adsorption capacity increased with time for the time range of 0.68-47.6mins investigated and slightly with an increase in temperature until 40oC when it began to decrease, suggesting favorable adsorption at medium temperatures. The results showed that the procedure was efficient in reducing iron concentration from 5.5mg/l to 3.5mg/l within contact time of 5minutes. Better efficiencies could be achieved at higher contact times. The use of EPS material would also offer an avenue for recycling polystyrene widely used in packaging of equipment. | Nigerian Journal of Technology (NIJOTECH) | Vol. 37, No. 3 ISSN: 0331-8443 |
Showing 1 to 4 of 17 entries
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