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Search Results: 1 - 10 of 65 matches for " OIY Momoh "
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Effect of Waste Paper on Biogas Production from Co-digestion of Cow Dung and Water Hyacinth in Batch Reactors
OIY Momoh, LI Nwaogazie
Journal of Applied Sciences and Environmental Management , 2007,
Abstract: The effect of waste paper on biogas production from the co-digestion of fixed amount of cow dung and water hyacinth was studied at room temperature in five batch reactor for over 60 days. Waste paper addition was varied for a fixed amount of cow dung and water hyacinth until maximum biogas production was achieved. Biogas production was measured indirectly by water displacement method. The production of biogas showed a parabolic relationship as the amount of waste paper (g) increased with a goodness of fit of 0.982. Maximum biogas volume of 1.11liters was observed at a waste paper amount of 17.5g which corresponded to 10.0% total solids of the biomass in 250ml solution. Thus, an optimum waste paper amount of 17.5g needs to combine with 5g of cow dung and 5g of water hyacinth in 250ml of water for maximum biogas production. Similar equivalents in kilograms and tonnes can be utilized in large-scale production of biogas which can provide decentralized source of fuel for university laboratories and also local supply of energy for electricity production. Also, the air pollution problems associated with open burning of waste papers can be eliminated. The biogas process has established to be cheap and practically feasible.
Identifying Factors Hindering the Adoption of Expanded Polystyrene for Building Construction in Akure, Nigeria  [PDF]
Victor Momoh, Clement Oluwole Folorunso
Journal of Materials Science and Chemical Engineering (MSCE) , 2018, DOI: 10.4236/msce.2018.610001
Abstract: Housing provision has become a global issue as the need for affordable housing kept increasing in various communities especially in Akure, Nigeria. This has emerged due to various economic, socio-cultural and environmental factors which has increased pressure on conventional building materials thereby leading to the invention of alternative building materials. This paper looks at the barriers to the adoption of expanded polystyrene (EPS) for building construction in Akure, Nigeria. The methodology adopted elicited information through structured questionnaire which assessed the socio-economic characteristics of the respondents, their level of awareness of EPS and its application in building construction, the rate at which they specify EPS for designs and construction and the hindrances to its adoption for building construction. A total of 60 questionnaires were administered on the architects in practice and in the academia environment but 45 were retrieved. This was the bases to which the conclusion of this research was made. The outcome of the research shows that lack of awareness is a key hindrance to the adoption of EPS for construction as most architects in Akure do not know much about expanded polystyrene, thereby, cannot fully decipher its qualities and/or suitability for construction. As such, most questions pertaining the durability, cost implication or client’s preference could not be answered by the architects since their knowledge on the subject matter is minimal. However, those who knows about EPS confirms its flexibility, quick construction time and its environmental friendliness but stated that EPS is not readily available like other conventional materials. As such, their specification always goes towards the available materials.
Corrosion Behavior of Fe-Al-Zn Interphased Dual Phase Steel in Marine Environment  [PDF]
Itopa Monday Momoh, Isaac Enesi Dongo
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2019, DOI: 10.4236/jmmce.2019.72006
Abstract: Intercritical heat treatment operation has been in use for the development of Dual Phase Steel (DPS) and has been found to improve the mechanical properties of the steel. In spite of the enhancement a limitation was however observed as to its corrosion susceptibility. In a bid to further enhance the corrosion resistance of the DPS while maintaining its mechanical properties, galvanealing operation was adopted which involving the immersion of the DPS into Al-Zn melt and subsequently subjecting it to annealing operation at 550°C. Weight loss and linear polarization technique were used to measure or evaluate its resistance in 3.5% NaCl (a simulated marine environment). A minimum of 3 samples was used per immersion time. From the result, it was observed that there is a general sharp decrease in the corrosion rate of the GAS as compared to the control sample. The sample immersed and allowed to dwell in the melt for 20 seconds and further annealed with a soaking time of 20 minutes exhibited the highest corrosion resistance. The polarization curve also shows that the substrate was generally passivated, and this is as a result of the Al-Zn/Fe adhesiveness.
Incidence of Proteus species in wound infections and their sensitivity pattern in the University of Benin Teaching Hospital
RM Mordi, MI Momoh
African Journal of Biotechnology , 2009,
Abstract: Proteus species are frequently recovered from infected wounds. They contaminate wounds and thus cause infections. This study was carried out at the University of Benin Teaching Hospital (UBTH) to determine the involvement of Proteus species as one of the major causative organisms in wound infections. The study also determined the sensitivity pattern of the Proteus isolates. This was a prospective and cross-sectional study. Wound swabs and aspirates from various parts of the body and consisting of accidental, pathological and post-operative wounds were collected from patients who attended the clinics at the UBTH and examined by standard bacteriological methods. All isolates were tested for sensitivity against ciprofloxacin 5 μg, gentamycin 10 μg, streptomycin 10 μg, ofloxacin 5 mg/μg, chloramohenicol 10 μg, erythromycin 10 μg and tetracycline 10 μg. Of the 400 wound samples from various parts of the body 390 (97.5%) yielded growths and produced 560 isolates. Ten samples (2.5%) yielded no growths. Proteus species accounted for 150 (26.8%) of the isolates. Proteus mirabilis was the Proteus species most commonly isolated, 97 (17.3%), Proteus vulgaris 40 (7.1%), Proteus rettgeri 8 (1.40%), and Proteus morgagni 5 (0.9%). All the isolates were sensitive to ciprofoxacin, ofloxacin and gentamycin while all were resistant to tetracycline and erythromycin. Knowledge of the microbial flora of an environment and the sensitivity pattern are important tools in the management of wound infections especially those caused by Proteus species, and are also useful in formulating rational antibiotic policy.
A five year study on the susceptibility of isolates from various parts of the body
RM Mordi, MI Momoh
African Journal of Biotechnology , 2008,
Abstract: In Nigeria, like most developing countries, there is little or complete lack of antibiotic prescribing policy. This results in a situation where antimicrobial agents are bought and consumed indiscriminately, thus leading to drug abuse. The ugly consequence is the development of resistance by microorganisms to these antimicrobial agents. This study seeks to determine the antibiogram of common isolates from swabs and aspirates in the University of Benin Teaching Hospital, Nigeria, in the last half a decade. The design was prospective and cross sectional. Patients attending the University of Benin Teaching Hospital clinics were used for the study. The various antimicrobial agents used in this study were amoxicillin clavulanate 30 ìg, cefuroxime 30 ìg, ceftazidime 5 ìg, ofloxacin 5 ìg gentamicin 10 ìg, amoxicillin 25 ìg, erythromycin 5 ìg, cloxacillin 5 ìg, cotrimoxazole 5 ìg, tetracycline 10 ìg, and chloramphenicol 30 ìg. Cultures were prepared using standard methods and incubated aerobically and anaerobically at 37°C for 48 h. Identification was by morphological characteristics and biochemical tests. The various isolates for the five-year period were Staphylococcus aureus 1000, Klebsiella pneumoniae 340, Proteus mirabilis 38 Escherichia coli 295, Pseudomonas aeroginosa 240, Alcaligenes faecalis 200, Enterobacter aerogenes 175, Acinetobacter baumannii 150, Proteus vulgaris 110, Providencia stuartii 101, Streptococcus pneumoniae 16, Citrobacter freundii 51. The isolates varied widely in their susceptibility pattern. Almost all the isolates were about 100% resistant to cloxacillin, tetracycline and cotrimoxazole. The analysis of variance (ANOVA) showed no difference in the susceptibility pattern of the isolates in the five years. However there was significant difference in the efficacy of the various antimicrobial agents and the number of isolates. This study achieved its aim of determining the microbial flora and their sensitivity pattern at the University of Benin Teaching Hospital in the last half a decade. The increasing rate of drug resistance demonstrated by the isolates particularly to cheap and frequently used antimicrobial agents raises serious concern.
Generation of Electricity from Abattoir Waste Water with the Aid of a Relatively Cheap Source of Catholyte
O Momoh, B Neayor
Journal of Applied Sciences and Environmental Management , 2010,
Abstract: The generation of electricity from high strength abattoir waste water has been demonstrated to be feasible at room temperature using a novel electron acceptor as catholyte in dual-chambered microbial fuel cell systems with agar- salt bridge inter-connection. The utilization of this electron acceptor in the single dualchambered and double dual-chambered in parallel and series was observed to produce an open circuit voltage of 1560mV, 1400mV and 2860mV respectively. Maximum power density was observed to be 12.26mW/m2, 20.71mW/m2 for the single dual-chambered and double dual-chambered in parallel respectively. However, due to very high internal resistance of the double dual-chambered in series (>9999Ω) a very poor polarization data was obtained. Current densities at maximum power for the single dual-chambered and double dual-chambered in parallel were observed to be 16.09mA/m2 and 35.77mA/m2 with internal resistances 4000Ω and 600Ω respectively. The application of this novel catholyte for power generation in MFC’s systems has the potential of regeneration thus, sustaining its utility for long periods. It was concluded that for large scale applications, MFC’s systems utilizing this novel catholyte as electron acceptor, connection in parallel would be preferable, because of the high open circuit voltage, reduced internal resistance and high current density achieved from such connections.
Effect of Waste Paper on Biogas Production from Co-digestion of Cow Dung and Water Hyacinth in Batch Reactors
OLY Momoh, LI Nwaogazie
Journal of Applied Sciences and Environmental Management , 2008,
Abstract: The effect of waste paper on biogas production from the co-digestion of fixed amount of cow dung and water hyacinth was studied at room temperature in five batch reactor for over 60 days. Waste paper addition was varied for a fixed amount of cow dung and water hyacinth until maximum biogas production was achieved. Biogas production was measured indirectly by water displacement method. The production of biogas showed a parabolic relationship as the amount of waste paper (g) increased with a goodness of fit of 0.982. Maximum biogas volume of 1.11liters was observed at a waste paper amount of 17.5g which corresponded to 10.0% total solids of the biomass in 250ml solution. Thus, an optimum waste paper amount of 17.5g needs to combine with 5g of cow dung and 5g of water hyacinth in 250ml of water for maximum biogas production. Similar equivalents in kilograms and tonnes can be utilized in large-scale production of biogas which can provide decentralized source of fuel for university laboratories and also local supply of energy for electricity production. Also, the air pollution problems associated with open burning of waste papers can be eliminated. The biogas process has established to be cheap and practically feasible
Incidence and complications of traditional eye medications in Nigeria in a teaching hospital
Ukponmwan Catherine,Momoh Nanaiashat
Middle East African Journal of Ophthalmology , 2010,
Abstract: Purpose: The aim of this study was to determine the types and nature of traditional eye medications (TEMs), their sources, and the ocular complications that may arise from use in a teaching hospital in Nigeria. Materials and Methods: A prospective study of consecutive subjects who used TEM before presentation to the Eye Clinic of the University of Benin Teaching Hospital, Benin City, Nigeria between July 1, 2004 and June 30, 2008. P < 0.05 was considered statistically significant. Results: A total of 113 subjects were evaluated of which 64 were males (56.6%), females (43.4%) were females. There was no significant difference in the number of males and females (P > 0.05). Rural dwellers were more likely to use TEM than urban dwellers (P < 0.0001). The mean age of the subjects was 47.9 22.3 years (range, 4-90 years). The most common traditional medication was derived from plant extracts (54.9%) followed by concoctions (21.2%). Complications occurred in 54.8% of the subjects. Ocular complications included corneal opacities in 13.35% of subjects, staphyloma in 9%, and corneal ulcers in 8%. Other complications were panophthalmitis, endophthalmitis, uveitis, cataract, and bullous keratopathy. Eleven subjects underwent evisceration or enucleation of the affected eye. There was no significant difference in the type of medication used and ocular complications (P = 0.956). Sources of TEM were self-medication in 38.9% of subjects, relatives in 27.4%, and traditional healers in 17.7%. Conclusion: The use of TEM is a common practice that could be harmful and lead to blindness. Proper health education of the public and traditional healers can reduce the prevalence of preventable blindness.
Studies on the Consequences of the Administration of Aqueous Extracts of Azadiracta Indica and Morinda Lucida on the Heamatological Parameter and the Activities of Phosphatases in Rats Cellular Tissues
Ejembi Daniel,Sanni Momoh
International Journal of Asian Social Science , 2012,
Abstract: Studies on the effects of the combination of aqueous extracts of Azadiracta indica and Morinda lucida on packed cell volume(PCV) and the activities of phosphatases of rat cellular tissues was investigated. Twenty eight (28) albino rats of six month old of an average weight 182.4g were grouped in to four groups; A, B, C and D. All the rats in the four groups were fed with fowl formulation feeds obtained from poultry store in VOM Jos, Plateau State, Nigeria and water was provided ad libitum for 18 days. Rats in group A, B, C were administered 0.5ml/kg body wt each of A.indica extract, only M.lucida extract, and combination of A.indica and M.lucida extracts orally respectively for 18 days. Group D contained seven rats designated “control”. One of the rats from the control was sacrificed at day one, its cellular tissues (liver, kidney, small intestine, and large intestine) were collected and analyzed for PCV, Alkaline Phosphatase (ALP) and Acid Phosphatase (ACP) activities. One of the rats from each of the groups A, B, C and D were sacrificed at every three days interval and these tissues were also collected and analyzed for PCV, ALP, and ACP activities. The result showed a significant decrease in the activities of these enzymes as compared to the control values. The trends of the activities of these enzymes were similar following repeated administration of the extracts, and thereby caused alterations in the activities of both enzymes. This trend when subjected to student t-test analysis, showed significant difference at P>0.05.
Mechanical Properties and Microstructures of Locally Produced Aluminium-Bronze Alloy  [PDF]
Uyime Donatus, Joseph Ajibade Omotoyinbo, Itopa Monday Momoh
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2012, DOI: 10.4236/jmmce.2012.1110105
Abstract: This work studied the feasibility of producing a dual-phase aluminium bronze alloy and the use of selected treatments to manipulate the mechanical properties of the produced alloy using local techniques, as a potential replacement for con- ventional structural materials, particularly steels. Sand casting was used and was found to be effective based on its ad- vantages of low cost, ease of use and flexibility in the production of a dual-phase aluminium bronze alloy with pre-selected composition of 11% Al content. Cold deformation of 10 and 20% degrees and selected heat treatments were used on the cast alloy to influence its mechanical properties. The selected heat treatments are solution heat treat- ment, normalising, and ageing. The results showed that normalising gave the optimum mix of tested mechanical proper- ties with ultimate tensile strength in the range of 325 MPa, elongation of around 60% and Rockwell hardness values of 46.5 - 63.7 HRc, making this alloy suitable as alternatives to steel in low/medium strength structural applications.
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