Browsing by Author "Adesiji A.R"

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Characterization of Bottled water quality using water quality index in Minna Metropolis of Niger State Nigeria.
(2nd International Civil Engineering Conference (ICEC 2020), 2020-08-29) Asogwa E.O; Umar B.M; Adesiji A.R; Gbadebo A.O; Mangey J.A
Random samples of bottled drinking water in Minna metropolis were collected and analyzed using water quality index. This study was carried out to characterize the bottled drinking water using water quality index so as to assess the suitability of bottled drinking water from different sources with the study area. Ten samples were purchased at the sources of production for four consecutive months of April, May, June and July 2019 and analyzed for pH, Calcium, Total Hardness, Total Alkalinity, Chlorides, Magnesium, Sulphate, Nitrate, Iron, and Manganese. The results show that all the parameters analysed were all within the permissible limits of World Health Organization. The results obtained for the WQI from the different bottled water products were found to be varied from 4.96 to 21.65. These results indicate that the all the bottled water samples analyzed are safe for human consumption and for other domestic purposes. Effort should, however, be made to ensure the sustainability of the current method of bottled water production within the metropolis.
EFFECT OF CHEMICAL FERTILIZERS ON GROUNDWATER QUALITY IN AN UNCONFINED AQUIFER
(ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY & ENVIRONMENT, 2023-01-14) Asogwa E.O; Adesiji A.R; Jimoh O.D; Adeoye P.A; Odofin A.J; Mangey J.A; Odekunle O.M
The use of fertilizer on soil to improve agricultural yield has been practiced for years. While fertilizers and manures greatly improve crop yield, it is also important to consider their corresponding and devastating effects. In this study, the fertilizers application rate was varied and their effects on groundwater quality with soil depths of 30 cm and 60 cm were observed. Two fabricated lysimeters were used to collect soil samples undisturbed and taken to the laboratory for analyses. The samples in the lysimeters were made saturated and varying quantities of fertilizers from 87.37 g, 100 g. and 120 g were applied. The saturation of the samples was done through an improvised rainfall simulator which was set up in such a way that a constant discharge was adopted. Water samples were collected at 30 cm and 60 cm depths and analyzed for fertilizer residues and physico-chemical characteristics such as temperature, pH, total chloride, total dissolved solids, dissolved oxygen, conductivity, free ammonia, total phosphate, urea, zinc and iron were also analysed. The results showed that the more the quantities of fertilizers applied on the soil, the more it affects the physico-chemical properties of the water and renders it toxic and unsuitable for drinking purposes except treated. The results, however revealed that the concentrations of the fertilizers in the groundwater decreases with soil depths. It is therefore recommended that any groundwater being explored for domestic use close to soil surface in areas prone to fertilizer pollution should be well treated before consumption, most especially for people using shallow wells.
Effectiveness of Moringa Oleifera as Coagulant for treating Abattoir Waste Water
(2nd International Civil Engineering Conference. Department of Civil Engineering Federal University of Technology, Minna, Nigeria, 2020-06-23) Asogwa E.O; Hassan H.M; Adesiji A.R; Musa J.J; Mangey J.A
Effectiveness of using Moringa oleifera seed for the treatment of abattoir wastewater was studied for the period of five (5) weeks. Completely randomized design with loading dosages of 10, 12, and 14g of processed Moringa seed was used in the treatment. A control (wastewater from abattoir with no Moringa oleifera treatment) was also included. Physical and chemical properties of abattoir wastewater were investigated before and after treatment. The turbidity value was reduced drastically for the treatments from 16.43 mg/l to 11.20 mg/l for 20g treatment particularly in week 5. Total hardness was reduced from 216.67 mg/l to the lowest value at 137.67 mg/l for 10g treatment in the 5th week. Total alkalinity was reduced from 141.3 mg/l to 66 mg/l for the treatments, conductivity was reduced from 1395.7 mg/l to 670 mg/l for 14g treatments just within the first week. The dissolved oxygen was reduced from 6.7 mg/l to zero for the treatments while the BOD was reduced from 4.33 mg/l to zero. The Calcium value was reduced from 30.53 mg/l to 9.40 mg/l for 18g treatment in the 5th week. The results generally showed that the higher the quantity of Moringa oleifera seed applied to the wastewater as week passed by, the better the wastewater treatment.
Evaluating Haul Container System of Solid Waste Collection in Enugu Municipal
(Journal of Mechanical and Civil Engineering (IOSR-JMCE), 2022-02-28) Asogwa E.O; Saidu M; Adesiji A.R; Asogwa E.U; Mangey J.A; Muhammad S.J
Over the years, studies have shown that rapid population growth and the growth of urban centers result in the substantial increase in the amount of wastes generated hence the demand for a sustainable collection system.This research aims at evaluating haul container system of waste collection in Enugu Municipal which comprises 10 zones with the view of determining the zone with higher efficiency and better cost. The data for the research was obtained through the ten zone collection crews, questionnaires (through random sampling) and oral interview. The result indicates that there is problem of unregulated waste dumping, as a result of ineffective waste collection and inadequate number of waste bins in the said zones. The weekly operational cost of the haul system in the zones as obtained from the analysis carried out are N72,000, N71, 000, N66, 000, 62,000, N60, 000, N59,000 and N58, 000 for Emene, ( New Haven and Agbani Road), ( Independent layout and Coal Camp), GRA, (Trans-Ekulu and Ogui) Achara-Layou t andAbakpa respectively and the efficiency of the collection crew in the zones are also 88% , 83%, 78%, 73% and 68% for Abakpa, Achara- Layout , (Trans-Ekulu, GRA and Ogui Road), ( Independent layout and Coal Camp) and ( Agbani Road, New Haven and Emene) respectively. Therefore the haul container system of waste collection can be improved by provision of the required basic infrastructural amenities by Government through the waste management agency (ESWAMA).
Modelling Groundwater Recharge Estimation Using Modified Soil Moisture Balance Approach in Otukpo Basin Nigeria
(2nd International Civil Engineering Conference (ICEC 2020), 2020-04-29) Asogwa E.O; Adaudu I.I; Adesiji A.R; Musa J.J
Modelling Groundwater Recharge Estimation Using Modified Soil Moisture balance Approach in Otukpo Basin, Nigeria
(2nd International Civil Engineering Conference (ICEC 2020), 2020-04-28) Asogwa E.O; Adesiji A.R; Adaudu I. I; Musa J. J
ABSTRACT In this paper, groundwater recharge in Otukpo basin is estimated using a modified daily soil moisture balance based on a single soil water store for a climate classified as tropical with distinct dry and wet seasons in the Middle Belt part of Nigeria. Soil properties like field capacity, permanent wilting point, readily available water, actual and potential evapotranspiration, soil moisture deficit were all estimated and deployed in the model which algorithm was developed using Python programming language, hence the name modified soil moisture balance model. Runoff is estimated using runoff matrix and runoff coefficients which depend on rainfall intensity and soil moisture deficits. A new component, near surface storage, is used to represent continuing evapotranspiration on days following heavy rainfall even though the soil moisture deficit is high. Groundwater recharge is estimated for cassava and yam which are commonly cultivated vegetable crops in the study area. Meteorological data for the periods of 2008 to 2018 were used in the model analysis. The model recorded annual groundwater recharge which varied from 38.119 mm in 2017 water year (just 3.6% of annual rainfall for the year) to 333.35 mm in 2009 water year which is 20.01% of annual rainfall for the year). The highest annual rainfall depth was also observed in the year 2009 as 1665.4 mm, with the lowest annual rainfall depth, 1062.4 mm also observed in the year 2017. The annual runoff ranged from 322.04 mm in the year 2015, a 32.16 % of annual rainfall for the year to 935.56 mm in the year 2008 a 58.17 % of annual rainfall for the year. The lowest actual evapotranspiration AE was also observed in 2017 as against the highest in 2012. The AE ranged from 583.84 mm in 2017 to 721.39 mm in 2012. The model gave a simplified method of groundwater recharge estimation as well as runoff depth coupled with rainfall-runoff relationship.
Optimization Of The Adsorption Process In Landfill Barrier Using Response Surface Methodology (Rsm)
(IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE), 2024-04-17) Asogwa E.O; Adie D. B; Ibrahim F.B; Amadi. A.A; Saidu M; Adesiji A.R; Mangey J.A
Response Surface Methodology was used to examine the percentage of heavy metal removal from a sanitary landfill site utilising a lateritic soil-geopolymer composite. By Using the model, the lateritic soil geopolymer composite's adsorption potential was enhanced. The applicability of the employed model to predict the adsorption state is supported and confirmed by the good agreement between the observed and anticipated values of the removal efficiency. The applied models showed that all three of the components examined had an impact on the removal of heavy metals from sanitary landfill liners, but that the effects of dosage and contact time were more pronounced and had a substantial impact on the removal % of heavy metals. With dosage and contact time proving to be the most relevant of the three independent variables, the ANOVA findings show that the model parameters are significant. After refining the replies, the following settings proved ideal: dosage of 10g, contact time of 48 hours, and temperature of 50 °C. These yielded percentage removals of lead, zinc, and copper of 97.88%, 94.36%, and 99.48%, sequentially. Keywords: Heavy Metals, Geopolymer, Landfill, Barrier, Optimization, Lateritic-soil, Response Surface Methodology (RSM)
Performance Evaluation of Moringa oleifera as a Coagulant for Abattoir Wastewater Treatment
(ADVANCES IN AGRICULTURAL AND FOOD RESEARCH JOURNAL, 2024-04-30) Asogwa E.O; Adesiji A.R; Musa H; Odekunle M.O; Adeyemo G.B; Tanimu Y; Mangey J.A
The public's health and surface water are adversely affected by the improper disposal of abattoir wastewater. In this study, 40 litres of abattoir effluent was treated for ten (10) weeks using raw, powdered Moringa oleifera seeds as a coagulant. Processed M. oleifera seeds in loading quantities of 10, 12, 14, 16, 18 and 20 g were used in a completely randomised design (CRD) for the treatment. There was also a control (abattoir effluent not treated with M. oleifera). Before and after treatment, the physical and chemical characteristics of abattoir wastewater were examined. The results demonstrated that the treatments significantly lowered the turbidity value, which fell from 15.40 mg/L to 7.63 mg/L for a 16 g dosage in week 7. For the 20 g treatment in the first week, total alkalinity decreased from 216.67 mg/L to the lowest value of 63.67 mg/L. An amount of 14 g of M. oleifera lowered both the total hardness from 116.33 mg/L to 78.40 mg/L and conductivity from 1395.7 mg/L to 520 mg/L within the first week of the experiment. From weeks 2 to 6, the biological oxygen demand (BOD) was discovered to be nil. For the 14 g treatment, the Calcium value decreased from 31.47 mg/L in the first week to 6.23 mg/L in the fifth week. The results generally demonstrated that 16 g/500 mL of M. oleifera was capable of treating abattoir effluent, confirming its capacity to coagulate for the treatment of such waste. The study's extract doses did not affect the colour or smell of the treated wastewater. The results have generally highlighted that the natural coagulants could be successfully used for the removal of turbidity, faecal bacteria and all unwanted concentrations of heavy metals including zinc from abattoir wastewater.