Papers by Temitope F . AJIBADE
Environmental and Health Management of Novel Coronavirus Disease (COVID-19 )
Progress and Prospects in the Management of Oxyanion Polluted Aqua Systems
The increasing levels of nitrogen oxyanion pollution especially nitrate in water environments hav... more The increasing levels of nitrogen oxyanion pollution especially nitrate in water environments have become a critical issues of concern because of the potential risk on ecology and human health. Owing to its distinctive merits of sustainability, lesser operational and maintenance expenditure, the utilization of constructed wetland systems for the treatment of wastewater has turned out to be predominant worldwide. Its nitrogen oxyanion removal performance has received significant attention in the last two decades. This chapter presents a comprehensive outline of the application of constructed wetlands (CW) for nitrogen oxyanion removal from water and wastewater. The removal mechanisms and transformations of nitrogen are also discussed. In addition, the major factors that influence the removal performances in CWs are elucidated, especially the types of carbon sources commonly used, and how it affects the denitrification process. This chapter would be useful to engineers and researchers in the field of water and wastewater engineering.
Microbe Mediated Remediation of Environmental Contaminants
DESALINATION AND WATER TREATMENT
Removal of emulsified oil droplets less than 20 µm and maintaining operational stability remains ... more Removal of emulsified oil droplets less than 20 µm and maintaining operational stability remains a key concern in the field of oily wastewater treatment. In this work, a major breakthrough was achieved via modification of polyacrylonitrile/polyvinylidene fluoride (PAN/PVDF) blended ultrafiltration (UF) membrane with oxidized multiwall carbon nanotubes (O-MWCNT) to tailor the membrane chemical properties for boosted oil and water separation. Overall, a high separation performance of oily emulsion (99%) and simultaneous increase in flux up to 65% was achieved using the novel O-MWCNT/PAN/PVDF membrane. Moreover, the performance of the O-MWCNT/ PAN/PVDF membrane was consistent after 28-cycles of oil separation and the antifouling properties were exceptionally enhanced by 96%. In addition, there was a significant decrease in fouling in terms of the cake, pore, and intrinsic resistance. Furthermore, evidence of even dispersal of nanofillers was confirmed by an increase of casting solution viscosity with increasing O-MWCNT. Consequently, this provides a remarkable mechanical/tensile strength of 5.94 MPa, and 16.05% elongation of the O-MWCNT/PAN/PVDF fingerlike structured UF membrane. The novel O-MWCNT/PAN/PVDF membrane demonstrated promising properties that balanced the membrane tradeoff between permeability and selectivity, as well as, improved mechanical strength and operational stability that can elongate the life span of the membrane in oily wastewater treatment.
Bioresource Technology, 2021
Biochar was utilized to intensify constructed wetland (CW) for further organic and nitrogen remov... more Biochar was utilized to intensify constructed wetland (CW) for further organic and nitrogen removal from secondary wastewater. Four sets of non-aerated biochar amended vertical flow CW (VFCW) were developed to investigate the synergistic effects of biochar and microbes on pollutant removal. Results showed that the average COD and nitrogen removal efficiencies of VFCW1 (with 1% w/w biochar with microbe and plants) achieved 89.1±5.6% and 90.2±3.1% respectively, and their corresponding removal rates of 10.2±0.8 mg-COD/(m3.d) and 3.57±0.3 mg-TN/(m3.d) which were 35 and 52.3% higher than control. The biochar’s dissolved organic carbon release in VFCWs indicated that water and acidic media portray the optimum conditions for nitrogen removal. The 16S RNA gene sequencing analysis indicated that in the biochar-amended VFCWs, bacterial phylum Proteobacteria (24.13-51.95%) followed by Chloroflexi (5.64-25.01%), Planctomycetes (8.48-14.43%), Acidobacteria (2.29-11.65%) were abundantly enhanced. Conclusively, incorporating biochar in non-aerated VFCWs is an efficient technique for enhancing nitrogen removal from secondary effluent.
Environmental Research, 2020
Water is an essential resource required for various human activities such as drinking, cooking, a... more Water is an essential resource required for various human activities such as drinking, cooking, and other recreational activities. While developed nations have made significant improvement in providing adequate quality water and sanitation devoid of virus contaminations to a significant percentage of the residences, many of the developing countries are still lacking in these regards, leading to many death cases among the vulnerable due to ingestion of virus-contaminated water and other waterborne pathogens. However, the recent global pandemic of COVID-19 seems to have changed the paradigm by reawakening the importance of water quality and sanitation, and focusing more attention on the pervasive effect of the use of virus-contaminated water as it can be a potential driver for the spread of the virus and other waterborne diseases, especially in developing nations that are characterized by low socioeconomic development. Therefore, this review assessed the socioeconomic inequalities related to the usage of virus-contaminated water and other waterborne pathogens in developing countries. The socioeconomic factors attributed to the various waterborne diseases due to the use of virus-contaminated water in many developing countries are poverty, the standard of living, access to health care facilities, age, gender, and level of education. Some mitigation strategies to address the viral contamination of water sources are therefore proposed, while future scope and recommendations on tackling the essential issues related to socioeconomic inequality in developing nations are highlighted.
Woodhead Publishing Series in Food Science, Technology and Nutrition, 2021
Environmental pollution is increasingly becoming an issue of significant public interest in many ... more Environmental pollution is increasingly becoming an issue of significant public interest in many developing countries and the international community at large. The growing socioeconomic developments as witnessed globally in recent times due to rapid urbanization and industrialization have led to the overexploitation of natural resources, while inadvertently resulted in severe environmental problems. In this chapter, we attempted to present the effect of environmental pollution to our physical environment as well as its socioeconomic impacts. Specifically, we focused more on the major types of pollution, which are widely recognized as international public health problems, namely, land/soil, water, air, noise, and plastic/microplastic pollution, enumerating their effects and how they have acted as an obstruction to the social and economic progress by placing tremendous pressure on resources and environment. Possible ways of ensuring environmental quality and sustainability leading to improved public health and well-being alongside with different kinds of intervention were proposed.
International Journal of Environment and Waste Management, 2019
This study examines the influence of uncontrolled deposition of MSW disposal on soil in four sele... more This study examines the influence of uncontrolled deposition of MSW disposal on soil in four selected dumpsites across Akure city, Nigeria. Physicochemical and microbial tests were carried out using standard procedure. Soil samples were randomly collected using soil auger from the major (Igbatoro and Iju-Itaogbolu), and the minor (Ijare and FUTA) dumpsites, at depths (0–10, 10–20, 20–30 cm), with control samples taken at a distance 20 m away from each dumpsite. The physicochemical parameters measured include
pH, total organic matter, total organic carbon and particle size distribution. The results showed that samples were predominantly acidic (4.12 to 6.73), sandy (32.69 to 65.40) with values ranging from 0.17 to 4.14 and 0.02 to 3.15 for organic matter and organic carbon respectively. The mean values for both aerobic bacterial counts and heterotrophic fungal counts from control to the dumpsites ranged from 188 × 106 to 258 × 106 cfu/mL, and 128 × 106 to 193 × 106 cfu/mL, respectively. Although there exists some positive impacts of dumpings on soil, their adverse effects are life threatening.
Journal of Water and Climate Change, 2020
Soil erosion and mass movement processes spread across Anambra State in Nigeria, therefore making... more Soil erosion and mass movement processes spread across Anambra State in Nigeria, therefore making management and conservation techniques expensive and difficult in execution across the entire state. This study employed the Revised Universal Soil Loss Equation (RUSLE) model with the integration of geographic information system (GIS) and remote sensing techniques to assess the risk of soil erosion and hotspots in the area. Remotely sensed data such as Landsat 8 imagery, Shuttle Radar Topography Mission (SRTM) imagery, Era-Interim coupled with world soil database were used as digital data sources for land use map, digital elevation model, rainfall and soil data, respectively, to generate the Universal Soil Loss Equation (USLE) parameters. The results indicated vulnerability level in low, medium and high cover areas of 4,143.62 (91%), 332.29 (7%) and 84.06 (2%) km 2 , respectively, with a total soil loss between 0 and 181.237 ton/ha/yr (metric ton per hectare per year). This study revealed that high rainfall erosivity, steep and long slopes, and low vegetation cover were the main factors promoting soil loss in the area. Thus, the amount of soil loss in Anambra State is expected to increase with climate change and anthropogenic activities.
Sustainable Water Resources Management, 2020
Water is an essential natural resource that is vital for sustaining every form of life existence.... more Water is an essential natural resource that is vital for sustaining every form of life existence. Availability of groundwater is spatially and temporally dependent upon the terrain of an area. In order to improve efficiency and effectiveness in water availability, supply and use, the construction of water harvesting structures across streams/watersheds is gaining drive in recent years. The increase in demand for water has led to the construction of water storage dams for various purposes such as community and industrial use, irrigation, flood control, hydropower and river canalization. Safety is the key consideration than cost and capacity as the failure of a dam often results to severe loss of lives and properties, hence the need to consider some important criteria for suitable dam siting. In this study, potential sites for construction of dams in Imo State, Nigeria, have been identified by using geographical information system and remote sensing techniques which were integrated with fuzzy logic to achieve the study objectives. Climatic and geophysical factors such as rainfall, runoff, stream order, soil type, geology type and land use were considered. These factors assigned fuzzy membership classes according to their contribution in locating suitable dam sites. The fuzzy members for all the factors were combined using the fuzzy overlay technique to produce the suitable dam site selection map. Majority of the selected sites were located in the northwestern part of Imo State which is characterized by high elevation and gentle slope.
Journal of Civil Engineering, Science and Technology, 2020
Public places within Nigeria are ever humming with tremendous activity and accordingly reflecting... more Public places within Nigeria are ever humming with tremendous activity and accordingly reflecting growth and development of the host cities. The ensuing channelization demands of these centres calls for apposite sanitation to enhancing efficient operation and utilization. This study was undertaken to assess the present status of onsite sanitation facilities in public places within Akure, to trace problems related to sanitation and solid waste management. Logical sampling methods were used to sample the users and passers-by of selected public places. Primary data were acquired from scrutinizing sanitation facilities, employing questionnaire, and interviewing the chief players-drivers and traders-in these centres. Qualitative and quantitative data obtained from both primary and secondary sources were employed for this study. Survey facts were analyzed using descriptive statistical method while Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) was further utilized in results analysis. The outcomes showed existing sanitary facilities are insufficient to match the populace, and a poor maintenance of these facilitates credited to unavailability of dedicated management staff coupled with flawed maintenance and monitoring by local authorities. This is occasioned by lower than normal patronage. Further, the general experience of the respondent with regard to these facilities were rather unpleasant. Combating strategies to the established challenges in the selected centres are active governmental involvement in restructuring these places in conformity with standard requirements; community support programs, and a supervisory team routinely overseeing the reliability and development of sanitation facilities.
Environmental and Sustainability Indicators , 2020
Recent happenings (like fire outbreak and soil contamination) on Nigerian dumpsites had reiterate... more Recent happenings (like fire outbreak and soil contamination) on Nigerian dumpsites had reiterated the need to frequently monitor and assess these dumpsites in order to avert environmental disaster. This study was conducted to determine the concentration and distribution of elements in four selected dumpsites in Ondo State, Nigeria. Soils sampled from the dumpsite were tested for their particle size distribution, cation exchange capacity and elemental concentration. The statistical relationship between the elements present was also carried out by analyzing its concentrations. The results showed that sand and clay were the main particles present in the studied dumpsite soils. The low cation exchange capacity values of the soil from the studied dumpsite showed its low retention capacity and fertility. The elements (calcium, magnesium, potassium) needed as macronutrients for plant growth on the dumpsite soil were not present in a large concentration which may be due to the low nutrient retention capacity of the soil. The heavy metals present in the dumpsite though above recommended permissible limit (with the exception of chromium) showed (through the contamination indices) no immediate risk on man and the environment. Statistical analysis showed that there was a statistically significant difference in the concentration of the elements present on the studied dumpsite soils. There was, however, no statistically significant difference in the studied dumpsites. Whatever future plans the State government may have for these dumpsites, this study had pointed out some areas of the soil that may need to be improved and/or monitored for proper remediation.
Scientific African, 2020
This study investigates the production of ceramic water filters from various clay materials and t... more This study investigates the production of ceramic water filters from various clay materials and their performances to improve the physical and bacteriological quality of drinking water. Ceramic water filters were prepared by combining clay with sawdust at various ratios. The water absorption rate, flow rate and microbial removal efficiency were analyzed. The results indicated that some clays produced from Ire Ekiti Brown clay at ratio 50:50 and 40:60, Ire Ekiti Red clay at ratio 40:60 and 30:70 and Isan Ekiti Brown clay at ratio 40:60 and 30:70 all have high absorption rates which resulted from the high sawdust content in the mixture; as sawdust possesses high porosity. Also, filters produced ranging from 60:40 to 40:60, 50:50 to 40:60 and 70:30 to 40:60 for Ire Ekiti brown clay sample, Ire Ekiti red clay sample and Igbara Odo Ekiti clay sample respectively and for both Ikere Ekiti white clay and Ara Ekiti clay samples at 40:60 all showed better microbial removal efficiency as they could remove more than 95% of coliform bacteria and Escherichia coli. The Ire Ek-iti Brown ceramics filter was considered suitable for producing filter materials based on a recipe combination which varies from 60:40-40:60. Ire Ekiti Red and Igbara Odo Ekiti Brown ceramics pot filters both recorded a high flow rate owing to the high porosity of their filter components which is as a result of the higher percentage of the constituents of burnout material. Of all the ceramic filter produced, 50% to 50% ratio of Igbara odo clay to sawdust gave the best and optimum mix which was found to be highly efficient in the removal of microbes in the water sampled. This research reveals the ability of the ceramic filters made principally from locally available materials (clay and sawdust) for microbial removal in wastewater biotreatment.
Results in Engineering, 2019
The research was aimed at producing a cost-effective ceramic filter for the removal of bacteria i... more The research was aimed at producing a cost-effective ceramic filter for the removal of bacteria in wastewater using locally sourced materials. Clay from several locations in Ekiti state, Nigeria was mixed with sawdust (combustible material) to form a ceramic filter. The results showed that the 50%-50% ratio of Igbara odo clay to sawdust was the most effective and optimum mix. This was in terms of a flow rate of 1.9 L/hour, removal effi-ciencies of 80% and 100% for coliform and E. coli bacteria respectively. Introduction Ceramic materials based on clay have been used in different parts of the world as a means of purifying and storing water at points of use. The application of ceramic filter isn't solely a brand new and trendy technique , but it reduces cost and the use of chemicals/coagulants in water treatment. The use of clay and sawdust from southwest Nigeria is worth researching upon for use as ceramic materials. Nigerian clay soils and sawdust had been used in previous studies for various waste containment purpose [1-3]. Methods Clay soils sampled from different locations (Ara, Igbara Odo, Ikere, Ire and Isan) in Ekiti State, Nigeria were pulverized and sieved through the 0.25 mm sieve size. Sawdust from a hardwood (Nesogordonia papaverifera of Danta Specie) was sieved through the 0.075 mm sieve size. The sieved samples of clay and sawdust were mixed in various ratios with water to form a mouldable paste. These were aged to cause physical changes in the material over time. The aged moulded paste materials firing process was carried out in a traditional kiln (made of low-cost heat resistant brick made of Ball clay, sand and sawdust) after an air drying stage had been completed. The air drying was to prevent material from cracking due to rapid drying or heating during the firing process. Atterberg limit tests [4] were carried out on the clay samples. The ceramic filters were tested for its flow rate and its bacteria removal efficiency. Results and conclusions The Atterberg limits values and colour of the Ekiti clay samples are listed in Table 1. The flow rates were measured based on the reduction in the water column height over a period of time (Table 2). The removal efficiency of Coliform and E. coli from the wastewater was 100% for some of the fabricated ceramic filter samples (Table 3). From the results, Igbara odo clay and sawdust in 50%:50% ratio had the highest performance level in terms of flow rate and bacteria removal efficiency.
Environmental and Sustainability Indicators, 2019
Population explosion coupled with poor governance and land use planning is responsible for indisc... more Population explosion coupled with poor governance and land use planning is responsible for indiscriminate dumping of solid waste in unsuitable sites. Despite the vast availability of modern methods of siting landfills, many waste disposal methods in Akure are piled up in open sites and unsafe. Owing to this lack of effectiveness of these common methods in Akure, a better approach is adopted to enable the analysis of a number of required qualitative and quantitative issues for landfill site selection. This study is aimed at identifying suitable sites for
solid waste disposal and management while considering all essential factors and rating criteria by integrating GIS with multi-criteria decision analysis (MCDA) in Akure, Ondo State. Standards for siting landfill formulated by the Environment Protection Agency (EPA) were employed in this study. The criteria that are considered herein are land use, slope, distance to drainage, distance to linear features, soil, geology, distance to the residence and road accessibility. These criteria were assigned fuzzy membership classes based on their importance in siting landfill. The fuzzy members of all criteria were overlaid to generate the final landfill site suitability map which was classified into five: not suitable (34.1%), less suitable (50.4%), moderately suitable (0.3%), suitable (0.02%) and highly suitable (15.5%). The Analytical Hierarchy Process (AHP) technique was employed in the selection of the landfill site with reverence to multiple criteria and the fuzzy membership classes in accordance with the standards of the EPA. The result of this study serves as guide for further field survey.
International Journal of Energy and Environmental Research (IJEER), 2015
The increased use of fossil fuels for energy consumption has causes environmental problems both l... more The increased use of fossil fuels for energy consumption has causes environmental problems both locally and globally. The study investigates the anaerobic digestion in the production of biogas a renewable energy from the digestion and co-digestion of three different types of biodegradable wastes (cow dung, fruit waste and food waste) as an alternative for fossil fuels for energy consumption. This was carried out using a 25 Litres capacity plastic keg prototype biogas plant, constructed to investigate the anaerobic digestion in generating biogas. The experiment was batch operated and daily gas yield from the plant was monitored for 30 days. The slurry temperature and pH were also monitored and presented. The digester was charged with these wastes in the ratio of 1:1, of waste to water respectively. The mesophilic temperatures range attained within the testing period were 25 - 28.4 and a slurry temperature range of 24.4 -28.4 . The result obtained from the biogas production showed that the co-digestion of cow dung and food waste produced the highest biogas of 164.8%, followed by the co-digestion of the three waste (cow dung, fruit waste and food waste) which has a percentage of 91.0%, co-digestion of cow dung and fruit waste (83.9%), cow dung of 79.8%, food waste of 77.4% and fruit waste of 76.4% within this retention period. During the digestion period, the volume of biogas production and the changes in pH indicate that the pH decreases as the retention period increases. These results showed that co-digestion wastes produce more biogas than when the wastes are ordinarily used for biogas production. The study recommends that biogas is not just a renewable energy source but also an appropriate way of managing waste, having potential to replace fossil fuel.
Conference Presentations by Temitope F . AJIBADE
SEET Conference FUTA
Mining plays a vital role in national economic development and on the contrary mining undesirably... more Mining plays a vital role in national economic development and on the contrary mining undesirably impact our environment. Mining has increased rapidly due to the development of large-scale mines. This technique of mining disturbs large areas of land and water which need to be restored. The environmental problems arising due to mining activities are natural land degradation, air and water pollution with heavy metals, organic and inorganic waste, negative impact on terrestrial and aquatic ecosystems, human health and socioeconomic. Possibly, the weightiest after effect of a mining is its effects on water resources. The impact of mining on surface and groundwater is due to spill erosion, sedimentation, acid mine drainage, lowering of water table, subsidence, disturbance on hydrological cycle and rainfall. Acid mine drainage is regarded one of mining's most serious threats to water resources. A mine with acid drainage has the capacity for long term damaging impacts on rivers, streams and aquatic life. This study is an appraisal of mining impacts on water resources.
This study assesses the recovery of cobalt present in spent or waste lithium-ion batteries throug... more This study assesses the recovery of cobalt present in spent or waste lithium-ion batteries through hydrometallurgical process as a measure of prevention towards environmental and health problems resulting from improper disposal of these batteries. Spent lithium-ion batteries of three different mobile phone brands (Samsung, Nokia and Blackberry) were collected and separated/dismantled into four components (Inner roll, casing, plastic and paper). Six samples labeled 1 to 6 were analyzed in all. These components were initially weighed before leaching the inner roll in a shaker water bath. The leaching temperatures used were 70, 80 and 90 o C and the leaching time, 60 and 120 minutes. The quantities of hydrochloric acid used were 123, 246 and 344 ml with varying quantities of distilled water. The pregnant solutions obtained from leaching were filtered in order to remove impurities. A mass of 5 g of sodium hydroxide mixed with 60 ml of water was then added to 40 ml of the filtered pregnant solution to precipitate cobalt and the precipitated solution was filtered. Atomic Absorption Spectrophotometer (AAS) was finally used to analyze 2 ml of the leaching solution, filtered-pregnant solution and filtrate obtained after precipitation were all mixed separately with 98 ml of distilled water in order to determine the quantities of cobalt present in the solutions. The results of the analyses showed that cobalt leached was between 95.00 – 409.00 PPM with equivalent percentage recovery of 98.02 – 99.98% which signifies abundant availability of the metal in spent lithium-ion batteries. This recovery process of heavy metals can therefore serve as an effective means of preventing environmental and health problems associated with waste batteries.
Proceeding of the 2017 Annual Conference of the School of Engineering and Engineering Technology (SEET), 2017
Currently, energy problems are faced all over the world, majorly African countries. One of the so... more Currently, energy problems are faced all over the world, majorly African countries. One of the solutions in the challenging energy situation is utilization of renewable energy. Even countries that are rich with fossil fuels have identified the necessity of developing alternative sources of energy. Nigeria is endowed with abundant natural renewable energy resources like the solar, wind, hydro, biomass (waste) etc. Renewable energy will be a pragmatic alternative to supplementing electricity supply in Nigeria. It can be cost-effective in areas far-flung from the national grid, and will impact Nigeria's electricity bottom line. However, the economy has mainly relied on the consumption of oil and gas for commercial energy. There is therefore a growing global concern about the future of non-renewable biomass in form of fossil fuel and its attendant consequences on the environment as evident in global warming. Moreover, there is an ever growing demand for energy. Biogas, a form of renewable energy can provide a clean, easily controlled source of renewable energy from organic waste materials for a small labour input, replacing firewood or fossil fuels which are becoming more expensive as supply falls behind demand. Thus, this paper centres on the past and present status of energy in Nigeria and Africa at large and potential of renewable energy from organic wastes citing several case studies.
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Papers by Temitope F . AJIBADE
pH, total organic matter, total organic carbon and particle size distribution. The results showed that samples were predominantly acidic (4.12 to 6.73), sandy (32.69 to 65.40) with values ranging from 0.17 to 4.14 and 0.02 to 3.15 for organic matter and organic carbon respectively. The mean values for both aerobic bacterial counts and heterotrophic fungal counts from control to the dumpsites ranged from 188 × 106 to 258 × 106 cfu/mL, and 128 × 106 to 193 × 106 cfu/mL, respectively. Although there exists some positive impacts of dumpings on soil, their adverse effects are life threatening.
solid waste disposal and management while considering all essential factors and rating criteria by integrating GIS with multi-criteria decision analysis (MCDA) in Akure, Ondo State. Standards for siting landfill formulated by the Environment Protection Agency (EPA) were employed in this study. The criteria that are considered herein are land use, slope, distance to drainage, distance to linear features, soil, geology, distance to the residence and road accessibility. These criteria were assigned fuzzy membership classes based on their importance in siting landfill. The fuzzy members of all criteria were overlaid to generate the final landfill site suitability map which was classified into five: not suitable (34.1%), less suitable (50.4%), moderately suitable (0.3%), suitable (0.02%) and highly suitable (15.5%). The Analytical Hierarchy Process (AHP) technique was employed in the selection of the landfill site with reverence to multiple criteria and the fuzzy membership classes in accordance with the standards of the EPA. The result of this study serves as guide for further field survey.
Conference Presentations by Temitope F . AJIBADE
pH, total organic matter, total organic carbon and particle size distribution. The results showed that samples were predominantly acidic (4.12 to 6.73), sandy (32.69 to 65.40) with values ranging from 0.17 to 4.14 and 0.02 to 3.15 for organic matter and organic carbon respectively. The mean values for both aerobic bacterial counts and heterotrophic fungal counts from control to the dumpsites ranged from 188 × 106 to 258 × 106 cfu/mL, and 128 × 106 to 193 × 106 cfu/mL, respectively. Although there exists some positive impacts of dumpings on soil, their adverse effects are life threatening.
solid waste disposal and management while considering all essential factors and rating criteria by integrating GIS with multi-criteria decision analysis (MCDA) in Akure, Ondo State. Standards for siting landfill formulated by the Environment Protection Agency (EPA) were employed in this study. The criteria that are considered herein are land use, slope, distance to drainage, distance to linear features, soil, geology, distance to the residence and road accessibility. These criteria were assigned fuzzy membership classes based on their importance in siting landfill. The fuzzy members of all criteria were overlaid to generate the final landfill site suitability map which was classified into five: not suitable (34.1%), less suitable (50.4%), moderately suitable (0.3%), suitable (0.02%) and highly suitable (15.5%). The Analytical Hierarchy Process (AHP) technique was employed in the selection of the landfill site with reverence to multiple criteria and the fuzzy membership classes in accordance with the standards of the EPA. The result of this study serves as guide for further field survey.