The study assessed the environmental health problems of internally displaced persons in Maiduguri camps. The study covered three selected IDPs camps in Maiduguri. The objective of the study was to determine the condition of Internally Displaced Persons (IDPs) camps in Maiduguri on sanitation, overcrowding and the physical structures. Survey research design was adopted in conducting the research with a target population of 23,432 and sample size of 377. Data was collected from adult respondents using purposive sampling technique and a total of 377 copies of questionnaire was administered to the adult Internally Displaced Persons (IDPs) of the three selected camp; 350 (92.8%) copies were retrieved and found valid for analysis. Data collected was analyzed using descriptive statistics of frequency distribution and percentage counts. The result revealed that a majority of the respondents strongly disagreed that the sanitary, overcrowding and the condition of physical structures of the Internally Displaced Persons (IDPs) camps in Maiduguri, Borno State was satisfactory. Thus, the study recommends the involvement of Borno State Environmental Protection Agency (BOSEPA) in waste management within the camps. It also recommends that Government and Non-governmental organizations (NGOs) should implement policies and programmes that will enhance environmental health awareness for IDP’s based on their gender and age.
Unactivated adsorbent was prepared from Moringa oleifera seed shells precursor, characterized and evaluated for aqueous phase removal of phenol. The effects of operational parameters such as initial phenolic solution pH and adsorbent dosage on equilibrium sorption were studied. Adsorption isotherms and kinetic experiments performed at (25 oC) furnished some equilibrium and kinetic parameters, respectively. UAMSS shows favorable attributes on (pH, bulk density, attrition, iodine number/surface area, surface charge/functional groups and Fourier transform infrared FTIR). Phenol uptake decreases with increase in solution pH for the adsorbent. Maximum adsorption capacity Qmax (mg/g) was (6.95). The optimal pH for phenol adsorption was attained at pH 3, adsorption kinetics obeyed closely pseudo-second-order model. Adsorption of phenol was well described by Langmuir isotherm. The adsorbent shows a promise of applicability in dephenolation of aqueous effluents/wastewater.
This study aims at determining the concentration of heavy metal contaminants in the soil around Dangote cement factory Kogi State, Nigeria. It also seeks to understand the relationship between the heavy metals and the level of concentration with respect to distance and direction as well as the ecological risk it poses. The monitoring and assessment of soil pollution have over the years become a very important area of study due to the significant threat it poses to the food web. A total of 33 soil samples were collected in the Northern, Eastern and Western axis within a radius of 4km of Dangote cement factory at a depth of 0-15cm using a stainless steel auger. The contamination factor indices for Cr and Cu show moderate pollution across all the samples collected from different axis at a different distance from the factory. Zn also pose a moderate pollution across the samples except for WK4 and NK4 where it is in a low level of contamination. The geo-accumulation indices for Pb and Cr show unpolluted to moderately polluted across all samples at different locations expect for sample location EK4. The results of the ecological risk assessment revealed that Cd poses the highest ecological risk of all the five heavy metals investigated.
Local clay deposits from Ukpor in Nnewi South Local Government Area of Anambra State were characterized for its potential applications in the production of ceramics whitewares. XRF analysis of the clay revealed that it has high silica and alumina contents with some flux oxides. XRD analysis also revealed that of all the minerals present in the clay, quartz has the highest constituent followed by kaolinite and rutile. FT-IR analysis revealed that the bands corresponds to 3500 cm-1 to 4000 cm-1 indicating the presence hydroxyl groups (OH) and Si-O symmetry vibration stretch at 1206.207 cm-1 which confirmed the kaolinite structure of the clay. The SEM study showed a finely distributed uniform surface with isolated patches of granulated texture which explained the physical behaviour of the clay. The EDS spectrum of the formulated fired Ukpor clay indicated the presence of O, Al, K, Ca, K, Fe, and Si. The study revealed that an increase in the firing temperature and feldspar contents of the clay increases its bulk density, while the apparent density decreases with increase in temperature. Apparent porosity showed that there was a decrease from 25% to 3%, and the water absorption increases with increase in the silica content and decreases with temperature and feldspar increase. The shrinkage increases with the increase in temperature. The results concluded that the clay sample could be utilized as an industrial raw materials for the production of ceramic whitewares.
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