IOSR-JESTFT   Volume-2 ~ Issue-4 ~ Jan–Feb 2013

Abstract: A research on the impact of waste disposal site on groundwater resources was conducted around Aarada area, Ogbomosho, Oyo State, Nigeria using electrical resistivity (vertical electrical sounding) and hydro-physicochemical methods. This study was carried out to map the contamination patches at the subsurface and investigate the contamination level of the various hand dug wells situated in the area. A total of seven VES were carried out with length ranging between 80 to 130m. The hydro-physicochemical analysis was conducted at the peak of the wet season on nine water samples taken from nine different hand-dug wells in the research area. The result obtained from the interpreted VES data revealed leachate plumes at the subsurface in the study area. The outcome of the hydro-physicochemical method revealed hazardously high values of Fe2+, Pb2+, Zn2+, Cu2+ and NO3 - to further support the findings from the VES survey..
Keywords: Contaminants, Groundwater, Health Hazard, Hydro-Physicochemical Analysis, Leachate Plume, Vertical Electrical Sounding.

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waste –disposal site: a case study from Isparta, Turkey. Environmental Geology 2001: 40(6):725-731.
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Aquifer, Southeast, Iran. Journal of Spacial Hydrology. 3(1): 1-5
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Malaysia. Journal of Environmental Hydrology 2000: 8: 1-8

Abstract: Wind is one of the renewable resources in Zeway which is unexploited. This paper presents a number of issues related to the Assessment of wind energy resource based on 16 years long- term measured data of daily wind speed and direction, 3-hourly measured wind data at 10 m height, which are obtained from meteorological station and Analysis carried out By using Rayleigh stastical Analysis for wind data analysis and Matlab software used for data acquisition. This study indicates that Zeway, has energy potential available with the maximum and minimum average wind speed respectively, 4.9 m/s and 1.5 m/s and average wind power density also varies with maximum and minimum values respectively, 68.6 w/m2 and 0.0 w/m2 and the Results suggested that wind energy must be encouraged, promoted, invested, implemented, and demonstrated, but especially for small Wind farm.
Keywords: wind speed and direction, Rayleigh probability density, power density, wind speed probability curve, Zeway.

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Abstract: An extracellular beta amylase was induced in cultures of Bacillus subtilis isolated from the kolanut weevil, Balanogastris kolae grown in liquid medium that contained cocoyam starch as sole carbon source. The enzyme was partially purified by acid treatment with ice cold 1.0N HCl and gel filtration with Sephadex G 150. The enzyme had its optimal activity at pH 6.0 and exhibited maximal activity at temperature of 50oC. The activity of the enzyme was enhanced by Na+, while ethylene diaminetetraacetic acid (EDTA), Hg2+ and Ca2+ acted as mild inhibitors and Fe2+ was a strong inhibitor of its activity. The beta amylase had a molecular weight of 27.6 kDa and an apparent Michaelis constant Km of 4.6 mg/ml and maximum velocity (Vmax) of 47.62 U/mg proteins.
Keywords: cocoyam, starch, inhibitors, molecular weight, kolanut weevil

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Nigerian Journal of Microbiology 24(1), 2010, 1976-1982.
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Abstract: Historic wells (boudies) built by Adil Shahi dynasty in Bijapur, are huge sources of water in drought area, presently neglected and polluted.The two wells Taj boudi and Chand boudi were selected to study the depth wise water quality physio-chemical, phytoplankton, and bacteriological study. In Taj Boudi exceptional vertical inverse thermal stratification was observed and in Chand Boudi homothermal condition was noted. The input of medical wastes in Chand Boudi, led to the release of biochemical parameters like creatinine, protein, glucose, urea and uric acid with the increase of E-coli. As a result, floating meadow formed by the mud and plaster of paris (idol material) has the growth of macrophytes which are nourished by the organic biochemical compounds decomposed by the bacterial activity which acts as manure for the macrophytes. The selfpurification of water takes place naturally as quality condition. Chlorides, nitrogenous content and carbon dioxide in the wells are high indicating rich nutritional status. There is natural symmetry expressed in the wells in the seasonal changes to the bacterio plankton and phyto plankton of water. Algal maxima were observed soon after which bacteria were in excess in Chand Boudi.
Keywords: Boudies, Natural Symmetry, Physico chemical, Phyto plankton, Thermal stratification

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Abstract: The River Niger serves a multitude of purposes for the Nigerian populace. It is a source of drinking water, hydro-electric power generation, irrigation, transportation and fishing other uses. A segment of the lower Niger River was surveyed for physico-chemical characteristics of water and phytoplankton abundance during two (2) months of dry season and two (2) months of wet season using standard methods. In the five sampling stations surveyed, Surface Water Temperature, Turbidity, Dissolved Oxygen, PO4-P and pH did not statistically significantly vary between the stations (P>0.05), whereas BOD and NO3-N varied statistically significantly between the stations (P<0.05). Phytoplankton abundance showed the following order of abundance: Bacillariophyta > Cholorophyta > Cyanophyta > Chrysophyta > Pyrrophyta. Based on Shannon- Weiner diversity index, the water in the 5 stations surveyed is classified to be moderately polluted. The results of this survey has shown that the multitude of users of the Lower Niger River have negatively impacted its water quality.
Keywords: River Niger, Water Quality, Phytoplankton

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Abstract: Recently, environmental pollution was introduced as a contributing factor in decreasing male fecundity via deterioration of semen quality. Our study aimed to compare serum and seminal plasma levels of lead and cadmium in rural versus urban infertile men from Assiut governorate and also, to detect the correlations of these heavy metals with conventional semen parameters and sperm vitality. Methodology Seventy five infertile male patients from rural areas and 84 from urban areas in Assiut governorate were included in the study. Lead and cadmium levels in serum and seminal plasma, conventional semen analysis and sperm vitality with hypo-osmotic swelling test (HOS) were evaluated in all patients. Results: There was a significant increase in both serum and seminal concentrations of lead and cadmium among infertile men from urban areas in comparison to those from rural areas. No statistically significant difference could be detected in semen parameters between the 2 groups. There were significant negative correlations between serum and seminal concentrations of lead and cadmium on one hand and normal sperm morphology, progressive motility and vitality (HOS) percentages on the other hand. Conclusions: Infertile men from urban areas are more subject to hazardous environmental toxicants as heavy metals which may help in diagnosis of the unexplained male infertility and necessitates special attention in management of those subjects attending infertility clinics and belonging to urban areas.
Keywords: cadmium, heavy metals infertility, lead, semen.

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Abstract: The aim of this paper was to evaluate the effects of surface and subsurface drip irrigation buried at 0, 15 and 30 cm depths respectively (T0, T1 and T2) on water's dynamic in soil and irrigation water use efficiency to produce cucumber (Cucumis sativus L.) in Mediterranean climate. Field study was conducted at the Higher Institute of Agronomy of Chott Meriem, Tunisia from April to June 2011. The results showed that soil water's stock under T1 was more important and uniform compared to T0 and T2. In contrast, irrigation water use efficiency was higher in T2. Indeed, it increased about 20 and 13 % respectively when compared to T1 and T0. The results of the present study showed that SDI allows uniform soil moisture, minimize the evaporative loss and delivery water directly to the plant root zone and consequently increases use efficiency.
Keywords: subsurface drip irrigation, water use efficiency, Cucumis sativus L., soil water's stock, root length density, yield.

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Abstract: Most of the water resources have been utilized for the disposal of municipal and industrial wastes. To address the non-linearity, subjectivity, transfer and transformation rule of the pollutants and complexity of the cause-effect relationships between water quality variables and water quality status, development and use of water quality model is of utmost importance. Owing to the random discharge of point pollution from various sources has not only rendered such water bodies eutrophic but also their advantageous uses such as water supply, irrigation, recharge of ground water, recreation and habitat for flora and fauna have been adversely affected. Oxygen- demanding substances are major contaminants in domestic and municipal wastewater. The main indicators of river pollution which deals with the oxygen domestic conditions of the river are Biochemical oxygen demand (BOD) and dissolved oxygen (DO). The Multi-layer Perceptron (MLP) neural network techniques was used to estimate for the analysis of point source pollution in terms of BOD and DO concentration and the neural network model is developed using the data collected from the upstream and downstream stations on Mahanadi river system lying in Odisha. The accuracy performance of training, validation and prediction of seasonal water quality parameters has been tested. To test the validity of ANN model, correlation coefficient (R) statistical model was used.
Keywords: Pollution; BOD; DO; ANN; Correlation Coefficient.

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