Browsing by Author "Ogbonnaya, Nneka Genevieve"

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    Effects of abattoir effluent on Iyiokwu River quality Abakaliki, Ebonyi State
    (Federal University of Technology, Owerri, 2020) Ogbonnaya, Nneka Genevieve
    The study was conducted at Abakaliki, the capital city of Ebonyi state which aimed at assessing the effect of abattoir effluent on Iyiokwu River in Garki mini market. The analysis was done at the beginning of rainy season (April, 2017). In order to achieve the set objectives, five sampling locations were chosen; they are: WQ50, WQ0, WQ100, WQ150 and WQ200 respectively. Some parameters were selected based on their relative importance to abattoir effluent composition and analyzed for Physicochemical and Microbiological characteristics. These parameters were: Colour (pcu), Odour, Temperature(0C), Turbidity(NTU), Conductivity(µs/cm), Total solid(mg/l), Total dissolved solid(mg/l), Total suspended solid(mg/l), pH, CL- (mg/l), S04 -2 (mg/l), P04 -3 (mg/l), P(mg/l), Ca+ (mg/l), Mg+ (mg/l), CaC03 (mg/l), N0-3 (mg/l), N0- 3N, Total Organic Carbon(%), NH3(mg/l), NH3 -N(mg/l), Pb (mg/l), Cu (mg/l), Ni(mg/l), As(mg/l), Fe(mg/l),Total Heterotrophic Bacteria Count (cfu), Total Salmonella Shigella count (cfu), Total Coliform Count (cfu), Total Heterotrophic Fungal Count (cfu) and Total Ecoli Count (cfu). The measurement location WQ0 which is the point of discharge has the highest concentration of most of the parameters ranging from temperature as a physical characteristic, to chemical oxygen demand as a chemical characteristic and then to total coliform count as a biological characteristic. There was a gradual decrease in the concentration of the parameters from sample point WQ0 downstream although this may be as a result of dispersion along the river flow path. At measurement location WQ200 there was a sudden and sharp increase in some tested parameters such as S03, Ni, N0- 3, and N0- 3N. This may be because of the waste dump site that runs off into Iyiokwu River at this particular point. The tested result showed a statistical significant difference (P < 0.05) when Turbidity, Conductivity, TDS, TSS, Colour, Temperature, pH, Sulphate, Phosphate, Calcium, Magnesium, DO, E. coli, THFC, THBC, TSSC and TCC measurements at the discharge point (WQ0) were compared with the measurement at the control point (WQ50) and also with the WHO permissible limit. It is recommended that abattoir waste be segregated before discharging into the stream and advised that discharge point be avoided as it may be a source of domestic water supply for others downstream. The liquid waste can be a source of biogas while the solid waste can serve as manure.