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Kelechi Uche
Department of Biochemistry, Federal University of Technology Owerri, Nigeria.
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Impact Of Discharge Fertilizer Effluents On The Toxicological Profile Of Fish Harvested From A Receiving Creek In Okirika, Rivers State. Kalu Igwe; Kelechi Uche; Uchechi Obasi
Waste Technology Vol 4, No 2 (2016)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (141.274 KB) | DOI: 10.14710/4.2.15-17

Abstract

The impact of fertilizer effluent discharge on toxicological profile of fish was studied by harvesting fish from Okrika creek which receives treated fertilizer effluent and analysing same for heavy metal (Lead Pb, Nickel Ni, Zinc Z and Copper Cu); Polycyclic Aromatic Hydrocarbon (PAH) and Total Petroleum Hydrocarbon (TPH) concentrations. Similar fish was harvested from Otamiri River which is far from any industrial activity and used as control. Heavy metals were analysed using Atomic Absorption Spectrophotometer while the PAH and TPH were analysed using Gas Chromatography. Result indicated unacceptable high values in most of the studied parameters with significantly higher (P<0.05) values; Pb (8.10±0.02 mg/kg), Ni (1.24±0.12 mg/kg), Zn (22.82±0.13 mg/kg), Cu (2.79±0.16 mg/kg), TPH (1.24±0.01 mg/kg). PAH indicated no significant difference (P>0.05) with value 0.003±0.01 mg/kg. Result indicates an unacceptable high level of these metals in the fish tissue   which is of great concern to consumers and could reflect the level of pollutant in the effluent. The company is thus advised to treat their effluents properly and government ensures compliance.
CHARACTERISATION OF BIODIESEL PRODUCED USING DOMESTIC WASTE ASH AS CATALYST IN THE TRANSESTERIFICATION STAGE Kelechi Uche; Ngwu Nwachukwu; Chinwe Alisi; C Ibegbulem
Waste Technology Vol 4, No 1 (2016)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (316.082 KB) | DOI: 10.14710/4.1.36-39

Abstract

Domestic wastes ash of unripe plantain peels, palm fruit husks and kola nut pods were used in place of inorganic potassium and sodium in biodiesel production. Analysis of fuel parameters such as Density, Viscosity, Cloud, Pour and Flash points were carried out on the produced biodiesel using the American Standard for Testing Materials ASTM D6751. Quantitative analysis with Atomic Absorption Spectroscopy was done to determine the presence of metals on the 3 ash samples. The result of fuel parameters of Density (mm2/s), Viscosity (mm2/s), Cloud (˚C), Pour (˚C) and Flash (˚C) points gave 0.890±0.007, 5.046±0, 9.0±0.28, 6.5±0.35, 168±1.41 respectively for unripe plantain sample; 0.890±0.01, 5.196±0.00, 9.0±0.56, 6.0±0.14, 168±8.48 for palm fruit husk; 0.895±0.01, 5.912±0.00, 10.25±0.14, 8.0±0.70, 172±2.82 for kola nut pods and 0.886±0.00, 4.813±0.01, 6±0.28, 3±0.00, 165±2.12 for the control sample. Quantitative analysis of the ash samples for metals showed the presence of these metals in the following order K > Na > Pb, Na > K >Pb, K > Na >Pb respectively. The samples studied were found to be rich sources of alkali which can be utilized as alternative to conventional alkali in industries.
Co-Authors C Ibegbulem Chinwe Alisi Kalu Igwe Ngwu Nwachukwu Uchechi Obasi