Browsing by Author "Assey, Joan Pius"

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    The concentration of lead (PB) in industrial effluent, soil, PB adsorption by soil and its uptake by maize
    (Sokoine University of Agriculture, 1995) Assey, Joan Pius
    Evaluation of Pb concentrations of the industrial effluent, soil and plant leaves in the vicinity of a Pb- battery industry in Dar es Salaam was studied. Adsorption of Pb by an Oxic Haplustult and its uptake by maize were also studied. Effluent, soil and plant leaves from the Pb-battery industrial compound were found to contain Pb levels of up to 8.97 x 105 pig Pb/g, 1.28 x 104 pig Pb/g and 2.34 x 103 Pb/g respectively, indicating high pollution of the industry premises with Pb, hence a health hazard. .The Pb adsorption isotherm for the Oxic Haplustult was of L-type curve indicating a high affinity for Pb. The adsorption of Pb by an Oxic Haplustult conformed to both Langmuir and Freundlich adsorption plots. The value of b in the Langmuir equation was 1128.7 affinity of Pb. The binding energy Mg/g indicating high (K) for the Langmuir equation was 2.38 ml/gg and the values of the constants n and K for the Freundlich equation were 1.52 respectively.