The concentration of lead (PB) in industrial effluent, soil, PB adsorption by soil and its uptake by maize
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Date
1995
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Sokoine University of Agriculture
Abstract
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.
Description
Keywords
Industrial effluent, Adsorption soil