Abstract
Abstract The aims of this research was to study accumulation rate of Pb in both King Cat Fishes (Clarias gariepenus) and waterhyacinth (Eichornia crassipes), so was decreasing rate of Pb in waste water of pulp and paper industry. This research was experimental laboratorism. Eighteenth glass wessel were filled 10 litres the mixture of pulp and paper waste water and fresh water whereas 40% volume of pulp and paper waste water. The result sowed that Pb heavy metal content in both King Cat Fishes and waterhyacinths increased by time treatment. Pb content in head of fishes was greater by aeration than that in body of fishes without aeration. Pb content in waterhyacinths was greater by aeration than that without aeration. Pb content in waste water decreased by time treatment. The decreasing rate of Pb in waste water was greater by aeratin than that without aeration. Key words : Uptake Pb, waste water, pulp and paper industry, King Cat Fish, waterhyacinth
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