Macroalgae as lead trapping agents in industrial effluents - a factorial design analysis

Macroalgae as lead trapping agents in industrial effluents - a factorial design analysis

A two-level factorial design was employed to analyze the influence of agitation, contact time, amount of algae and type of pretreatment on heavy metal removal by Arribadas algae, in a batch system consisting of a synthetic solution simulating a typical effluent from battery manufacturing processes....

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Bibliographic Details
Published in:Journal of the Brazilian Chemical Society Vol. 12; no. 4; pp. 499 - 506
Main Authors: Duarte, Marta M. M. B., Silva, José E. da, Passavante, José Z. de O., Pimentel, M. Fernanda, Barros Neto, Benício de, Silva, Valdinete L. da
Format: Journal Article
Language:English
Published: Sociedade Brasileira de Química 01-08-2001
Subjects:
algae
CHEMISTRY, MULTIDISCIPLINARY
factorial design
iron
lead
zinc
factorial design
algae
iron
zinc
lead
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Summary:A two-level factorial design was employed to analyze the influence of agitation, contact time, amount of algae and type of pretreatment on heavy metal removal by Arribadas algae, in a batch system consisting of a synthetic solution simulating a typical effluent from battery manufacturing processes. Dried, ground and sieved 4 g algae samples were able to remove 99 % lead from 100 mL samples of synthetic effluent. Maximum removals for zinc and iron were 37 % and 80 %, respectively. Lead removal using this method is potentially useful for large-scale industrial applications, because Arribadas algae are cheap, abundant, naturally occurring waste materials.
ISSN:0103-5053
1678-4790
DOI:10.1590/S0103-50532001000400010