Analysis of the chlorine consumption for oxidation of the cyanobacteria species Microcystis aeruginosa

This study evaluated the chlorine consumption of the Microcystis aeruginosa species present in blooms in water supply sources, since the legislation requires the minimum maintenance of free residual chlorine should be 0.2 mg.L-1 or 2 mg.L-1 of combined residual chlorine and a residue from 3 to 5 mg....

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Bibliographic Details
Authors: Camargo, Júlia Araújo, Franco, Elton Santos, Marques, Izabel Cristina, Júnior, Israel César Santana, Silva, Paulo Henrique Gomes, Aguilar, Núbia Aparecida de, Ferreira, Ana Flávia de Assis, Borges, Bruno Miranda, Sousa, Ana Luiza Ramalho de
Format: article
Status:Published version
Publication Date:2018
Country:Brasil
Institution:Centro Federal de Educação Tecnológica de Campos dos Goytacazes
Repository:Vértices (Campos dos Goitacazes. Online)
Language:Portuguese
OAI Identifier:oai:ojs.editoraessentia.iff.edu.br:article/11646
Online Access:https://editoraessentia.iff.edu.br/index.php/vertices/article/view/11646
Access Level:Open access
Keyword:Chlorine consumption
Microcystis aeruginosa
Chlorine gas
Colorimetric method
Consumo de cloro
Cloro gaseoso
Método colorimétrico
Cloro gasoso
Description
Summary:This study evaluated the chlorine consumption of the Microcystis aeruginosa species present in blooms in water supply sources, since the legislation requires the minimum maintenance of free residual chlorine should be 0.2 mg.L-1 or 2 mg.L-1 of combined residual chlorine and a residue from 3 to 5 mg.L-1 after 7 days. Chlorine gas analyzes were performed in laboratory scale: 8 dosages for 30 minutes and 24 hours tests and 7 dosages for 7 days. The results showed high chlorine consumption, what can be related to by-products formation of chlorination in the water treatment.