Analysis of the chlorine consumption for oxidation of the cyanobacteria species Microcystis aeruginosa
DOI:
https://doi.org/10.19180/1809-2667.v20n22018p213-223Keywords:
Chlorine consumption, Microcystis aeruginosa, Chlorine gas, Colorimetric methodAbstract
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.Downloads
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