Oxidation of Microcystis aeruginosa and Anabaena flos-aquae by ozone: Impacts on cell integrity and chlorination by-product formation

2013 ◽  
Vol 47 (9) ◽  
pp. 2983-2994 ◽  
Author(s):  
Lucila A. Coral ◽  
Arash Zamyadi ◽  
Benoit Barbeau ◽  
Fatima J. Bassetti ◽  
Flávio R. Lapolli ◽  
...  
Keyword(s):  
Microcystis Aeruginosa ◽  
Product Formation ◽  
Cell Integrity

Effect of Microcystis aeruginosa on Disinfection By-Product Formation During Chlorination of Chironomid larvae Metabolites

2016 ◽  
Vol 33 (9) ◽  
pp. 681-687 ◽  
Author(s):  
Shu-song Zhang ◽  
Yan-fang Ni ◽  
Yi-feng Jiang ◽  
Bi-yao Song ◽  
Xing-bin Sun
Keyword(s):  
Microcystis Aeruginosa ◽  
Product Formation ◽  
Chironomid Larvae

Evaluation of trihalomethane formation in treatment of water containing Microcystis aeruginosa using chitosan as coagulant

2013 ◽  
Vol 13 (4) ◽  
pp. 1167-1173 ◽  
Author(s):  
B. C. Capelete ◽  
C. C. S. Brandão
Keyword(s):  
Chlorophyll A ◽  
Microcystis Aeruginosa ◽  
Lake Water ◽  
Aluminum Sulfate ◽  
Product Formation ◽  
Effective Removal ◽  
Apparent Color ◽  
Chlorine Oxidation

There are few studies that evaluate the application of chitosan in the treatment of eutrophic waters and its contribution to disinfection by-product formation. Thus, this study evaluated the use of chitosan as coagulant in the treatment of lake water spiked, or not, with Microcystis aeruginosa cells, as well as the formation of trihalomethanes (THM) by chlorine oxidation. Coagulant doses were from 0 to 9 mg/L of chitosan, and from 0 to 18 mg/L of aluminum sulfate (Al2(SO4)3), used as a comparative base. The THM formation was measured in filtered water after 48 hours of oxidation. The results showed that chitosan can provide effective removal of turbidity, apparent color, absorbance at 254 nm and chlorophyll a (M. aeruginosa cells), presenting better results than aluminum sulfate. No THM were detected after oxidation with chlorine, regardless of the coagulant used, suggesting that the use of chitosan as coagulant, for the studied waters, did not contribute to THM formation.

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