Evaluation of hierarchy of cyanotoxin removal by adsorption onto granular activated carbon

被引：0
|
作者：
Costa e Silva, Maria Natalia
de Oliveira, Rui [1 ]
Ovruski Ceballos, Beatriz Susana [1 ]
Guerra, Alaine Brito
de Aquino, Sergio Francisco [2 ]
Libanio, Marcelo [3 ]
机构：
[1] UEPB, Dept Engn Sanit & Ambiental, Campina Grande, PB, Brazil
[2] Univ Fed Ouro Preto, Dept Quim, Ouro Preto, MG, Brazil
[3] Univ Fed Minas Gerais, Dept Engn Hidraul & Recursos Hidricos, Belo Horizonte, MG, Brazil
来源：
ENGENHARIA SANITARIA E AMBIENTAL | 2017年 / 22卷 / 04期
关键词：
cyanotoxins; microcystin; saxitoxin; adsorption; granular activated; carbon; water treatment; WATER-TREATMENT PROCESSES; MICROCYSTIN-LR;
D O I：
10.1590/S1413-41522017158092
中图分类号：
TV21 [水资源调查与水利规划];
学科分类号：
081501 ;
摘要：
This study focused on the simultaneous removal of two cyanotoxins - microcystin-LR and saxitoxin-STX-by means of adsorption onto granular activated carbon. In first step, three carbons with different granulometry (dende coconut and mineral) were evaluated on adsorption of microcystin-LR in distilled and treated waters in concentrations at about 3.9 to 9.4 ug.L-1. The dende coconut carbon with lower granulometry showed higher performance according to the limits established by Brazilian Drinking Water Standards. In second step, with the selected carbon in previous step, concentrations of the two cyanotoxins 50% higher than those limits were dispersed in distilled water. The tests pointed out that only saxitoxin-STX removal was not affect by the presence both cyanotoxins.
引用
收藏
页码：691 / 697
页数：7
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