Monitoring and removal of cyanobacterial toxins from drinking water by algal-activated carbon.
Toxicol Ind Health
; 32(10): 1752-62, 2016 Oct.
Article
em En
| MEDLINE
| ID: mdl-25964240
ABSTRACT
Microcystins (MCs) are the most potent toxins that can be produced by cyanobacteria in drinking water supplies. This study investigated the abundance of toxin-producing algae in 11 drinking water treatment plants (DWTPs). A total of 26 different algal taxa were identified in treated water, from which 12% were blue green, 29% were green, and 59% were diatoms. MC levels maintained strong positive correlations with number of cyanophycean cells in raw and treated water of different DWTPs. Furthermore, the efficiency of various algal-based adsorbent columns used for the removal of these toxins was evaluated. The MCs was adsorbed in the following order mixed algal-activated carbon (AAC) ≥ individual AAC > mixed algal powder > individual algal powder. The results showed that the AAC had the highest efficient columns capable of removing 100% dissolved MCs from drinking water samples, thereby offering an economically feasible technology for efficient removal and recovery of MCs in DWTPs.
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Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
2_ODS3
Base de dados:
MEDLINE
Assunto principal:
Toxinas Bacterianas
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Poluentes da Água
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Água Potável
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Carbono
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Purificação da Água
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Microcistinas
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Toxinas Marinhas
Idioma:
En
Revista:
Toxicol Ind Health
Ano de publicação:
2016
Tipo de documento:
Article