Viabilidade do tratamento de água residuária sintética têxtil em reator aeróbio de leito fixo

Rodrigues, Kelly; Vidal, Carla Bastos; Barbosa, Bárbara Chaves Aguiar; Pessoa-Wanderley, Carlos Ronald; Duarte, Iolanda Cristina Silveira; Marinho, Glória

doi:10.1590/s1413-41522010000100012

Cited by 5 publications

(4 citation statements)

References 18 publications

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“…Glucose addition is important to improve the efficiency of bioremediation of persistent compounds like dyes (YANG et al, 2008;RODRIGUES et al, 2010), phenols (RODRIGUES et al, 2007;SILVA et al, 2007) and pesticides (SAMPAIO, 2005;YANG et al, 2008). Singh (2006) reports that glucose addition produces substances of high reactivity, which react more easily with the pollutant.…”

Section: Dryophilusmentioning

confidence: 99%

Glucose effect on degradation kinetics of methyl parathion by filamentous fungi species Aspergilus Niger AN400

Rodrigues¹,

Araújo²,

Pinheiro³

et al. 2011

Eng. Sanit. Ambient.

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This study evaluated the glucose effect on the removal of methyl parathion by Aspergillus niger AN400. The study was conducted in two stages: toxicity tests on plates and assays in flasks, under an agitation of 200 rpm. The methyl parathion concentrations in the toxicity test ranged from 0.075 to 60 mg/L. The second stage consisted on evaluating reactors: six control reactors with methyl parathion solution; six reactors with fungi and methyl parathion, and six reactors containing fungi, methyl parathion, and glucose. The reaction times studied ranged from 1 to 27 days. Methyl parathion concentrations of up to 60 mg/L were not toxic for Aspergillus niger AN400. The first-order kinetic model served as a good representation of the methyl parathion conversion rate. The first-order kinetic constant was 0.063 ± 0.005 h -l for flasks without addition of glucose, while a value of 0.162 ± 0.014 h -l was obtained when glucose was added.Keywords: Aspergillus niger; biological reactors; glucose; methyl parathion; toxicity. ResumoEste estudo avaliou o efeito da glicose na remoção de metil paration por Aspergillus niger AN400. O estudo foi realizado em duas etapas: testes de toxicidade em placas e ensaios em batelada, sob agitação de 200 rpm. As concentrações de metil paration no ensaio de toxicidade variaram de 0,075 a 60 mg/L. A segunda etapa consistiu na avaliação dos reatores divididos em lotes: seis reatores controle, com solução de metil paration; seis reatores com fungos e paration metílico e seis reatores com fungos, paration metílico e glicose. Os tempos de reação estudados variaram de 1 a 27 dias. Concentrações de paration metílico de até 60 mg/L não foram tóxicas para Aspergillus niger AN400. O modelo de primeira ordem representou bem a cinética de degradação do metil paration. A constante cinética foi de 0,063 ± 0,005 h l para reatores sem adição de glicose, enquanto o valor de 0,162 ± 0,014 h l foi obtido quando a glicose foi adicionada.

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Section: Dryophilusmentioning

confidence: 99%

Glucose effect on degradation kinetics of methyl parathion by filamentous fungi species Aspergilus Niger AN400

Rodrigues¹,

Araújo²,

Pinheiro³

et al. 2011

Eng. Sanit. Ambient.

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“…Porém, determinar quimicamente os toxicantes presentes nesse tipo de resíduo é uma tarefa impraticável (RODRIGUÊS et al, 2010 A ozonização é considerada um dos mais promissores processos de oxidação, utilizada para remoção de cor e turbidez (ALMEIDA et al, 2004;COGO, 2011 …”

Section: Efluente Têxtilunclassified

Tratamento de efluente de indústria têxtil por reator biológico com leito móvel

Soler

Xavier

2015

Rev. Bras. Ciênc. Ambient. (Online)

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“…The textile wastewaters present low biodegradability and intense color, which are characteristics related to the dyes carried to the affluent of the treatment plants (Kaur et al, 2017;Rodrigues et al, 2010). These dyes cause harmful effects on the environment and human health, such as alteration of the water bodies coloration, which inhibits the photosynthesis, and the generation of carcinogenic and mutagenic by-products (Paz et al, 2017).…”

Section: Introductionmentioning

confidence: 99%