2007
DOI: 10.1016/j.watres.2006.10.022
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Biocalalyst effects of immobilized anthraquinone on the anaerobic reduction of azo dyes by the salt-tolerant bacteria

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Cited by 137 publications
(89 citation statements)
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“…[4] The electrochemical measurements were performed using a Voltalab Powersuite/LK98BII (Tianjin Lanlike Electronics Technology Ltd., China) and controlled using the PowerSuite electrochemistry software (Tianjin Lanlike Electronics Technology Ltd., China). The glassy carbon electrode was successively polished using 5-, 1-, 0.3-and 0.05-mm diamond polishes and rinsed with 8 mol L ¡1 nitric acid and distilled water before use.…”
Section: Electrochemical Measurementsmentioning
confidence: 99%
“…[4] The electrochemical measurements were performed using a Voltalab Powersuite/LK98BII (Tianjin Lanlike Electronics Technology Ltd., China) and controlled using the PowerSuite electrochemistry software (Tianjin Lanlike Electronics Technology Ltd., China). The glassy carbon electrode was successively polished using 5-, 1-, 0.3-and 0.05-mm diamond polishes and rinsed with 8 mol L ¡1 nitric acid and distilled water before use.…”
Section: Electrochemical Measurementsmentioning
confidence: 99%
“…As we know, quinones can accelerate the anaerobic conversion of perchlorate, arsenate, nitrate, nitrite, nitrous oxide and azo dyes as electron donors (ArandaTamaura et al 2007;Lovley et al 1999;Guo et al 2007Guo et al , 2010aVan der Zee and Cervantes 2009). Recently, the simultaneous conversion of sulphide and nitrate in a denitrifying culture was reported to be enhanced with different dissolved redox mediators (Aranda-Tamaura et al 2007), but continuous dosing of the dissolved redox mediators implies continuous expenses and continuous discharge of this biologically recalcitrant compound.…”
Section: Introductionmentioning
confidence: 99%
“…Recently, the simultaneous conversion of sulphide and nitrate in a denitrifying culture was reported to be enhanced with different dissolved redox mediators (Aranda-Tamaura et al 2007), but continuous dosing of the dissolved redox mediators implies continuous expenses and continuous discharge of this biologically recalcitrant compound. And the catalyzing effect of novel non-dissolved redox mediator catalyzing biological denitrification (RMBDN) was first explored simplify (Guo et al 2010a, b), and the activity retained over 90% of their original value after four repeated experiment (Guo et al 2007). However, the RMBDN technology has to be conducted in detail for the accelerating mechanism and effects.…”
Section: Introductionmentioning
confidence: 99%
“…4 Muitas técnicas, tanto físicas, químicas e biológicas ou uma combinação destes processos, têm sido utilizadas para descoloração, sendo que os processos biológicos são mais frequentes, por serem mais atrativos economicamente. 5 A remoção de cor de corantes azo é resultado da quebra da ligação azo, sendo o corante um aceptor final de elétrons. Como o oxigênio é um melhor aceptor de elétrons do que os corantes, processos biológi-cos aeróbios de remoção de cor por bactérias tendem a ser de baixa eficiência de remoção de cor.…”
Section: Introductionunclassified
“…6,16 Os custos oriundos da dosagem de mediadores redox, mesmo estes sendo normalmente utilizados na concentração de mg/L, poderiam ser diminuídos enormemente com a imobilização destes nos reatores biológicos, por exemplo, utilizando-se as quinonas presentes no carvão ativado, ou mesmo no uso de nanoestruturas ou esferas de alginato para imobilização destes compostos. 11,[17][18][19] A presença e disponibilidade de um cossubstrato, que funcionará como doador de elétrons na reação de descoloração, são importantes condições para boa capacidade de remoção de cor em bioreatores operados sob condições anaeróbias. 10 Adicionalmente, as condições operacionais como pH, temperatura e concentração do corante também afetam as taxas de descoloração.…”
Section: Introductionunclassified