2006
DOI: 10.1021/ie060164+
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Combining Adsorption and Coagulation for the Treatment of Azo and Anthraquinone Dyes from Aqueous Solution

Abstract: The combined process of coagulation and adsorption was studied for the treatment of reactive dye wastewaters. Ferric chloride and organozeolite modified with CTAB were chosen as the coagulant and adsorbent, respectively. Reactive dyes, namely, Reactive Blue 4 (RB4) and Reactive Yellow (RY), were used as representatives of anthraquinone and azo textile dyes. A series of jar-test and batch experiments were conducted to determine the optimum conditions. According to individual dye removal efficiencies, coagulatio… Show more

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Cited by 42 publications
(29 citation statements)
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“…Reactive dyes are those that have functional groups such as azo, anthraquinone and oxazine. These functional groups react with the fibres of the material to be dyed [8]. Azo dyes constitute nearly 60 % of all the reactive dyes, most of which are used in the textile industry for their color.…”
Section: Introductionmentioning
confidence: 99%
“…Reactive dyes are those that have functional groups such as azo, anthraquinone and oxazine. These functional groups react with the fibres of the material to be dyed [8]. Azo dyes constitute nearly 60 % of all the reactive dyes, most of which are used in the textile industry for their color.…”
Section: Introductionmentioning
confidence: 99%
“…The presence of these substances in the environment is worrisome, since they have carcinogenic, teratogenic and toxic properties (especially the azo dyes), they diminish the penetration of light through the water column and although it is not so relevant, they also affect aesthetically to nature (Houas et al, 2001;Karadag et al, 2006;Dafnopatidou et al, 2007).…”
Section: Introductionmentioning
confidence: 99%
“…As técnicas mais utilizadas para descoloração envolvem processos físico-químicos, principalmente mecanismos de adsorção, coagulação e precipitação, ultrafiltração, processos biológicos, além de processos oxidativos avançados (Papic et al, 2000;Karadag et al, 2006;Mohorcic et al, 2006; Bielska and Prochaska, 2007;Foletto et al, 2010). Alguns desses métodos geralmente são combinados, de forma a aumentar a eficiência do processo.…”
Section: Introductionunclassified