Decolorization and Degradation of Reactive Dye in Aqueous Solution by Ozonation in a Semi-batch Bubble Column Reactor

Turhan, Kadir; Öztürkcan, S. Arda

doi:10.1007/s11270-012-1353-8

Cited by 53 publications

(40 citation statements)

References 40 publications

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“…The k app values for both dyes in binary solutions were also calculated according to Eq. (8) and were to be 0.0469 and 0.0198 min −1 for MG and TYG, respectively. It can be seen that photolytic decoloration of individual dye in binary solution is slower than that in single solution under comparable conditions.…”

Section: Kinetics Of Photolytic Decolorationmentioning

confidence: 96%

“…There are various types of AOPs which are widely used; these include the UV photolytic technique [5], Fenton process [6], photo-Fenton process [ ozonation process [8], sonolysis [9], photocatalytic approach [10], and radiation-induced technique [11]. Many researchers have also successfully used the enzyme-based approaches for dye degradation [12].…”

Section: Introductionmentioning

confidence: 99%

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Comparative degradation studies of Malachite Green and Thiazole Yellow G and their binary mixture using UV/H₂O₂

Rauf

Ali

Sadig

et al. 2015

Desalination and Water Treatment

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A B S T R A C TWastewater effluents of many industries are usually composed of dye mixtures and their removal poses a significant challenge. The present study reports on the use of an advanced oxidation process namely UV/H 2 O 2 to degrade Malachite Green (MG) (k = 0.0518 min −1 ) and Thiazole Yellow G (TYG) (k = 0.0367 min −1 ), and their binary mixture in aqueous solutions. Interestingly, it was seen that the photolytic degradation of dyes in binary solution was slower (by 10% for MG and by 46% for TYG) than that in neat solutions under comparable conditions. The total organic carbon analysis (TOC) was also carried out in both the neat dyes (38.5% decrease for MG and 13% decrease for TYG), and in mixture the TOC change was 40%. HPLC analyses confirmed the formation of intermediates in both individual dye solutions, which were however not seen in binary mixtures. The present work shows that dye mixtures behave very differently than neat dyes, and highlights the importance of studying complex dye mixtures and the possible deleterious interactions between dye intermediates during the remediation process.

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Section: Kinetics Of Photolytic Decolorationmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Comparative degradation studies of Malachite Green and Thiazole Yellow G and their binary mixture using UV/H₂O₂

Rauf

Ali

Sadig

et al. 2015

Desalination and Water Treatment

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“…It has been reported that formation of oxidation by-products is common when applying O 3 , and combination with UV might be needed to avoid this effect (Turhan and Ozturkcan 2013). On the other hand, the O 2 consumption peaks reached in the initial stages of the biological treatment of the effluent generated by pH adj /O 3 and pH adj /O 3 /UV treatments indicate the potential use of these treatment configurations before sending cleaning wastewaters to MWWTP, since a substantial part of the pollutants in the wastewater could be readily available for microorganisms.…”

Section: Respirometric Studymentioning

confidence: 99%

Advanced Oxidation Treatment of Recalcitrant Wastewater from a Wood-Based Industry: a Comparative Study of O3 and O3/UV

Hansson

Kaczala

Amaro

et al. 2015

Water Air Soil Pollut

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Ozone and ozone-based advanced oxidation processes were applied for the treatment of a recalcitrant wastewater generated by wood-based industries that contains different inorganic and organic constituents and high chemical oxygen demand (COD) varying between 3,400 and 4,000 mg/L. The investigation used a tubular ozone reactor combined with an UV reactor designed for different hydraulic retention times. The dependent variables addressed to evaluate the treatment efficiency were the reduction of COD and total organic carbon (TOC) and the biodegradability of the treated effluent based on respirometric studies using activated sludge from a wastewater treatment. The results showed that even though ozonation alone at acid pH promoted COD and TOC reductions of 65 and 31 % respectively, a decrease in the biodegradability was observed. The most effective treatment (COD and TOC reductions of 93 and 43 %, respectively) was obtained when applying ozone combined with UV light at basic pH. The ozone-UV combination was capable of increasing the amount of readily available COD by 75 % with an additional reduction of TOC by 60 %. In conclusion, ozonation at low pH effectively reduces the COD content in wastewater generated by the wood-based industry; however, in order to combine advanced oxidation with biological process, ozone combined with UV is recommended.

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“…Successful decolorisation of reactive dyes by ozone treatment has been reported in the literature [17,[20][21][22][23]. Furthermore, Eren et al [24] reported a successful study on colour discharge of reactive dyed cotton by ozone.…”

Section: Introductionmentioning

confidence: 99%

Ozone utilisation for discharge printing of reactive dyed cotton

Yiğit

Eren

2017

Coloration Technology

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Environmental pollution is one of the major concerns of the textile finishing sector. The reduction or substitution of the harsh chemicals used during dyeing and printing processes is necessary. In this study, the use of ozone for the discharge printing process was examined in order to substitute the use of reductive agent and caustic soda by ozone gas. The reactive dyed cotton samples were wetted by water and some selected solutions at 25%, 40% and 60% pick up were used and subjected to ozone gas treatment. The gas flow rates were 5 and 10 l/min for 5 and 10 min treatment times, respectively. The results were compared with that of conventional discharge printed samples. Colour discharge (%), colour difference (DE), strength, washing and rubbing fastness and chemical oxygen demand (COD) values were compared and reported. Colour discharge increased at higher gas flow rates and prolonged treatment times. Although ozone printing could not attain the contour sharpness of conventional discharge printing, the addition of selected chemicals affected colour discharge and the contour sharpness. Strength tests did not show a significant decrease when using ozone treatment. Fastness tests results (washing and rubbing) were slightly higher compared with conventional discharge printed samples. COD values were much lower for ozone treatment compared with conventional discharge printing effluent. Consequently, it was demonstrated that ozone may be an environmentally friendly substitute for discharge printing. Coloration Technology Society of Dyers and ColouristsThis article was published online on 16 October 2017. Grammatical and formatting errors were subsequently identified. This notice is included in the online and print versions to indicate that both have been corrected [25 Jan 2018]. The scientific content of the article is unaffected.

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Decolorization and Degradation of Reactive Dye in Aqueous Solution by Ozonation in a Semi-batch Bubble Column Reactor

Cited by 53 publications

References 40 publications

Comparative degradation studies of Malachite Green and Thiazole Yellow G and their binary mixture using UV/H₂O₂

Comparative degradation studies of Malachite Green and Thiazole Yellow G and their binary mixture using UV/H₂O₂

Advanced Oxidation Treatment of Recalcitrant Wastewater from a Wood-Based Industry: a Comparative Study of O3 and O3/UV

Ozone utilisation for discharge printing of reactive dyed cotton

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Decolorization and Degradation of Reactive Dye in Aqueous Solution by Ozonation in a Semi-batch Bubble Column Reactor

Cited by 53 publications

References 40 publications

Comparative degradation studies of Malachite Green and Thiazole Yellow G and their binary mixture using UV/H2O2

Comparative degradation studies of Malachite Green and Thiazole Yellow G and their binary mixture using UV/H2O2

Advanced Oxidation Treatment of Recalcitrant Wastewater from a Wood-Based Industry: a Comparative Study of O3 and O3/UV

Ozone utilisation for discharge printing of reactive dyed cotton

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Comparative degradation studies of Malachite Green and Thiazole Yellow G and their binary mixture using UV/H₂O₂

Comparative degradation studies of Malachite Green and Thiazole Yellow G and their binary mixture using UV/H₂O₂