Evaluation of operational parameters from a microfiltration system for indigo blue dye recovery from textile dye effluent

Amaral, Míriam Cristina Santos; Neta, Luzia Sergina França; Souza, Mariana; Cerqueira, Naiara; Carvalho, Roberto Bentes de

doi:10.1080/19443994.2013.793618

Cited by 12 publications

(6 citation statements)

References 16 publications

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“…MF supports unconsumed auxiliary chemicals, dissolved organic pollutants, ions, and other soluble pollutions to pass through the membrane together with the permeability (Couto et al 2017). Amaral et al (2014) studied the use and operating parameters of the MF system to recover insoluble indigo blue present in the cotton yarn dye bath to realize pigment reuse and water washing. The results suggested that the MF process can be potentially used to recover insoluble indigo blue presents in synthetic systems (Amaral et al 2014).…”

Section: Membrane Filtrationmentioning

confidence: 99%

Reviewing textile wastewater produced by industries: characteristics, environmental impacts, and treatment strategies

Wang

Jiang

Gao

2022

Water Science and Technology

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The textile industry is one of the most intensive industries in chemical products whose wastewater contains hazardous dyes, pigments, dissolved/suspended solids, and heavy metals. Hence, it is important to effectively treat the wastewater generated by this industry before releasing it into the environment. Though the field of textile wastewater treatment has made tremendous progress, the developed treatment methods should be improved further to make them economically viable and friendly. In this review, characteristics of textile wastewater are introduced. We have primarily focused on the environmental impact and toxicity of textile wastewater. Toxic and harmful contaminants must be removed from textile wastewater to reduce the extent of environmental pollution caused when textile wastewater is released into rivers or reused. Hence, various techniques that are used to treat textile wastewater are discussed. Finally, the challenges faced, and prospects of the methods have been discussed in detail.

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Section: Membrane Filtrationmentioning

confidence: 99%

Reviewing textile wastewater produced by industries: characteristics, environmental impacts, and treatment strategies

Wang

Jiang

Gao

2022

Water Science and Technology

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“…For the dyeing process it needs to be reduced to its leuco form (soluble form) using a strong reducing agent in alkaline solution (pH 11 to 14). The leuco form has a chemical affinity with cellulose (Amaral et al, 2014;Mishra et al, 2017;Nature, 2021). Fig.…”

Section: Introductionmentioning

confidence: 99%

“…1 shows the oxidation/reduction mechanism, and the Fenton indigo blue degradation. (Amaral et al, 2014;Nature, 2021) The annual production of indigo dye is approximately 50,000 tons (Mahakulkar et al, 2019). It is widely used in the dyeing of denim, as it gives jeans its characteristic blue color.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of color removal efficiencies and kinetic parameters of Fenton (H2O2/Fe2+) and photo-Fenton (H2O2/Fe2+/UV) processes in the treatment of a textile wastewater containing indigo blue / Avaliação da eficiência de remoção de cor e parâmetros cinéticos dos processos de Fenton (H2O2/Fe2+) e foto-Fenton (H2O2/Fe2+/UV) no tratamento de um efluente têxtil contendo corante azul índigo

Benassi¹,

Sánchez²,

Costa³

et al. 2021

BJDV

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The textile industry uses Indigo blue dye extensively in the production of jeans. Thus, high volumes of wastewater containing dye are obtained and must be treated before being discharged. The color removal efficiencies of indigo blue dye synthetic wastewater after treatment by Advanced Oxidative Processes (AOPs) using Fenton (H2O2/Fe 2+ ) and photo-Fenton (H2O2/Fe 2+/ UV) was evaluated in this work. The experiments were conducted at pH 2.8 and evaluated the influence of the amount of [H2O2]/[Fe 2+ ], the use of sulfuric acid and citric acid to adjust the pH, the initial concentration of the indigo dye, and the dosage form of H2O2 -the kinetic parameters and BMG model were also evaluated. The use of sulfuric acid to adjust the pH was more efficient in removing the color. The highest color removal rates were 70.78 ± 2.96 % after 180 min and 64.22 ± 2.08 % after 60 min, respectively, for the Fenton and photo-Fenton

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“…In this context, membranes play an extremely important role, especially in the field of water and sewage treatment [3]. Membranes have played an important role in the textile industry systems, especially in the treatment of effluents from the dyeing process where the amount of dye is present in a high percentage [4]. Thus, the membranes help in the reuse of process water from a cheap technology and simple operation.…”

Section: Introductionmentioning

confidence: 99%

Treatment of Effluents from the Textile Industry through Polyethersulfone Membranes

Ferreira

Salviano

Oliveira

et al. 2019

Water

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Membranes have been widely used in the treatment of industrial effluents. However, there are still some limitations in the separation and permeability with respect to these effluents. Therefore, this study investigated the addition of 1% and 5% of an inorganic filler (clay) in polyethersulfone polymer membranes. By contact angle analysis, it was observed that the clay influenced the hydrophilicity of the membrane. The presence of the clay had an important role in the morphology of the membrane, modifying and favoring a greater quantity of pores and macropores for the porous support. For the tensile test, it was seen that the high clay content decreased the membranes properties. The flow tests, having a flow stabilized around 300 L/h·m 2 for membranes containing clay, evidenced the efficiency of the membrane for the treatment of indigo blue, representing a 200% increase in relation to polyethersulfone membrane. The membrane containing 1% of clay presented the highest level of rejection to the effluent, around 94.0%. Thus, it was evident that the addition of montmorillonite clay modified the membrane structure contributing to a higher selectivity and permeability.

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Evaluation of operational parameters from a microfiltration system for indigo blue dye recovery from textile dye effluent

Cited by 12 publications

References 16 publications

Reviewing textile wastewater produced by industries: characteristics, environmental impacts, and treatment strategies

Reviewing textile wastewater produced by industries: characteristics, environmental impacts, and treatment strategies

Treatment of Effluents from the Textile Industry through Polyethersulfone Membranes

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