Studies on the mechanism of Indigo Carmine removal by solvent sublation

Lü, Yujuan; Li, Jizhen; Zhang, Xueli; Tang, Jie; Wei, Bo; Liu, Jianhong

doi:10.1016/j.jcis.2005.05.046

Cited by 12 publications

(2 citation statements)

References 20 publications

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“…A study introduced DAP method to generate bubbles for solvent sublation bubble columns [63]. The solvent sublation process, introduced by Sebba in 1996, is a non-foaming bubble separation technique used for removing organic components from water [64]. This process involves applying high pressure, up to 820 kPa, to saturate the air in a packed column saturator.…”

Section: Dissolved Air Precipitation (Dap)mentioning

confidence: 99%

Advances in Produced Water Treatment Technologies: An In-Depth Exploration with an Emphasis on Membrane-Based Systems and Future Perspectives

Ibrahim,

Nawaz,

Rout

et al. 2023

Water

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This comprehensive review focuses on treatment technologies for produced water, with a particular emphasis on membrane-based systems. These systems offer significant advantages, including high contaminant removal efficiencies, compact design, and the potential for resource recovery. The review emphasizes the application of these technologies, their performance in meeting regulatory standards, and the challenges they face, such as operational efficiency and fouling. It highlights the need for further research and for the optimization of processes to enhance their efficiency. The integration of conventional methods with advanced treatment processes is also explored, with a vision toward developing hybrid systems for improved treatment efficiency. Overall, membrane-based systems show great promise for the treatment of produced water, but further advancements, sustainability considerations, and integration with other technologies are essential for their successful implementation in large-scale applications.

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Section: Dissolved Air Precipitation (Dap)mentioning

confidence: 99%

Advances in Produced Water Treatment Technologies: An In-Depth Exploration with an Emphasis on Membrane-Based Systems and Future Perspectives

Ibrahim,

Nawaz,

Rout

et al. 2023

Water

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“…Owing to the wide use of IC, a number of research works has been undertaken with regards to the removal of dyestuff from wastewater and adsorption of dyestuff on different absorbents [9][10][11][12][13][14][15][16][17][18][19][20][21]. Lu et al studied on the mechanism of IC removal from aqueous solution by solvent sublation [22]. Mittal et al investigated the adsorption of IC from wastewater by bottom ash and de-oiled soya [23].…”

mentioning

confidence: 99%

Sorption Characteristics of Indigo Carmine as a Blue Colorant for Use in One-bath Natural Dyeing

Komboonchoo

Bechtold

2009

Textile Research Journal

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Indigo carmine can be used as model for a blue natural colorant for wool and hair dyeing in a one-bath procedure. The sorption and dyeing properties of indigo carmine on wool are studied as a prerequisite for the successful application in combination with natural dye. To evaluate the suitable conditions for the dyeing process, different pH, dye concentrations and temperatures were studied. The dyeing and sorption characteristics on wool were determined on the basis of spectrophotometry and color measurement. Both high dye sorption and color strength were obtained when dyeing at elevated temperature, e.g. 80°C, and lower pH, e.g. pH 3. However, there is significant potential to apply the dyestuff also at temperatures in the range of 40—60°C and pH values of 4—5. Depending on the dyebath pH the sorption isotherms follow the Langmuir- or Freundlich-type isotherm. At pH 3 and 4 Langmuir isotherms are observed, while at pH 5, 6 and 7 sorption on wool follows the Freundlich isotherm behavior. From the dyeing isotherms the standard affinity (Δµ) of the dyeing step was determined. At pH 3 the heat of dyeing (ΔH) and entropy of dyeing (ΔS) were calculated as 40.22 kJ mol -1 and 0.19 kJ mol-1 K -1, respectively.

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Equilibrium and kinetic modeling of the adsorption of indigo carmine onto silk

et al. 2010

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Quantitative adsorption kinetic and equilibrium parameters for indigo carmine dyeing of silk were studied using UV-visible absorption spectroscopy. The effect of initial dye concentration, contact time, pH, material to liquor ratio (MLR), and temperature were determined to find the optimal conditions for adsorption. The mechanism of adsorption of indigo carmine dyeing onto silk was investigated using the pseudo first-order and pseudo second-order kinetic models. The adsorption kinetics was found to follow a pseudo-second-order kinetic model with an activation energy (E-a) of 51.06 kJ/mol. The equilibrium adsorption data of indigo carmine dye on silk were analyzed by the Langmuir and Freundlich models. The results indicate that the Langmuir model provides the best correlation. Adsorption isotherms were also used to obtain thermodynamic parameters such as free energy (Delta G degrees), enthalpy (Delta H degrees), and entropy (Delta S degrees) of adsorption. The negative values of Delta G degrees and Delta H degrees indicate the overall adsorption process is a spontaneous and exothermic one.

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Studies on the mechanism of Indigo Carmine removal by solvent sublation

Cited by 12 publications

References 20 publications

Advances in Produced Water Treatment Technologies: An In-Depth Exploration with an Emphasis on Membrane-Based Systems and Future Perspectives

Advances in Produced Water Treatment Technologies: An In-Depth Exploration with an Emphasis on Membrane-Based Systems and Future Perspectives

Sorption Characteristics of Indigo Carmine as a Blue Colorant for Use in One-bath Natural Dyeing

Equilibrium and kinetic modeling of the adsorption of indigo carmine onto silk

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