Synergistic strippants of Pd (II) ions in the presence of chloride medium from wastewater of electroless plating process via solvating system: Kinetics and thermodynamics study

Mohdee, Vanee; Maneeintr, Kreangkrai; Phatanasri, Suphot; Pancharoen, Ura

doi:10.1080/01496395.2018.1556296

Cited by 10 publications

(3 citation statements)

References 47 publications

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“…When HCl was mixed with thiourea, the percentage of arsenic stripping increased from 45 to 98%. This was due to the synergistic effect 44 . To confirm the synergistic effect of stripping arsenic ions using the mixture of HCl and thiourea, the distribution ratios of arsenic stripping, using each extractant, were estimated.…”

Section: Resultsmentioning

confidence: 99%

The elimination of trace arsenic via hollow fiber supported liquid membrane: experiment and mathematical model

Suren

Ampronpong

Pancharoen

et al. 2021

Sci Rep

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This work presents the elimination of arsenic ions from synthetic produced water via hollow fiber supported liquid membrane (HFSLM). Results demonstrate that arsenic ions in synthetic wastewater can be successfully treated to meet the wastewater standard as formulated by the Ministry of Industry and the Ministry of Natural Resources and Environment, Thailand. The discharged limit of arsenic from industrial wastewater must not be greater than 250 ppb. In a single-step operation, arsenic ions are extracted and stripped. Percentages of extraction and stripping proved to be 100% and 98%, respectively. Optimum conditions found proved to be 0.68 M Aliquat 336 dissolved in toluene as the liquid membrane, at pH 12 of feed solution, having a mixture of HCl and thiourea as the synergistic strippant, and flow rates of both feed and strippant solutions of 100 mL/min. A mathematical model, developed to predict the final concentration of arsenic ions in feed and strippant solutions, is seen to fit in well with the experimental results.

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Section: Resultsmentioning

confidence: 99%

The elimination of trace arsenic via hollow fiber supported liquid membrane: experiment and mathematical model

Suren

Ampronpong

Pancharoen

et al. 2021

Sci Rep

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“…4 (b), the mixture of 0.5 mol/L HCl and 0.5 mol/L (nitric acid, methanol, and thiourea) was used to improve the separation performance of arsenic. The mixture of HCl and thiourea reached 32.2 % arsenic extraction, resulting in a synergistic effect [ 55 ]. On the other hand, the mixture of HCl and methanol plus the mixture of HCl and nitric acid proved to be 12.8 % and 9.8 % of arsenic extraction, respectively.…”

Section: Resultsmentioning

confidence: 99%

Synergistic effect of arsenic removal from petroleum condensate via liquid-liquid extraction: Thermodynamics, kinetics, DFT and McCabe-Thiele method

Purktimatanont,

Mohdee,

Pancharoen

et al. 2023

Heliyon

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“…When HCl was mixed with thiourea, the percentage of arsenic stripping increased from 45% to 98%. This was due to the synergistic effect [33]. To confirm the synergistic effect of stripping arsenic ions using the mixture of HCl and thiourea, the distribution ratios of arsenic stripping, using each extractant, were estimated.…”

Section: Effects Of Strippant Solutionsmentioning

confidence: 99%

The Elimination of Trace Arsenic Via Hollow Fiber Supported Liquid Membrane: Experiment and Mathematical Model

Suren

Ampronpong

Pancharoen

et al. 2021

Preprint

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This work presents the elimination of arsenic ions from synthetic produced water via hollow fiber supported liquid membrane (HFSLM). The effects of extractants, pH of feed solution, strippant solutions, and flow rates of feed and strippant solutions are duly investigated. Results demonstrate that arsenic ions in synthetic wastewater could be treated to comply with the standard of wastewater discharged (< 0.25 mg/L) via HFSLM. Percentages of extraction and stripping proved to be 100% and 98%, respectively. Thus, in a single-step operation, arsenic ions are extracted and stripped, using 0.5 M Aliquat 336 as the extractant, at pH of feed solution of 12, with a mixture of thiourea and hydrochloric acid (0.5 M each) as the synergistic strippant solution, and flow rates of both feed and strippant solutions of 100 mL/min. A mathematical model has also been developed to predict the final concentration of arsenic ions in feed and strippant solutions. The results predicted by the mathematical model fit in well with the experimental results.

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Synergistic strippants of Pd (II) ions in the presence of chloride medium from wastewater of electroless plating process via solvating system: Kinetics and thermodynamics study

Cited by 10 publications

References 47 publications

The elimination of trace arsenic via hollow fiber supported liquid membrane: experiment and mathematical model

The elimination of trace arsenic via hollow fiber supported liquid membrane: experiment and mathematical model

Synergistic effect of arsenic removal from petroleum condensate via liquid-liquid extraction: Thermodynamics, kinetics, DFT and McCabe-Thiele method

The Elimination of Trace Arsenic Via Hollow Fiber Supported Liquid Membrane: Experiment and Mathematical Model

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