Removal of Chromium(VI) from Industrial Effluents Through Supported Liquid Membrane Using Trioctylphosphine Oxide as a Carrier

Nawaz, Robila; Ali, Khurshid; Ali, Nauman; Khaliq, Alia

doi:10.5935/0103-5053.20150272

Cited by 9 publications

(9 citation statements)

References 2 publications

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“…7(a and b to the strip side through the membrane, thereby increasing Pb 2+ concentration in the strip phase. 51 Fig. 8(a and b) show that the highest Pb 2+ transport was observed at 3 M H 2 SO 4 while further increasing its concentration resulted in decreased Pb 2+ transport due to the common ion effect.…”

Section: Resultsmentioning

confidence: 90%

“…Thus, increasing acid concentration will enhance the chances of the complexation reaction of the acid with the Pb 2+ ions, and the resulting complex is transported to the strip side through the membrane, thereby increasing Pb 2+ concentration in the strip phase. 51 Fig. 8(a and b) show that the highest Pb 2+ transport was observed at 3 M H 2 SO 4 while further increasing its concentration resulted in decreased Pb 2+ transport due to the common ion effect.…”

Section: Resultsmentioning

confidence: 90%

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Preparation of an rGO and iron oxide nanoparticle-incorporated polyvinyl acetate based membrane for the removal of Pb²⁺ from anticorrosive paint industrial wastewater

Muhammad

Ahmad

Maria

et al. 2022

Environ. Sci.: Water Res. Technol.

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Section: Resultsmentioning

confidence: 90%

Section: Resultsmentioning

confidence: 90%

Preparation of an rGO and iron oxide nanoparticle-incorporated polyvinyl acetate based membrane for the removal of Pb²⁺ from anticorrosive paint industrial wastewater

Muhammad

Ahmad

Maria

et al. 2022

Environ. Sci.: Water Res. Technol.

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“…This circumstance led the ELM film to weaken and the emulsion globules to quickly consolidate, which ultimately causes the ELM to break. This indicates that the emergence of smaller globules is what causes the mass transfer area to rise [34,35].…”

Section: Effect Of Agitation Speedmentioning

confidence: 95%

Removal of Hexavalent Chromium Using Emulsion Liquid Membrane with Jet Mixer: A Continuous Approach

Kavitha¹,

Baral

Ganesan

2023

Chem Eng & Technol

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The present study was aimed at eliminating CrVI from effluent streams by means of an emulsion liquid membrane generated by palm oil, Span 80 (surfactant), bis(2‐ethylhexyl) phosphate (carrier), and NaOH, used as an emulsion in the stripping phase. Jet mixing was used for homogenization and agitation of a continuous system for CrVI removal. The effects of process parameters such as carrier concentration, pH, and internal phase concentration on the transfer of CrVI from the internal to the membrane phase were studied. The results from batch studies were analyzed and incorporated in the continuous process.

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“…All experiments were conducted in a supported liquid membrane cell at 25 ± 1 • C. The SLM cell was composed of acrylic material and consisted of two compartments. The membrane was held between chambers with the help of clamps [30]. The compartment's volume for solutions was 180 cm 3 each.…”

Section: Supported Liquid Membrane Cellmentioning

confidence: 99%

Chromium (III) Ions Were Extracted from Wastewater Effluent Using a Synergistic Green Membrane with a BinaryCombination of D2EHPA and Kerosene

et al. 2022

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This study used a supported liquid membrane system (SLM) using Celgard 2400 polypropylene as the support, di(2-ethylhexyl) phosphoric acid (D2EHPA) as the carrier, and kerosene as the diluent. To obtain the best carrier concentration, D2EHPA concentrations between 0.04 and 0.6 M were used. The Cr (III) solutions used in the feed phase had various ionic strengths and were adjusted with NaCl at concentrations ranging from 0.25 to 1.75 M. To maintain a constant pH (4) in the feed phase, a 0.2 M acetic acid–sodium acetate buffer was utilized. Because the rate of Cr (III)-carrier complex formation at the interface of the feed solution and membrane increased up to 20 × 10−4 mol/L, it was discovered that transport of Cr (III) rose with an increase in chromium content in the feeding phase. For the optimization of the various stripping agents, HCl concentration was employed, from 0.25 M to 1.75 M. It was observed that Cr (III) transport increased with the increase in HCl concentration because the transport was at a pH gradient, which was the main driving force. Because of the fact that at the feed phase-membrane contact, D2EHPA combined with chromium ions to form the Cr (III)-carrier complex and released H+ protons, in the feed phase, the Cr (III)-carrier complex was diffused into a stripping phase, wherein Cr (III) ions were stripped and the carrier was reversibly protonated again.

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Removal of Chromium(VI) from Industrial Effluents Through Supported Liquid Membrane Using Trioctylphosphine Oxide as a Carrier

Cited by 9 publications

References 2 publications

Preparation of an rGO and iron oxide nanoparticle-incorporated polyvinyl acetate based membrane for the removal of Pb²⁺ from anticorrosive paint industrial wastewater

Preparation of an rGO and iron oxide nanoparticle-incorporated polyvinyl acetate based membrane for the removal of Pb²⁺ from anticorrosive paint industrial wastewater

Removal of Hexavalent Chromium Using Emulsion Liquid Membrane with Jet Mixer: A Continuous Approach

Chromium (III) Ions Were Extracted from Wastewater Effluent Using a Synergistic Green Membrane with a BinaryCombination of D2EHPA and Kerosene

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Removal of Chromium(VI) from Industrial Effluents Through Supported Liquid Membrane Using Trioctylphosphine Oxide as a Carrier

Cited by 9 publications

References 2 publications

Preparation of an rGO and iron oxide nanoparticle-incorporated polyvinyl acetate based membrane for the removal of Pb2+ from anticorrosive paint industrial wastewater

Preparation of an rGO and iron oxide nanoparticle-incorporated polyvinyl acetate based membrane for the removal of Pb2+ from anticorrosive paint industrial wastewater

Removal of Hexavalent Chromium Using Emulsion Liquid Membrane with Jet Mixer: A Continuous Approach

Chromium (III) Ions Were Extracted from Wastewater Effluent Using a Synergistic Green Membrane with a BinaryCombination of D2EHPA and Kerosene

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Product

Resources

About

Preparation of an rGO and iron oxide nanoparticle-incorporated polyvinyl acetate based membrane for the removal of Pb²⁺ from anticorrosive paint industrial wastewater

Preparation of an rGO and iron oxide nanoparticle-incorporated polyvinyl acetate based membrane for the removal of Pb²⁺ from anticorrosive paint industrial wastewater