IDEAS home Printed from https://ideas.repec.org/a/cuo/ijsrch/v10y2025i5id55.html

Emulsion Liquid Membrane for Malachite Green Dye Removal: Emulsion Stability Studies and Environmental Impact

Author

Listed:
  • Akash R. Raval
  • Omprakash K. Mahadwad

Abstract

Extraction of malachite green dye from aqueous solutions was investigated under varying experimental conditions using emulsion liquid membranes (ELMs). The study systematically explored the effects of key process variables and emulsion composition parameters on the dye transport efficiency into the ELMs. The membrane phase comprised kerosene as the diluent, with di(2-ethylhexyl) phosphoric acid (D2EHPA) employed as the carrier, SPAN 80 as the surfactant, and an internal phase of 0.5–2.0 M H2SO4 as the stripping agent. Emulsions were characterized for their internal droplet size distribution, viscosity, and interfacial tension with the external feed phase. Optimal removal of malachite green was achieved using an emulsion system containing 1.0 M H2SO4 as the internal phase (Cio), 8% v/v D2EHPA as the carrier (Cc), and 2.5% wt. SPAN 80 as the surfactant (Cs), with the feed phase maintained at pH 4.0. The emulsions were dispersed at 180 rpm with an emulsion-to-feed phase ratio yielding a holdup (h) of 12.8%. In addition to extraction efficiency, the study conducted comprehensive stability assessments, including swelling behavior over time. Stability was found to be strongly influenced by surfactant concentration and internal phase osmotic pressure. The optimized ELM formulation demonstrated minimal swelling and maintained structural integrity over extended operation, ensuring effective dye extraction and reusability potential.

Suggested Citation

  • Akash R. Raval & Omprakash K. Mahadwad, 2025. "Emulsion Liquid Membrane for Malachite Green Dye Removal: Emulsion Stability Studies and Environmental Impact," International Journal of Scientific Research in Chemistry, International Journal of Scientific Research in Chemistry, vol. 10(5), pages 23-32, September.
    • Handle: RePEc:cuo:ijsrch:v10:y2025:i5:id:55
    DOI: 10.32628/IJSRCH251152
    Note: Article URL: https://ijsrch.com/home/article/view/IJSRCH251152
    as

    Download full text from publisher

    File URL: https://ijsrch.com/home/article/view/IJSRCH251152
    File Function: Article URL
    Download Restriction: no
    File URL: https://ijsrch.com/home/article/download/IJSRCH251152/IJSRCH251152
    File Function: Full text
    Download Restriction: no
    File URL: https://libkey.io/10.32628/IJSRCH251152?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    JEL classification:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:cuo:ijsrch:v10:y2025:i5:id:55. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Pankaj Sharma (email available below). General contact details of provider: https://ijsrch.com/home .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.