Removal of Zinc Ions from Water Using Emulsion Liquid Membrane

Al-Hemiri, Adel A.; Mahmoud, Heaven Emad

doi:10.2202/1542-6580.2018

Cited by 7 publications

(4 citation statements)

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“…Increasing the residence time leads to water transport into the internal phase, membrane swelling and emulsion breakage [54–55] . Therefore, with arsenic leakage from the internal phase to the external phase, the removal rate of arsenic decreases [56] . These results are consistent with the previous studies that showed the effect of longer contact time on emulsion breakage [57–58] …”

Section: Resultssupporting

confidence: 89%

“…[54][55] Therefore, with arsenic leakage from the internal phase to the external phase, the removal rate of arsenic decreases. [56] These results are consistent with the previous studies that showed the effect of longer contact time on emulsion breakage. [57][58] To evaluate the stability of the emulsions at rest, emulsions were prepared by employing the three mentioned carriers.…”

Section: Effect Of Carrier Type and Residence Timesupporting

confidence: 93%

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Removal of High Concentrations of Arsenite from Aqueous Solutions by the Emulsion Liquid Membrane Technique

Ghasemi,

Abdi,

Nasiri

2024

ChemistrySelect

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As(III) is a dangerous species that contaminates groundwater resources and therefore water purification from this element is necessary. In this study, the removal of As(III) was investigated by the emulsion liquid membrane (ELM) technique due to the high toxicity levels of this species. The effect of various parameters such as hydrochloric acid and arsenic concentration in the feed solution, emulsion to feed ratio, surfactant concentration and type of carrier was evaluated on the arsenic separation efficiency. The results showed that the best type of carrier in terms of emulsion stability and separation efficiency of arsenic ions was di‐(2‐ethylhexyl) phosphoric acid (D2EHPA), and its optimal concentration was about 5 % (v/v). In addition, paraffin as the organic solvent performed better than the mixture of paraffin and kerosene in the separation of As(III) ions. The optimal conditions were obtained at 8 and 0.1 M HCl concentrations for the feed and the internal phases, respectively. Also, the emulsion to feed ratio of 1 : 4.5, the volume ratio of the internal phase to the membrane phase of 1 : 1 and the surfactant concentration of 5 % (v/v) led to achieving the maximum removal of arsenic ions. This work presents a broad perspective of removing As(III) ions from wastewater by carefully examining the parameters influencing the separation of this hazardous element through the ELM method.

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Section: Resultssupporting

confidence: 89%

Section: Effect Of Carrier Type and Residence Timesupporting

confidence: 93%

Removal of High Concentrations of Arsenite from Aqueous Solutions by the Emulsion Liquid Membrane Technique

Ghasemi,

Abdi,

Nasiri

2024

ChemistrySelect

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“…For instance, leaf, stem bark, and peel extracts exerted both in vitro and in vivo activity against the gastrointestinal parasites Schistosoma mansoni [232], Ascaris suum [233], and Giardia lamblia [309]. These effects might be due to pelletierine alkaloids, unusual alkaloids which, among others, paralyze tapeworms so that they are easily expelled from the body by using a laxative [310]. Other compounds isolated from the fruit such as the phenolics gallagic acid and punicalagins exhibited in vitro activity against the malaria parasite Plasmodium falciparum [184].…”

Section: Lythraceae-punica Granatum Lmentioning

confidence: 99%

Traditional Plant-Based Treatments of Fungal Infections in the Republic of Suriname (South America): Phytochemical and Pharmacological Rationales

Mans¹

2022

Traditional Plant-Based Forms of Treatment of Fungal Infections in Suriname - Phytochemical and Pharmacological Rationale

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Fungi are unicellular or multicellular thick-walled eukaryotic organisms that are not capable of photosynthesis and are placed in a biological kingdom of their own. They are ubiquitous in our environment, and include tens of thousands, perhaps even millions of species of yeasts, rusts, smuts, mildews, molds, and mushrooms. Together with bacteria, fungi are the principal decomposers of plant materials such as cellulose and lignin, fulfilling vital ecological functions in all terrestrial habitats. Some species of fungi are also of major importance in households (for instance, as foods such as edible mushrooms), medicine (for instance, as producers of antibiotics such as penicillin), and industry (for instance, for making bread, wine, and cheese). About 300 fungal species cause infections in humans, varying from relatively harmless skin complaints such as pityriasis versicolor to potentially life-threatening systemic syndromes such as candidiasis. Fortunately, a broad armamentarium of efficacious antifungal drugs has been developed, ranging from topical nystatin to parenteral amphotericin B. In addition, most, if not all traditional medical systems throughout the world have identified a large assortment of plant-based remedies for treating these infections. This also holds true for the multi-ethnic and multicultural Republic of Suriname (South America), where plant-based traditional medicines are abundantly used, either alone or in conjunction with allopathic medications. This monograph extensively addresses nine plants that are traditionally used for treating fungal infections in Suriname, and explains the phytochemical and pharmacological rationales for these applications. These sections are preceded by some general observations about the Fungal Kingdom; a few words about the characteristics of fungi, their taxonomy, and their significance to humans; information about fungal infections as well as the available forms of treatment; and some details about Suriname including health aspects, the health care structure, and the main fungal infections in the country. The monograph is concluded with an evaluation of the status of the Surinamese herbal antifungal substances and the previsions of developing them into mainstream antifungal formulations.

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“…These points have clearly explained the importance of fixing some limits for these heavy metals in drinking and waste waters. Treatment methods to reach the fixed limit (5ppm) include chemical precipitation and other separation methods [5][6][7][8][9][10][11][12] . In this study we are interested in the treatment of the cyanide-free alkaline zinc-plating effluent, where cyanide may be replaced by complexing or chelating agents such as sodium gluconate, triethanolamine or polymeric amines.…”

mentioning

confidence: 99%

Preliminary Study of Zinc Removal from Cyanide-free Alkaline Electroplating Effluent by Precipitation using Oxalis Plants

Benouali¹,

Kherici²,

Belabbassi³

et al. 2014

Orient. J. Chem.

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Removal of Zinc Ions from Water Using Emulsion Liquid Membrane

Cited by 7 publications

References 0 publications

Removal of High Concentrations of Arsenite from Aqueous Solutions by the Emulsion Liquid Membrane Technique

Removal of High Concentrations of Arsenite from Aqueous Solutions by the Emulsion Liquid Membrane Technique

Traditional Plant-Based Treatments of Fungal Infections in the Republic of Suriname (South America): Phytochemical and Pharmacological Rationales

Preliminary Study of Zinc Removal from Cyanide-free Alkaline Electroplating Effluent by Precipitation using Oxalis Plants

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