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Supported liquid membrane extraction of nickel using stable composite speek/pvdf support impregnated with a sustainable liquid membrane

Raja Sulaiman, Raja Norimie and Jusoh, Norela and Othman, Norasikin and Mohamed Noah, Norul Fatiha and Rosly, Muhammad Bukhari and Abdul Rahman, Hilmi (2019) Supported liquid membrane extraction of nickel using stable composite speek/pvdf support impregnated with a sustainable liquid membrane. Journal of Hazardous Materials, 380 . ISSN 0304-3894

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Official URL: http://dx.doi.org/10.1016/j.jhazmat.2019.120895

Abstract

A sustainable and stable supported liquid membrane (SLM) extraction of nickel was developed via impregnation of sustainable liquid membrane in the composite membrane support consisting of polyvinylidene fluoride (PVDF) and sulfonated poly (ether ether ketone) (SPEEK). Bis-2-ethylhexyl phosphate (D2EHPA), 1-octanol, refined palm oil and sulfuric acid were employed as extractant, synergist extractant, diluent and strippant, respectively. Variables studied including effect of refined palm oil compositions as well as the configurations and thicknesses of SPEEK. Lifespan of SLM was evaluated by recycling the composite membrane support. Results revealed that upon using 100% refined palm oil, about 100% of nickel was extracted and recovered in 10 and 14 h, respectively. Composite SPEEK/PVDF stabilized SLM by reducing liquid membrane loss from 47 to 23% upon applying SPEEK at the feed side of PVDF support. High permeability and flux values were obtained at 9.26 x 10−4 cms−1 and 6.48 x 10−7 molcm−2s−1 when increasing SPEEK thickness from 0.025 to 0.055 mm, respectively. The lifespan of SLM was extended up to ninth cycles with low weight loss percentage of the impregnated composite membrane (8%). In conclusion, the SPEEK/PVDF impregnated with refined palm oil has improved the stability of SLM extraction of nickel ions from industrial wastewater.

Item Type:Article
Uncontrolled Keywords:composite membrane, extraction, SLMS, PEEK, stability
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:89526
Deposited By: Yanti Mohd Shah
Deposited On:22 Feb 2021 14:08
Last Modified:22 Feb 2021 14:08

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