Retention of cadmium ions from aqueous solutions by poly(ammonium acrylate) enhanced ultrafiltration

Ennigrou, Dorra Jellouli; Gzara, Lassâad; Romdhane, Mohamed Ramzi Ben; Dhahbi, Mahmoud

doi:10.1016/j.cej.2009.07.028

Cited by 20 publications

(6 citation statements)

References 27 publications

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“…But, when it is used in high concentrations it becomes toxic to animals, ecosystem and can cause nausea, anaemia and pancreas loss [54]. Its main sources are from battery production, galvanic industries mining effluents and acid amine drainage [55,56]. Among metal pollutants mercury Hg(II) is the most problematic.…”

Section: Heavy Metal Ions Pollution In Watermentioning

confidence: 99%

A Review on Chitosan for the Removal of Heavy Metals Ions

Zia¹,

Tabassum²,

Gong³

et al. 2019

JFBI

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There has recently been an increasing interest in water treatment methods as a result of growing concerns over shortages of clean water. This paper aims to review the past and present researches on chitosan for the adsorption of heavy metals from the wastewater. Adsorption is considered to be the most efficient method for the removal of metal impurities from drinking water. Chitosan, a deacetylated derivative of chitin, has many commercial applications due to its biocompatibility, nontoxicity, and biodegradability. Moreover, amine groups are present on the backbone of chitosan. For this reason, chitosan has been used for the adsorption of heavy metals. To begin with, mechanism of adsorption of heavy metal ions on chitosan and disadvantages of heavy metal ions were reviewed. Further, a detailed review had been done on the adsorption capacities of crosslinked chitosan, chitosan nanofibers, chitosan nanoparticles, chitosan composites, modified/pure chitosan, and porous chitosan. Lastly, research gaps and future recommendations were given for further development and accurate results of adsorption.

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Section: Heavy Metal Ions Pollution In Watermentioning

confidence: 99%

A Review on Chitosan for the Removal of Heavy Metals Ions

Zia¹,

Tabassum²,

Gong³

et al. 2019

JFBI

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“…Two polyelectrolytes: poly (acrylic acid) (PAA) (M W = 100g mol −1 , 35wt%) and poly (ammonium acrylate) (PANH 4 ) (M W = 30 g mol −1 , 40wt%) were used in this study. PAA was supplied by SigmaAldrich and PANH 4 was synthesized in laboratory by radical polymerization of ammonium acrylate monomer [13]. The chemical structures of the three compounds are shown in Fig.…”

Section: Chemicalsmentioning

confidence: 99%

The effect of operating conditions on the retention of Toluidine blue by polyelectrolyte-enhanced ultrafiltration

Fradj

Ouni

Hamouda

et al. 2014

Desalination and Water Treatment

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A B S T R A C TIn the present work, we study the effect of experimental conditions on the performance of polyelectrolyte-enhanced ultrafiltration for the removal of Toluidine blue from aqueous solution. The dye solution was processed by ultrafiltration using a regenerate cellulose membrane with pore sizes small enough to block the passage of the polymer and then the complexed dye ions. The experiments showed that retentions as high as 99% and 97% were obtained for PAA and PANH 4 , respectively, due to the strong electrostatic interaction between anionic polyelectrolytes and cationic dye. The increase of retention was linked to the complexation of the dye by polyelectrolyte while the decrease of the permeate flux was attributed to the accumulated macromolecular complex near the membrane.

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“…Polyvinylidene fluoride (PVDF), polyethersulfone (PES), cellulose acetate (CA), polyacrylonitrile (PAN), and polysulfone (PSf) have been commonly employed as polymers for UF applications. [3][4][5] Among them, PSf is a prominent starting material for the preparation of porous UF membranes by phase inversion techniques. PSf is soluble in various non-volatile and harsh polar aprotic solvents, such as N-methyl pyrrolidinone (NMP), N, N-dimethylacetamide (DMAc), and N, N-dimethylformamide (DMF).…”

Section: Introductionmentioning

confidence: 99%

Comparative study on the effect of poly (vinylpyrrolidone) and polyethylene glycol as additives on polysulfone synthesized ultrafiltration membranes

Rhimi

Zlaoui²,

Bruggen

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND Polysulfone ultrafiltration membranes were prepared by phase inversion technique with 1‐methyl‐2‐pyrrolidinone as solvent, and with poly (vinyl pyrrolidone) (2 wt% and 3 wt%) and polyethylene glycol (6 wt%) as additives. Water contact angle measurements, scanning electron microscopy, and Fourier transform infrared spectroscopy were used to characterize the synthesized membranes. The membrane permeation has been evaluated in terms of ultrapure water, bovine serum albumin, cobalt, and copper retention. This study compared the effects of the amount and nature of additives on the performance and structure of synthesized membranes to enhance the hydrophilicity of polysulfone membranes. RESULTS It was found that 2 wt% poly (vinyl pyrrolidone) gives the optimal values on retention and flux permeation. When applied to ultrafiltration, the membrane exhibited high retention of bovine serum albumin, cobalt, and copper (99.1%, 28.9%, and 46.7%, respectively). The retention values of cobalt and copper are not high. CONCLUSION In the polyelectrolyte enhanced ultrafiltration process, the addition of a complexing agent, such as sodium alginate, enhances the retention of cobalt and copper to 94% and 97%, respectively. The optimal performances have been obtained at 2 bar and pH 4 for copper and cobalt retention., © 2022 Society of Chemical Industry (SCI).

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Retention of cadmium ions from aqueous solutions by poly(ammonium acrylate) enhanced ultrafiltration

Cited by 20 publications

References 27 publications

A Review on Chitosan for the Removal of Heavy Metals Ions

A Review on Chitosan for the Removal of Heavy Metals Ions

The effect of operating conditions on the retention of Toluidine blue by polyelectrolyte-enhanced ultrafiltration

Comparative study on the effect of poly (vinylpyrrolidone) and polyethylene glycol as additives on polysulfone synthesized ultrafiltration membranes

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