Removal of Ni(II) ions from wastewater by micellar-enhanced ultrafiltration

Yurlova, L. Yu.; Kryvoruchko, A. P.; Kornilovich, B. Yu.

doi:10.1016/s0011-9164(02)00321-1

Cited by 128 publications

(68 citation statements)

References 9 publications

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“…Over the years attempts have been made to provide decolourizing type carbon from raw materials like coal, groundnut husks, coconut shells, palm kernel shell, plantain peel, walnut shells, oil palm empty fruit bunches, Bamboo culms, maize cobs, cocoa pods, saw dusts etc [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Reaction Conditions on the Uptake of Selected Heavy Metals from Aqueous Media using Composite from Renewable Materials

Ekebafe¹,

Ekebafe²,

Erhuaga³

et al. 2012

AJPS

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This study is aimed at developing a value added biosorption product and a cost effective biotechnology for the uptake of heavy metals and organic compounds from aqueous media. The practical problems of cellulose solubility at low pH aqueous systems, gel forming behavior and mass transfer limitations were overcome in this study by coating bamboo culms cellulosic on bamboo culms carbon to form a rigid matrix structure of better mechanical strength, the coating process yielded a stable granular composite adsorbent that was stable under acidic conditions. The adsorption capacity was evaluated by measuring the extent of adsorption of chromium, cadmium, and lead metal ions, from aqueous media under equilibrium and reaction conditions. Equilibrium data at optimized condition yielded the following uptake efficiency values: 93% Cr, 76%Pb, and 82% Cd. The composite compared with other adsorbents also prepared showed better performance.

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Section: Introductionmentioning

confidence: 99%

“…A wide range of physical and chemical processes is available for the uptake of heavy metals and organics from aqueous media, such as electro-chemical precipitation, ultrafiltration, ion exchange and reverse osmosis [6][7][8]. The problem associating with the use of precipitation is sludge production.…”

Section: Introductionmentioning

confidence: 99%

Effect of Reaction Conditions on the Uptake of Selected Heavy Metals from Aqueous Media using Composite from Renewable Materials

Ekebafe¹,

Ekebafe²,

Erhuaga³

et al. 2012

AJPS

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“…Some alternative methods can be chosen to separate ionic compounds including the most common solvent extraction 34 , ion exchange 35 , electrophoresis 36 , chromatography 37 , magnetic field 38 , adsorption 39 , membrane separation 40 , and also IL separation 41 . Each separation method has been studied separately to improve the performance.…”

Section: General Methods To Separate Metal Ionsmentioning

confidence: 99%

Solvent extraction of gold using ionic liquid based process

Makertihartha

Zunita

Rizki

et al. 2017

AIP Conference Proceedings

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Abstract. In decades, many research and mineral processing industries are using solvent extraction technology for metal ions separation. Solvent extraction technique has been used for the purification of precious metals such as Au and Pd, and base metals such as Cu, Zn and Cd. This process uses organic compounds as solvent. Organic solvents have some undesired properties i.e. toxic, volatile, excessive used, flammable, difficult to recycle, low reusability, low Au recovery, together with the problems related to the disposal of spent extractants and diluents, even the costs associated with these processes are relatively expensive. Therefore, a lot of research have boosted into the development of safe and environmentally friendly process for Au separation. Ionic liquids (ILs) are the potential alternative for gold extraction because they possess several desirable properties, such as a the ability to expanse temperature process up to 300°C, good solvent properties for a wide range of metal ions, high selectivity, low vapor pressures, stability up to 200°C, easy preparation, environmentally friendly (commonly called as "green solvent"), and relatively low cost. This review paper is focused in investigate of some ILs that have the potentials as solvent in extraction of Au from mineral/metal alloy at various conditions (pH, temperature, and pressure). Performances of ILs extraction of Au are studied in depth, i.e. structural relationship of ILs with capability to separate Au from metal ions aggregate. Optimal extraction conditon in order to gain high percent of Au in mineral processing is also investigated.

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“…However, most of these methods are ineffective, expensive and inapplicable to a wide range of pollutants [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Iridium Organometallic Complexes Covalently Grafted to Mesoporous Silicates and their Application on Removal of Heavy Metal Ions from Aqueous Solution

Ahmed¹

2017

Nano Res Appl

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In the present paper, a cyclometalated thiolated bridged iridium dimmerswhere L is a bidentate cyclometalated ligand, 2,5-di(thiophen-2-yl) pyridine (dtp) (1) and 2-benzo [4,5] thienyl pyridine (btp) (2) were covalently bonded into silicate framework by hydrolysis and condensation reaction. The new nanohybrid materials were fully characterized by Fourier trans-form infrared spectroscopy (FTIR), X-ray diffractometer (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The results confirmed successful doping of the silicates with phosphorescent iridium organometallic complex. The TEM studies have suggested the nanoparticles nature. The prepared nanohybrids were found to be effective adsorbent for the removal of metal ions such as chromium (Cr

show abstract

Removal of Ni(II) ions from wastewater by micellar-enhanced ultrafiltration

Cited by 128 publications

References 9 publications

Effect of Reaction Conditions on the Uptake of Selected Heavy Metals from Aqueous Media using Composite from Renewable Materials

Effect of Reaction Conditions on the Uptake of Selected Heavy Metals from Aqueous Media using Composite from Renewable Materials

Solvent extraction of gold using ionic liquid based process

Synthesis and Characterization of Iridium Organometallic Complexes Covalently Grafted to Mesoporous Silicates and their Application on Removal of Heavy Metal Ions from Aqueous Solution

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