Decontamination of a Radioactive Process Waste Water by Adsorbing Colloid Flotation

Shakir, K.; Aziz, Md. Abdul; Salama, H.N.; Benyamin, K.

doi:10.1080/10256018708623763

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…Feris et al [46] investigated several combinations of sorbent and metal in sorptive flotation, along with a performance comparison with DAF, IAF and JCF for oil removal. Koyanaka [99] and Shakir et al [106] …”

Section: Introductionmentioning

confidence: 99%

“…Among the targets to be treated are surfactants [11][12][13][14][15][16][17][18][19][20][21], proteins [22][23][24][25][26][27][28], microorganisms including bacteria and viruses [29,30], dyes [9,31], other organic substances including plastics [7,[32][33][34][35], ores [36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55], metal ions , colloidal particles [106][107][108] in pretreatment in mining and for analytical chemistry, or in the emission co...…”

Section: Introductionmentioning

confidence: 99%

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Foam Separation of Metal Ions and the Potential ‘Green’ Alternative to Solvent Extraction

Kinoshita

Nii

2012

SERDJ

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Foam separation has been applied to recover or remove various substances from dilute aqueous solutions in various industries because it is an environment-and cost-friendly process. The literature has been reviewed focusing on the separation of metal ions.From an operational point of view, various methods are discussed for the removal of metal ions from solution, and on the selective recovery of a specific target metal ion.The former applications are designed to purify industrial effluents, and the performance of foam separation is well proven. The latter examples are aimed at recovering valuable metals, which has been shown to be difficult due to the inherent problem of contamination in foam separation. An operation mode was developed to overcome this problem and to enhance the selectivity for separating a specific target metal from solutions containing multi-metals. The method, called continuous counter-current foam separation, was developed, and its performance was demonstrated by the experimental results for Ga(III) separation. Since both high selectivity and recovery was obtained by this method, foam separation is potentially a "solvent-free" alternative to solvent extraction.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Foam Separation of Metal Ions and the Potential ‘Green’ Alternative to Solvent Extraction

Kinoshita

Nii

2012

SERDJ

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Studies on the liquid-liquid extraction and ion and precipitate flotation of Co(II) with decanoic acid

Beheir

Aziz

Shakir

1993

Journal of Radioanalytical and Nuclear Chemistry, Articles

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Removal of metal ions from dilute solutions by sorptive flotation

Zouboulis

Matis

1997

Critical Reviews in Environmental Science and Technology

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The removal of soluble ionic species, such as toxic metal cations or oxyanions, from dilute aqueous solutions, as most waste waters are, was investigated in laboratory-scale experiments (batch and continuous mode) by applying the sorptive flotation process. This method involves the preliminary abstraction or scavenging of metal ions using proper "sorbents", which exist at the fine or ultrafine particle-size range, followed by a subsequent flotation stage for the separation of metalloaded sorbent particles from the treated (cleaned) solution. The main flotation techniques for the generation of the necessary bubbles (dissolved air, dispersed, and electrolytic) were applied effectively. The examined sorbents for the initial stage of the process could be of either inorganic nature, conventional (powdered activated carbon and zeolites) or industrial solid byproducts originated in the mineral industry, or of a biological nature (biosorbents), such as those produced during fermentations, in sewage treatment plants (sludge), etc. As a result of the process application, purified water is produced (underflow) as well as a foam concentrate; the recovery and recycling of removed species is also possible from the latter, leading to an overall clean technology. If required, the sorbents may also be reused and recycled after the application of a suitable metal eluant, which can also be considered to reveal to a certain extent the disposal problem of solid wastes.

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Decontamination of a Radioactive Process Waste Water by Adsorbing Colloid Flotation

Cited by 4 publications

References 12 publications

Foam Separation of Metal Ions and the Potential ‘Green’ Alternative to Solvent Extraction

Foam Separation of Metal Ions and the Potential ‘Green’ Alternative to Solvent Extraction

Studies on the liquid-liquid extraction and ion and precipitate flotation of Co(II) with decanoic acid

Removal of metal ions from dilute solutions by sorptive flotation

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