Use of sodium decanoate for selective precipitation of metals contained in industrial wastewater

Mauchauffee, Stéphanie; Meux, Eric

doi:10.1016/j.chemosphere.2007.05.006

Cited by 99 publications

(45 citation statements)

References 15 publications

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“…Various treatment methods and traditional technologies are used to remove heavy metals from wastewater, for instance, chemical oxidation/reduction [5] [6], electrodialysis [7], ultrafiltration [8] [9], solvent extraction [10], ion-exchange, evaporation, membrane filtration [11] [12] [13] [14], chemical precipitation [15], reverse osmosis [16] and coagulation [17]. However, there are some disadvantages accompany with these technologies such as high cost, sensitive operating conditions and possibility of secondary sludge production [18] [19] which suffocate their generalization in industries.…”

Section: Introductionmentioning

confidence: 99%

Sesame Husk as Adsorbent for Copper(II) Ions Removal from Aqueous Solution

El-Araby¹,

Ibrahim²,

Mangood³

et al. 2017

GEP

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In this study, the adsorption behavior of copper(II) ions from aqueous solutions onto sesame husk (SH) was investigated. The effect of different parameters such as pH, contact time, adsorbent dosage, adsorbate concentration, temperature and agitation speed was studied. Thermodynamic parameters, equilibrium isotherms and kinetic data have been evaluated. The functional groups and surface morphology of SH adsorbent were characterized by FTIR and SEM. Adsorption equilibrium isotherms were expressed by Langmuir, Freundlich and Dubinin-Radushkevich (D-R) adsorption models and it was found that Langmuir adsorption model fits the experimental data better than Freundlich and D-R models. The adsorption can be best described by the pseudo second-order kinetic model.

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Section: Introductionmentioning

confidence: 99%

Sesame Husk as Adsorbent for Copper(II) Ions Removal from Aqueous Solution

El-Araby¹,

Ibrahim²,

Mangood³

et al. 2017

GEP

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“…The conventional methods for removing heavy metals from wastewater include different processes such as chemical precipitation, ion exchange, solvent extraction, adsorption, or membrane filtration [3,5,6]. Chemical precipitation is the most widely used process in industry because it is relatively simple and inexpensive to operate [2,6]. Metals can be removed by precipitation as insoluble metal hydroxides, sulfides, carbonates, and phosphates [4,7].…”

Section: Introductionmentioning

confidence: 99%

“…Like the various characteristics of industrial wastewater, the treatment of industrial wastewater must be designed specifically for the particular type of effluent produced. The conventional methods for removing heavy metals from wastewater include different processes such as chemical precipitation, ion exchange, solvent extraction, adsorption, or membrane filtration [3,5,6]. Chemical precipitation is the most widely used process in industry because it is relatively simple and inexpensive to operate [2,6].…”

Section: Introductionmentioning

confidence: 99%

Removal of Heavy Metals From Wastewater Using Caustic Calcined Magnesia

Švandová¹,

Raschman²,

Sučik³

et al. 2015

Acta Metall Slovaca

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Slovakia holds 4th to 5 th position in the world with respect to the supplies and mining output of magnesite. The most important product of natural magnesite processing is magnesia. While dead-burnt magnesia is used for producing basic refractory materials for metallurgy and cement industry, caustic calcined magnesia (CCM) founds new applications in industries, agriculture and environment protection. Use of CCM, due to its alkaline nature, as a reactive material for remediation of wastewaters, can provide all advantages of methods based on neutralization (pH adjustment) by lime. In this study, CCM was experimentally tested as a reactive material for the removal of cations Cu 2+ , Zn 2+ and Ni 2+ from wastewaters. The effects of chemical composition of model wastewaters tested and water-to-CCM weight ratio were investigated. The results have shown that CCM is a suitable material for the removal of heavy metals, especially copper, zinc and nickel, from acid wastewaters. The efficiency of cation removal up to 100% has been observed.

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“…It then became worth considering the recovery of these metals. Selective precipitation has been tested for the recovery of the metal from the industrial waste water (Mauchauffée and Meux, 2007), the waste leaching solution (Innocenzi and Vegliò, 2012) and the mine waste water (Hammack and Edenborn, 1992;Hammack et al, 1994). Mechanisms for selective precipitation are based on the difference between the metal compounds' solubility products (Mauchauffée and Meux, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Selective precipitation has been tested for the recovery of the metal from the industrial waste water (Mauchauffée and Meux, 2007), the waste leaching solution (Innocenzi and Vegliò, 2012) and the mine waste water (Hammack and Edenborn, 1992;Hammack et al, 1994). Mechanisms for selective precipitation are based on the difference between the metal compounds' solubility products (Mauchauffée and Meux, 2007). Precipitators commonly used include sodium hydroxide, sodium sulphide and sodium decanoate (Jameson et al, 2010;Mauchauffée et al, 2008;Michalkova et al, 2007;Tokuda et al, 2008).…”

Section: Introductionmentioning

confidence: 99%