Removal of cadmium, copper, nickel, cobalt and mercury from water by Apatite II™: Column experiments

Oliva, Josep; Pablo, Joan de; Cortina, José Luis; Cama, Jordi; Ayora, Carlos

doi:10.1016/j.jhazmat.2011.07.104

Cited by 118 publications

(33 citation statements)

References 51 publications

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“…Some of these techniques include bamboo charcoal, apatite IITM, iron-based sorbents, diperiodatocuprate(III) coordination solution, malt spent rootlets, bacillus cereus, modified Fe 3 O 4 , flocculation method, complexation by dissolved organic matter, heterogeneous photocatalysis with TiO 2 , alginate and pectate [ [26][27][28][29][30][31][32][33][34][35]. Others have reviewed the technologies for removing mercury in aqueous solution [36].…”

Section: Introductionmentioning

confidence: 99%

Mercury Removal from Aqueous Solution by Mixed Mineral Systems I. Reactivity and Removal Kinetics

Egirani¹

2013

IOSR-JESTFT

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Section: Introductionmentioning

confidence: 99%

Mercury Removal from Aqueous Solution by Mixed Mineral Systems I. Reactivity and Removal Kinetics

Egirani¹

2013

IOSR-JESTFT

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“…three time higher than the microspheres). For hydroxyapatite, reported values vary between 0.5 mg g -1 and 50 mg g -1 (in column experiments) [34]. Therefore the composite phases with removal capacities of ca.…”

Section: Removal Studiesmentioning

confidence: 95%

Hierarchically-organized, well-dispersed hydroxyapatite-coated magnetic carbon with combined organics and inorganics removal properties

Yang

Liu

Masse

et al. 2015

Chemical Engineering Journal

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Novel hierarchically-organized magnetic microspheres have been successfully developed that consist of an aqueous hollow core, a magnetic porous Fe 3 O 4 -carbon layer and a well-define hydroxyapatite (HAp) shell. The hollow magnetic carbon microspheres were prepared by ultrasonic spray pyrolysis and coated with HAp using a biomimetic approach. The resulting powders exhibit micro-and meso-porosity. The removal capacity of the composite spheres towards an antibiotic (ampicilin), a rare-earth ion (La 3+ ) and two heavy metals (Hg 2+ and Pb 2+ ) has been studied and compared with that of the individual components. The dual organic-inorganic affinity of the magnetic HAp/carbon conjugates was demonstrated, with synergetic effects being evidenced for heavy metal removal enlightening their potentialities in wastewater treatment.

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“…For instance, phosphates released by Pbearing minerals (e.g., apatite) cause an increase of the pH up to 6.5-7.5, which induce the complexation and precipitation of heavy metals such as Cd, Fe, Mn, Ni, Pb, and Zn, as metal phosphates [36,37]. The enhanced sorption usually observed for some polyvalent cations on metal oxides in the presence of sulfate and phosphate or LMMOLs has been attributed to the increased negative charge brought to the surfaces by these ligands, which promoted electrostatic interactions, or the formation of ternary A-or B-type complexes (Fig.…”

Section: Effect Of Anions and Cations On The Sorption/desorption Of Mmentioning

confidence: 99%

Chemical Processes Affecting the Mobility of Heavy Metals and Metalloids in Soil Environments

2015

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The mobility, bioavailability, and toxicity of metal (-loid)s are influenced by their interactions with phyllosilicates, organic matter, variable charge minerals, and microorganisms. Physicochemical processes influencing the chemistry of metal(-loid)s in soil environments include sorption/desorption, solution complexation, oxidation-reduction, and precipitationdissolution reactions. In particular, the sorption/desorption reactions of metal(loid)s on/from soil sorbents are influenced by pH, nature of soil components, and presence and concentrations of cations and inorganic anions. In recent years, many extraction tests have been used for assessing trace elements mobility and phytoavailability. Chemical speciation of toxic elements may be achieved by spectroscopic analyses (XAS), which provide information about oxidation state, symmetry, and identity of the coordinating ligand environment, and possible solid phases.

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Removal of cadmium, copper, nickel, cobalt and mercury from water by Apatite II™: Column experiments

Cited by 118 publications

References 51 publications

Mercury Removal from Aqueous Solution by Mixed Mineral Systems I. Reactivity and Removal Kinetics

Mercury Removal from Aqueous Solution by Mixed Mineral Systems I. Reactivity and Removal Kinetics

Hierarchically-organized, well-dispersed hydroxyapatite-coated magnetic carbon with combined organics and inorganics removal properties

Chemical Processes Affecting the Mobility of Heavy Metals and Metalloids in Soil Environments

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