Development of polymer-based nanosized hydrated ferric oxides (HFOs) for enhanced phosphate removal from waste effluents

Pan, Bingjun; Wu, Jun; Pan, Bingcai; Lv, Lu; Zhang, Weiming; Xiao, Lili; Wang, Xiaoshu; Xiancong, Tao; Zheng, Shourong

doi:10.1016/j.watres.2009.06.055

Cited by 288 publications

(158 citation statements)

References 34 publications

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“…The effect of temperature on the adsorption of Mn 2+ was investigated in order to calculate the thermodynamic parameter; 0.05 g of adsorbent was mixed with 10 mL of 200 mgL -1 metal ion solutions at a range of temperature from 303-333 K [11].…”

Section: F the Effect Of Adsorption Thermodynamicmentioning

confidence: 99%

Adsorption Study for Removal of Mn (II) Ion in Aqueous Solution by Hydrated Ferric (III) Oxides

Puttamat¹,

Pavarajarn²

2016

IJCEA

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Section: F the Effect Of Adsorption Thermodynamicmentioning

confidence: 99%

Adsorption Study for Removal of Mn (II) Ion in Aqueous Solution by Hydrated Ferric (III) Oxides

Puttamat¹,

Pavarajarn²

2016

IJCEA

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“…Nanomaterials have novel physical, chemical, and biological properties and have many potential applications for water treatment (10)(11)(12)(13). These applications are increasing in number progressively and include adsorption, oxidation, and the minimization of contaminants in water and wastewater (14)(15)(16)(17)(18).…”

mentioning

confidence: 99%

Nanoalumina promotes the horizontal transfer of multiresistance genes mediated by plasmids across genera

Qiu¹,

Chen³

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

454

264

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Antibiotic resistance is a worldwide public health concern. Conjugative transfer between closely related strains or species of bacteria is an important method for the horizontal transfer of multidrug-resistance genes. The extent to which nanomaterials are able to cause an increase in antibiotic resistance by the regulation of the conjugative transfer of antibiotic-resistance genes in bacteria, especially across genera, is still unknown. Here we show that nanomaterials in water can significantly promote the horizontal conjugative transfer of multidrug-resistance genes mediated by the RP4, RK2, and pCF10 plasmids. Nanoalumina can promote the conjugative transfer of the RP4 plasmid from Escherichia coli to Salmonella spp. by up to 200-fold compared with untreated cells. We also explored the mechanisms behind this phenomenon and demonstrate that nanoalumina is able to induce oxidative stress, damage bacterial cell membranes, enhance the expression of mating pair formation genes and DNA transfer and replication genes, and depress the expression of global regulatory genes that regulate the conjugative transfer of RP4. These findings are important in assessing the risk of nanomaterials to the environment, particularly from water and wastewater treatment systems, and in the estimation of the effect of manufacture and use of nanomaterials on the environment.

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“…In this regard, the modifications of polymers or 7 other supports with NPs have been used recently [68,69] [74,75]. Anionic resins impregnated with HFO were studied for phosphorus removal [76,77,78,79]. In general, polymeric anion exchange resins have low phosphate exchange capacity and poor selectivity factors against common ions present in wastewater (chloride, sulfate, bicarbonate, nitrate and dissolved organic matter) [19].…”

mentioning

confidence: 99%

Phosphate removal and recovery from water using nanocomposite of immobilized magnetite nanoparticles on cationic polymer

Markeb

Alonso

Dorado

et al. 2016

Environmental Technology

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Highlights• Immobilization of magnetite nanoparticles on cationic polymer was synthesized.• Phosphate removal using magnetite based nanocomposites was tested.• Adsorption isotherms of phosphate at two pH; 5 and 7 were performed.• Different isotherms models were applied for experimental data fitting.• Regeneration and reusability of the magnetite based nanocomposites were carried out. Graphical Abstract 2 AbstractA novel nanocomposite based on magnetite nanoparticles (Fe3O4-NPs) immobilized on the surface of the cationic exchange polymer, C100, using a modification of the coprecipitation method was developed to obtain magnetic nanocomposites (NCs) for phosphate removal and recovery from water. High resolution TEM-EDS, SEM, XRD, and ICP-OES were used to characterize the NCs. The continuous adsorption process by the so-called breakthrough curves was used to determine the adsorption capacity of the Fe3O4 based NC. The adsorption 3 capacity conditions were studied under different conditions (pH, phosphate concentration and concentration of NPs). The optimum concentration of iron in the NC for phosphate removal was 23.59 mgFe/gNC. The sorption isotherms of this material were performed at pHs 5 and 7.Taking into account the real application of this novel material in real water, the experiments were performed at pH 7, achieving an adsorption capacity higher than 4.9 mgPO4-P/gNC.Moreover, Freundlich, Langmuir and a combination of them fit the experimental data and were used for interpreting the influence of pH on the sorption and the adsorption mechanism for this novel material. Furthermore, regeneration and reusability of the nanocomposite were tested obtaining 97.5 % recovery of phosphate for the first cycle and at least 7 cycles of adsorptiondesorption were carried out with more than 40% of recovery. Thus, this work described a novel magnetic nanoadsorbent with promoting properties for phosphate recovery in wastewater.

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Development of polymer-based nanosized hydrated ferric oxides (HFOs) for enhanced phosphate removal from waste effluents

Cited by 288 publications

References 34 publications

Adsorption Study for Removal of Mn (II) Ion in Aqueous Solution by Hydrated Ferric (III) Oxides

Adsorption Study for Removal of Mn (II) Ion in Aqueous Solution by Hydrated Ferric (III) Oxides

Nanoalumina promotes the horizontal transfer of multiresistance genes mediated by plasmids across genera

Phosphate removal and recovery from water using nanocomposite of immobilized magnetite nanoparticles on cationic polymer

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