Removal of ammonium from aqueous solution by ion exchange on natural and modified chabazite

Leyva‐Ramos, Roberto; Monsivais-Rocha, J.E.; Aragón‐Piña, Antonio; Berber-Mendoza, M.S.; Guerrero-Coronado, Rosa M.; Alonso-Dávila, Pedro A.; Mendoza‐Barron, Jovita

doi:10.1016/j.jenvman.2010.07.035

Cited by 83 publications

(44 citation statements)

References 28 publications

(44 reference statements)

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“…Similar tendencies were shown for the ammonium sorption onto other adsorbent materials, such as volcanic tuff whose main component is clinoptilolite [37] and NaA zeolite from halloysite mineral prepared by a two-step synthesis treatment (alkaline fusion followed by hydrothermal synthesis) [38]. Lower pH conditions were not considered in this work since previous studies have reported mass losses by dissolution as well as dealumination of zeolites at low pH values, especially at pH < 4 [14]. Strong basic conditions (pH > 8) were not evaluated since the NH 4 + concentration could decrease and the chemical equilibrium would be directed to the NH 3 (g) formation.…”

Section: Effect Of Phsupporting

confidence: 72%

“…e synthesis of NaP1 from a hazardous Al-waste was performed by an eco-friendly bench-scale hydrothermal process [17], contributing to reduce the consumption of raw materials (i.e., water and NaOH) and environmental impact. Although both natural zeolites and zeolites from fly ash have been widely used to remove ammonium from waters [13,14,18,19], studies conduced for zeolites from highly Alenriched wastes have not been reported, to our knowledge, in the literature.…”

Section: Introductionmentioning

confidence: 96%

“…Unlike activated carbons, some zeolites can be used directly in water treatment applications without any previous activation process. Clinoptilolite, a natural zeolite with a CEC ranged between 0.6 and 2.3 meq/g [12], is widely used due to its good selectivity to ammonium [13][14][15]. Among synthetic zeolites, NaP1 is also utilized in water treatment applications [16] due to its 3-dimensional channels with pore sizes ranged between 4.5 × 3.1 and 4.8 × 2.8Å (according to the International Zeolite Association).…”

Section: Introductionmentioning

confidence: 99%

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Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions

Sánchez-Hernández¹,

Padilla²,

López-Andrés

et al. 2018

International Journal of Chemical Engineering

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is work evaluates the use of a synthetic NaP1 zeolite obtained from a hazardous Al-containing waste for the removal of ammonium (NH 4 + ) from aqueous solutions by batch experiments. Experimental parameters, such as pH (6-8), contact time (1-360 min), adsorbent dose (1-15 g/L), and initial NH 4 + concentration (10-1500 mg/L), were evaluated. Adsorption kinetic models and equilibrium isotherms were determined by using nonlinear regression. e kinetic was studied by applying both the pseudo-firstorder and pseudo-second-order models.e equilibrium isotherms were analyzed according to two-parameter equations (Freundlich, Langmuir, and Temkin) and three-parameter equations (Redlich-Peterson, Sips, and Toth). e results showed that the NH 4 + uptake on NaP1 was fast (15 min) leading to a high experimental sorption capacity (37.9 mg/g). e NH 4 + removal on NaP1 was a favorable process that followed the pseudo-first-order kinetic model. e NH 4 + adsorption was better described by the Sips (54.2 mg/g) and Toth (58.5 mg/g) models. NaP1 zeolite from Al-waste showed good NH 4 + sorption properties, becoming a potential adsorbent to be used in the treatment of contaminated aqueous effluents. us, a synergic effect on the environmental protection can be achieved: the end of waste condition of a hazardous waste and the water decontamination.

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Section: Effect Of Phsupporting

confidence: 72%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions

Sánchez-Hernández¹,

Padilla²,

López-Andrés

et al. 2018

International Journal of Chemical Engineering

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“…These cations are held by weaker electrostatic forces and are exchanged with NH 4 + in the solution. There are more than 50 kinds of naturally occurring zeolites [24] which occur at different places and have different characteristics [25,26]. These differences in characteristics are attributed to variations in the regional geological formation [18].…”

Section: Methods Of Nitrogen Recovery Ion Exchange and Adsorption-basmentioning

confidence: 99%

Nitrogen and Phosphorus Recovery from Wastewater

2015

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Use of nitrogen-and phosphorus-based synthetic fertilizers shows an increasing trend, but this has led to largescale influx of reactive nitrogen in the environment, with serious implications on human health and the environment. On the other hand, phosphorus, a non-renewable resource, faces a serious risk of depletion. Therefore, recovery and reuse of nitrogen and phosphorus is highly desirable. For nitrogen recovery, an ion exchange/adsorption-based process provides concentrated streams of reactive nitrogen. Bioelectrochemical systems efficiently and effectively recover nitrogen as NH 3 (g) or (NH 4 ) 2 SO 4 . Air stripping of ammonia from anaerobic digestate has been reported to recover 70-92 % of nitrogen. Membrane separation provides recovery in the order of 99-100 % with no secondary pollutant in the permeate.With regard to phosphorus (P) removal, physical filtration and membrane processes have the potential to reduce suspended P to trace amounts but provide minimal dissolved P removal. Chemical precipitation can remove 80-99 % P in wastewater streams and recover it in the form of fertilizer (struvite). Acid hydrolysis can convert recovered P into usable phosphoric acid and phosphate fertilizers. Physical-chemical adsorption and ion exchange media can reduce P to trace or non-detect concentrations, with minimal waste production and high reusability. Biological assimilation through constructed wetlands removes both N (83-87 %) and P (70-85 %) from wastewaters, with recovery in the form of fish/animal feeds and biofuel. The paper discusses methods and important results on recovery of nitrogen and phosphorus from wastewater.

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“…Literature reports mention the use of iron nanoparticles supported on various materials such as clays [9,10], sawdust [11], activated carbon [12,13], natural [14] and synthetic zeolites [15,16] for removal of contaminants. Zeolite is an abundant natural resource and it has been used in the removal of heavy metals [17][18][19]. Thus the present study aims to use a Mexican natural zeolite Clinoptilolite, as a support material for iron nanoparticles, prepared by chemical reduction of an iron salt using sodium borohydride to study the sorption capacity of Cd (II) in aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Characterization of natural zeolite clinoptilolite for sorption of contaminants

et al. 2015

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The nanoparticles technology has received considerable attention for its potential applications in groundwater treatment for the removal of various pollutants as Cadmium. In this work, iron boride nanoparticles were synthesized in pure form and in presence of homo-ionized zeolite clinoptilolite, as support material. These materials were used for removing Cd (II) from aqueous solutions containing 10, 50, 100, 150, 200, 250, 400 mg/L. The characterization of these materials was made by using X-ray Diffraction, Scanning Electron Microscopy and Mössbauer Spectroscopy. Pure iron boride particles show a broad X-ray diffraction peak centered at 45 • (2θ ), inferring the presence of nanocrystals of Fe 2 B as identified from Mössbauer Spectroscopy. The size of these Fe 2 B particles was within the range of 50 and 120 nm. The maximum sorption capacities for Cd (II) of iron boride particles and supported iron boride particles in homo-ionized zeolitic material were nearly 100 %. For homo-ionized zeolite and homo-ionized zeolite plus sodium borohydride was ≥ 95 %.

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Removal of ammonium from aqueous solution by ion exchange on natural and modified chabazite

Cited by 83 publications

References 28 publications

Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions

Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions

Nitrogen and Phosphorus Recovery from Wastewater

Characterization of natural zeolite clinoptilolite for sorption of contaminants

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