Adsorption of arsenic on pre-treated zeolite at different ph levels

Flerida Mejia-Zamudio, Jesus Valenzuela-Garcia, Agustin Gomez-Alvarez, Diana Meza-Figueroa, Wendell P Ela

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Natural zeolites are widely used to minimise the impact of some pollutants in the environment, such as the removal of metals in various water sources as well as effluents used in the mining and metallurgical industry and in the treatment of mining acid solutions. The most common varieties of zeolites are analcime, chabazite, clinoptilolite, heroinite, ferrierite, mordenite. Researchers have studied for decades their synthesis, structure and proprieties, and as a result a large number of patents have been obtained on the preparation of different types of zeolite in conjunction with metals or metal compounds as selective adsorbents for anions and cations of water solutions. For example, iron, zirconium and magnesium hydroxide show selectivity in the adsorption of arsenic among other industrial applications of great interest. This study shows the importance of using natural pre-treated zeolites in the adsorption of arsenic in water due to the adsorption percentages that are higher than 90%, controlling the pH in the pre-treatment. Samples were treated at different pH levels, getting a better adjustment of isotherms of adsorption at pH = 9 with ZP-9.

Original languageEnglish (US)
Pages (from-to)280-284
Number of pages5
JournalChemical Speciation and Bioavailability
Volume25
Issue number4
DOIs
StatePublished - Nov 2013

Fingerprint

Zeolites
Arsenic
Adsorption
Metals
Water
Magnesium Hydroxide
Patents
Zirconium
Adsorbents
Industrial applications
Anions
Isotherms
Magnesium
Cations
Effluents
Industry
Negative ions
Iron
Positive ions
Research Personnel

Keywords

  • Adsorption
  • Arsenic
  • Natural zeolite
  • Ph

ASJC Scopus subject areas

  • Chemical Health and Safety
  • Health, Toxicology and Mutagenesis
  • Toxicology

Cite this

Adsorption of arsenic on pre-treated zeolite at different ph levels. / Mejia-Zamudio, Flerida; Valenzuela-Garcia, Jesus; Gomez-Alvarez, Agustin; Meza-Figueroa, Diana; Ela, Wendell P.

In: Chemical Speciation and Bioavailability, Vol. 25, No. 4, 11.2013, p. 280-284.

Research output: Contribution to journalArticle

Mejia-Zamudio, F, Valenzuela-Garcia, J, Gomez-Alvarez, A, Meza-Figueroa, D & Ela, WP 2013, 'Adsorption of arsenic on pre-treated zeolite at different ph levels', Chemical Speciation and Bioavailability, vol. 25, no. 4, pp. 280-284. https://doi.org/10.3184/095422913X13840126102755
Mejia-Zamudio, Flerida ; Valenzuela-Garcia, Jesus ; Gomez-Alvarez, Agustin ; Meza-Figueroa, Diana ; Ela, Wendell P. / Adsorption of arsenic on pre-treated zeolite at different ph levels. In: Chemical Speciation and Bioavailability. 2013 ; Vol. 25, No. 4. pp. 280-284.
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