Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Bolivian natural zeolite as a low-cost adsorbent for the adsorption of cadmium: Isotherms and kinetics
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science. Department of Chemistry, Faculty of Science and Technology, Universidad Mayor de San Simón, UMSS, Cochabamba, Bolivia.ORCID iD: 0000-0002-5109-5017
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-4628-3857
Department of Chemistry, Faculty of Science and Technology, Universidad Mayor de San Simón, UMSS, Cochabamba, Bolivia.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0003-4888-6237
2024 (English)In: Heliyon, E-ISSN 2405-8440, Vol. 10, no 1, article id e24006Article in journal (Refereed) Published
Abstract [en]

Population growth in recent years has led to increased wastewater production and pollution of water resources. This situation also heavily affects Bolivia, so wastewater treatment methods and materials suitable for Bolivian society should be explored. This study investigated the natural Bolivian Zeolite (BZ) and its NaCl-modified structure (NaBZ) as adsorbents for cadmium removal from water. The natural BZ and the modified form NaBZ were investigated by different physicochemical characterization techniques. Furthermore, XPS and FT-IR techniques were used to investigate the adsorption mechanisms. The cadmium adsorption on BZ and NaBZ was analyzed using various mathematical models, and the Langmuir model provided a better description of the experimental adsorption data with cadmium adsorption capacities of 20.2 and 25.6 mg/g for BZ and NaBZ, respectively. The adsorption followed the pseudo-second order kinetics. The effect of different parameters, such as initial cadmium concentration and pH on the adsorption was studied. In addition, the results of the regeneration test indicated that both BZ and NaBZ can be regenerated by using hydrochloric acid (HCl). Finally, the adsorption experiment of BZ and NaBZ on a real water sample (brine from Salar de Uyuni salt flat) containing a mixture of different heavy metals was carried out. The results obtained in this study demonstrate the effectiveness of natural BZ and modified NaBZ in the removal of heavy metals from wastewater.

Place, publisher, year, edition, pages
Elsevier, 2024. Vol. 10, no 1, article id e24006
Keywords [en]
Adsorption, Cadmium, Clinoptilolite, Heavy metals, Natural zeolites
National Category
Organic Chemistry
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-103749DOI: 10.1016/j.heliyon.2024.e24006ISI: 001156685700001PubMedID: 38234893Scopus ID: 2-s2.0-85181824101OAI: oai:DiVA.org:ltu-103749DiVA, id: diva2:1828060
Funder
Sida - Swedish International Development Cooperation Agency, 13486
Note

Validerad;2024;Nivå 2;2024-02-01 (signyg);

Full text license: CC BY

Available from: 2024-01-16 Created: 2024-01-16 Last updated: 2024-04-19Bibliographically approved

Open Access in DiVA

fulltext(4964 kB)19 downloads
File information
File name FULLTEXT02.pdfFile size 4964 kBChecksum SHA-512
2f16b7da4ac0b3dcfa4e13d3028ecd7f152cd1f118cb3006236aa48c78c22a3fad3aa87356a6f94eeaad0cd048c4d39b7031d3a1bf0c3ffb9f28814c145511ec
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMedScopus

Authority records

Velarde, LisbaniaNikjoo, DariushAkhtar, Farid

Search in DiVA

By author/editor
Velarde, LisbaniaNikjoo, DariushAkhtar, Farid
By organisation
Material Science
In the same journal
Heliyon
Organic Chemistry

Search outside of DiVA

GoogleGoogle Scholar
Total: 50 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 141 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf