Removal of captopril pharmaceutical from synthetic pharmaceutical-industry wastewaters: Use of activated carbon derived from Butia catarinensis

Mariene R. Cunha, Eder C. Lima, Diana R. Lima, Raphaelle S. da Silva, Pascal S. Thue, Moaaz K. Seliem, Farooq Sher, Glaydson S. dos Reis, Sylvia H. Larsson

Research output: Contribution to journalArticle

Abstract

A high surface area activated carbon was produced from the seed of Butia catarinensis (Bc), which was utilized for removing captopril from synthetic pharmaceutical industry wastewaters. The activated carbon was made by mixing ZnCl2 and Bc at a proportion of 1:1 and pyrolyzed at 600° (ABc-600). The material was characterized by the Boehm titration, hydrophilic/ hydrophobic ratio, elemental analysis, TGA, FTIR, and N2 isotherm (surface area (SBET), total pore volume (TPV), and pore size distribution (PSD)). The characterization data showed that the adsorbent displayed a hydrophilic surface due to the presence of several polar groups. The carbon material presented a TPV of 0.392 cm3 g−1, and SBET of 1267 m2 g−1. The equilibrium and kinetics data were suitably fitted to Liu isotherm and Avrami-fractional-order. The employment of the ABc-600 in the treatment of synthetic pharmaceutical industry wastewater exhibited high effectiveness in their removals (up to 99.0 %).

Original languageEnglish
Article number104506
JournalJournal of Environmental Chemical Engineering
Volume8
Issue number6
Early online date21 Sep 2020
DOIs
Publication statusE-pub ahead of print - 21 Sep 2020

Funder

Nanoscience and Nanotechnology Center (CNANO-UFRGS) of the Federal University of Rio Grande do Sul (UFRGS).

Keywords

  • Activated carbon
  • Biomass adsorbent
  • Efficient adsorption
  • Emerging contaminant
  • Mechanism of adsorption

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Waste Management and Disposal
  • Pollution
  • Process Chemistry and Technology

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