Characterization of burcucumber biochar and its potential as an adsorbent for veterinary antibiotics in water

Jung Eun Lim, Hae Won Kim, Se Hee Jeong, Sang Soo Lee, Jae E. Yang, Kye Hoon Kim, Yong Sik Ok

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5 Citations (Scopus)

Abstract

Biochar (BC) from biomass pyrolysis is a carbonaceous material that has been used to remove various contaminants in the environment. The eliminatory action for burcucumber (Sicyos angulatus L.) as an invasive plant is being consistently carried out because of its harmfulness and ecosystem disturbance. In this study, burcucumber biomass was converted into BCs at different pyrolysis temperatures of 300 and 700°C under a limited oxygen condition. Produced BCs were characterized and investigated to ensure its efficiency on antibiotics' removal in water. The adsorption experiment was performed using two different types of antibiotics, tetracycline (TC) and sulfamethazine (SMZ). For the BC pyrolyzed at a high temperature (700°C), the values of pH, electrical conductivity, and the contents of ash and carbon increased whereas the yield, mobile matter, molar ratios of H/C and O/C, and functional groups decreased. Results showed that the efficiency of BCs on antibiotics' removal increased as pyrolysis temperature increased from 300 to 700°C (38 to 99% for TC and 6 to 35% for SMZ). The reaction of π-π EDA (electron-donor-acceptor) might be involved in antibiotics' adsorption to BCs. BC has potential to be a superior antibiotics' adsorbent with environmental benefit by recycling of waste/invasive biomass.

Original languageEnglish
Pages (from-to)65-72
Number of pages8
JournalJournal of Applied Biological Chemistry
Volume57
Issue number1
DOIs
Publication statusPublished - 2014 Jan 1
Externally publishedYes

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Keywords

  • Bioenergy
  • Black carbon
  • Charcoal
  • Proximate analysis
  • Slow pyrolysis
  • Ultimate analysis

ASJC Scopus subject areas

  • Bioengineering
  • Organic Chemistry

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