Lead removal by a magnetic biochar derived from persulfate-ZVI treated sludge together with one-pot pyrolysis

Yi di Chen, Shih Hsin Ho, Dawei Wang, Zong su Wei, Jo Shu Chang, Nan qi Ren

Research output: Contribution to journalArticlepeer-review

113 Citations (Scopus)

Abstract

In this study, a novel method to treat the persulfate-ZVI dewatered WAS by producing a magnetic biochar as an environmentally friendly biosorbent (nZVI-WSBC) to remove heavy metals (HMs) from wastewaters was proposed. The nZVI-WSBC exhibited good adsorption property of Pb2+ and the adsorption isotherm data were fitted well to Langmuir isotherm. Corresponding reaction kinetics fitted well with the pseudo second-order adsorption model. Notably, nZVI-WSBC was successfully used for efficient removal of HMs from real. This study comprehensively demonstrates the mechanisms between Pb2+ and nZVI-WSBC surfaces, providing a breakthrough in making a sustainable biosorbent from the dewatered iron-containing WAS.

Original languageEnglish
Pages (from-to)463-470
Number of pages8
JournalBioresource technology
Volume247
DOIs
Publication statusPublished - 2018

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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