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Lead removal from synthetic wastewater by biosorbents prepared from seeds of Artocarpus Heterophyllus and Syzygium Cumini

  • Deen Dayal Giri
  • , Alaa Alhazmi
  • , Akbar Mohammad
  • , Shafiul Haque
  • , Neha Srivastava
  • , Vijay Kumar Thakur
  • , Vijai Kumar Gupta
  • , Dan Bahadur Pal
  • Maharaj Singh College
  • Jazan University
  • Yeungnam University
  • Uludag University
  • Indian Institute of Technology Banaras Hindu University
  • Scotland's Rural College
  • University of Petroleum and Energy Studies
  • Birla Institute of Technology, Mesra

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

The present investigation deals with removal of lead (Pb+2) ions from waste water using biosorbent prepared from seeds of Artocarpus heterophyllus (SBAh) and Syzygium cumini (SBSc). Biosorbents surface has been characterized through FT-IR spectroscopy to probe the presence of functional groups. Response surface methodology enabled optimized conditions (Pb+2 concentration 2 μg/mL, pH 5.8 and bioadsorbent dose 60 mg) resulted in Pb+2 removal ~96% for SBAh and ~93% for SBSc at agitation speed 300 rpm. The adsorption capacity has been found to be 4.93 mg/g for SBAh and 3.95 mg/g for SBSc after 70 min. At optimal experimental conditions, kinetics of biosorption was explained well by inter-particle diffusion model for SBAh (R2 = 0.99) whereas Elovich model best fitted for SBSc (R2 = 0.98). Further, both the biosorbents followed Temkin adsorption isotherm model.

Original languageEnglish
Article number132016
JournalChemosphere
Volume287
DOIs
StatePublished - Jan 2022
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 6 - Clean Water and Sanitation
    SDG 6 Clean Water and Sanitation

Keywords

  • Artocarpus heterophyllus (SBAh)
  • Bio-sorbent
  • Biochar
  • Lead removal
  • Seeds
  • Syzygium cumini (SBSc)

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