Recycling of biogenic hydroxyapatite (HAP) for cleaning of lead from wastewater: Performance and mechanism

Huawei WANG, Zijuan LV, Ya-nan WANG, Yingjie SUN, Yiu Fai TSANG

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1 Citation (Scopus)

Abstract

In China, the utilization and recycling of chicken waste have become a significant environmental issue. In this study, we investigate the efficacy of biogenic hydroxyapatite (HAP) materials, recycled from chicken waste, for Pb(II) sequestration from wastewater. The results from batch experiments indicate that biogenic HAP could effectively remove Pb(II) from an aqueous solution. The maximum removal efficiency of Pb (more than > 99%) was observed under the following operational conditions: initial pH of 3.0, initial Pb(II) concentrations of 208 mg/L, and 1 g/L of HAP adsorbents. The presence of coexisting divalent ions, including Ca²⁺, Mg²⁺, and Mn²⁺, had no significant influence on Pb(II) removal. Spectroscopic analysis suggests that the dissolution-precipitation mechanism was mainly responsible for Pb(II) sequestration under acidic conditions (pH ≤ 3.0). Our findings indicate that biogenic HAP recycled from biowaste can be used as an efficient adsorbent for cleaning Pb(II) from wastewater. Copyright © 2021 Springer-Verlag GmbH Germany, part of Springer Nature.
Original languageEnglish
Pages (from-to)29509–29520
JournalEnvironmental Science and Pollution Research
Volume28
Issue number23
Early online date09 Feb 2021
DOIs
Publication statusPublished - Jun 2021

Citation

Wang, H., Lv, Z., Wang, Y.-N., Sun, Y., & Tsang, Y. F. (2021). Recycling of biogenic hydroxyapatite (HAP) for cleaning of lead from wastewater: Performance and mechanism. Environmental Science and Pollution Research, 28(23), 29509–29520. doi: 10.1007/s11356-020-10855-4

Keywords

  • Biogenic hydroxyapatite
  • Heavy metals
  • Thermal treatment
  • Biowaste
  • Resource recovery

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