Carbon reclamation from biogas plant flue gas for immobilizing lead and neutralizing alkalis in municipal solid waste incineration fly ash

Z. Zhu et al.

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Document Outline

• Carbon reclamation from biogas plant flue gas for immobilizing lead and neutralizing alkalis in municipal solid waste incin ...
  • 1 Introduction
  • 2 Materials and methods
    • 2.1 Materials and reagents
    • 2.2 Gas source and accelerated carbonation process
    • 2.3 Carbonation calculations
      • 2.3.1 Carbonation conversion
      • 2.3.2 Theoretical CO2 capture capacity
    • 2.4 Heavy metal Pb analysis
      • 2.4.1 Pb leaching test
      • 2.4.2 Pb speciation analysis
      • 2.4.3 pH based leaching analysis
      • 2.4.4 Curing based leaching analysis
      • 2.4.5 Acid neutralization capacity analysis
      • 2.4.6 Alkaline corrosion analysis
    • 2.5 Characterization
  • 3 Results and discussion
    • 3.1 Pb leaching behavior
      • 3.1.1 Effects of carbonation on the Pb release
      • 3.1.2 Effects of carbonation on the Pb speciation
      • 3.1.3 Effects of carbonation on pH correlation-leaching of Pb
      • 3.1.4 Effects of carbonation on curing correlation-leaching of Pb
    • 3.2 Acid neutralization and leaching corrosion behavior
      • 3.2.1 Effects of carbonation on the variation of ANC
      • 3.2.2 Effects of carbonation on the variation of alkaline corrosion
    • 3.3 Characterization of raw and carbonated FA
      • 3.3.1 Particle size analysis
      • 3.3.2 XRD analysis
      • 3.3.3 XRF analysis
      • 3.3.4 Thermal analysis
      • 3.3.5 Morphology analysis
    • 3.4 Mechanism involved in the carbonation process
    • 3.5 Carbonation conversion and economic analysis
      • 3.5.1 Carbonation conversion analysis
      • 3.5.2 Economic analysis
  • 4 Conclusions
  • CRediT authorship contribution statement
  • Declaration of Competing Interest
  • Acknowledgments
  • Appendix A Supplementary data
  • References