Recycling of industrial wastewater by its immobilization in geopolymer cement

  • Tavor D
  • Wolfson A
  • Shamaev A
 et al. 
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In this work, we report, for the first time, on the recycling of industrial wastewater with a residual organic compound via its solidification in a geopolymer matrix. It was determined that, in most geopolymer compositions, the compressive strength of the binder increased with time, up to 4 weeks. The addition of phenol to the polymerization mixture of fly-ash-based geopolymers yielded high compressive strengths of 7085 MPa, as for phenol-free geopolymers. The analysis of phenol leaching from the fly-ash-based geopolymer showed some leakage only where the concentration of phenol in the water was similar to the phenol saturation concentration, whereas the metakaolin-based geopolymer also showed leakage, in lower concentrations.

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  • Dorith Tavor

  • Adi Wolfson

  • Anat Shamaev

  • Asia Shvarzman

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