Bio-Grout Based Soil Improvement-Video

Video Transcription

Video Summary

Dimitris Terzis, EPFL lecturer and Medusoil co-founder, presents bio-cementation as a sustainable alternative to conventional grouting. The technique uses microbially produced carbonates to bind soil while retaining permeability and achieving useful strength. Its major challenge is residual nitrogen, which can harm the environment; Medusoil removes ammonia during off-site processing and sells it as fertilizer. Swiss projects demonstrated soil strengthening for slope stabilization and erosion protection, with field measurements confirming improved resistance. Terzis also reports around 55% lower CO₂ emissions than comparable cement-grouted columns, emphasizing that nitrogen removal, scalability, cost, and environmental compliance are essential for broader adoption.

Keywords

bio-cementation

soil stabilization

microbial carbonates

ammonia removal

sustainable grouting