articleJournal of Geotechnical and Geoenvironmental EngineeringNov 17, 2011Closed access

Factors Affecting Efficiency of Microbially Induced Calcite Precipitation

AAA. AL QABANYKSKenichi SogaJCJ. Carlos Santamarina

University of Cambridge · Georgia Institute of Technology

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Abstract

Microbially induced carbonate precipitation (MICP) using ureolytic bacteria shows promise in the field of geotechnical engineering for several different applications, such as ground improvement and groundwater control. This study examined optimal use and efficient control of Sporosarcina pasteurii to induce the precipitation of CaCO3 in open environments. Laboratory tests were conducted to investigate the effect of changing treatment factors, such as chemical concentrations, retention times, and effective input rates (mol/L/h) on chemical efficiency. Chemical efficiency was measured based on weight measurements of CaCO3 precipitation compared with the amount of chemical reactants injected to samples. Based on…

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Topics & keywords

Topics
Keywords
  • Cementation (geology)
  • Calcite
  • Precipitation
  • Groundwater
  • Carbonate
  • Chemistry
  • Soil science
  • Environmental chemistry
UN Sustainable Development Goals
  • Clean water and sanitation
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