Evaluating strategies to improve process efficiency of denitrification-based MICP

Microbially induced carbonate precipitation (MICP) through denitrification can potentially be applied as a bio-based ground improvement technique. Two strategies involving multiple batch treatments in a modified triaxial test setup were used to study the process efficiency. Both strategies aim to achieve 1 weight percentage (% by weight) of...

Bio-based ground improvement through Microbial Induced Desaturation and Precipitation (MIDP)

Improving and alternating soil foundation conditions is a common task in construction and civil engineering. Besides conventional ground improvement methods, there are several biological processes that can improve ground properties by precipitating calcium carbonate. Denitrification is one of the biological processes that can be used. The...

Applying MICP by denitrification in soils: A process analysis

The process of microbially induced carbonate precipitation (MICP) by denitrification was investigated in relation to its potential use as a ground improvement method. Liquid batch experiments indicated that the substrate solution had an optimum carbon–nitrogen ratio of 1·6 and confirmed that combining nitrate reduction and calcium carbonate...

Rice husk ash with high carbon content proves favourable for soil stabilization

Rice husk ash is a promising pozzolanic material produced from rice husk burning and has significant potential a sustainable replacement for cement in construction and ground improvement applications. In this study the effect of burning conditions on the ash reactivity and its potential for soil stabilization applications have been investigated...