Simulation of Front Instabilities in Density-Driven Flow, Using a Reactive Transport Model for Biogrout Combined with a Randomly Distributed Permeability Field

Biogrout is a method to strengthen granular soil, which is based on microbial-induced carbonate precipitation. To model the Biogrout process, a reactive transport model is used. Since high flow rates are undesirable for the Biogrout process, the model equations can be solved with a standard Galerkin finite element method. The Biogrout process...

A Reactive Transport Model for Biogrout Compared to Experimental Data

Biogrout is a method for reinforcement of granular soil. In the Biogrout process, calcium carbonate is produced. This solid connects the grains, and therefore the strength of the soil is increased. The calcium carbonate is formed with the use of micro-organisms. Experiments and numerical simulations have been performed to demonstrate the process...

A mathematical model and analytical solution for the fixation of bacteria in biogrout

Biogrout is a new method for soil reinforcement, which is based on microbialinduced carbonate precipitation. Bacteria and reactants are flushed through the soil, resulting in calcium carbonate precipitation and consequent soil reinforcement. Bacteria are crucially important in the Biogrout process since they catalyse the reaction. Hence, to...

Biologische sedimentatie van gesuspendeerd slib en sedimentstabilisatie

In het kader van het Delft cluster onderzoeksprogramma Wetlands onderzoekt ‘Biotools’ methoden om de concentratie gesuspendeerd materiaal in een zoetwateromgeving versneld te laten bezinken door toevoeging van biologische additieven (biosedimentatie) en polysacchariden die flocculatie teweeg brengen waardoor gesuspendeerd slib sneller bezinkt ...

Modelling Biogrout: A new ground improvement method based on microbial induced carbonate precipitation

Inceptierapport Waterkwaliteit en Calamiteiten

Modelcode bronfunctie olieverontreiniging

RO & ABIS: Urban planning and soil management

Seasonal heat storage in the soil