A variety of techniques are employed in geotechnical engineering practice to improve the in situ properties of soils. Different techniques are applicable to different types of soil. The technology of using microbially induced carbonate precipitation (MICP) as a means of improving the properties of sandy soil has attracted a significant amount of interest...

A consistent environmental challenge presented at mining sites worldwide is the formation of mining-influenced water (MIW). Characterized by alterations in water chemistry due to mining or mineral processing, MIW streams are typically acidic and often contain elevated concentrations of heavy metals and metalloids, which may pose a threat to human health,...

Background Effective ground improvement methods are essential for optimal utilization of land, whether they be roads, embankments, dunes, or slopes. Conventional methods using compaction, pile insertion, and cement-soil mixing provide adequate stability but have several major drawbacks. They are often expensive, time-consuming, require specialized...

­Groundwater remediation is the process that is used to treat groundwater by removing pollutants. There are different groundwater remediation methods, but they all have the same goal: clean polluted water. One method is bioremediation wherein a biological system is employed for removing environmental pollutants. In situ remediation of subsurface...

Civil and geotechnical engineers must fortify sandy soil in order to build durable structures on loose terrain. Effective soil cementation can be achieved by microbial induced carbonate precipitation (MICP), a process using microbes to generate urease enzymes that catalyze calcium carbonate precipitation. However, MICP is limited by the large size of...

Enzyme-induced carbonate precipitation (EICP) is a technique used for soil stabilization. EICP cements soil particles together using urease enzymes to precipitate calcium carbonate in a water-based solution. EICP may be used as a means of improving the bearing capacity of soils, preventing erosion, and mitigating the potential for earthquake‐induced...

Soil contamination is a worldwide problem, whether it is from heavy hydrocarbon spills, industrial activity or agricultural chemicals, and there are many different strategies for treatment. One thing of utmost importance, no matter what treatment strategy is utilized, is the prevention of downward and outward migration of pollutants at treatment sites....