An investigation into the effects high temperatures and STAR treatment has on sand properties

Rights statement
Awarding institution
  • University of Strathclyde
Date of award
  • 2012
Thesis identifier
  • T13278
Qualification Level
Qualification Name
Department, School or Faculty
  • Self-sustaining smouldering combustion is a novel technology applied to remediate Non Aqueous Phase Liquids (NAPLs) from soil. It requires a short energy input in order to achieve ignition, after which the process is self-sustained. Self Sustaining Treatment for Active Remediation (STAR) has proven to be successful with different types of contaminants, removing up to 99.99% of the pollutants from the soil. The ultimate aim of all remediation strategies is to fully restore the soil for reuse; although this technique has proven to be successful in the removal of the NAPLs, there are other issues that need to be investigated. Main issues of concern are: the reintroduction of water and soil nutrients, both of which are equally important for the soil's life and productivity. Previous research indicates that high temperatures have an effect on the manner in which water infiltrates, flows, and is accumulated within the soil. In addition, the employment of extremely high temperatures has shown to volatilize the soil nutrients and affect the soil's capability to absorb them. The purpose of this research was to study the effects high temperatures have on both of these sand characteristics and investigate if there is a possible linkage between them. This investigation showed that both sand features are affected by the treatment. Furthermore, an increase in the permeability value of STAR sand was found but was noted to be less significant than that observed in previous research. In addition, this research suggests an increase in nutrient retention, which was not initially expected. Future work should be followed to fully evaluate all the consequences of this technology. Also new strategies should be followed in order to prevent these negative effects if possible and to progress this very promising technique.
Resource Type
Date Created
  • 2012
Former identifier
  • 948367