Remediation of trichloroethylene by microscale zero-valent iron aged under various groundwater conditions: Removal mechanism and physicochemical transformation

Effects of organic carbon content on in situ remediation time using steam–air injection

“…The remediation technique to be employed entirely depends on the type of contaminants present in the soil, contaminant location, the soil's properties (physical & chemical) and the operational conditions (Albergaria et al 2012). Several remediation techniques, such as adsorptive wells (Bortone et al 2019), electrical resistance heating (Geng et al 2021), use of nanoparticles (Idrees et al 2021) and oxidation techniques using the microscale zero-valent iron (mZVI) (Tang et al 2021), have been successfully employed in the remediation process of groundwater with excellent performance realized. However, with the use of some of the techniques, for example mZVI, the aging behaviour of injected mZVI particles has been reported to limit the widespread application in groundwater projects (Tang et al 2021), as the corrosion precipitates greatly affects its effectiveness with time.…”